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    <title>DIN 1505-2 (author-date, Deutsch) - standard superseded by ISO-690</title>
    <id>http://www.zotero.org/styles/din-1505-2</id>
    <link href="http://www.zotero.org/styles/din-1505-2" rel="self"/>
    <link href="http://www.bui.haw-hamburg.de/fileadmin/redaktion/diplom/Lorenzen__litverz.pdf" rel="documentation"/>
    <link href="http://bibliothek.fh-potsdam.de/fileadmin/fhp_bib/dokumente/Schulungen/wissenschaftliches_Arbeiten/Zitieren_Lorenzen.pdf" rel="documentation"/>
    <link href="http://www.uni-muenster.de/imperia/md/content/fachbereich_physik/didaktik_physik/materialien/materialschlichting/zitierregeln.pdf" rel="documentation"/>
    <link href="http://forums.zotero.org/discussion/1857" rel="documentation"/>
    <author>
      <name>Sven Rothe</name>
      <email>mmoole@googlemail.com</email>
    </author>
    <contributor>
      <name>Julian Onions</name>
      <email>julian.onions@gmail.com</email>
    </contributor>
    <category citation-format="author-date"/>
    <category field="generic-base"/>
    <summary>Style following DIN 1505-2, for other media types on additional standards 
      Hinweise zur Benutzung: 
      * Zitieren von Gesetzen: 
        - hier müssen manuell §, Abs und S. zur Seitenangabe beim Zitieren eingetragen werden 
        - im Kurzbeleg wird der Kurztitel verwendet, dafür keine Autoren eintragen! 
        - als Jahresangabe wird 'Datum des Inkrafttretens' herangezogen, Verwenden nur bei Verweis auf nicht z.Z. gültige Gesetze, z.B. (idF. v. 12.12.1972) 
       * Zitieren von Normen und Standards - nicht vollständig nach DIN 1505
        - Nutzen Sie den Typ 'Bericht' - als Abhilfe, da es keinen Typ 'Standard' gibt.
        - als Autor die Kurzbezeichnung inkl. Nummer und Jahr eingeben (z.B. VDI 2222-1997), Vorname leer, Jahr leer
        - als Titel den ausführlichen Titel bei Bedarf (z.B. VDI Richtlinie 2222 Blatt 1 - Konstruktionsmethodik - Methodisches Entwickeln von Lösungsprinzipien)</summary>
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            Feel free to send me any comments, suggestions etc...
            todo:
            * basic media types (book, journal article, etc..)
            * more media types (according DINxxx) audio video etc...
            * fine tuning
            * correcting errors
            known bugs, help appreciated
            * Abbreviations (Mitarb.) & (Hrsg. der Reihe) are missing (contributor, seriesEditor labels)
            * "contributor" is not valid as a name variable , nevertheless it works but doesnt validate!
            * author etc. first names should not be abbreviated
            * reviewed author seems to be not available as variable (newspaper article)
            * thesis type does notoffer a PLACE or FACULTY as variable!
            how to show the place if it is not included in the University title!?!?
            * thesis type: publisher (university), genre (type) dont seem to get through!?
    -->
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      em dash: &#8212;
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    <updated>2021-06-08T12:26:31+00:00</updated>
    <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
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2026[ to top ]

Rauch, Lukas ; Heinrich, René ; Ghaffari, Houtan ; Miklautz, Lukas ; Moummad, Ilyass ; Sick, Bernhard ; Scholz, Christoph:Unmute the Patch Tokens: Rethinking Probing in Multi-Label Audio Classification.. In: International Conference on Learning Representations (ICLR), 2026. — (accepted)
- [ Abstract ]
- [ BibSonomy-Post ]
Although probing frozen models has become a standard evaluation paradigm, self-supervised learning in audio defaults to fine-tuning when pursuing state-of-the-art on AudioSet. A key reason is that global pooling creates an information bottleneck causing linear probes to misrepresent the embedding quality: The \texttt{cls-token discards crucial token information about dispersed, localized events in audio. This weakness is rooted in the mismatch between the pretraining objective (globally) and the downstream task (localized). Across a comprehensive benchmark of 13 datasets and 6 spectrogram-based encoders, we investigate the global pooling bottleneck. We introduce binarized prototypical probes: a lightweight and simple pooling method that learns prototypes to perform class-wise information aggregation. Despite its simplicity, our method notably outperforms linear and attentive probing. Our work establishes probing as a competitive and efficient paradigm for evaluating audio SSL models, challenging the reliance on costly fine-tuning.
Hassouna, Mohamed ; Holzhüter, Clara ; Lehna, Malte ; de Jong, Matthijs ; Viebahn, Jan ; Sick, Bernhard ; Scholz, Christoph:Learning Topology Actions for Power Grid Control: A Graph-Based Soft-Label Imitation Learning Approach.. In: European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases (ECMLPKDD) : Springer, 2026, pp. 129–146
- [ Abstract ]
- [ URL ]
- [ DOI ]
- [ BibSonomy-Post ]
The rising proportion of renewable energy in the electricity mix introduces significant operational challenges for power grid operators. Effective power grid management demands adaptive decision-making strategies capable of handling dynamic conditions. With the increase in complexity, more and more Deep Learning (DL) approaches have been proposed to find suitable grid topologies for congestion management. In this work, we contribute to this research by introducing a novel Imitation Learning (IL) approach that leverages soft labels derived from simulated topological action outcomes, thereby capturing multiple viable actions per state. Unlike traditional IL methods that rely on hard labels to enforce a single optimal action, our method constructs soft labels that capture the effectiveness of actions that prove suitable in resolving grid congestion. To further enhance decision-making, we integrate Graph Neural Networks (GNNs) to encode the structural properties of power grids, ensuring that the topology-aware representations contribute to better agent performance. Our approach significantly outperforms its hard-label counterparts as well as state-of-the-art Deep Reinforcement Learning (DRL) baseline agents. Most notably, it achieves a 17% better performance compared to the greedy expert agent from which the imitation targets were derived.
Janson, Andreas ; Barev, Torben Jan: Making the default more legitimate – the role of autonomy and transparency for digital privacy nudges. In: Information Technology & People vol. 39 (2026), Nr. 1, pp. 428–455
- [ Abstract ]
- [ DOI ]
- [ BibSonomy-Post ]
Purpose This paper examines the concept of digital privacy nudging, a promising approach from behavioral economics that uses subtle cues to influence people’s decisions online. We research the concepts of autonomy and transparency for privacy nudging in digital networking systems for the context of digital work. Design/methodology/approach The paper draws on the literature on digital privacy nudging to develop and test a theoretical model that takes into account legitimate nudge designs, which are those that ensure autonomy and transparency. We utilize a fully randomized between-subjects online experiment with 208 participants to test the effects of different nudge designs on decision outcomes and perceptions. We use a structural equation modeling approach for evaluating the theoretical model. Findings The paper presents two major findings. First, we conceptualize the concept of legitimate nudging and implement the concept empirically with nudges that promote autonomy and transparency in the context of defaults as digital privacy nudges. Second, our findings show that autonomy-promoting nudges significantly lower reactance that is significantly associated with a lower acceptance of digital nudging. Finally, we provide evidence that the acceptance of digital nudging is also crucial for trusting digital systems where nudges are oftentimes embedded in. Research limitations/implications The paper contributes to the literature on digital nudging by providing insights into more legitimate nudge designs through providing autonomy and transparency. Our research provides in this regard implications for nudge effectiveness and the overall debate concerning ethics in digital nudging. We also offer practical implications for organizations and information systems designers who want to use nudges in a responsible way. Originality/value This paper is one of the first to empirically investigate the role of legitimacy in digital nudging and to propose a framework for designing and evaluating legitimate nudges. It also provides insights into the perceptional downstream consequences of legitimate nudging.
Hassouna, Mohamed ; Holzhüter, Clara ; Lytaev, Pawel ; Thomas, Josephine ; Sick, Bernhard ; Scholz, Christoph: Graph reinforcement learning for power grids: A comprehensive survey. In: Energy and AI vol. 23, Elsevier (2026), p. 100671
- [ Abstract ]
- [ URL ]
- [ DOI ]
- [ BibSonomy-Post ]
The increasing share of renewable energy and distributed electricity generation requires the development of deep learning approaches to address the lack of flexibility inherent in traditional power grid methods. In this context, Graph Neural Networks are a promising solution due to their ability to learn from graph-structured data. Combined with Reinforcement Learning, they can be used as control approaches to determine remedial actions. This review analyzes how Graph Reinforcement Learning can improve representation learning and decision-making in power grid applications, particularly transmission and distribution grids. We analyze the reviewed approaches in terms of the graph structure, the Graph Neural Network architecture, and the Reinforcement Learning approach. Although Graph Reinforcement Learning has demonstrated adaptability to unpredictable events and noisy data, its current stage is primarily proof-of-concept, and it is not yet deployable to real-world applications. We highlight the open challenges and limitations for real-world applications..
Nivarthi, Chandana Priya ; Huang, Zhixin ; Gruhl, Christian ; Sick, Bernhard: TRACE: Time series representation learning with contrastive embeddings for anomaly detection in photovoltaic systems. In: Energy and AI vol. 23, Elsevier (2026), p. 100670
- [ Abstract ]
- [ URL ]
- [ DOI ]
- [ BibSonomy-Post ]
Reliable anomaly detection in photovoltaic (PV) inverters is critical for ensuring operational efficiency and reducing maintenance costs in renewable energy systems. We introduce TRACE (Time series Representation learning with Autoencoder-based Contrastive Embeddings), a self-supervised contrastive learning framework for multivariate time series anomaly detection in PV systems. TRACE employs a two-stage architecture: autoencoder-based representation learning with interchangeable backbones followed by contrastive training through a Siamese network. The framework generates semantically coherent augmentations by perturbing autoencoder reconstructions and applies three negative mining strategies to create challenging contrastive pairs. Comprehensive experiments on a real-world PV inverter dataset and two industrial benchmarks demonstrate TRACE’s superiority. Autoencoder-based augmentations deliver a 21.3% relative improvement in mean F1 (0.616 vs. 0.508) over traditional perturbation methods, with TransformerAE emerging as the optimal backbone architecture. While negative sampling strategies show dataset-specific advantages, their impact remains secondary to encoder capacity. TRACE with TransformerAE and reconstruction-error negatives consistently outperforms fourteen state-of-the-art time series anomaly detection methods, achieving highest F1 scores on all the three datasets while maintaining exceptional precision up to 0.99. Visualization analysis confirms TRACE’s capacity for early fault detection up to three days before failure and interpretable embedding separation. The framework addresses the fundamental challenge of label scarcity in industrial monitoring through self-supervised learning, providing a practical and transparent solution for predictive maintenance in PV systems and broader industrial applications.

2025[ to top ]

Landau, E. ; Schmidt, L.:Entwicklung und Erprobung eines Qualifizierungskonzepts zur Förderung digitaler Kompetenzen von Beschäftigten aus der Produktion.. In: Becker, M. ; Dreher, R. ; Frenz, M. ; Windelband, L. (eds.): Lern- und Arbeitsprozesse im Wandel: Transformation gewerblich-technischer Facharbeit und Berufsbildung, Berufsbildung, Arbeit und Innovation. Bielefeld : wbv, 2025, pp. 271–283
- [ BibSonomy-Post ]
Freise, Leonie Rebecca ; Ritz, Eva ; Bretschneider, Ulrich ; Rietsche, Roman ; Beitinger, Gunter ; Leimeister, Jan Marco: How Siemens Empowered Workforce Re- and Upskilling Through Digital Learning. In: MIS Quarterly Executive vol. 24 (2025), Nr. 3, p. Article 4
- [ Abstract ]
- [ URL ]
- [ DOI ]
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The accelerating digital transformation of manufacturing is enhancing automation and production efficiency while requiring employees to develop new skills to meet evolving demands. This case study examines how Siemens embedded a human-centric, bottom-up approach to empower employee re- and upskilling through innovative digital learning. Aligned with Siemens’s actions, we present a four-phase model on leveraging information systems to address skill gaps, enhance adaptability and tackle re- and upskilling challenges. We also provide five recommendations to help organizations foster lifelong learning in dynamic manufacturing environments.
Freise, Leonie Rebecca ; Bruhin, Olivia ; Ritz, Eva ; Li, Mahei Manhai ; Leimeister, Jan Marco:Code and Craft: How Generative AI Tools Facilitate Job Crafting in Software Development.. In: 58th Hawaii International Conference on System Sciences (HICSS). Hawaii, USA, 2025
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The rapid evolution of the software development industry challenges developers to manage their diverse tasks effectively. Traditional assistant tools in software development often fall short of supporting developers efficiently. This paper explores how generative artificial intelligence (GAI) tools, such as Github Copilot or ChatGPT, facilitate job crafting—a process where employees reshape their jobs to meet evolving demands. By integrating GAI tools into workflows, software developers can focus more on creative problem-solving, enhancing job satisfaction, and fostering a more innovative work environment. This study investigates how GAI tools influence task, cognitive, and relational job crafting behaviors among software developers, examining its implications for professional growth and adaptability within the industry. The paper provides insights into the transformative impacts of GAI tools on software development job crafting practices, emphasizing their role in enabling developers to redefine their job functions.
Heinrich, René ; Rauch, Lukas ; Sick, Bernhard ; Scholz, Christoph: AudioProtoPNet: An interpretable deep learning model for bird sound classification. In: Ecological Informatics vol. 87, Elsevier (2025), p. 103081
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Deep learning models have significantly advanced acoustic bird monitoring by recognizing numerous bird species based on their vocalizations. However, traditional deep learning models are black boxes that provide no insight into their underlying computations, limiting their usefulness to ornithologists and machine learning engineers. Explainable models could facilitate debugging, knowledge discovery, trust, and interdisciplinary collaboration. We introduce AudioProtoPNet, an adaptation of the Prototypical Part Network (ProtoPNet) for multi-label bird sound classification. It is inherently interpretable, leveraging a ConvNeXt backbone to extract embeddings and a prototype learning classifier trained on these embeddings. The classifier learns prototypical patterns of each bird species’ vocalizations from spectrograms of instances in the training data. During inference, recordings are classified by comparing them to learned prototypes in the embedding space, providing explanations for the model’s decisions and insights into the most informative embeddings of each bird species. The model was trained on the BirdSet training dataset, which consists of 9734 bird species and over 6800 h of recordings. Its performance was evaluated on the seven BirdSet test datasets, covering different geographical regions. AudioProtoPNet outperformed the state-of-the-art bird sound classification model Perch, which is superior to the more popular BirdNet, achieving an average AUROC of 0.90 and a cmAP of 0.42, with relative improvements of 7.1% and 16.7% over Perch, respectively. These results demonstrate that even for the challenging task of multi-label bird sound classification, it is possible to develop powerful yet interpretable deep learning models that provide valuable insights for professionals in ornithology and machine learning.
Beckers, L. ; Wehr, F. ; Helmke, j. T. ; Schindler, S. ; Schmidt, L. ; Hornung, G.:Empirische Evaluation von personalisierten Fahrgastinformationen auf einem Smart Public Display mit Fokus auf Anmeldeverfahren und Datenschutzbedenken.. In: Gesellschaft für Arbeitswissenschaft e. V. (ed.): Arbeit 5.0: Menschzentrierte Innovationen für die Zukunft der Arbeit: 71. Kongress der Gesellschaft für Arbeitswissenschaft (Aachen 2025). Sankt Augustin : GfA-Press, 2025, pp. 450–455
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Unter Berücksichtigung von rechtlichen Aspekten werden in diesem Beitrag Ergebnisse zu Datenschutzbedenken bezüglich der Nutzung personalisierter Fahrgastinformationen des öffentlichen Personennahverkehrs auf einem Smart Public Display aus zwei Laborstudien (n = 60) verglichen, in denen verschiedene Anmeldeverfahren und Abstände einer umstehenden Person berücksichtigt wurden. Signifikante Unterschiede deuten darauf hin, dass bei Anmeldung via Gesichtserkennung vermehrt Datenschutzbedenken im Gegensatz zur Anmeldung via RFID-fähiger Karte vorliegen. Es zeigen sich keine signifikanten Unterschiede aufgrund des Abstands einer umstehenden Person. Unter ergänzender Betrachtung der Technologieakzeptanz scheint die Karte das geeignetere Anmeldeverfahren zu sein.
Mitsakis, Nikolaos ; Reisacher, Marco ; Eichholz, Matthias ; Breiting, Yannic ; Albrecht, Harald ; Blenk, Andreas ; Hohlfeld, Oliver:Data Centers Manufacturing Steel: Rethinking Industrial Networks in the Age of IT.. In: HotNets : ACM, 2025, pp. 85–95
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Bruhin, Olivia ; Bumann, Luc ; Ebel, Philipp:AI-Powered Teams: How the Usage of Generative AI Tools Enhances Knowledge Transfer and Knowledge Application in Knowledge-Intensive Teams.. In: 20th International Conference on Wirtschaftsinformatik (WI). Münster, Germany, 2025
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Generative Artificial Intelligence (GenAI) tools, including ChatGPT and GitHub Copilot, are revolutionizing software development by enhancing knowledge sharing and application. This study investigates the role of GenAI tools in software development teams, focusing on its impact on knowledge management processes and team performance. Through an empirical study with 80 software developers, we examine how GenAI usage influences the key knowledge management processes, knowledge transfer and application, and its subsequent effect on team performance. Our findings indicate that GenAI tools significantly enhance team dynamics, fostering efficient knowledge exchange and boosting productivity. In our study, we highlight the importance of integrating GenAI thoughtfully to maximize collaborative benefits, emphasizing its role as a catalyst for innovation and efficiency in knowledge-intensive environments.
Bruhin, Olivia ; Ebel, Philipp ; Bauer-Hänsel, Ingrid:Unlocking Business Value with Generative AI: Balancing Co-Creation and Co-Destruction in Knowledge Work.. In: Proceedings in the Thirty-Third European Conference on Information Systems (ECIS). Amman, Jordan, 2025
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This study investigates the dual impact of Generative AI tools on business value in knowledge work, focusing on value co-creation and co-destruction. Drawing from three case studies across diverse industries and over a year of GenAI integration, we analyzed qualitative insights from 15 industry experts. We contextualized our insights using the value co-creation and co-destruction framework and the value discipline lens. Our findings reveal GenAI’s nuanced role in enhancing operational efficiency, enabling innovative solutions through supporting complex problem-solving and more creative employee engagement, and strengthening customer intimacy through mechanisms such as depth or availability of the interaction. However, risks such as over-reliance on AI, quality concerns, and the erosion of critical human judgment skills complicate its adoption. By balancing these perspectives and explaining the value creation logic, this study provides a nuanced understanding of GenAI’s role in shaping business value, offering actionable recommendations for effective and sustainable integration.
Herde, Marek ; Lührs, Lukas ; Huseljic, Denis ; Sick, Bernhard: crowd-hpo: Realistic Hyperparameter Optimization and Benchmarking for Learning from Crowds with Noisy Labels. In: Transactions on Machine Learning Research (2025)
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Crowdworking is a cost-efficient solution for acquiring class labels. Since these labels are subject to noise, various approaches to learning from crowds have been proposed. Typically, these approaches are evaluated using default hyperparameter configurations, which often result in unfair and suboptimal performance, or using hyperparameter configurations tuned via a validation set with ground truth class labels, which represents an often unrealistic scenario. Moreover, both setups can yield different approach rankings, complicating study comparisons. Therefore, we introduce crowd-hpo as a framework for evaluating approaches to learning from crowds, together with criteria for selecting well-performing hyperparameter configurations using only noisy crowd-labeled validation data. Extensive experiments with neural networks demonstrate that these criteria select hyperparameter configurations that improve the learning from crowds approaches' generalization performances, measured on separate test sets with ground truth labels. Hence, incorporating such criteria into experimental studies is essential for enabling fairer and more realistic benchmarking.
Karst, Fabian ; Li, Mahei Manhai ; Reinhard, Philipp ; Leimeister, Jan Marco:Not Enough Data to Be Fair? Evaluating Fairness Implications of Data Scarcity Solutions.. In: Proceedings of the 58th Hawaii International Conference on System Sciences (HICSS). Hawaii, USA, 2025, pp. 6886–6895
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This study explores the implications of the use of data scarcity solutions on fairness in machine learning, specifically in consumer credit interest rate prediction. We develop a comprehensive taxonomy of Data Scarcity Solutions (DSS) by analyzing academic literature, data science competitions, and practical implementations. We identify six distinct DSS clusters: Data Extension, Pre-Training, Public Data Inclusion, Data Sharing, Federated Learning, and Active Learning. Our evaluation shows that most DSS enhance both performance and fairness, with minimal negative correlation between the two. Notably, approaches incorporating external or synthetic data significantly improve fairness. This research contributes to understanding DSS beyond algorithmic performance, providing a framework for evaluating their societal impact. Furthermore, it offers practitioners a taxonomy to select the right method for tackling data scarcity and addresses fairness concerns in real-world scenarios.
Lange, Kirsten ; Refflinghaus, Robert ; Hupe, Anna ; Bretschneider, Ulrich:Qualitätsmanagementgerechte Nutzung crowdbasierter Arbeit durch KMU.. In: Bracke, S. ; Heß, P. (eds.): Neue Methoden und Trends in der Qualitätswissenschaft. Wiesbaden : Springer Vieweg, Wiesbaden, 2025 — ISBN 978-3-658-45899-7, pp. 209–221
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Im Zuge der wachsenden Digitalisierung ist die Bedeutung von Crowdsourcing in den letzten Jahren deutlich gestiegen. Viele Unternehmen nutzen bereits heute die Beauftragung von (bezahlter) Arbeit über Internet-basierte Plattformen („Crowdworking-Plattformen“). Für Klein- und Mittelständische Unternehmen (KMU) bietet diese neue Form der Arbeitsorganisation allerdings noch erhebliches ungenutztes Potenzial, da die Ausgestaltung der Aufgaben, die Zusammenarbeit mit den Plattformen und der „Crowd“ KMU (noch) vor Herausforderungen stellt. Das vorliegende Papier beschreibt ein Konzept zur Anpassung des Qualitätsmanagements in KMU, um das Potenzial von Crowdworking besser zu nutzen. Es wird aufgezeigt, wie eine qualitätsmanagementgerechte Nutzung der Arbeit von crowdbasierten Mechanismen in KMUs erfolgen kann, um die Erfüllung der Kundenanforderungen weiterhin zu gewährleisten. Die verschiedenen Formen crowdbasierter Mechanismen werden diskutiert. Es werden Hindernisse für KMU bei der Einführung von Crowdsourcing und Strategien zu deren Überwindung aufgezeigt. Ein modulares Referenzprozessmodell für den qualitätsorientierten Einsatz von Crowdworking in KMU wird entwickelt. Darüber hinaus werden konkrete Handlungsempfehlungen zur Anpassung bzw. Ergänzung der Ausgestaltung des Qualitätsmanagements in KMU für den effizienten und effektiven Einsatz von crowdbasierten Mechanismen gegeben.
Meywirth, Sophia ; Janson, Andreas ; Söllner, Matthias:Personalized Coaching For Lifestyle Behavior Change through Large Language Models: A Qualitative Study.. In: Hawaii International Conference on System Sciences (HICSS). vol. 58. Waikoloa, Hawaii, USA, 2025, pp. 3379–3388
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This paper investigates the impact of large language model (LLM)-based coaching interventions on enhancing physical activity and nutritional habits, following motivational interviewing guidelines. By exploring user perceptions through qualitative research involving eight interviews, five key themes emerged: the tension between the need for authenticity and reservations about AI humanization, the desire for personalized coaching and autonomy, the necessity of simplifying daily tasks, the aspiration for self-development, and the need for perceived privacy and trust. The findings reveal that perceptions of LLM-based coaching are multifaceted and cannot be easily classified as purely beneficial or concerning; they vary based on the specific implementation. This complexity indicates that certain aspects can simultaneously present both benefits and risks. The paper discusses theoretical implications and offers practical recommendations to enhance the advantages and mitigate the risks associated with LLM-based coaching interventions.
Burkhardt, Marcus ; Kropf, Jonathan ; Ochs, Carsten ; Seitz, Tatjana:Introduction.. In: Burkhardt, M. ; Kropf, J. ; Ochs, C. ; Seitz, T. (eds.): Digital Culture & Society - Special Issue ‚Frictions: Conflicts, Controversies and Design Alternatives in Digital Valuation.‘. Bielefeld : transcript, 2025, pp. 5–15
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Burkhardt, Marcus ; Kropf, Jonathan ; Ochs, Carsten ; Seitz, Tatjana:Special Issue ‘Frictions: Conflicts, Controversies and Design Alternatives in Digital Valuation’. Digital Culture & Society (DCS). vol. 9. Bielefeld : transcript, 2025
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Meywirth, Sophia ; Janson, Andreas ; Söllner, Matthias:Designing for Trust: Integrating Self-referencing in Large Language Model-Based Health Coaching.. In: Chatterjee, S. ; vom Brocke, J. ; Anderson, R. (eds.): Local Solutions for Global Challenges. DESRIST 2025. Lecture Notes in Computer Science. vol. Vol 15703. Cham : Springer, 2025 — ISBN 978-3-031-93975-4, pp. 296–309
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This research applies the Design Science Research (DSR) methodology to investigate how self-referencing in Large Language Model (LLM)-based health coaching influences user trust and perceptions of anthropomorphism. We synthesized theory-driven design principles to guide the integration of self-referencing and demonstrated them in a vignette-based prototype. Through a single-factorial between-subjects experiment, analyzed using Partial Least Squares Structural Equation Modeling (PLS-SEM) and qualitative feedback, we identified a dual effect of self-referencing: while professional self-referencing enhances trust via increased anthropomorphism, overly personal references can directly undermine trust. Based on these findings, we refined our design principles to optimize trust-building in LLM-based coaching. Our contributions provide actionable design guidelines for creating more effective and trustworthy AI-driven health interventions, advancing the understanding of anthropomorphic design in digital coaching contexts.
Blohm, Ivo ; Miranda, Shaila ; Ho, Shuk Ying ; Leimeister, Jan Marco: Next-generation IS research methods – towards a better understanding of complex and dynamic phenomena ... and generative AI as the elephant in the room. In: Journal of Information Technology (JIT) vol. 40 (2025), Nr. 2, pp. 102–121
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Emerging phenomena like the increasing volume and variety of available data, machine learning techniques, and, most recently, Generative AI are reshaping our research practices, affording new research methods for testing and developing theory. In this editorial, we discuss our two major observations from running the ‘Next-generation IS Research Methods’ Special Issue: (1) the need for research methods that enhance our understanding of complex and dynamic phenomena and (2) Generative AI as (potential) productivity enhancer. We compile these observations into an organizing framework and discuss possibilities for applying Generative AI in the fields of qualitative, quantitative, and engaged research. We highlight challenges that might occur when applying Generative AI in research and shed light on the changing role of researchers in such settings of human–AI collaboration.
Hornung, G. ; Schindler, S.:Kapitel „Telekommunikation und digitale Dienste“.. In: Hornung, G. ; Schallbruch, M. (eds.): IT-Sicherheitsrecht. Praxishandbuch. Second.. Baden-Baden : Nomos Verlagsgesellschaft, 2025, pp. 617–670
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Khosrawi-Rad, Bijan ; Keller, Paul Felix ; Benner, Dennis ; Grogorick, Linda ; Borchers, Arne ; Janson, Andreas ; Leimeister, Jan Marco ; Robra-Bissantz, Susanne: Promoting students’ motivation in language education with gamified pedagogical conversational agents. In: Computers & Education vol. 238 (2025), Nr. December, 105374, pp. 1–24
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Pedagogical conversational agents (PCAs) like chatbots are a novel approach to technology-mediated language learning with artificial intelligence. They convey learning content interactively and accompany students in their education. However, many users find conversations with PCAs unmotivating. Gamification is a suitable solution to these motivational hurdles due to its playful nature. Given the difficulty of selecting the appropriate game elements and the scarcity of design recommendations for gamified PCAs, we propose the GNPL framework including a cohesive set of four design principles: goal-setting and reflection, novice-expert relationship, performance-related motivation, and learning story narration. In two design cycles, the article shows the application of the design principles in English learning – a domain commonly associated with motivational challenges – by implementing and evaluating a gamified PCA. The results show that the design principles significantly foster learners' motivation and that learners perceive a solid language learning experience, expressed by higher perceived value and social factors. They highlight the relevance of aligning the PCA's social role, the motivational impact of gamification, and the educational goals of the learning context. The design principles guide educators and developers in gamified PCA design. The paper contributes to the theory stream of PCAs by investigating learners' motivation enhancement when using PCAs. In addition, the paper provides new knowledge on meaningful gamification in an unexplored context and practical insights to solve the design challenges of selecting game elements in this context. Furthermore, it shows how language education can be supported by educational technology.
Böhmann, Tilo ; Roth, Angela ; Satzger, Gerhard ; Benz, Carina ; Beverungen, Daniel ; Boes, Andreas ; Breidbach, Christoph ; Gersch, Martin ; et al.: Continuous value shaping: A boundary concept for innovating service innovation approaches. In: Electronic Markets vol. 35 (2025), Nr. 27, p. 20
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Technological advancements and evolving value orientations reshape future value creation and pose new requirements for service innovation. While a variety of disciplines are developing new approaches to drive service innovation, this is primarily done in isolation and generates only fragmented solutions. Sociological theory has proposed “boundary objects” as an effective umbrella for communication and cooperation among communities. Therefore, we introduce continuous value shaping (CVS) as a boundary object describing service innovation approaches along five principles. We reflect on this concept through the different disciplinary lenses of researchers in service marketing, information systems, service engineering, sociology of work, and innovation management. These perspectives highlight how the CVS principles already connect to discourses within the individual disciplines. However, the CVS concept will not only provide an umbrella to embrace existing activities in different academic disciplines. It also assists to identify research themes that will benefit from uniting the power of these disciplines, and it can serve as an integrating framework to conceptualize complex service innovation approaches. Thus, the CVS concept should guide both researchers and practitioners to develop and implement novel innovation and transformation efforts—in and across organizations.
Hornung, G. ; Schallbruch, M.:Kapitel „Einführung“.. In: Hornung, G. ; Schallbruch, M. (eds.): IT-Sicherheitsrecht. Praxishandbuch. Second.. Baden-Baden : Nomos Verlagsgesellschaft, 2025, pp. 29–41
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Hornung, G. ; Schallbruch, M. (eds.):IT-Sicherheitsrecht. Praxishandbuch. Second.. Baden-Baden : Nomos Verlagsgesellschaft, 2025
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Lackner, Konstantin ; Uhlmann, Markus ; Horn, Viktoria:Exploring Democracy-Friendly News Navigation.. In: Iglesias Keller, C. ; Ohme, J. ; Buchner, M. (eds.): Proceedings of the Weizenbaum Conference 2025: Empowering People in Online Spaces: Democracy and Well-Being in Digital Societies : Weizenbaum Institute, 2025, pp. 155–159
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Lachi, Veronica ; Moallemy-Oureh, Alice ; Roth, Andreas ; Welke, Pascal: Expressive Pooling for Graph Neural Networks. In: Transactions on Machine Learning Research (2025)
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Considerable efforts have been dedicated to exploring methods that enhance the expressiveness of graph neural networks. Current endeavors primarily focus on modifying the message-passing process to overcome limitations imposed by the Weisfeiler-Leman test, often at the expense of increasing computational cost. In practical applications, message-passing layers are interleaved with pooling layers for graph-level tasks, enabling the learning of increasingly abstract and coarser representations of input graphs. In this work, we formally prove two directions that allow pooling methods to increase the expressive power of a graph neural network while keeping the message-passing method unchanged. We systemically assign eight frequently used pooling operators to our theoretical conditions for increasing expressivity and introduce a novel pooling method XP, short for eXpressive Pooling, as an additional simple method that satisfies our theoretical conditions. Experiments conducted on the Brec dataset confirm that those pooling methods that satisfy our conditions empirically increase the expressivity of graph neural networks.
Körner, Anita ; Tolzin, Antonia ; Janson, Andreas ; Leimeister, Jan Marco ; Rummer, Ralf: Common ground improves learning with conversational agents. In: Behaviour & Information Technology (2025)
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Although conversational agents are successfully applied in teaching, it is largely unclear which communication principles should be employed to optimise learning. We examine the influence of common ground (i.e. shared knowledge on which to build during conversation) on learning. In an in-class experiment, students studied with one of two pedagogical conversational agents. The control version provided information without emphasising grounding, whereas the common ground version emphasised grounding, for example, by encouraging students to monitor and repair common ground. After the learning unit, students evaluated their learning experience and the pedagogical conversational agent, after which they were tested on the studied material. Students in the common ground (vs. the control) condition performed better in a post-study knowledge test and engaged longer with the pedagogical conversational agent. Thus, the common ground emphasis facilitated learning with a conversational agent, indicating that grounding principles should be incorporated when designing conversational agents.
Burkhardt, Marcus ; Kropf, Jonathan ; Ochs, Carsten ; Seitz, Tatjana:Digital Culture & Society (DCS), Vol. 9, Issue 2/2023 - Special Issue ,Frictions: Conflicts, Controversies and Design Alternatives in Digital Valuation’. Bielefeld : transcript, 2025 — ISBN 978-3-8376-6358-7
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Ochs, Carsten:The Private Sphere, Privacy, and Digitization.. In: Friese, H. ; Nolden, M. (eds.): Handbuch Soziale Praktiken und Digitale Alltagswelten. Wiesbaden : Springer, 2025
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Funk, J.:Einsatzmöglichkeiten niedrigschwelliger 3D-360°- und Augmented-Reality-Anwendungen zur Wissensvermittlung im Handwerk, Schriftenreihe Mensch-Maschine-Systemtechnik. vol. 5. Kassel : Kassel University Press, 2025
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Die Digitalisierung der Arbeitswelt bietet auch dem Mittelstand eine Vielzahl an innovativen Chancen und Wettbewerbsvorteilen, erfordert andererseits aber auch eine Qualifizierung der Mitarbeiter in diesem Bereich, damit Betriebe von den Vorteilen der Digitalisierung profitieren können. Eine Branche, die über besonderes Weiterbildungspotential verfügt, ist das Handwerk. Auf Basis von Virtual- und Augmented-Reality-(VR-/AR-)Technologien können für den Einsatz im Bildungssektor interessante neue Anwendungen realisiert werden. Vorteile dieser Anwendungen liegen bspw. in einer besseren Lernleistung und einer höheren Motivation der Lernenden. Aufgrund der flexiblen Einsatzmöglichkeiten und dem damit verbundenen hohen Potential werden VR-/AR-Anwendungen in der Bildung weiter an Bedeutung gewinnen. Im Rahmen dieser Arbeit wurden bereits vorhandene und zukünftige Möglichkeiten zur Wissensvermittlung im Handwerk untersucht. Digitale Lernplattformen sind weit verbreitet und ermöglichen schon jetzt ein flexibleres Lernen, bspw. durch asynchronen und dezentralen Zugriff auf Inhalte. Autorenwerkzeuge unterstützen Dozenten bei der Erstellung von hochwertigen Multi-Media-Inhalten. Potentiale neuer Technologien, wie 3D-360°- und AR-Anwendungen, können zu einem besseren Lernerlebnis beitragen, werden aber bisher kaum eingesetzt. Für diese Arbeit wurden niedrigschwellige 3D-360°- und AR-Anwendungen entwickelt, die sowohl einen breiten Einsatz durch günstige Hardware als auch eine leichte Inhaltserstellung ohne vertiefte Programmierkenntnisse ermöglichen. Zu Beginn wurden verfügbare Lernplattformen und Autorenwerkzeuge recherchiert, und es wurde exemplarisch der Einsatz einer ausgewählten Plattform für das Handwerk evaluiert. Aufbauend wurden die Möglichkeiten von 3D-360°- und AR-Anwendungen anhand von je zwei Forschungsfragen betrachtet. Zu jeder dieser Forschungsfragen wurde eine empirische Studie durchgeführt. Dabei wurde je eine Studie unter realen Bedingungen mit einer Stichprobe entsprechend der geplanten Zielgruppe durchgeführt. Die Ergebnisse der Arbeit zeigen Potentiale und mögliche Anwendungsmöglichkeiten von 3D-360°- und AR-Anwendungen auf. Die günstige und meist vorhandene Hardware, wie verwendete Smartphones, in Kombination mit leicht zu erstellenden Inhalten unterstützen hierbei eine breite Anwendung im Handwerk.
Mueller, Leon ; Bruhin, Olivia:Developer Resistance to Generative AI Adoption: Identifying Barriers in Software Development.. In: eLibrary, A. (ed.): International Conference of Information Systems (ICIS). vol. Proceedings. Nashville, Tennessee : Association of Information Systems, 2025
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Actual usage of GenAI tools appears to fall behind expectations within organizations. Prior studies emphasize enablers of GenAI adoption but overlook factors that inhibit adoption. Hence, innovation resistance theory (IRT) is applied to decompose inhibitors into distinct resistance barriers. Specifically, we examine why software developers resist adoption of GenAI despite its promising productivity benefits through 15 semi-structured interviews. We further refine our analysis by considering task complexity and developer experience. Our results reveal that developers embrace GenAI for medium-complex tasks yet often reject it for both low- and high‐complexity tasks. While this pattern holds for juniors and seniors alike, the underlying reasons for their resistance differ by experience level. By highlighting how the open-ended nature of GenAI models increasingly complicates adoption, our study advances theoretical understanding of resistance to GenAI. Practically, we recommend organizations to identify measures that support employees navigating GenAI in augmenting tasks of mid-level complexity.
Bläsing, Lisa Marie ; Draude, Claude: Designing Access?! Critical Reflections on Gender-specific Educational Initiatives in Computing, Gesellschaft für Informatik e.V. (2025)
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Participatory approaches in human-computer interaction traditionally center around the co-creation of digital systems and on the empowerment of lay users. This position paper sets a different focus and reframes participation as a means of access to design itself. Hence, it is not about designing technologies, but about reflecting on how to create conditions under which marginalized groups — specifically young women — can access computer science education. The paper is motivated by a current research project that seeks to increase young women's interest in studying computer science (CS). Situated within the broader goal of diversifying the field of computing, the research project interrogates how digital fabrication and didactic reconstruction approaches to CS education could support increased representation of women in CS study programs. What we present here is not so much about the didactical approaches as such but a reflection on the broader setup of the project through the lens of intersectional gender research and the question of participation.
Göldi, Andreas ; Rietsche, Roman ; Ungar, Lyle:Efficient Management of LLM-Based Coaching Agents’ Reasoning While Maintaining Interaction Quality and Speed.. In: Conference on Human Factors in Computing Systems (CHI). Yokohama, Japan, 2025
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LLM-based agents improve upon standalone LLMs, which are optimized for immediate intent-satisfaction, by allowing the pursuit of more extended objectives, such as helping users over the long term. To do so, LLM-based agents need to reason before responding. For complex tasks like personalized coaching, this reasoning can be in- formed by adding relevant information at key moments, shifting it in the desired direction. However, the pursuit of objectives beyond interaction quality may compromise this very quality. Moreover, as the depth and informativeness of reasoning increase, so do the number of tokens required, leading to higher latency and cost. This study investigates how an LLM-based coaching agent can adjust its reasoning depth using a discrepancy mechanism that signals how much reasoning effort to allocate based on how well the objective is being met. Our discrepancy-based mechanism constrains reasoning to better align with alternative objectives, reducing cost roughly tenfold while minimally impacting interaction quality.
Hubert, Andreas ; Guo, Chenxi ; Doll, Konrad ; Sick, Bernhard:Improving Fast 6D Pose Estimation with Adaptive Model Fusion.. In: International Conference on Machine Learning and Intelligent Systems Engineering (MLISE) : IEEE, 2025, pp. 58–63
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Object tracking in manual assembly cells presents unique challenges due to the wide variation in motion speeds, ranging from slow, precise movements to rapid changes of direction. Traditional tracking models face a fundamental trade-off: models specialized for slow motion achieve high accuracy at low speeds but fail at higher velocities, while fast-motion models track rapid movements effectively but lose precision for slow moving objects. To address this limitation, we propose an Adaptive Fusion Tracker (AFT) approach that combines a Slow Motion Tracker (SMT) and a Fast Motion Tracker (FMT) to improve tracking robustness across diverse motion ranges. Our experimental evaluation demonstrates that AFT configurations, fusing SMT and FMT results, enhance performance beyond the individual models' operational limits. Among them, AFT with averages the results by weight consistently achieves the highest tracking accuracy, doubling the performance for certain tracking motion speeds, while a state-based AFT offers a computationally efficient alternative. These findings suggest that adaptive fusion extends the effective operational range of tracking models, making them more reliable for real-world applications.
Gutekunst, Klara M. ; Dürrschnabel, Dominik ; Hirth, Johannes ; Stumme, Gerd:Conceptual Topic Aggregation.. In: Cellier, P. ; Ganter, B. ; Missaoui, R. (eds.): Conceptual Knowledge Structures. Cham : Springer Nature Switzerland, 2025 — ISBN 978-3-032-03364-2, pp. 3–18
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The vast growth of data has rendered traditional manual inspection infeasible, necessitating the adoption of computational methods for efficient data exploration. Topic modeling has emerged as a powerful tool for analyzing large-scale textual datasets, enabling the extraction of latent semantic structures. However, existing methods for topic modeling often struggle to provide interpretable representations that facilitate deeper insights into data structure and content.
Grauer, Teresa ; Li, Mahei:Are Narratives a success factor for Digital Transformation? A Qualitative Study on the Importance of Narratives.. In: 20th International Conference on Wirtschaftsinformatik (WI). Münster, Germany : AIS eLibrary, 2025
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Organizations seek to drive digital transformation. Initiatives fail, often due to human-related factors such as stakeholder resistance. Despite the role of human dynamics in digital transformation, research has yet to fully explore effective strategies for mitigating these challenges. Narratives represent a promising yet underexamined tool for managing human-related risks in digital transformation. Many organizations employ narratives, either implicitly or explicitly, to shape their transformation efforts. However, both scholars and practitioners lack understanding of how narratives influence transformation outcomes. This inductive case study examines how organizations leverage narratives to enhance digital transformation. We conducted interviews to analyze their use of narratives. Our findings reveal key functions and characteristics: (1) narratives serve a transformative, motivational function, (2) narratives help overcome resistance and engage people, (3) boundary conditions are relevant for successful narratives, (4) overarching narratives define digital transformation initiatives. By strategically shaping narratives, organizations can navigate human-related barriers and improve transformation success.
Grau, Marc ; Reinhard, Philipp ; Bauer-Hänsel, Ingrid ; Blohm, Ivo:Rethinking AI Design Practices: A Reference Architecture for Generative AI Systems.. In: European Conference on Information Systems (ECIS). Amman, Jordan : Aisel, 2025
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Generative AI (GenAI) holds the potential to transform various facets of society. While research and practice increasingly explore its diverse use cases and assess its impact, many companies continue to face significant challenges in designing and developing advanced GenAI systems, hindering their ability to derive value from these technologies. To address these challenges and offer guidance on emerging GenAI development practices, we propose a reference architecture that highlights key design decisions. Using a design science research approach, we developed the reference architecture informed by consortium workshops, literature reviews, and expert interviews. The reference architecture is grounded in eight key design requirements and serves as a strategic guide to streamline system design and assist organisational decision-making and communication. Additionally, the architecture contributes to the academic discourse by offering a structured framework for future research on the design peculiarities of GenAI systems, helping bridge the gap between practical implementations and theoretical insights.
Schadl, Adrian ; Mahei Manhai, Li ; Janson, Andreas ; Schäfer, Björn:AI-Enabled Platforms: Exploring Strategic Value Creation through a Strategy-as-Practice Lens.. In: Academy of Management Meeting (AOM). Copenhagen, Denmark, 2025
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Platform organizations are pioneering the development and adoption of artificial intelligence (AI), yet AI poses substantial challenges by disrupting organizational capabilities and threatening competitive advantages. AI reshapes processes and products, influences ecosystem coordination, and foster inter-departmental collaboration. Recognizing its potential, businesses invest heavily in AI, but numerous applications fail to deliver significant value. Surprisingly, even though AI’s influence spans internal and external functions and capabilities, most studies focus on specific contexts and rarely examine the actual business outcomes of AI applications. This paper studies the empirical impact of AI on platform organizations’ value creation. Thus, we adopt a multi-study approach grounded in a Strategy-as-Practice perspective, investigating how AI integration transforms strategic practices. Study 1 draws on currently 45 interviews with platform organizations and develops a holistic framework that classifies AI applications according to their internal and external value creation and focus, enabling us to understand AI’s organizational impact on platform value-creation mechanisms. Study 2 will employ an event-study method and aims to assess the shareholder value impacts of these applications, empirically demonstrating AI’s business value. Preliminary insights from Study 1 indicate that platforms use AI to develop innovation platforms, introduce novel services, optimize ecosystem orchestration, and foster co-creation. By offering a holistic perspective on AI applications and empirically linking practices to shareholder value, this research contributes to both theory and practice. It clarifies how AI can function as a strategic capability within platform organizations, extending our understanding of micro-level strategic practices while guiding managers seeking to realize AI’s potential.
Liehr, Alexander ; Dingel, Kristina ; Kottke, Daniel ; Degener, Sebastian ; Meier, David ; Sick, Bernhard ; Niendorf, Thomas: Data selection strategies for minimizing measurement time in materials characterization. In: Scientific Reports vol. 15, Springer Nature (2025), Nr. 1, p. 15182
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Every new material needs to be assessed and qualified for an envisaged application. A steadily increasing number of new alloys, designed to address challenges in terms of reliability and sustainability, poses significant demands on well-known analysis methods in terms of their efficiency, e.g., in X-ray diffraction analysis. Particularly in laboratory measurements, where the intensities in diffraction experiments tend to be low, a possibility to adapt the exposure time to the prevailing boundary conditions, i.e., the investigated microstructure, is seen to be a very effective approach. The counting time is decisive for, e.g., complex texture, phase, and residual stress measurements. Traditionally, more measurement points and, thus, longer data collection times lead to more accurate information. Here, too short counting times result in poor signal-to-background ratios and dominant signal noise, respectively, rendering subsequent evaluation more difficult or even impossible. Then, it is necessary to repeat experiments with adjusted, usually significantly longer counting time. To prevent redundant measurements, it is state-of-the-art to always consider the entire measurement range, regardless of whether the investigated points are relevant and contribute to the subsequent materials characterization, respectively. Obviously, this kind of approach is extremely time-consuming and, eventually, not efficient. The present study highlights that specific selection strategies, taking into account the prevailing microstructure of the alloy in focus, can decrease counting times in X-ray energy dispersive diffraction experiments without any detrimental effect on data quality for the subsequent analysis. All relevant data, including the code, are carefully assessed and will be the basis for a widely adapted strategy enabling efficient measurements not only in lab environments but also in large-scale facilities.
Hupe, Anna ; Bretschneider, Ulrich:Towards Safer Incentive-Based Crowdfunding: A Blockchain-based Approach.. In: International Conference on Information Systems (ICIS). Nashville, USA, 2025
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Crowdfunding has become an increasingly important funding mechanism, with transaction volumes growing steadily in recent years. However, significant information asymmetries between backers and project initiators challenge its sustainable development, particularly in incentive-based crowdfunding. Backers lack critical insights into initiators’ motives, capabilities, and project specifics due to the anonymous nature of these interactions. Using principal-agent theory, we analyze existing problems between backers and project initiators and highlight the information asymmetries between them. These asymmetries result in backers suffering from adverse selection and moral hazard, threatening campaign success. To address these problems, we propose integrating blockchain technology into crowdfunding campaigns. Our results show that blockchain contributes to increased transparency, security, traceability, and decentralization. Based on a literature review and expert interviews, we examine the technological potential to reduce information asymmetries, strengthen trust between backers and project initiators, and contribute to improved governance mechanisms and innovative ways of implementing crowdfunding more securely.
Hupe, Anna ; Bretschneider, Ulrich:Design Pattern Development for Online Labor Platforms: Addressing Certificate Forgery Through Blockchain-Based Solutions.. In: International Conference of Information Systems (ICIS). Nashville, USA, 2025
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Outsourcing tasks via online labor platforms (OLPs) has become a widely adopted strategy for companies to delegate activities beyond their core competencies to external gig workers, enabling rapid and cost-effective task execution. Increasing task complexity and required expertise lead to higher payment, incentivizing gig workers to exaggerate their qualifications and engage in certificate forgery. Such misrepresentations often result in inadequate task outcomes. Existing approaches focus on detecting forgeries through governance mechanisms; they address results rather than underlying causes and cannot provide complete security. Our research, in contrast, addresses the causes of certificate forgery on OLPs. Following a design science research approach and based on a literature review and interviews, we identify challenges, derive requirements and design pattern elements, and propose a blockchain-based design pattern to mitigate credential fraud. Our research contributes to reducing information asymmetries between gig workers and organizations, thereby enhancing task quality, improving trust, and commitment on OLPs.
Mussi, Marco ; Metelli, Alberto Maria ; Restelli, Marcello ; Losapio, Gianvito ; Bessa, Ricardo J. ; Boos, Daniel ; Borst, Clark ; Leto, Giulia ; et al.: Human-AI interaction in safety-critical network infrastructures. In: iScience vol. 28, Elsevier (2025), Nr. 9, p. 113400
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Artificial Intelligence (AI) is transforming every aspect of modern society. It demonstrates a high potential to contribute to more flexible operations of safety-critical network infrastructures under deep transformation to tackle global challenges, such as climate change, energy transition, efficiency, and digital transformation, including increasing infrastructure resilience to natural and human-made hazards. The widespread adoption of AI creates the conditions for a new and inevitable interaction between humans and AI-based decision systems. In such a scenario, creating an ecosystem in which humans and AI interact healthily, where the roles and positions of both actors are well-defined, is a critical challenge for research and industry in the coming years. This perspective article outlines the challenges and requirements for effective human-AI interaction by taking an interdisciplinary point of view that merges computer science, decision-making sciences, psychological constructs, and industrial practices. The work focuses on three emblematic safety-critical scenarios from two different domains: energy (power grids) and mobility (railway networks and air traffic management)
Neshaei, Seyed Parsa ; Tolzin, Antonia ; Berkle, Yvonne ; Leuchter, Miriam ; Leimeister, Jan Marco ; Janson, Andreas ; Wambsganss, Thiemo:Leveraging Learner Errors in Digital Argumentation Learning: How ALure Helps Students Learn from their Mistakes and Write Better Arguments.. In: Proceedings of the ACM on Human-Computer Interaction, Computer-Supported Cooperative Work and Social Computing (CSCW). vol. 9 : Association for Computing Machinery, 2025, pp. 1–32
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Providing argumentation feedback is considered helpful for students preparing to work in collaborative environments, helping them with writing higher-quality argumentative texts. Domain-independent natural language processing (NLP) methods, such as generative models, can utilize learner errors and fallacies in argumentation learning to help students write better argumentative texts. To test this, we collect design requirements, and then design and implement two different versions of our system called ALure to improve the students' argumentation skills. We test how ALure helps students learn argumentation in a university lecture with 305 students and compare the learning gains of the two versions of ALure with a control group using video tutoring. We find and discuss the differences of learning gains in argument structure and fallacies in both groups after using ALure, as well as the control group. Our results shed light on the applicability of computer-supported systems using recent advances in NLP to help students in learning argumentation as a necessary skill for collaborative working settings.
Oeste-Reiß, Sarah ; Kisacik, Yusuf ; Leimeister, Jan Marco:Digitale Bildung in hessischen Schulen: Ein Prozess zur Distribution von Forschungsergebnissen als Digitale Lernmaterialien. Projektergebnisse des ZEVEDI Ad hoc-Vorhabens.. In: . vol. ITeG Technical Reports. Kassel, Deutschland : Kassel University Press (kup), 2025
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Die Handlungsbroschüre beschreibt die Studienergebnisse des ZEVEDI Ad hoc- Vorhabens „Digitale Bildung in hessischen Schulen: Distribution von Forschungsergebnissen als Digitale Lernmaterialien“. Das Ziel der Studie bestand in der Analyse, wie die Distribution von neuartigem Wissen zu Digitalisierungsthemen als digitale Unterrichtsmaterialien in Schulen gefördert werden kann.
Geminn, C. ; Johannes, P. (eds.):Europäisches Datenrecht : Nomos, 2025. — Praxishandbuch
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Huseljic, Denis ; Herde, Marek ; Rauch, Lukas ; Hahn, Paul ; Huang, Zhixin ; Kottke, Daniel ; Vogt, Stephan ; Sick, Bernhard:Efficient Bayesian Updates for Deep Active Learning via Laplace Approximations.. In: European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases (ECMLPKDD) : Springer, 2025, pp. 20–35
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Deep active learning (AL) selects batches of instances for annotation to avoid retraining deep neural networks (DNNs) after each new label. Employing a naive top-b selection can result in a batch of redundant (similar) instances. To address this, various AL strategies employ clustering techniques that ensure diversity within a batch. We approach this issue by substituting the costly retraining with an efficient Bayesian update. Our proposed update represents a second-order optimization step using the Gaussian posterior from a last-layer Laplace approximation. Thereby, we achieve low computational complexity by computing the inverse Hessian in closed form. We demonstrate that in typical AL settings, our update closely approximates retraining while being considerably faster. Leveraging our update, we introduce a new framework for batch selection through sequential construction, updating the DNN after each label acquisition. Furthermore, we incorporate our update into a look-ahead selection strategy as a feasible upper baseline approximating optimal batch selection. Our results highlight the potential of efficient updates to advance deep AL research.
Bartelheimer, Christian ; Heinz, Daniel ; Hönigsberg, Sarah ; Siemon, Dominik ; Li, Mahei Manhai ; Strohmann, Timo ; Poeppelbuss, Jens ; Peters, Christoph: Conceptualizing hybrid intelligent service ecosystems. In: Electronic Markets (EM) vol. 35 (2025), Nr. 63, p. 27
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With the proliferation of artifcial intelligence (AI) technologies, the collaboration of human and AI actors in value cocreation processes permeates various application domains. In this conceptual paper, we integrate concepts from human-AI collaboration and service research and present a conceptual framework for hybrid intelligent service ecosystems (HISE). The framework extends the existing conceptualizations of service ecosystems as put forward by the service-dominant logic (S-D logic) by emphasizing how actors deliberately confgure human and artifcial agencies to co-create value via hybrid intelligent service exchange and how this impacts ecosystem formation and evolution. Our conceptualization highlights that value co-creation in HISE is guided and facilitated by shared resources and institutional arrangements, which difer from previous service ecosystems through the emergence of hybrid agency. We demonstrate the applicability of our framework with fve illustrative HISE scenarios and provide fve theoretical propositions. Our fndings extend existing knowledge by theorizing on how to incorporate hybrid intelligence into value co-creation processes. Thereby, we provide a foundation for future interdisciplinary research on human-AI collaboration at the intersection of information systems, human–computer interaction, and service research with S-D logic as a unifying theoretical lens.
Leyli abadi, Milad ; Bessa, Ricardo J. ; Viebahn, Jan ; Boos, Daniel ; Borst, Clark ; Castagna, Alberto ; Chavarriaga, Ricardo ; Hassouna, Mohamed ; et al.:A Conceptual Framework for AI-based Decision Systems in Critical Infrastructures.. In: IEEE International Conference on Systems, Man and Cybernetics (SMC) : IEEE, 2025. — (accepted)
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The interaction between humans and AI in safety-critical systems presents a unique set of challenges that remain partially addressed by existing frameworks. These challenges stem from the complex interplay of requirements for transparency, trust, and explainability, coupled with the necessity for robust and safe decision-making. A framework that holistically integrates human and AI capabilities while addressing these concerns is notably required, bridging the critical gaps in designing, deploying, and maintaining safe and effective systems. This paper proposes a holistic conceptual framework for critical infrastructures by adopting an interdisciplinary approach. It integrates traditionally distinct fields such as mathematics, decision theory, computer science, philosophy, psychology, and cognitive engineering and draws on specialized engineering domains, particularly energy, mobility, and aeronautics. Its flexibility is further demonstrated through a case study on power grid management.
Holzhueter, Clara ; Lytaev, Pawel ; Dipp, Marcel ; Hassouna, Mohamed ; Brendlinger, Kurt ; Viebahn, Jan ; Gegelman, Wiktor ; Merz, Christian:Graph Neural Networks for Grid Control: Prospects in AI-assisted Transmission Grid Operation.. In: ETG Kongress 2025; Voller Energie – heute und morgen. : VDE, 2025, pp. 874–881
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Transmission grid congestion management and outage planning are critical tasks in modern grid operation due to the non-linear nature of power flows and the large-scale optimization challenges faced by operators. Traditionally, overloads are addressed through generator redispatch, a costly and therefore suboptimal measure. In the project "Graph Neural Networks for Grid Control" (GNN4GC), we investigate alternative strategies, focusing on topological remedial actions that could minimize or even completely eliminate redispatch costs. Topology optimization, a core aspect of this project, presents significant challenges due to its combinatorial nature, requiring extensive computational resources for power flow calculations. To address this, GNN4GC is split into three stages. In the first stage, we explore the use of Graph Neural Networks (GNNs) to accelerate these calculations and benchmark their performance against established tools like pandapower and a DC power flow solver developed by 50Hertz Transmission GmbH and TenneT TSO GmbH. In the second stage, we use Reinforcement Learning and other heuristics to select suitable topologies and solve the topology optimization problem. As a third stage, we test the respective agent on real-life grids to benchmark the methodology. The aim of the final stage is to build a recommender system that can be used in a control room in the future.
Ochs, Carsten:Local Digital Practices, Worldwide.. In: Friese, H. ; Nolden, M. (eds.): Handbuch Soziale Praktiken und Digitale Alltagswelten. Wiesbaden : Springer, 2025
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Gao, Shang ; Sick, Bernhard ; Götz-Hahn, Franz:Unify: Uncertainty incorporated Federated Learning for Object Detection.. In: International Conference on Architecture of Computing Systems (ARCS) : Springer, 2025, pp. 330–344
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Federated Learning (FL) has demonstrated promise for collaborative training on decentralized data while preserving privacy. However, applying FL to object detection remains challenging due to non-IID data distributions and domain shifts that can degrade performance with standard aggregation methods. To address these issues, we propose the Uncertainty Incorporated Federated Learning for Object Detection (Unify) framework, a novel FL framework that leverages Evidential Learning (EL) to estimate both epistemic and aleatoric uncertainties. By integrating these uncertainty estimates into the aggregation process, Unify down-weights unreliable client updates, leading to improved cross-domain generalization and enhanced stability. Built upon a lightweight YOLOX detector, our approach achieves detection performance that closely approaches centralized training while significantly outperforming conventional FedAvg under heterogeneous conditions. Evaluations on the KITTI and nuImages datasets demonstrate that Unify improves mean Average Precision (mAP) and yields uncertainties. The findings highlight the potential of uncertainty-incorporated FL in developing resilient, adaptive, and self-organizing computing systems.
Gao, Shang ; Huang, Zhixin ; Al-Falouji, Ghassan ; Sick, Bernhard ; Tomforde, Sven:Towards Cognitive Situational Awareness in Maritime Traffic Using Federated Evidential Learning.. In: IEEE Conference on Cognitive and Computational Aspects of Situation Management (CogSIMA) : IEEE, 2025, pp. 9–16
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The increasing complexity of maritime navigation and the shift towards (semi)autonomous systems necessitate enhanced situational awareness (SA) to ensure maritime safety. This transition introduces new requirements for situation mod- elling and SA, particularly in busy waterways. To address these challenges, we present the Federated Evidential Learning for Anomaly Detection of Ship Trajectories (FEAST) framework, which integrates Federated Learning and Evidential Learning to provide a privacy-preserving, collaborative, and uncertainty- aware approach to out-of-distribution (OOD) anomaly detection in maritime traffic. FEAST uses data from the Automatic Identification System from the Kiel region, Germany, which exhibits unique characteristics of dynamic and heterogeneous maritime activity due to its connection with the traffic-dense Kiel Canal. Our extensive evaluations demonstrate that FEAST improves OOD anomaly detection by leveraging epistemic and aleatoric uncertainty estimates, outperforming baseline methods such as Denoise AutoEncoders and Variational AutoEncoders. Consequently, FEAST forms a solution to reliable and inter- pretable maritime traffic anomaly detection, supporting enhanced SA in maritime operations.
Gao, Shang:Dynamic Multimodal Cyclist Behaviour Modelling: From Representation Insights to Federated Collaboration.. In: Tomforde, S. ; Krupitzer, C. (eds.): Organic Computing -- Doctoral Dissertation Colloquium 2025 : kassel university press, 2025. — (accepted)
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In the field of intelligent transportation systems, accurately modelling cyclist behaviour is crucial to enhancing traffic safety and efficiency, particularly as road environments are increasingly shared with automated vehicles. Modelling cyclist behaviour is intrinsically complex due to its dynamic, context-dependent nature, shaped by diverse environmental and individual factors. These complexities pose significant challenges for traditional centralized learning approaches, particularly regarding data privacy concerns and heterogeneity across distributed data sources. Federated learning, as an emerging framework, offers the potential to address these challenges by enabling collaborative model training without sharing raw data. However, in real-world traffic scenarios, federated learning must tackle the complexities of non-independent and identically distributed data and the need for real-time adaptability in dynamic traffic environments. This work explores an uncertainty-aware federated learning framework, incorporating multimodal data fusion, to support modelling cyclist behaviour in traffic environments. This research addresses key challenges in federated learning for cyclist behaviour modelling and explores potential solutions, offering both theoretical and practical insights for future applications in intelligent transportation sys- tems.
Schindler, S. ; Scholz, P.:Anhang 1 zu Art. 6 DS-GVO, §§ 4, 37 BDSG.. In: Simitis, S. ; Hornung, G. ; Spiecker gen. Döhmann, I. (eds.): Datenschutzrecht. DS-GVO/BDSG. 2. Auflage.. Baden-Baden : Nomos Verlagsgesellschaft, 2025
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Meyer, Nathalie Alysha ; Meier, Alexander:BLOCKCHAIN IN CONTINUING EDUCATION – TAXONOMY FOR A NEXT-GENERATION TEACHING PLATFORM.. In: European Conference on Information Systems (ECIS). vol. 2025. Amman, Jordan : AIS Electronic Library (AISeL), 2025
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The constantly growing educational technology market and rising demand for comprehensive, lifelong learning in rapidly digitizing environments, offer significant potential for implementing decentralized blockchain systems in the context of continuing education. However, the continuing education sector underutilizes the promised value. This paper develops a multi-layer taxonomy based on a systematic literature review and expert interviews, which contributes to systematically delineating possible augmentations of continuing education management using blockchain-based technology. Applications include fraud prevention, intellectual property protection, efficient and secure data exchange by tokenizing personal documents and developing interoperable, smart educational institutions using smart contracts and IoT. The taxonomy incorporates descriptive knowledge and prescriptive guidance to researchers in educational technology, implementers, and instructors in continuing education, as well as institutional decision-makers on the benefits of blockchain, such as decentralized governance, data security, immutability, and anonymity, leveraged throughout the phases of educational program development in an institutional or company-internal context.
Köhler, Dominik ; Hassouna, Mohamed ; Degtyar, Dmitry ; Krauß, Jonas ; Brendlicger, Kurt ; Scholz, Christoph:PPTopoGym: Towards an RL Environment for Topology Actions on Power Grids.. In: Workshop on Machine Learning for Sustainable Power Systems (ML4SPS 2025), ECML PKDD : Springer, 2025. — (accepted)
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Power grids are facing growing challenges, arising from the increasing share of renewable energy sources and highly variable loads, in- troducing significant variability into both power generation and demand. This variability can create transmission line bottlenecks, which in turn lead to overheating. Transmission system operators address this prob- lem by rerouting the power flow via topological control, which is more cost-effective than redispatch measures. While reinforcement learning has shown promise in optimizing such topology changes, existing reinforce- ment learning environments exhibit notable differences from real-world operations. To support research and bridge the gap to real-world ap- plications, we present PPTopoGym—a reinforcement learning environ- ment for evaluating the impact of topology actions on the power flow in pandapower-based grids. It allows for simulations with variable load and generation profiles, and supports direct computation of key grid security metrics, i.e., N−0 and N−1 security constraints for each time step. PP- TopoGym addresses key limitations of existing environments by enabling realistic grid modeling and the integration of real-world data. The code is publicly available.
Karst, Fabian Sven ; Li, Mahei Manhai ; Leimeister, Jan Marco: SynDEc: A Synthetic Data Ecosystem. In: Electronic Markets (EM) vol. 35 (2025)
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Given the critical role of data availability for growth and innovation in financial services, especially small and mid-sized banks lack the data volumes required to fully leverage AI advancements for enhancing fraud detection, operational efficiency, and risk management. With existing solutions facing challenges in scalability, inconsistent standards, and complex privacy regulations, we introduce a synthetic data sharing ecosystem (SynDEc) using generative AI. Employing design science research in collaboration with two banks, among them UnionBank of the Philippines, we developed and validated a synthetic data sharing ecosystem for financial institutions. The derived design principles highlight synthetic data setup, training configurations, and incentivization. Furthermore, our findings show that smaller banks benefit most from SynDEcs and our solution is viable even with limited participation. Thus, we advance data ecosystem design knowledge, show its viability for financial services, and offer practical guidance for privacy-resilient synthetic data sharing, laying groundwork for future applications of SynDEcs.
Meier, David ; Zeschke, Thomas ; Feuer-Forson, Peter ; Sick, Bernhard ; Viefhaus, Jens ; Hartmann, Gregor:Offset Finding of Beamline Parameters on the METRIXS Beamline at BESSY II Using Machine Learning.. In: Journal of Physics: Conference Series : IOP Publishing, 2025, p. 012130
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Beamline alignment is challenging as the beamline components must be set up ideally so that the rays follow the desired optical path. Automated methods using a digital twin allow for faster diagnostics and improved beam properties compared to manual tuning. We introduce an automated method of finding the offsets to improve this digital twin model. These offsets represent the unknown but constant differences between the beamline parameter positions as set up at the physical beamline and the corresponding parameter positions of its digital twin. Our method assumes the capability to execute precise relative movements with a known step size for these parameters, although the absolute position information is unknown. By combining the surrogate model with a global optimizer, we successfully determine offsets for 34 beamline parameters on a simulated METRIXS beamline at the BESSY II synchrotron radiation source in Berlin.
Alhamwy, Yasin ; Khoulani, Bashar ; Hohlfeld, Oliver:Crawling Alice Looking Glasses at IXPs to Quantify BGP Route Diversity.. In: SIGCOMM (Posters and Demos) : ACM, 2025 — ISBN 979-8-4007-2026-0, pp. 121–123
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Söllner, M. ; Arnold, T. ; Benlian, A. ; Bretschneider, U. ; Knight, C. ; Ohly, S.: ChatGPT and Beyond: Exploring the Responsible Use of Generative AI in the Workplace: An Interdisciplinary Perspective. In: Business & Information Systems Engineering. Wiesbaden, Springer Fachmedien (2025), pp. 1–15
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Currie, Wendy L ; Schlagwein, Daniel ; Leimeister, Jan Marco ; Willcocks, Leslie: Rethinking technology regulation in the age of AI risks. In: Journal of Information Technology (JIT) (2025), p. 10
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This paper argues that artificial intelligence exposes the shortcomings of traditional regulatory paradigms, challenging Easterbrook’s ‘Law of the Horse’ view that general legal principles suffice. AI’s opacity, autonomy, and systemic risks demand risk-informed, technology-specific governance. We identify the pacing problem, where innovation outstrips regulatory capacity, and propose a tripartite framework distinguishing functional, structural, and relational risks. Comparative analysis of EU, US, UK, and Chinese approaches highlights divergent logics of precaution, market oversight, hybrid flexibility, and state control. Effective governance requires embedding risk into policy design through adaptive, proportionate, and harmonised mechanisms, balancing innovation with accountability. The paper underscores the urgency of global coordination and calls for interdisciplinary IS research to inform anticipatory, participatory, and ethically grounded regulation.
Rauch, Lukas ; Heinrich, René ; Moummad, Ilyass ; Joly, Alexis ; Sick, Bernhard ; Scholz, Christoph: Can Masked Autoencoders Also Listen to Birds?. In: Transactions on Machine Learning Research (2025)
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Masked Autoencoders (MAEs) learn rich representations in audio classification through an efficient self-supervised reconstruction task. Yet, general-purpose models struggle in fine-grained audio domains such as bird sound classification, which demands distinguishing subtle inter-species differences under high intra-species variability. We show that bridging this domain gap requires full-pipeline adaptation beyond domain-specific pretraining data. Using BirdSet, a large-scale bioacoustic benchmark, we systematically adapt pretraining, fine-tuning, and frozen feature utilization. Our Bird-MAE sets new state-of-the-art results on BirdSet’s multi-label classification benchmark. Additionally, we introduce the parameter-efficient prototypical probing, which boosts the utility of frozen MAE features by achieving up to 37 mAP points over linear probes and narrowing the gap to fine-tuning in low-resource settings. Bird-MAE also exhibits strong few-shot generalization with prototypical probes on our newly established few-shot benchmark on BirdSet, underscoring the importance of tailored self-supervised learning pipelines for fine-grained audio domains.
Rauch, Lukas ; Schwinger, Raphael ; Wirth, Moritz ; Heinrich, René ; Huselji, Denis ; Herde, Marek ; Lange, Jonas ; Kahl, Stefan ; et al.:BirdSet: A Large-Scale Dataset for Audio Classification in Avian Bioacoustics.. In: International Conference on Learning Representations (ICLR), 2025. — (accepted)
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Deep learning (DL) has greatly advanced audio classification, yet the field is limited by the scarcity of large-scale benchmark datasets that have propelled progress in other domains. While AudioSet is a pivotal step to bridge this gap as a universal-domain dataset, its restricted accessibility and limited range of evaluation use cases challenge its role as the sole resource. Therefore, we introduce BirdSet, a large-scale benchmark dataset for audio classification focusing on avian bioacoustics. BirdSet surpasses AudioSet with over 6,800 recording hours (\\\\uparrow\\\\!17\\\\%) from nearly 10,000 classes (\\\\uparrow\\\\!18\\\\times) for training and more than 400 hours (\\\\uparrow\\\\!7\\\\times) across eight strongly labeled evaluation datasets. It serves as a versatile resource for use cases such as multi-label classification, covariate shift or self-supervised learning. We benchmark six well-known DL models in multi-label classification across three distinct training scenarios and outline further evaluation use cases in audio classification. We host our dataset on Hugging Face for easy accessibility and offer an extensive codebase to reproduce our results.
Hornung, G.:Einleitung (zusammen mit Simitis, S. / Spiecker gen. Döhmann, I.), Art. 1, Art. 94 und Art. 99 DSGVO (zusammen mit Spiecker gen. Döhmann, I.), Art. 3, Art. 4 Nr. 17 und Art. 27 DS-GVO sowie § 1 Abs. 4-8 BDSG.. In: Simitis, S. ; Hornung, G. ; Spiecker gen. Döhmann, I. (eds.): Datenschutzrecht. DS-GVO/BDSG. 2. Auflage.. Baden-Baden : Nomos Verlagsgesellschaft, 2025
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Simitis, S. ; Hornung, G. ; Spiecker gen. Döhmann, I. (eds.):Datenschutzrecht. DS-GVO/BDSG. 2. Auflage.. Baden-Baden : Nomos Verlagsgesellschaft, 2025
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Dittert, Nadine ; Pancratz, Nils ; Schmid, Ute ; Draude, Claude:Mehr Pionierinnen für die Informatik – Ein Programm zur Inspiration und Orientierung zum Informatikstudium für Schülerinnen.. In: Grillenberger, M. ; Grillenberger, A. (eds.): Grenzen überwinden - voneinander lernen : 21. GI-Fachtagung Informatik und Schule, 22. bis 24. September 2025, Stoos, Schweiz : Proceedings, Lecture Notes in Informatics. Bonn : Gesellschaft für Informatik, 2025, pp. 279–280
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Ein fortwährend relevantes Thema in der Informatik und ihrer Didaktik ist der Gender-Gap. Das Projekt PIONIERIN zielt darauf ab, Schülerinnen den Weg ins Informatikstudium zu bereiten. Im Fokus steht hierbei der Übergang von (außer-)schulischen Informatikaktivitäten zum Studium durch die Entwicklung von Lernumgebungen, die bekannte Forschungsergebnisse berücksichtigen und gezielt mit Informatikinhalten der ersten Semester verbinden. Die didaktisch rekonstruierten Lernangebote knüpfen dabei gezielt an den Perspektiven junger Frauen auf das Informatikstudium an. Forschungsseitig stehen die Wirksamkeit dieser Maßnahmen sowie Beweggründe für oder gegen ein Informatikstudium im Fokus, um langfristig den Gender-Gap in der Informatik zu reduzieren.
Mack D. ; Schmidt, L.:Montagetraining in virtueller Realität mit Variation der Unterstützung und Messung physiologischer Parameter.. In: Gesellschaft für Arbeitswissenschaft e. V. (ed.): Arbeit 5.0: Menschzentrierte Innovationen für die Zukunft der Arbeit: 71. Kongress der Gesellschaft für Arbeitswissenschaft (Aachen 2025). Sankt Augustin : GfA-Press, 2025, pp. 392–397
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Die Einarbeitung von Montagepersonal stellt eine große Herausforderung für Unternehmen dar. Der hohe Einarbeitungsaufwand und die zu erwartende Fluktuation erfordern neue Lösungen. Konventionelle Schulungen sind unflexibel (z. B. bei Sprachbarrieren) und reale Schulungen sind oft erst nach Einrichtung des Arbeitsplatzes möglich. Virtual Reality (VR) bietet die Möglichkeit eines ortsunabhängigen Trainings, bedarf aber weiterer Entwicklung. Eine vorangegangene Studie hat gezeigt, dass ein zu schnelles Durchlaufen von VR-Anwendungen den Trainingseffekt verringert. Adaptive Systeme mit variabler Unterstützung sind daher wünschenswert. Die Messung der Trainingsbeanspruchung ist für die Bewertung solcher Anpassungen relevant. In dieser Arbeit wurde die physiologische Beanspruchung durch VR-Montagetrainings mittels Herzratenvariabilität (HRV) untersucht. Es wurde ein VR-Training zur Montage eines Türnotentriegelungsgriffs entwickelt und in einer Between-Subjects-Studie mit zwei Gruppen (mit/ohne zusätzliche Unterstützung) evaluiert. Während des Trainings wurde die HRV zur Erfassung der Beanspruchung gemessen. Es zeigt sich, dass sich die Durchlaufzeiten signifikant zwischen den beiden Varianten unterscheiden.
Ali, Mohammad Wazed ; Mustafa, Mohammad Asif Ibna ; Shuvo, Md. Aukerul Moin ; Sick, Bernhard:Location-based Probabilistic Load Forecasting of Electric Vehicle Charging Sites: Deep Transfer Learning with Multi-Quantile Temporal Convolutional Network.. In: International Conference on Architecture of Computing Systems (ARCS) : Springer, 2025, pp. 205–219
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Electrification of vehicles is a potential way of reducing fossil fuel usage and thus lessening environmental pollution. Electric Vehicles (EVs) of various types for different transport modes (including air, water, and land) are evolving. Moreover, different EV user groups (commuters, commercial or domestic users, drivers) may use different charging infrastructures (public, private, home, and workplace) at various times. Therefore, usage patterns and energy demand are very stochastic. Characterizing and forecasting the charging demand of these diverse EV usage profiles is essential in preventing power outages. Previously developed data-driven load models are limited to specific use cases and locations. None of these models are simultaneously adaptive enough to transfer knowledge of day-ahead forecasting among EV charging sites of diverse locations, trained with limited data, and cost-effective. This article presents a location-based load forecasting of EV charging sites using a deep Multi-Quantile Temporal Convolutional Network (MQ-TCN) to overcome the limitations of earlier models. We conducted our experiments on data from four charging sites, namely Caltech, JPL, Office-1, and NREL, which have diverse EV user types like students, full-time and part-time employees, random visitors, etc. With a Prediction Interval Coverage Probability (PICP) score of 93.62%, our proposed deep MQ-TCN model exhibited a remarkable 28.93% improvement over the XGBoost model for a day-ahead load forecasting at the JPL charging site. By transferring knowledge with the inductive Transfer Learning (TL) approach, the MQ-TCN model achieved a 96.88% PICP score for the load forecasting task at the NREL site using only two weeks of data.
de Portugal Mecke, Diego Coello ; Alyoussef, Haya ; Stubbemann, Maximilian ; Koloiarov, Ilia ; Hanika, Tom ; Schmidt-Thieme, Lars: STADE: Standard Deviation as a Pruning Metric (2025)
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Reinhard, Philipp ; Moritz, Josephine Mago ; Wagner, Sophie ; Li, Mahei Manhai:From Human-Human to Human-AI Delegation: A Leadership Theory Driven Investigation of Delegation.. In: Poster presented at the Annual Meeting of the Academy of Management (AOM). vol. Poster. Copenhagen, Denmark, 2025
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The emergence of generative AI (GenAI) has transformed work by enabling humans to delegate tasks like writing and coding to GenAI agents such as ChatGPT. While existing studies highlight AI capability awareness and perceived competence as drivers of delegation, they overlook parallels between human-AI and human-human delegation. Our ongoing research proposes that human-AI delegation can be understood through a leadership lens, with leadership experience and traits as key predictors. Hence, we investigate whether individuals with leadership experience demonstrate higher delegation levels than those without such experience. In an initial online experiment (n=48), participants were grouped by leadership experience and AI transparency to decide whether to delegate or personally perform image classification tasks. Preliminary findings indicate that under a low-transparency condition, leadership experience results in higher delegation rates. However, leadership alone does not significantly predict delegation. Transparency in GenAI consistently leads to higher delegation, while greater domain knowledge corresponds to lower delegation rates. Our ongoing research seeks to deepen understanding of delegation behavior and its predictors in the age of GenAI.
Mack, D. ; Schmidt, L.:Support for a Complex Assembly Task Through Augmented Reality Instructions With See-Through Data Glasses - Comparison With Smartphone and Paper Instructions, 2025
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The study presented here deals with the assembly of an emergency door release handle for unlocking the doors of railway vehicles at a realistic workstation with different instructions. For this purpose, a new AR instruction with see-through data glasses was developed and compared with smartphone-based AR instructions and paper instructions. The paper instructions represent the status quo of the assembly process. The implementation with see-through data glasses is technically more complex but has the advantage over the previously analysed smartphone that the hands are free for assembly. The hypotheses investigated are that the type of instruction has an influence on the assembly time, the number of errors, the usability and the strain on the assembler. Each type of instruction was studied with eight subjects and five assembly runs in a between-subjects design. There was no significant difference in total assembly time between the see-through data glasses and the smartphone. A comparable number of errors with lower strain makes the see-through glasses still interesting for knowledge transfer.
Alhamwy, Yasin ; Hohlfeld, Oliver:TraffIX: Monitoring Global Internet Traffic Trends by Crawling IXP Statistics.. In: ACM SIGCOMM Workshop on Next-Generation Network Observability (NGNO) : ACM, 2025
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Schlagwein, Daniel ; Currie, Wendy ; Leimeister, Jan Marco ; Willcocks, Leslie: Digital futures: Definition (what), importance (why) and methods (how). In: Journal of Information Technology (JIT) vol. 40 (2025), Nr. 1, pp. 2–8
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“Digital futures” as a research field that examines diverse, long-term future(s) scenarios influenced by digital technologies has been proposed in information systems. Here, based on the emerging literature on digital futures, we define what this term means, delineate it from related concepts such as digital transformation, articulate why the information systems field should take note and consider the study of digital futures, and provide an overview of approaches.
Alhamwy, Yasin ; Hohlfeld, Oliver:Beyond IP: Amateur Radio PSKReporter as a Crisis Measurement Tool.. In: ACM Internet Measurement Conference Poster, 2025
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Alhamwy, Yasin ; Alshebane, Abdalmohimn ; Hohlfeld, Oliver:Power Out, Internet Down? Measuring Internet Resilience in South Africa.. In: ACM Internet Measurement Conference Poster, 2025
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Mack, D. ; Schmidt, L.:Integration realer Werkzeuge in eine VR-Trainingssoftware für komplexe manuelle Montageprozesse: Vergleichsstudie mit und ohne Haptik.. In: Köppen, V. ; Strickroth, S. (eds.): DELFI 2025: 23. Fachtagung Bildungstechnologien (Freiberg 2025), Lecture Notes in Informatics (LNI) - Proceedings. Bonn : Gesellschaft für Informatik, 2025, pp. 57–70 *** Best Paper Award ***
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Die hier vorgestellte Studie betrachtet das Training der Montage eines Notgriffs zur Türentriegelung von Schienenfahrzeugen an einem originalgetreuen Arbeitsplatz mit verschiedenen Trainingsanwendungen. Dazu wurde eine VR-Trainingsanwendung mit realen Montagevorrichtungen und Werkzeugen neu entwickelt und mit einer VR-Trainingsanwendung ohne solche haptischen Elemente verglichen. Für beide Anwendungen wurde dieselbe Videodatenbrille verwendet. Das Training ermöglicht eine niederschwellige Einarbeitung neuer Mitarbeiter ohne Sprachbarrieren und ohne einen Montagearbeitsplatz in der Produktion zu blockieren. Die untersuchten Hypothesen sind, dass die Art des Trainings einen Einfluss auf die Trainingszeit, die spätere Montagezeit, die Anzahl der Fehler, die Gebrauchstauglichkeit der Anwendung und die Beanspruchung des Montagepersonals während des Trainings hat. Beide Trainings wurden in einem Between-Subject-Design mit jeweils fünfzehn Probanden fünfmal eingesetzt. Anschließend wurden drei reale Montagedurchgänge durchgeführt. Sowohl bei den Trainingszeiten als auch bei den Montagezeiten konnten signifikante Unterschiede zwischen den Trainingsanwendungen festgestellt werden, wobei sich bei der Trainingsanwendung mit Haptik längere Trainings-, aber kürzere reale Montagezeiten zeigten.
Mack, D. ; Schmidt, L.:Integration realer Werkzeuge in eine VR-Trainingssoftware für komplexe manuelle Montageprozesse (Forschungsdaten).. In: . Universität Kassel : Fachgebiet Mensch-Maschine-Systemtechnik, 2025
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Der Datensatz gehört zu der Publikation "Integration realer Werkzeuge in eine VR-Trainingssoftware für komplexe manuelle Montageprozesse - Vergleichsstudie mit und ohne Haptik" (DELFI 2025). In der Studie wurde der Einfluss von haptischem Feedback in Virtual-Reality-Trainingsumgebungen auf den Lerntransfer bei der Montage eines Notgriffs für Schienenfahrzeuge untersucht. In einem Between-Subjects-Design absolvierten zwei Gruppen (je 15 Teilnehmende) ein VR-basiertes Training mit und ohne Integration realer Werkzeuge und Montagevorrichtungen. Anschließend führten die Probanden reale Montagen durch. Erhoben wurden: - Demografische Daten und Technikaffinität (TA-EG) - Trainings- und Montagezeiten (Videoaufzeichnung) - Fehleranzahl bei der Montage - Gebrauchstauglichkeit (SUS), Beanspruchung (NASA-TLX) und qualitative Feedbacks Die Auswertung erfolgte mittels t-Test, Mann-Whitney-U-Test und deskriptiver Statistik. Die Ergebnisse zeigen, dass haptische Elemente in der VR-Anwendung signifikant positive Effekte auf die Montagezeit und die Fehlerreduktion hatten. Alle Teilnehmenden gaben ihr schriftliches Einverständnis zur Teilnahme und zur Nutzung der Daten.
Reinhard, Philipp ; Liessmann, Annina ; Weinzierl, Sven ; Zilker, Sandra ; Li, Mahei Manhai ; Matzner, Martin ; Leimeister, Jan Marco:EVENT LOG CONSTRUCTION FROM MULTIMODAL DATA – A REFERENCE ARCHITECTURE FOR EXPLOITING PROCESS MINING IN IT SERVICE MANAGEMENT.. In: European Conference on Information Systems (ECIS). Amman, Jordan, 2025
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Process mining holds substantial potential to discover and optimize processes utilizing event log data. However, current applications primarily rely on (semi-)structured data from process-aware information systems, limiting their capacity to incorporate multimodal data from diverse sources, particularly in domains like IT service management (ITSM). While existing stand-alone approaches can extract event log data from unstructured sources such as videos, documents, or bot logs, they fall short of leveraging the full range of real-world data available in ITSM. To address this gap, our research focuses on developing a reference architecture for constructing event logs from multimodal data. This architecture integrates diverse data types, construction functions, and process mining use cases. Following a design science research methodology, we aim to evaluate the architecture through a software artifact leveraging real-world ITSM data and incorporating state-of-the-art generative AI. In this study, we present the preliminary reference architecture and share early insights from expert evaluations.
Reinhard, Philipp ; Li, Mahei Manhai ; Fina, Matteo ; Leimeister, Jan Marco:Fact or Fiction? Exploring Explanations to Identify Factual Confabulations in RAG-Based LLM Systems.. In: Extended Abstracts of the CHI Conference on Human Factors in Computing Systems (CHI EA ’25). Yokohama, Japan, 2025
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The adoption of generative artificial intelligence (GenAI) and large language models (LLMs) in society and business is growing rapidly. While these systems often generate convincing and coherent responses, they risk producing incorrect or non-factual information, known as confabulations or hallucinations. Consequently, users must critically assess the reliability of these outputs when interacting with LLM-based agents. Although advancements such as retrieval-augmented generation (RAG) have improved the technical performance of these systems, there is a lack of empirical models that explain how humans detect confabulations. Building on the explainable AI (XAI) literature, we examine the role of reasoning-based explanations in helping users identify confabulations in LLM systems. An online experiment (n = 97) reveals that analogical and factual explanations improve detection accuracy but require more time and cognitive effort than the no explanation baseline.
Kopp, Daniel ; Hohlfeld, Oliver:DDoS on Repeat: Measuring Pulse-Wave DDoS in the Wild.. In: ITC-36 : IEEE, 2025 — ISBN 978-3-948377-03-8, pp. 1–9
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Reinhard, Philipp ; Li, Mahei Manhai ; Oeste-Reiß, Sarah ; Bretschneider, Ulrich:GenAI-CoP: A Reusable Co-Creation Process for Identifying Generative AI Agents.. In: International Conference on Design Science Research in Information Systems and Technology (DESRIST). Montego Bay, Jamaica : Springer, 2025
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Generative AI (GenAI) can enhance organizational processes and productivity. To realize these benefits, organizations must design GenAI agents that augment human work. A key challenge lies in making sense of the diverse forms of GenAI agents and aligning them with existing work processes. To address this, we propose a reusable co-creation process for identifying GenAI agents (GenAI-CoP) that enables organizations to involve domain experts in leveraging GenAI’s potential for their products and workflows. Grounded in action design research (ADR), our approach draws on collaboration engineering to develop GenAI-CoP. We iteratively refined and tested it through simulations, expert interviews, and pilot tests. Our research contributes to GenAI and collaboration engineering literature by introducing a reusable, bottom-up identification procedure for GenAI agents. GenAI-CoP packages facilitation expertise, allowing practitioners to execute it without prior training in tools or techniques. They gain actionable guidelines to identify augmentation potential and summarize it as GenAI agents.
Kopp, Daniel:DDoS equilibrium: Internet measurement perspective on attacks and mitigation., University of Kassel, Germany, PhD dissertation, 2025
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Kopp, Daniel: DDoS in Balance: Globale Angriffsdynamik und Mitigation.. Bonn, Gesellschaft für Informatik e.V. (2025) — ISBN 978-3-88579-983-2
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Reinhard, Philipp ; Li, Mahei Manhai ; Peters, Christoph ; Leimeister, Jan Marco: Enhancing IT Service Management Through Process Mining – A Digital Analytics Perspective on Documented Customer Interactions. In: Bruhn, M. ; Hadwich, K. (eds.) Forum Dienstleistungsmanagement vol. Digital Analytics im Dienstleistungsmanagement (2025), pp. 327–360
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Our study explores the integration of text mining and process mining to enhance the understanding of IT support agents' problem-solving activities documented in service tickets. Despite the rise of AI-based self-service systems, the pressure on IT support to deliver high-quality service remains significant, necessitating advanced analytical approaches. While text mining has been used for classifying customer requests or predicting satisfaction, it falls short in revealing the actual processes agents follow. By conducting a systematic literature review and a case study, this research outlines a novel approach combining text and process mining. The findings provide practical guidance for extracting activity catalogs and generating event logs from service documentation, offering valuable insights into service processes and highlighting challenges related to data quality in digital analytics.
Hofmann, Peter ; Meierhöfer, Simon ; Müller, Leon ; Oberländer, Anna Maria ; Protschky, Dominik: Conceptualizing the Design Space of Artificial Intelligence Strategy: A Taxonomy and Corresponding Clusters. In: Business & Information Systems Engineering (BISE) (2025)
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As the real-world use of Artificial intelligence (AI) becomes increasingly pervasive, the interest of organizations in the nascent technology is currently at its peak. Although the scientific literature points out that a strategy is key to responding to technological breakthroughs, the three facets of autonomy, learning, and inscrutability that distinguish contemporary AI from previous generations of IT give rise to a novel and distinctive perspective on strategy. Particularly, the facets of contemporary AI lead to AI-induced market and resource shifts and, thus, to AI-related strategic challenges regarding the scope, scale, speed, and source from which organizations make strategic deliberations. This ultimately requires a strategic response from organizations in the form of an AI strategy. Against this backdrop, this study proposes a multi-layer taxonomy with 15 dimensions and 45 characteristics that unveils how organizations currently structure and organize an AI strategy. Conducting a cluster analysis on this foundation, this study further provides four clusters that delineate predominant design options for developing a new AI strategy or evaluating an existing one. In this way, the results contribute to a fundamental understanding of the design space of an AI strategy and enrich recent discussions among researchers and practitioners on how to advance the real-world use of AI.
Abdulla, Mohammad ; Hille, Tobias ; Dürrschnabel, Dominik ; Stumme, Gerd:Rises for Measuring Local Distributivity in Lattices.. In: Cellier, P. ; Ganter, B. ; Missaoui, R. (eds.): Conceptual Knowledge Structures. Cham : Springer Nature Switzerland, 2025 — ISBN 978-3-032-03364-2, pp. 392–407
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Distributivity is a well-established and extensively studied notion in lattice theory. In the context of data analysis, particularly within Formal Concept Analysis (FCA), lattices are often observed to exhibit a high degree of distributivity. However, no standardized measure exists to quantify this property. In this paper, we introduce the notion of rises in (concept) lattices as a means to assess distributivity. Rises capture how the number of attributes or objects in covering concepts change within the concept lattice. We show that a lattice is distributive if and only if no non-unit rises occur. Furthermore, we relate rises to the classical notion of meet- and join distributivity. We observe that concept lattices from real-world data are to a high degree join-distributive, but much less meet-distributive. We additionally study how join-distributivity manifests on the level of ordered sets.
Angelini, Leonardo ; Klumbyte, Goda ; Daniel, Maxime ; Couture, Nadine ; Mugellini, Elena ; Draude, Claude:Tangible LLMs: Tangible Sense-Making For Trustworthy Large Language Models.. In: Proceedings of the Nineteenth International Conference on Tangible, Embedded, and Embodied Interaction, TEI ’25. New York, NY, USA : Association for Computing Machinery, 2025 — ISBN 9798400711978, pp. 1–5
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The goal of this studio is to explore and discuss the potential benefits and the open challenges of giving a physical form to Artificial Intelligence (AI), towards the definition of tangible, or graspable AI. In this studio, we want to carry out a hands-on exploration of the potential of tangible interaction to help people grasp how transformer-based AI models, such as Large Language Models (LLMs), make predictions. Starting from a basic understanding of the core mechanisms of these models – input/output embedding, positional encoding, self-attention, and multi-head attention, we will explore how tangible interaction properties, such as data physicalization and tangible manipulation, may help designing graspable interfaces for facilitating the understanding and control of LLMs. Fostering AI transparency and human agency, we believe that tangible interaction may help increase the trustworthiness of Large Language Models. Through brainstorming and prototyping activities, we aim at identifying effective tangible representations and manipulation techniques that will help users grasp and trust LLMs.
Dittmar, Angelia ; Reinhard, Philipp ; Li, Mahei Manhai ; Karst, Fabian ; Leimeister, Jan Marco:Integrating Brand Identity Into AI-Based Conversational Agents: A Systematic Literature Review.. In: Hawaii International Conference on System Sciences (HICSS). Big Island, Hawaii, 2025
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A company's brand identity is vital for fostering meaningful interactions with customers in a digital economy. As generative artificial intelligence (GenAI) becomes increasingly integrated into our daily lives, AI-based assistants are evolving into the primary channel for representing a brand's identity. Consequently, brand departments face the challenge of translating their company's brand identity into highly interactive AI-based assistants effectively. While there is diverse research on single cues that influence user perceptions, the literature lacks a comprehensive understanding of conversational cues and their impact on brand-related outcomes. Hence, we conduct a systematic literature review to identify verbal and visual cues in the design of AI-based chatbots and examine how they influence the perceptions of the assistants and the brand. We contribute a conceptual framework that summarizes the independent and dependent variables as well as their interrelationships and provides researchers and practitioners with a basis for designing and studying conversational design in the age of GenAI.
Meier, Alexander ; Rietsche, Roman ; Li, Mahei Manhai:DEVELOPING A HYBRID VECTOR-GRAPH RETRIEVAL SYSTEM FOR ENTITY-PRESERVING AND INSPIRING STORYLINE CREATION OF PRESENTATION SLIDES.. In: European Conference on Information Systems (ECIS). Amman, Jordan, 2025
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Effective presentation slide creation is crucial for impactful communication, yet fully automating this task with AI is insufficient. Hybrid human-AI solutions often perform worse than pure AI or human creation due to overreliance on AI. To address this, we develop design principles for configuring human-AI hybrid systems in complex knowledge tasks using a design science research approach. Our prototype, NarrativeNet Weaver, leverages an underutilized corpus of existing presentation slides, applying generative AI advances in hybrid dense embedding and graph-based retrieval techniques. Evaluated through 15 think-aloud sessions and 73 user trials, users with NarrativeNet Weaver exhibit greater engagement and achieve equal or improved slide quality compared to those using a ChatGPT-based chatbot with a vector database. We contribute design knowledge for human-AI systems for complex multimodal content and offer a new approach to retrieving and visualizing existing slides, enhancing the utilization of valuable but underused resources.
Klumbytė, Goda ; Jones, Emily ; Braidotti, Rosi:Conclusion: (Infra)Structures for the Convergences.. In: Klumbytė, G. ; Jones, E. ; Braidotti, R. (eds.): Posthuman Convergences: Transdisciplinary Methods and Practices. Edinburgh : Edinburgh University Press, 2025, pp. 365–278
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Klumbytė, Goda ; Jones, Emily ; Braidotti, Rosi:Introduction to Posthuman Convergences.. In: Klumbytė, G. ; Jones, E. ; Braidotti, R. (eds.): Posthuman Convergences: Transdisciplinary Methods and Practices. Edinburgh : Edinburgh University Press, 2025, pp. 1–25
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Copei, Sebastian ; Hohlfeld, Oliver ; Kosiol, Jens:Industrial Views on DevOps Adoption Before and After Implementation: A Qualitative Comparison.. In: Bianculli, D. ; Sartaj, H. ; Andrikopoulos, V. ; Pautasso, C. ; Mikkonen, T. ; Pérez, J. ; Bures, T. ; Sanctis, M. D. ; et al. (eds.): ECSA (Tracks and Workshops), Lecture Notes in Computer Science. vol. 15982 : Springer, 2025 — ISBN 978-3-032-04403-7, pp. 202–211
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Plettenberg, Pascal ; Alcalde, André ; Sick, Bernhard ; Thomas, Josephine M.:Graph Neural Networks for Automatic Addition of Optimizing Components in Printed Circuit Board Schematics.. In: European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases (ECMLPKDD) : Springer, 2025, pp. 508–524
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The design and optimization of Printed Circuit Board (PCB) schematics is crucial for the development of high-quality electronic devices. Thereby, an important task is to optimize drafts by adding components that improve the robustness and reliability of the circuit, e.g., pull-up resistors or decoupling capacitors. Since there is a shortage of skilled engineers and manual optimizations are very time-consuming, these best practices are often neglected. However, this typically leads to higher costs for troubleshooting in later development stages as well as shortened product life cycles, resulting in an increased amount of electronic waste that is difficult to recycle. Here, we present an approach for automating the addition of new components into PCB schematics by representing them as bipartite graphs and utilizing a node pair prediction model based on Graph Neural Networks (GNNs). We apply our approach to three highly relevant PCB design optimization tasks and compare the performance of several popular GNN architectures on realworld datasets labeled by human experts. We show that GNNs can solve these problems with high accuracy and demonstrate that our approach offers the potential to automate PCB design optimizations in a timeand cost-efficient manner.
Benner, Dennis ; Rauch, Jannik ; Janson, Andreas ; Leimeister, Jan Marco:An Explorative Diary Study of AI-Generated Podcasts in University Education: Benefits, Challenges, and Future Directions.. In: Extended Abstracts of the CHI Conference on Human Factors in Computing Systems (CHI EA ’25). Yokohama, Japan : ACM, 2025
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In this study, we explore the potential of AI-generated podcasts as an educational tool in the evolving landscape of learning media. Podcasts have grown increasingly relevant in education due to their accessibility and ability to integrate learning into everyday life. With the advent of generative artificial Intelligence (AI), there is a unique opportunity for scalable and adaptable creation of learning media. However, with novel technology, there also come new challenges. Thus, we developed fine-tuned AI-generated podcasts using Google NotebookLM, our course materials, and a custom prompt. We conducted a one-month explorative evaluation in the field using a qualitative diary study. Our study reveals that students find the podcasts beneficial for flexible everyday learning but also point toward challenges like a lack of emotional engagement and technical non-English language issues. In sum, our study highlights the current benefits and challenges of AI-generated podcasts and presents an agenda for future research.
Benner, Dennis ; Janson, Andreas ; Tan, Chee-Wee:Less is More or More is Better? Comparing Static and Generative AI-Based Recovery for Chatbot Service Breakdowns.. In: International Conference on Information Systems (ICIS). Nashville, USA, 2025
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Conversational breakdowns in chatbot-based customer service interactions can impair service quality and brand perception. Our study investigates how static versus generative AI (GAI)-based recovery affects user experience in such scenarios. Using a dual-study design, Study 1 examines two static strategies: Inform (explanation-focused) and Repair (action-focused). We find that Repair significantly enhances recovery quality and service perception, while Inform offers limited benefits when used alone. Study 2 explores the potential of GAI-driven recovery, employing a chatbot capable of nuanced, interactive support. Preliminary findings suggest that GAI-based recovery may increase resolution success, particularly in complex interactions, but could demand higher cognitive effort from users. By comparing both approaches and introducing a sequencing approach, our study provides novel insights into how recovery design and GAI influence service outcomes. Our results inform the design of future chatbot service systems, suggesting that adaptive, generative recovery may complement traditional static recovery strategies under specific conditions.
Chowdhury, Ishraque Hossain ; Aurora, S.R. ; Chowdhury, Soumyadeb ; Elgayeva, Kate ; Janson, Andreas ; Jarrahi, Mohammad Hossein ; Krakowski, Sebastian ; Nguyen, Minh Thu Nhien ; et al.:AI Meets Management: Redefining Leadership and Managerial Roles in the New Era.. In: Academy of Management Meeting (AOM). Copenhagen, Denmark, 2025
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Advancements in artificial intelligence (AI) have continued to change many aspects of organizations, including leadership and managerial roles. Emerging technologies within AI, for example, natural language processing , machine learning, data mining, and Generative AI (GenAI) can be used for innovative ways to transform managerial practices, while at the same time, posing new questions about the current ways things are done at the leadership and managerial levels. This panel symposium examines the potential of AI, especially GenAI, in critically questioning current leadership and managerial practices as well as improving decision-making and other organizational processes. We bring together leading scholars and practitioners to provide insights into how GenAI may shape these practices, what changes may occur in the organization due to the widespread use of GenAI, and how we can ride these waves into the future.
Posthuman Convergences: Transdisciplinary Methods and Practices, Klumbytė, G. ; Jones, E. ; Braidotti, R. (eds.).
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Hille, Tobias ; Hanika, Tom:Incomplete Formal Contexts and Their Intrinsic Dimension.. In: Cellier, P. ; Ganter, B. ; Missaoui, R. (eds.): SpringerLink, Lecture Notes in Computer Science. vol. 15941. Cham, Switzerland : Springer, 2025 — ISBN 978-3-032-03364-2, pp. 342–358
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Hirth, Johannes ; Hanika, Tom:The Geometric Structure of Topic Models.. In: Cellier, P. ; Ganter, B. ; Missaoui, R. (eds.): CONCEPTS, Lecture Notes in Computer Science. vol. 15941 : Springer, 2025 — ISBN 978-3-032-03364-2, pp. 19–34
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Plettenberg, Pascal ; Köhler, Dominik ; Sick, Bernhard ; Thomas, Josephine M.: Flow-Attentional Graph Neural Networks. In: Transactions on Machine Learning Research (2025)
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Graph Neural Networks (GNNs) have become essential for learning from graph-structured data. However, existing GNNs do not consider the conservation law inherent in graphs associated with a flow of physical resources, such as electrical current in power grids or traffic in transportation networks, which can lead to reduced model performance. To address this, we propose flow attention, which adapts existing graph attention mechanisms to satisfy Kirchhoff’s first law. Furthermore, we discuss how this modification influences the expressivity and identify sets of non-isomorphic graphs that can be discriminated by flow attention but not by standard attention. Through extensive experiments on two flow graph datasets (electronic circuits and power grids), we demonstrate that flow attention enhances the performance of attention-based GNNs on both graph-level classification and regression tasks.
Klumbytė, Goda ; Draude, Claude: Matters of Explanation: Rethinking Explainability with Tangible, Embodied, Material Interactions. In: Proceedings of the AAAI/ACM Conference on AI, Ethics, and Society vol. 8 (2025), Nr. 2, pp. 1491–1500
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Meier, David ; Viefhaus, Jens ; Hartmann, Gregor ; Helml, Wolfram ; Otto, Thorsten ; Sick, Bernhard: Reconstructing time-of-flight detector values of angular streaking using machine learning. In: Physical Review Accelerators and Beams vol. 28, American Physical Society (2025), Nr. 7, p. 074601
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Angular streaking experiments enable for experimentation in the attosecond regions. However, the deployed time-of-flight (TOF) detectors are susceptible to noise and failure. These shortcomings make the outputs of the TOF detectors hard to understand for humans and further processing, such as, for example, the extraction of beam properties. In this article, we present an approach to remove high noise levels and reconstruct up to three failed TOF detectors from an arrangement of 16 TOF detectors. Due to its fast evaluation time, the presented method is applicable online during a running experiment. It is trained with simulation data, and we show the results of denoising and reconstruction of our method on real-world experiment data.
Klumbytė, Goda ; Draude, Claude:New Materialist Informatics: New Materialism/Computer Science/Technology Design.. In: Klumbytė, G. ; Jones, E. ; Braidotti, R. (eds.): Posthuman Convergences: Transdisciplinary Methods and Practices. Edinburgh : Edinburgh University Press, 2025, pp. 184–216
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2024[ to top ]

Schild, H.-H.: Speicherdauer personenbezogener Daten in Wirtschaftsauskunfteien, Anmerkung zu EuGH, Urteil vom 7.12.2023 – C-26/22 und C-64/22. In: Zeitschrift für Datenschutz (2024), pp. 166–173
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Schild, H.-H.: Einschränkung des Unterrichtungsanspruchs des Personalrats bei Übermittlung sensibler Gesundheitsdaten unter Namensnennung, Anmerkung zu VGH Hessen, Beschluss v. 7.3.2024 – 22 A 2036/19.PV. In: ZfPR online (2024), Nr. 10/24, pp. 4–10.ma
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Schild, H.-H.: Vorschlag der EU-Kommission zur Beschleunigung der Beschwerdeverfahren bei Grenzüberschreitungen. In: Datenschutz Nachrichten (2024), pp. 13–16
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Schild, H.-H.: Die zuständige Datenschutzaufsichtsbehörde für die Justiz. In: Datenschutz Nachrichten (2024), pp. 16–20
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Mathuseck, Lars ; Götz, Johann ; Busch, Lennart ; David, Klaus:BikeSense: Riding Behaviour Recognition Using An Instrumented Bicycle.. In: BikeSense: Riding Behaviour Recognition Using An Instrumented Bicycle Lars Mathuseck, Johann G¨otz, Lennart Busch, Klaus David University of Kassel, Kassel, Germany comtec@uni-kassel.de Abstract—Riding a bicycle is an environmentally friendly and healthy mode of transportation. However, riding a bicycle also comes with the risk of traffic accidents. One approach to reduce accidents is to use cooperative collision avoidance systems that enable smartphones, carried by cyclists, to communicate with intelligent vehicles. Smartphones are not only equipped with GNSS sensors to obtain a cyclist’s position, but they also come with IMU sensors, which can be used to recognise a cyclist’s riding behaviour. Such riding behaviour information can help to improve collision avoidance systems, because the system can adapt its internal trajectory prediction according to the cyclist’s riding behaviour. This results in a more accurate position prediction based on the actual behaviour of the cyclist, and thus a higher chance of avoiding a collision. In this work, we propose our system BikeSense and perform experiments to collect sensor data on different riding behaviours, such as pedalling, coasting, and braking. To classify these riding behaviours, we use a transformer-based classifier. Then, we analyse how different typ- ical carrying positions of the smartphone in body-worn positions (trouser pocket and backpack) and positions for an on-board IMU (handlebar and frame) influence the detection accuracy. Our results show a promising riding behaviour recognition rate with an average f1-score of 96.5%. Index Terms—bicycle, pedalling detection, behaviour, Human Activity Recognition I. INTRODUCTION With each year, bicycles are becoming more and more popular as a transportation option in cities. According to the European Parliamentary Research Service (EPRS) [1], there are 1 billion bicycles in the world in 2022. However, riding a bicycle is still considered risky compared to driving a car, especially in urban environments [2]. According to the report of the European Road Safety Observatory [3] from 2021, cyclists are the only type of road users in the EU for which no decline in fatalities has been measured since 2010. One reason could be that cars are more in focus and already have countermeasures in production cars, such as braking assistants, lane-keeping systems, or attention warning systems. Passive protection measures, such as helmets, are important in reducing the risk of serious injuries, but not everyone opts for them, and they do not prevent accidents in the first place. On the other hand, active protection measures for cyclists, such as visual-based [4], [5] or cooperative collision avoidance systems [6]–[8], have been proposed by many authors. These systems use camera data from the car or exchange movement information between road users to warn a car that can brake in case of an imminent collision with a vulnerable road user (VRU). Fig. 1: Future position prediction of the bicycle as probability map within a cooperative collision avoidance system of a typical street-crossing accident scenario. Position prediction without riding behaviour information (left) and with riding behaviour information (right). Typically, these collision avoidance systems forecast the movement trajectory of VRUs some seconds into the future to calculate potential collision points [9]. Therefore, collision avoidance systems have to assume a future movement model, such as a constant-velocity model or a constant-acceleration model based on current movement [10]. Riding behaviour recognition can help to improve these active protection measures. For example, pedalling or braking can influence the speed of cyclists and hence their future po- sition (Fig. 1). Therefore, we investigate how to recognise this riding behaviour. Inertial Measurement Unit (IMU) sensors are promising in detecting riding behaviour, because these sensors are already widely used in human activity recognition [11]. Bicycles of the future will be equipped with various sensors, such as on-board IMU sensors, among other sensors that are currently only available in modern cars. However, most of the bicycles currently available do not have such sensors. Therefore, in this paper, we analyse both cases, that is, on- board IMU sensors attached directly to the bicycle, as well as IMU sensors of a smartphone, carried by the cyclist. To simulate the on-board IMU sensors, we attached smartphones to the bicycle and used the smartphone sensors to record the data. We conducted real-life experiments using our instrumented bicycle to collect training and test data. Furthermore, we propose our system BikeSense for riding behaviour recog- nition. Using machine learning, we try to detect whether CoMoRea 2024: 20th Workshop on Context and Activity Modeling and Recognition 979-8-3503-0436-7/24/$31.00 ©2024 IEEE 2024 IEEE International Conference on Pervasive Computing and Communications Workshops and other Affiliated Events (PerCom Workshops) : IEEE, 2024 — ISBN 979-8-3503-0436-7/24, pp. 1–6
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Meywirth, Sophia:Designing a Large Language Model-Based Coaching Intervention for Lifestyle Behavior Change.. In: Mandviwalla, M. ; Söllner, M. ; Tuunanen, T. (eds.): Design Science Research for a Resilient Future. Cham : Springer Nature Switzerland, 2024 — ISBN 978-3-031-61175-9
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Adopting and maintaining healthy lifestyle behaviors such as regular exercise and balanced nutrition remain challenging despite their well-documented benefits for preventing chronic diseases and promoting overall well-being. Motivational Interviewing (MI) has emerged as a promising technique to address ambivalence and facilitate behavior change. However, traditional face-to-face delivery of MI interventions is limited by scalability and accessibility issues. Leveraging recent advancements in LLMs, this paper proposes an innovative approach to deliver MI-based coaching for lifestyle behavior change digitally. Following a problem-centered DSR approach, we created an initial prototype based on MI theory and qualitative user interviews using ChatGPT (GPT-3.5). We evaluated our prototype in a qualitative study. Our research outcomes include five design principles and thirteen system requirements. This research enhances the design knowledge base in LLM-based health coaching. It marks an essential first step towards designing LLM-based MI interventions, contributing valuable insights for future research in this emerging field.
Schild, H.-H.: Scorewert der SCHUFA als automatisierte Entscheidung nach Art. 22 DS-GVO, Anmerkung zu EuGH, Urteil vom 7.12.2023 – C-634/21. In: Zeitschrift für Datenschutz (2024), pp. 157–166
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Mack, D. ; Schmidt, L.:Unterstützung einer komplexen Montageaufgabe durch eine Augmented-Reality-Anleitung mit Durchsichtdatenbrille.. In: Schulz, S. ; Kiesler, N. (eds.): DELFI 2024: 22. Fachtagung Bildungstechnologien (Fulda 2024), Lecture Notes in Informatics (LNI) - Proceedings. Bonn : Gesellschaft für Informatik, 2024, pp. 49–62 *** Best Paper Candidate ***
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Die hier vorgestellte Studie betrachtet die Montage eines Notgriffs zur Türentriegelung von Schienenfahrzeugen an einem originalgetreuen Arbeitsplatz mit unterschiedlichen Anleitungen. Dazu wurde eine AR-Anleitung mit einer Durchsichtdatenbrille neu entwickelt und mit einer Smartphone- basierten AR-Anleitung sowie einer Papieranleitung verglichen. Die Papieranleitung stellt den Status Quo in der Montage dar. Die Umsetzung mit einer Durchsichtdatenbrille ist zwar technisch aufwändiger, hat aber gegenüber dem bereits untersuchten Smartphone den Vorteil, dass die Hände für die Montage frei sind. Die untersuchten Hypothesen sind, dass die Anleitungsart einen Einfluss auf die Montagezeit, die Anzahl der Fehler, die Gebrauchstauglichkeit und die Beanspruchung der montierenden Personen hat. Jede Anleitungsart wurde mit acht Probanden und fünf Montagedurchgängen in einem Between- Subject-Design untersucht. Zwischen Durchsichtdatenbrille und Smartphone zeigte sich bei der Gesamtmontagedauer kein signifikanter Unterschied. Eine vergleichbare Fehleranzahl bei geringerer Beanspruchung macht die Durchsichtdatenbrille dennoch interessant für die Wissensvermittlung.
Mack, D. ; Funk, J. ; Schmidt, L.:Einsatz von Virtual Reality zum Erlernen eines Montageprozesses.. In: Gesellschaft für Arbeitswissenschaft e. V. (ed.): Arbeitswissenschaft in-the-loop - Mensch-Technologie-Integration und ihre Auswirkung auf Mensch, Arbeit und Arbeitsgestaltung: 70. Kongress der Gesellschaft für Arbeitswissenschaft (Stuttgart 2024). Sankt Augustin : GfA-Press, 2024, pp. 1–6 (H.4.2)
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Für die Montage von komplexen Baugruppen soll ein Schulungsangebot entwickelt werden, welches auch ohne Sprachbarriere ein niedrigschwelliges Anlernen neuer Arbeiter ermöglicht. In der hier vorgestellten Studie wurden zwei Arten von Montagetrainings für die Montage einer realen Baugruppe eines mittelständischen Unternehmens verglichen. Eine Gruppe wurde in einer VR-Trainingssimulation geschult. Die Kontrollgruppe wurde mit einem Video aus der Egoperspektive der VR-Anwendung trainiert. Dabei wurden die Gebrauchstauglichkeit (SUS) und die Beanspruchung (NASA-TLX) bei der Verwendung der Anwendungen getestet. Anschließend wurde die komplexe Baugruppe an einem Montagearbeitsplatz montiert, wobei die benötigte Zeit und die gemachten Fehler protokolliert wurden.
Hetzel, Manuel ; Reichert, Hannes ; Doll, Konrad ; Sick, Bernhard:Reliable Probabilistic Human Trajectory Prediction for Autonomous Applications.. In: Workshop on Uncertainty Quantification for Computer Vision (UNCV), ECCV : Springer, 2024, pp. 135–152
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Autonomous systems, like vehicles or robots, require reliable, accurate, fast, resource-efficient, scalable, and low-latency trajectory predictions to get initial knowledge about future locations and movements of surrounding objects for safe human-machine interaction. Furthermore, they need to know the uncertainty of the predictions for risk assessment to provide safe path planning. This paper presents a lightweight method to address these requirements, combining Long Short-Term Memory and Mixture Density Networks. Our method predicts probability distributions, including confidence level estimations for positional uncertainty to support subsequent risk management applications and runs on a lowpower embedded platform. We discuss essential requirements for human trajectory prediction in autonomous vehicle applications and demonstrate our method’s performance using multiple traffic-related datasets. Furthermore, we explain reliability and sharpness metrics and show how important they are to guarantee the correctness and robustness of a model’s predictions and uncertainty assessments. These essential evaluations have so far received little attention for no good reason. Our approach focuses entirely on real-world applicability. Verifying prediction uncertainties and a model’s reliability are central to autonomous realworld applications. Our framework and code are available at: https://github.com/kav-institute/mdn_trajectory_forecasting.
Meywirth, S. ; Söllner, M.:Behavior Change Techniques in Digital Interventions for Health Behavior Change: A Taxonomy of Popular Mobile Applications.. In: Proceedings of the 57th Hawaii International Conference on System Sciences (HICSS) : Hawaii International Conference on System Sciences 2024 (HICSS-57), 2024
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Hille, Tobias ; Stubbemann, Maximilian ; Hanika, Tom: Reproducibility and Geometric Intrinsic Dimensionality: An Investigation on Graph Neural Network Research.. In: Transactions on Machine Learning Research (2024). — Reproducibility Certification
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Meywirth, S. ; Söllner, M.:Designing a Large Language Model-Based Coaching Intervention for Lifestyle Behavior Change.. In: Mandviwalla, M. ; Söllner, M. ; Tuunanen, T. (eds.): Design Science Research for a Resilient Future. Switzerland : Springer Nature, 2024, pp. 81–94
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Hanika, Tom ; Jäschke, Robert:A Repository for Formal Contexts.. In: Proceedings of the 1st International Joint Conference on Conceptual Knowledge Structures, 2024
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Data is always at the center of the theoretical development and investigation of the applicability of formal concept analysis. It is therefore not surprising that a large number of data sets are repeatedly used in scholarly articles and software tools, acting as de facto standard data sets. However, the distribution of the data sets poses a problem for the sustainable development of the research field. There is a lack of a central location that provides and describes FCA data sets and links them to already known analysis results. This article analyses the current state of the dissemination of FCA data sets, presents the requirements for a central FCA repository, and highlights the challenges for this.
Hanika, Tom ; Hille, Tobias:What is the Intrinsic Dimension of Your Binary Data? - and How to Compute it Quickly.. In: Cabrera, I. P. ; Ferré, S. ; Obiedkov, S. A. (eds.): Conceptual Knowledge Structures - First International Joint Conference, CONCEPTS 2024, Cádiz, Spain, September 9-13, 2024, Proceedings, Lecture Notes in Computer Science. vol. 14914 : Springer, 2024, pp. 97–112
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Schild, H.-H.:Art. 4 und 94 DSGVO, §§ 2, 46, 55, 56 und 57 BDSG (kommentiert seit der 1. Edition), Syst. E. Datenschutz bei Gerichten und Staatsanwaltschaften (kommentiert seit der 1. Edition), Art. 2 DGA (kommentiert seit der 45. Edition).. In: Beck’scher Online-Kommentar Datenschutzrecht. vol. 2. Auflage. 47. ed.. München : Verlag C.H.Beck, 2024
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Schild, H.-H.: Informationsanspruch der Personalvertretung nach IFG/Beteiligungsfähigkeit, Anmerkung zu OVG Berlin-Brandenburg, Beschluss v. 11.1.2024, 12 N 71/22. In: ZfPR (2024), pp. 36–38
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Schild, H.-H.: Wirksamer gerichtlicher Rechtsbehelf gegen eine Aufsichtsbehörde – Eine Betrachtung grenzüberschreitender Fälle. In: Datenschutz Nachrichten (2024), pp. 193–197
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Herde, Marek ; Huseljic, Denis ; Rauch, Lukas ; Sick, Bernhard:dopanim: A Dataset of Doppelganger Animals with Noisy Annotations from Multiple Humans.. In: Conference on Neural Information Processing Systems (NeurIPS 2024) Track on Datasets and Benchmarks, 2024, pp. 1–16
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Human annotators typically provide annotated data for training machine learning models, such as neural networks. Yet, human annotations are subject to noise, impairing generalization performances. Methodological research on approaches counteracting noisy annotations requires corresponding datasets for a meaningful empirical evaluation. Consequently, we introduce a novel benchmark dataset, dopanim, consisting of about 15,750 animal images of 15 classes with ground truth labels. For approximately 10,500 of these images, 20 humans provided over 52,000 annotations with an accuracy of circa 67%. Its key attributes include (1) the challenging task of classifying doppelganger animals, (2) human-estimated likelihoods as annotations, and (3) annotator metadata. We benchmark well-known multi-annotator learning approaches using seven variants of this dataset and outline further evaluation use cases such as learning beyond hard class labels and active learning. Our dataset and a comprehensive codebase are publicly available to emulate the data collection process and to reproduce all empirical results.
Heissler, Clara ; Ohly, Sandra ; Kern, Marcel: “Dear Manager, now I know what you expect”: Examining availability ambiguity in two studies. In: German Journal of Human Resource Management vol. 38 (2024), Nr. 3, pp. 259–282
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Hennrich, Jasmin ; Ritz, Eva ; Hofmann, Peter ; Urbach, Nils: Capturing artificial intelligence applications’ value proposition in healthcare – a qualitative research study. In: Capturing artificial intelligence applications’ value proposition in healthcare – a qualitative research study vol. 2024 (2024)
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Artificial intelligence (AI) applications pave the way for innovations in the healthcare (HC) industry. However, their adoption in HC organizations is still nascent as organizations often face a fragmented and incomplete picture of how they can capture the value of AI applications on a managerial level. To overcome adoption hurdles, HC organizations would benefit from understanding how they can capture AI applications’ potential. We conduct a comprehensive systematic literature review and 11 semi-structured expert interviews to identify, systematize, and describe 15 business objectives that translate into six value propositions of AI applications in HC. Our results demonstrate that AI applications can have several business objectives converging into risk-reduced patient care, advanced patient care, self-management, process acceleration, resource optimization, and knowledge discovery. We contribute to the literature by extending research on value creation mechanisms of AI to the HC context and guiding HC organizations in evaluating their AI applications or those of the competition on a managerial level, to assess AI investment decisions, and to align their AI application portfolio towards an overarching strategy.
Bittner, Eva A. C. ; Oeste-Reiß, Sarah ; Kirmse, Rosemarie ; Poser, Mathis ; Wiethof, Christina:Cognitive Load Theory Approach to Hybrid Intelligence: Tackling the Dual Aim of Task Performance and Learning.. In: Forty-Fifth International Conference on Information Systems (ICIS). Bangkok, Thailand, 2024
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Knowledge workers in information-rich work environments face cognitive challenges as they must deal with multitasking, interruptions, and time pressure. In domains like customer support with high turnover rates and increasingly diverse and complex products, employees need to rapidly develop from novices to experts while showing high task performance. The objective of this paper is to develop design knowledge for hybrid intelligence systems that tackle the dual aim of task performance and learning in knowledge work. We follow a design science research approach and build on theoretical and empirical knowledge on cognitive load theory. We propose a task-user matrix that classifies expertise and task difficulty to identify cognitive challenges. We develop four intervention strategies in the form of design patterns specified through design principles to address these challenges in system design. A pattern evaluation with system developers initially supports the effectiveness, plausibility and feasibility of our patterns.
Hirth, Johannes ; Horn, Viktoria ; Stumme, Gerd ; Hanika, Tom: Ordinal motifs in lattices. In: Information Sciences vol. 659 (2024), p. 120009
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Hirth, Johannes ; Hanika, Tom: The Geometric Structure of Topic Models, arXiv (2024)
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Heinisch, Judith S ; Kirchhoff, Jérôme ; Busch, Philip ; Wendt, Janine ; von Stryk, Oskar ; David, Klaus: Physiological data for affective computing in HRI with anthropomorphic service robots: the AFFECT-HRI data set. In: Scientific Data vol. 11 (2024), Nr. 1, p. 333
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Hänel, M. ; Wambsganss, T. ; Söllner, M.:Towards Effective AI-Driven Reading Assistants: A Design Science Exploration.. In: Thirty-Second European Conference on Information Systems (ECIS 2024), 2024, pp. 1–16
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Reinhard, Philipp ; Li, Mahei Manhai ; Peters, Christoph ; Leimeister, Jan Marco:LET EMPLOYEES TRAIN THEIR OWN CHATBOTS: DESIGN OF GENERATIVE AI-ENABLED DELEGATION SYSTEMS.. In: European Conference on Information Systems (ECIS). Paphos, Cyprus, 2024
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While chatbots can be implemented with very little effort, scaling and maintaining chatbots remains a challenge. This is crucial in knowledge-intensive customer service like IT support, where domain knowledge must stay current with the evolving IT landscape. Following design science research, we derive design principles for a generative AI (GPT4) enabled textual training data creation and curation system (T²C²) as part of a new class of systems – bot delegation systems. For the design of T²C², chatbot and domain expert viewpoints are integrated. We evaluate two instances of T²C², each with distinct degrees of human-ai delegation where employees act both as creators and curators of training data. The paper’s theoretical contribution is two-fold: (1) we present a novel kernel theory that represents the material characteristics of bot delegation systems by contextualizing the IS delegation framework to the self-determination theory; (2) the design and evaluation of T²C² as the built-and-evaluated artifact.
Heidecker, Florian ; El-Khateeb, Ahmad ; Bieshaar, Maarten ; Sick, Bernhard: Criteria for Uncertainty-based Corner Cases Detection in Instance Segmentation. In: arXiv e-prints (2024), p. arXiv:2404.11266
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The operating environment of a highly automated vehicle is subject to change, e.g., weather, illumination, or the scenario containing different objects and other participants in which the highly automated vehicle has to navigate its passengers safely. These situations must be considered when developing and validating highly automated driving functions. This already poses a problem for training and evaluating deep learning models because without the costly labeling of thousands of recordings, not knowing whether the data contains relevant, interesting data for further model training, it is a guess under which conditions and situations the model performs poorly. For this purpose, we present corner case criteria based on the predictive uncertainty. With our corner case criteria, we are able to detect uncertainty-based corner cases of an object instance segmentation model without relying on ground truth (GT) data. We evaluated each corner case criterion using the COCO and the NuImages dataset to analyze the potential of our approach. We also provide a corner case decision function that allows us to distinguish each object into True Positive (TP), localization and/or classification corner case, or False Positive (FP). We also present our first results of an iterative training cycle that outperforms the baseline and where the data added to the training dataset is selected based on the corner case decision function.
Hänel, Martin ; Wambsganss, Thiemo ; Söllner, Matthias: Towards Effective AI-Driven Reading Assistants: A Design Science Exploration. Thirty-Second European Conference on Information Systems, ECIS 2024 Proceedings (2024)
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Recent advancements in AI have led to the introduction of tools that support researchers in scientific reading. Tools such as SciSpace have come to the forefront to assist users in reading scientific texts. However, there is an insufficient theoretical foundation on how to design these reading assistants as well as no evidence of their effects, especially given the recent progress. Specifically, past literature lacks insights on evaluated user requirements and design principles for the design of computer-assisted reading systems. Addressing these challenges, we draw on Design Science Research (DSR) to derive and evaluate a set of five design principles for computer-assisted reading systems. Building on flow theory as our theoretical lens, we develop and perform a first proof-of-concept evaluation of a prototypical implementation of our principles as a computer-assisted reading artifact. Our design principles support researchers and practitioners on how to design, evaluate, and compare their AI-reading tools more effectively.
Herde, Marek ; Lührs, Lukas ; Huseljic, Denis ; Sick, Bernhard:Annot-Mix: Learning with Noisy Class Labels from Multiple Annotators via a Mixup Extension.. In: European Conference on Artificial Intelligence (ECAI) : IOS Press, 2024, pp. 2910–2918
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Training with noisy class labels impairs neural networks' generalization performance. In this context, mixup is a popular regularization technique to improve training robustness by making memorizing false class labels more difficult. However, mixup neglects that multiple annotators, e.g., crowdworkers, typically provide class labels. Therefore, we propose an extension of mixup, which handles multiple class labels per instance while considering which class label originates from which annotator. Integrated into our multi-annotator classification framework annot-mix, it performs superiorly to eleven (mostly state-of-the-art) approaches in an evaluation study with eleven datasets comprising noisy class labels from either human or simulated annotators. Our code is publicly available through our GitHub repository at https://github.com/ies-research/multi-annotator-machine-learning/tree/annot-mix.
Helmke, J. T.: Lootboxen in Videospielen aus jugendschutzrechtlicher Perspektive - Wie kann das Jugendschutzrecht seinem Namen gerecht werden?. In: Computer und Recht (2024), pp. 254–261
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Hegenberg, J. ; Schmidt, L.:Feldstudie zur Navigation autonomer mobiler Roboter an belebten öffentlichen Orten.. In: Gesellschaft für Arbeitswissenschaft e. V. (ed.): Arbeitswissenschaft in-the-loop - Mensch-Technologie-Integration und ihre Auswirkung auf Mensch, Arbeit und Arbeitsgestaltung: 70. Kongress der Gesellschaft für Arbeitswissenschaft (Stuttgart 2024). Sankt Augustin : GfA-Press, 2024, pp. 1–6 (D.6.4)
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Autonome mobile Roboter fahren zunehmend im öffentlichen Raum. Mögliche Konflikte zwischen der Fahrroute des Roboters und den Laufrouten der Passanten müssen so aufgelöst werden, dass die Passanten sich nicht gestört oder gefährdet fühlen und der Roboter dennoch effizient sein Ziel erreicht. Dazu wird eine Studie präsentiert, die nonverbale Kommunikation von Bewegungsabsichten mittels Blicken bzw. Kopfbewegungen im Feld erprobt. Bestehende Erkenntnisse aus künstlichen Szenarien und Laborstudien sowie zum menschlichen Verhalten werden im halböffentlichen Raum eines Einkaufszentrums einer Felderprobung unterzogen sowie vorläufige Ergebnisse präsentiert.
He, Yujiang ; Huang, Zhixin ; Vogt, Stephan ; Sick, Bernhard: PrOuD: Probabilistic Outlier Detection Solution for Time Series Analysis on Real-world Photovoltaic Inverters. In: Energies (MDPI) vol. 17, MDPI (2024), Nr. 1, p. 64
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Anomaly detection methods applied to time series are mostly viewed as a black box, which solely provides a deterministic answer to the detected target. Without a convincing explanation, domain experts can hardly trust the detection results and conduct a further time series diagnosis in real-world applications. To overcome the challenge, we mathematically analyzed the sources of anomalies and novelties in multivariate time series as well as their relationships from the perspective of Gaussian-distributed non-stationary noise. Furthermore, we proposed mathematical methods to generate artificial time series and synthetic anomalies, with the goal of solving the problem that it is difficult to train and evaluate models in real-world applications due to the lack of sufficient data. In addition, we designed extbfProbabilistic extbfOutlier extbfDetection (PrOuD), which is a general solution to provide interpretable detection results to assist domain experts in time series analysis. PrOuD can convert a predictive uncertainty of a trained model about a time series value into an estimated uncertainty of the detected outlier through Monte Carlo Estimation. The experimental results obtained on both artificial time series and real-world photovoltaic inverter data demonstrated that the proposed solution could detect emerging anomalies accurately and quickly. The implemented PrOuD demo case shows the potential to makes the detection results of the existing detection methods more convincing so that domain experts can more efficiently complete their tasks, such as time series diagnosis and anomalous pattern clustering.
Schlagwein, Daniel ; Currie, Wendy ; Leimeister, Jan Marco ; Willcocks, Leslie: Digital futures: Definition (what), importance (why) and methods (how). In: Journal of Information Technology (JIT) (2024), p. 7
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“Digital futures” as a research field that examines diverse, long-term future(s) scenarios influenced by digital technologies has been proposed in information systems. Here, based on the emerging literature on digital futures, we define what this term means, delineate it from related concepts such as digital transformation, articulate why the information systems field should take note and consider the study of digital futures, and provide an overview of approaches.
Magnussen, Birk Martin ; Möckel, Frank ; Jessulat, Maik ; Stern, Claudius ; Sick, Bernhard:Optical Detection of the Body Mass Index and Related Parameters Using Multiple Spatially Resolved Reflection Spectroscopy.. In: International Conference on Bioinformatics and Computational Biology (ICBCB) : IEEE, 2024, pp. 132–136
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Obesity is a common problem for many people. In order to assist people combating obesity, providing methods to quickly, easily, and inexpensively assess their body composition is important. This article investigates how noninvasive, optical sensors based on multiple spatially resolved reflection spectroscopy can be used to measure the body mass index and body composition parameters. Using machine learning to train continuous feature networks, it is possible to predict the body mass index of a subject, with a correlation of $$R=0.61$$ with $$p<0.0001$$. Similarly, the predicted body mass index shows correlations to both the subject's visceral fat ($$R=0.44,p=0.0023$$) and skeletal muscle mass index ($$R=0.52,p=0.0003$$), indicating that the trained neural network is capable of identifying both types of tissue. Strategies to independently detect either type of tissue are discussed.
Magnussen, Birk Martin ; Jessulat, Maik ; Stern, Claudius ; Sick, Bernhard:Adaptive Shapley: Using Explainable AI with Large Datasets to Quantify the Impact of Arbitrary Error Sources.. In: International Conference on Big Data Analytics (ICBDA) : IEEE, 2024, pp. 305–310
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Almost all sensors suffer from some level of uncertainty introduced from production inaccuracies. When the sensor data is processed by machine learning, quantifying the impact of such production inaccuracies on the output of the machine learning model becomes difficult. Certain neural network architectures, such as continuous feature networks, allow individual features and data to be omitted while still being able to correctly predict the result without the need for retraining. Such features can, for example, be individual channels of a sensor. This article proposes a method to use the capability to omit arbitrary features or sensor channels to calculate Shapley values for each sensor channel. These Shapley values represent the contribution of each individual channel to the measurement. They are defined using an arbitrary function called the ``value function''. If the value function is defined as the error of the current measurement, the Shapley values will represent the contribution of each sensor channel to the error of the measurement result. By calculating Shapley values like this for a large unlabelled dataset of measurements, it is possible to understand how much measurement error was introduced by which channel of which sensor in each measurement. Averaging the Shapley values for each sensor in the dataset will then result in a metric for each channel of that sensor, which represents a contribution to measurement errors. By comparing these values to any arbitrary quality metrics for the sensor channels obtained in a calibration process or similar step, it is possible to correlate and quantify which value in the quality metric will cause how much of a measurement error, or whether the quality metric is even relevant for the measurement accuracy. This article will show the efficacy and use case of the method on an example of the production and quality control of optical sensors based on multiple spatially resolved reflection spectroscopy.
Magnussen, Birk Martin:Using Machine Learning for Optical Spectroscopy Data Analysis - Processing Multiple Spatially Resolved Reflection Spectroscopy Data with Continuous Feature Networks, kassel university press, 2024
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Living a healthy lifestyle is an ever-increasing priority. To facilitate such a healthy lifestyle, accurate, quick, and inexpensive feedback on diet quality is essential. Sensors based on multiple spatially resolved reflection spectroscopy aim to provide such feedback. However, current data processing algorithms require highly accurate hardware. This requirement for accuracy causes production costs of the sensors to be too expensive, while the application scope is too small to be viable for end-customers. In order to keep production costs low, new algorithms capable of handling production inaccuracies need to be developed. This thesis proposes such a novel neural network architecture called a continuous feature network. In addition to being well suited for the sensor data at hand, continuous feature networks are capable of compensating for sensor inaccuracies. A continuous feature network is also capable of predicting results from an input sample with partially missing data, allowing it to ignore certain production defects. In this thesis, continuous feature networks are proposed, implemented, trained, and investigated using real-world sensor data. To improve training, a novel method for semi-supervised learning based on the available datasets is introduced and evaluated. Based on the ability of the continuous feature network to operate on partially missing data, a novel explainable AI method is introduced, allowing to accurately quantify possible error sources for a measurement. The newly introduced methods are applied to the processing of sensor data, relaxing the requirement for highly accurate sensor hardware while increasing prediction accuracy. This enables a significant reduction in production rejects and thus sensor cost, while also allowing for the detection and prediction of new vitality parameters.
Schild, H.-H. ; Paal, B. P.: Hat der EuGH den Schufascore für unzulässig erklärt? Eine Bewertung aus der Perspektive des vorlegenden Gerichts und der Wissenschaft. In: Privacy in Germany (2024), pp. 90–97
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Herde, Marek ; Pham, Minh Tuan ; Tharwat, Alaa ; Sick, Bernhard:Tutorial: Interactive Adaptive Learning.. In: Workshop on Interactive Adapative Learning (IAL), ECML PKDD, 2024, pp. 1–6
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We summarize the contents of the tutorial we present as a part of the 8th Interactive Adaptive Learning workshop. This workshop is co-located with the ECML-PKDD conference, where it takes place on September 9th, 2024 in Vilnius, Lithuania.
Schild, H.-H.: Datenverarbeitung bei Ordnungswidrigkeitenverfahren (OWi-Verfahren) – eine kritische Überlegung zu den (fehlenden) Rechtsgrundlagen. In: Datenschutz Nachrichten (2024), pp. 206–209
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Schild, H.-H.: DS-GVO gilt auch für Untersuchungsausschüsse, Anmerkung zu EuGH, Urteil vom 16.1.2024 – C-33/22. In: Zeitschrift für Datenschutz (2024), pp. 269–273
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Schaller, T. ; Schild, H.-H.: Die Verarbeitung von Beschäftigtendaten in Systemen zur Angriffserkennung. In: Neue Zeitschrift für Arbeitsrecht (2024), pp. 505–513
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Ochs, Carsten:The DataEconomy@Home: The Private Sphere, Privacy, and the Embedding of Artificial Intelligence Systems into Everyday Life as an Expansion of Economic Data Grabbing.. In: Hector, T. ; Hoffmann, D. ; Waldecker, D. (eds.): Voice Assistants in Private Homes. Media, Data and Language in Interaction and Discourse. Bielefeld : transcript, 2024
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Hahn, Paul ; Huseljic, Denis ; Herde, Marek ; Sick, Bernhard:General Reusability: Ensuring Long-Term Benefits of Deep Active Learning.. In: Workshop on Interactive Adapative Learning (IAL), ECML PKDD, 2024, pp. 33–46
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Deep active learning (DAL) provides a promising framework for reducing labeling costs for data-hungry deep neural networks. In DAL research, experiments are evaluated based on the performance of the model that is responsible for querying data, which can be interpreted as a model-centric evaluation. However, the data queried by DAL should be model agnostic so that new models can be effectively trained on it. An example can be derived from the rapid progress in deep learning, where new architectures are proposed in quick succession. Naturally, we want to employ these new and more effective models while still using the queried data from DAL. This results in the need to ensure high performance for both current and future models, which we refer to as reusability. In line with this topic, we propose general reusability, a novel, data-centric evaluation metric that measures the long-term value of queried data. Our experiments demonstrate that the current evaluation protocol in DAL research does not assess the reusability of data and that GR can fill this gap.
Casper, F.:Rechtliche Chancen und Grenzen der automatisierten Entscheidungsunterstützung und Entscheidungsfindung in der Medizin, Der Elektronische Rechtsverkehr (Band 50). Baden-Baden : Nomos Verlagsgesellschaft, 2024 — ISBN 978-3-7560-1070-7
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Ritz, Eva ; Freise, Leonie ; Elshan, Edona ; Rietsche, Roman ; Bretschneider, Ulrich:What to Learn Next? Designing Personalized Learning Paths for Re-&Upskilling in Organizations.. In: Hawaii International Conference on System Sciences (HICSS). Waikiki, Hawaii, USA, 2024
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The fast-paced acceleration of digitalization requires extensive re-&upskilling, impacting a significant proportion of jobs worldwide. Technology-mediated learning platforms have become instrumental in addressing these efforts, as they can analyze platform data to provide personalized learning journeys. Such personalization is expected to increase employees’ empowerment, job satisfaction, and learning outcomes. However, the challenge lies in efficiently deploying these opportunities using novel technologies, prompting questions about the design and analysis of generating personalized learning paths in organizational learning. We, therefore, analyze and classify recent research on personalized learning paths into four major concepts (learning context, data, interface, and adaptation) with ten dimensions and 34 characteristics. Six expert interviews validate the taxonomy’s use and outline three exemplary use cases, undermining its feasibility. Information Systems researchers can use our taxonomy to develop theoretical models to study the effectiveness of personalized learning paths in intra-organizational re-&upskilling.
Pfeiffer, L.:Datenzugang in der Plattformökonomie: Regulierungsinstrumente in P2B-VO, DMA und DSA.. In: Buchheim, J. ; Kraetzig, V. ; Mendelsohn, J. K. ; Steinrötter, B. (eds.): Plattformen. Grundlagen und Neuordnung des Rechts digitaler Plattformen. Baden-Baden, 2024, pp. 53–76
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Ritz, Eva ; Freise, Leonie ; Li, Mahei:Offloading to Digital Minds: How Generative AI Can Help to Craft Jobs.. In: Proceedings NeuroIS Retreat 2024, 2024
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In the era of ChatGPT and other generative AI tools, white-collar workers are given tremendous potential to simplify everyday tasks. Within vocational psychology, this phenomenon is known as job crafting. We conduct an electroencephalography-based mixed-factorial experiment to explore the underlying mechanisms of how and why the use of generative AI tools can lead to job crafting. Relying on cognitive load theory and resource demand theory, we measure the effects of ChatGPT use and prompt engineering guidance in strategic thinking tasks. We hypothesize that individuals who use ChatGPT without and with prompting examples rely on cognitive offloading to avoid cognitive effort, affecting resource demands. An initial evaluation of our experiment task design provides promising results. We plan our experiment with participants who are familiar with executive assistant tasks. Our expected results contribute to the ongoing discussion of ICT-enabled job crafting and provide empirical-driven explanations of AI-enabled job crafting mechanisms.
Ritz, Eva ; Joas, Adrian ; Wambsganss, Thiemo ; Rietsche, Roman ; Leimeister, Jan Marco: How a Swiss luxury retailer implements process mining to improve data-driven customer excellence. In: Journal of Information Technology Teaching Cases (2024), pp. 1–9
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Ritz, Eva ; Mühlheim, Joël ; Freise, Leonie Rebecca ; Li, Mahei Manhai:Prompting for Perks: Enhancing Generative-AI Enabled Job Crafting in Knowledge Work.. In: Australasian Conference on Information Systems (ACIS). Canberra, Australia, 2024
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The increasing use of Generative AI (GAI) has captivated industries seeking to enhance productivity, particularly among white-collar workers. Drawing upon job crafting theory from occupational psychology, prior research suggests that GAI applications can also enhance employee well-being by modifying their work environment for self-perceived benefits. However, the conditions facilitating job crafting behaviours in this context remain underexplored. This study posits that prompt engineering can promote job crafting behaviour. To explore this, we conducted a between-subjects online experiment, manipulating a prompt support intervention through worked examples. Additionally, we examined the moderating role of participants' AI literacy in influencing the effectiveness of the prompt intervention. A pre-test with 42 participants indicated that prompt support can increase GAI-enabled job crafting, but only for those with high AI literacy. The findings underscore the importance of AI literacy and prompt engineering in optimising job crafting behaviour, advocating for organisational training programs to support these skills.
Pfeiffer, L:Big-Tech-Data: Zugangsnotwendigkeit und Zugangsausgestaltung nach dem Digital Markets Act.. In: Augsberg, S. ; Düwell, M. ; Müller, B. (eds.): Datenzugangsregeln. Zwischen Freigabe und Kontrolle : Campus Verlag, 2024, pp. 101–136
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Panahi, T. ; Schindler, S.: Die Verordnung über die Transparenz und das Targeting politischer Werbung – ein Überblick. In: Kommunikation & Recht (2024), pp. 621–626
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Ritz, Eva:Balancing Bytes with Brains: Exploring the Role of Learners’ Control in Personalized Learning Tasks.. In: European Conference on Information Systems (ECIS). Paphos, Cyprus, 2024
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The increasing prevalence of artificial intelligence (AI)-based learning systems unleashes new potentials in designing personalized learning experiences that enhance learning outcomes. However, prior research indicates that such systems can negatively impact engagement due to issues in human information processing. This study examines whether giving learners control over task difficulty selection in personalized learning systems can mitigate these effects. A laboratory within-subjects experiment involving 80 participants explored how control over personalized vocabulary learning affects learning performance and autonomy satisfaction. As such a control feature may lead to deeper information processing, I investigate the mediating effect of cognitive workload on the main effect. The study aims to contribute to human-AI interaction literature by shedding light on the importance of control in personalized system design and investigating its effects on cognitive workload, overall task performance, and autonomy satisfaction.
Panahi, T. ; Jansen, C. ; Ancina, A. ; Bader, K. ; Choi, J.-E. ; Hornung, G. ; Krämer, N. ; Rinsdorf, L. ; et al.:Desinformation in Messenger-Diensten. Aktuelle Herausforderungen & Handlungsempfehlungen für rechtliche und gesellschaftliche Maßnahmen, Policy Paper : Duisburg-Essen, 2024
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Böning, F. ; Riechert, A:Der europäische Gesundheitsdatenraum: Ein Paradigmenwechsel in der Verarbeitung von Gesundheitsdaten?. In: Augsberg, S. ; Düwell, M. ; Müller, B. (eds.): Datenzugangsregeln. Zwischen Freigabe und Kontrolle. Frankfurt/New York, 2024, pp. 215–257
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Böning, F. ; Laufs, U:Betroffenenrechte in der digitalen Selbstvermessung.. In: Friedewald, M. ; Roßnagel, A. ; Geminn, C. ; Karaboga, M. ; Schindler, S. (eds.): Data Sharing – Datenkapitalismus by Default?. Baden-Baden : Nomos, 2024 — ISBN 978-3-7560-1266-4, pp. 301–322
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Paganella, V. ; Paiva, E. B:The (un)lawful processing of manifestly made public personal data by the data subject for political advertising purposes.. In: Klein, M. ; Krupka, D. ; Winter, C. ; Gergeleit, M. ; Martin, L. (eds.): INFORMATIK 2024: Lock-in or log out? Wie digitale Souveränität gelingt. Bonn : Gesellschaft für Informatik e.V., 2024 — ISBN 978-3-88579-746-3, pp. 231–245
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Elsaka, Basma ; Yang, Xiaohui ; Kästner, Philipp ; Dingel, Kristina ; Sick, Bernhard ; Lehmann, Peter ; Buhmann, Stefan Yoshi ; Hillmer, Hartmut: Casimir Effect in MEMS: Materials, Geometries, and Metrologies—A Review. In: Materials vol. 17 (2024), Nr. 14, p. 3393
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Casimir force densities, i.e., force per area, become very large if two solid material surfaces come closer together to each other than 10 nm. In most cases, the forces are attractive. In some cases, they can be repulsive depending on the solid materials and the fluid medium in between. This review provides an overview of experimental and theoretical studies that have been performed and focuses on four main aspects: (i) the combinations of different materials, (ii) the considered geometries, (iii) the applied experimental measurement methodologies and (iv) a novel self-assembly methodology based on Casimir forces. Briefly reviewed is also the influence of additional parameters such as temperature, conductivity, and surface roughness. The Casimir effect opens many application possibilities in microelectromechanical systems (MEMS) and nanoelectromechanical systems (NEMS), where an overview is also provided. The knowledge generation in this fascinating field requires interdisciplinary approaches to generate synergetic effects between technological fabrication metrology, theoretical simulations, the establishment of adequate models, artificial intelligence, and machine learning. Finally, multiple applications are addressed as a research roadmap.
Elshan, Edona ; Bruhin, Olivia ; Schmidt, Niklas ; Simeon, Dominik ; Kedziora, Damian:Unveiling Challenges and Opportunities in Low Code Development Platforms: A StackOverflow Analysis.. In: Proceedings of the 57th Hawaii International Conference on System Sciences (HICSS). O’ahu, Hawaii, 2024
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As the rapidly expanding digital transformations at multiple organizations require development of growing number of software solutions, low code development platforms (LCDPs) started to be widely used by pretrained business users, in such use-cases as process automation and rapid application development. Our study explores the challenges of LCDPs use for developers, by investigating 30 000 of their posts at one of the most prominent fora StackOverflow. It is conducted with text-mining approaches, primarily Latent Dirichlet Allocation (LDA), aiming to identify challenges for users of LCDPs. As they were from the areas of visualization, third-party integration, database and table management, datatype conversion, programming languages, and file handling, we further discussed them to propose possible enhancements for users of LCDPs.
Burkhardt, M. ; Kropf, J. ; Ochs, C. ; Seitz, T. (eds.):Digital Culture & Society - Special Issue ‚Frictions: Conflicts, Controversies and Design Alternatives in Digital Valuation.‘. Bielefeld : transcript, 2024
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Civitarese, Gabriele ; Hirmer, Pascal ; Indulska, Jadwiga ; Bettini, Claudio ; Nicklas, Daniela ; Riboni, Daniele ; Stuckenschmidt, Heiner ; Wieland, Matthias ; et al.:CoMoRea 2024: 20th Workshop on Context and Activity Modeling and Recognition-Welcome and Committees.. In: 2024 IEEE International Conference on Pervasive Computing and Communications Workshops and other Affiliated Events, PerCom Workshops 2024 : Institute of Electrical and Electronics Engineers Inc., 2024 — ISBN 9798350304367, pp. 19–20
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Draude, Claude ; Engert, Simon ; Hess, Thomas ; Hirth, Johannes ; Horn, Viktoria ; Kropf, Jonathan ; Lamla, Jörn ; Stumme, Gerd ; et al. ; Friedewald, M. ; Roßnagel, A. ; Geminn, C. ; Karaboga, M. (eds.):Verrechnung – Design – Kultivierung: Instrumentenkasten für die Gestaltung fairer Geschäftsmodelle durch Ko-Valuation, Plattform Privatheit ( Nr. 1). Karlsruhe : Fraunhofer-Institut für System- und Innovationsforschung ISI, 2024
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Ausgehend von der Beobachtung, dass gegenwärtige Herausforderungen der Datenökonomie neben der angemessenen Verwendung von Daten auch Aspekte der gerechten Verteilung von Erlösen, die Manipulation durch Algorithmen oder die Beeinflussung der politischen Meinungsbildung durch Plattformen betreffen, lotet das vorliegende White Paper Möglichkeiten der fairen Gestaltung datenökonomischer Geschäftsmodelle aus. Die erarbeiteten Instrumente und Analysen zur Unterstützung einer fairen Geschäftsmodellgestaltung basieren auf Ergebnissen des vom BMBF geförderten Projekts „Faire digitale Dienste: Ko-Valuation in der Gestaltung datenökonomischer Geschäftsmodelle (FAIRDIENSTE)“. Um ein analytisch gehaltvolles Fairness-Verständnis zu entwickeln, das auch für die konkrete datenökonomische Gestaltungspraxis innovative und wirtschaftlich tragfähige Alternativen zu gegenwärtigen Geschäftsmodellen freizulegen vermag, wurden in FAIRDIENSTE verschiedene Ansätze der kooperativen Wertvermittlung (im Folgenden auch „Ko-Valuation“) erprobt, die wir als Verrechnung, Design und Kultivierung bezeichnen: Erstens wurde untersucht, inwiefern sich unterschiedliche Werte in eine ökonomische Sprache der Preise übersetzen und fair verrechnen lassen (Verrechnung). Zweitens wurde herausgearbeitet, wie Wertkonflikte durch technische und regulative Designs kanalisiert werden können (Design). Drittens wurde geprüft, inwiefern die öffentliche Aushandlung von Wertkonflikten, z.B. über Social-Media-Elemente, gefördert werden kann, um zu einer Kultur der Fairness unter den Nutzerinnen und Nutzern beizutragen (Kultivierung). Diese Perspektiven wurden anhand der Fairness-Herausforderungen des digitalen Journalismus geschärft und auf ihre Tragfähigkeit geprüft. Darüber hinaus beanspruchen die folgenden Überlegungen und Instrumente zur fairen Geschäftsmodellgestaltung aber auch auf andere gesellschaftliche Domänen anwendbar zu sein.
Budde, Katharina B. ; Rellstab, Christian ; Heuertz, Myriam ; Gugerli, Felix ; Hanika, Tom ; Verdú, Miguel ; Pausas, Juli G. ; González-Martínez, Santiago C.: Divergent selection in a Mediterranean pine on local spatial scales. In: Journal of Ecology vol. 112 (2024), Nr. 2
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Abstract The effects of selection on an organism's genome are hard to detect on small spatial scales, as gene flow can swamp signatures of local adaptation. Therefore, most genome scans to detect signatures of environmental selection are performed on large spatial scales; however, divergent selection on the local scale (e.g. between contrasting soil conditions) has also been demonstrated, in particular for herbaceous plants. Here, we hypothesised that in topographically complex landscapes, microenvironment variability is strong enough to leave a selective footprint in the genomes of long-lived organisms. To test this, we investigated paired south- versus north-facing Pinus pinaster stands on the local scale, with trees growing in close vicinity (≤820 m distance between paired south- and north-facing stands), in a Mediterranean mountain area. While trees on north-facing slopes experience less radiation, trees on south-facing slopes suffer from especially harsh conditions, particularly during the dry summer season. Two outlier analyses consistently revealed five putatively adaptive loci (out of 4034), in candidate genes two of which encoded non-synonymous substitutions. Additionally, one locus showed consistent allele frequency differences in all three stand pairs indicating divergent selection despite high gene flow on the local scale. Permutation tests demonstrated that our findings were robust. Functional annotation of these candidate genes revealed biological functions related to abiotic stress response, such as water availability, in other plant species. Synthesis. Our study highlights how divergent selection in heterogeneous microenvironments shapes and maintains the functional genetic variation within populations of long-lived forest tree species, being the first to focus on adaptive genetic divergence between south- and north-facing slopes within continuous forest stands. This is especially relevant in the current context of climate change, as this variation is at the base of plant population responses to future climate.
Reinhard, Philipp ; Neis, Nicolas ; Kolb, Lisa ; Wischer, Dennis ; Li, Mahei Manhai ; Winkelmann, Axel ; Teuteberg, Frank ; Lechner, Ulrike ; et al.:Augmenting Frontline Service Employee Onboarding via Hybrid Intelligence: Examining the Effects of Different Degrees of Human-GenAI Interaction.. In: Mandviwalla, M. Y. ; Söllner, M. ; Tuunanen, T. (eds.): International Conference on Design Science Research in Information Systems and Technology (DESRIST 2024). Trollhättan, Sweden, 2024
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High turnover rates within help desks, caused by excessive workloads, make the efficient onboarding of novices a persistent and recurring challenge. Generative artificial intelligence (GenAI) possesses the potential to augment novice frontline service employees (FSE) during their onboarding phase. However, there is a lack of knowledge on how to design the interaction of FSE and GenAI. Thus, following design science research (DSR), we propose a conversational (co-)agent that leverages the capabilities of large language models and the concept of hybrid intelligence to augment novice FSE. To examine the interaction between novices and GenAI given various task difficulties, we derive and instantiate two hybrid intelligence meta-designs - a supporter that provides recommendations and a collaborator that allows for prompting the coagent. The results from an online experiment with 75 laypeople show that novices interact with GenAI more frequently and show a higher engagement, especially in difficult tasks. Overall, we uncover a paradox: Despite an increased interaction and a greater time investment, FSEs experience a lower perceived workload with a GenAI-based collaborator. From that, we derive implications for designing employee-facing co-agents in customer services.
Reinhard, Philipp ; Li, Mahei Manhai ; Peters, Christoph ; Leimeister, Jan Marco:Generative AI in Customer Support Services: A Framework for Augmenting the Routines of Frontline Service Employees.. In: Hawaii International Conference on System Sciences (HICSS). Waikiki, Hawaii, USA, 2024
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Customer support service employees are facing an increased workload, while artificial intelligence (AI) appears to possess the potential to change the way we work. With the advent of modern types of generative AI, new opportunities to augment frontline service employees have emerged. However, little is known about how to integrate generative AI in customer support service organizations and purposefully change service employee work routines. Following multi-method qualitative research, we performed a literature review, conducted workshops, and interviewed IT support agents, managers, and AI experts. Thereby, we examine AI augmentation for frontline service employees in the context of IT support to carve out where and how GenAI can be leveraged to develop more efficient and higher-quality customer support. Our resulting framework reveals that especially adapting solutions and retaining knowledge is subject to a high degree of AI augmentation.
Dickhaut, E. ; Janson, A. ; Söllner, M. ; Leimeister, J. M.: Lawfulness by design – development and evaluation of lawful design patterns to consider legal requirements. In: Eur. J. Inf. Syst. vol. 33 (2024), Nr. 4, pp. 441–468
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Deinzer, Renate ; Eidenhardt, Zdenka ; Sohrabi, Keywan ; Stenger, Manuel ; Kraft, Dominik ; Sick, Bernhard ; Götz-Hahn, Franz ; Bottenbruch, Carlotta ; et al.: It is the habit not the handle that affects tooth brushing - a randomised counterbalanced cross over study with young and healthy adults. In: BMC Oral Health vol. 24, Springer (2024), Nr. 1, p. 757
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Objective To assess the effect of the toothbrush handle on video-observed toothbrushing behaviour and toothbrushing effectiveness. Methods This is a randomized counterbalanced cross-over study. N = 50 university students and employees brushed their teeth at two occasions, one week apart, using either a commercial ergonomically designed manual toothbrush (MT) or Brushalyze V1 (BV1), a manual toothbrush with a thick cylindrical handle without any specific ergonomic features. Brushing behaviour was video-analysed. Plaque was assessed at the second occasion immediately after brushing. Participants also rated their self-perceived oral cleanliness and directly compared the two brushes regarding their handling and compared them to the brushed they used at home. Results The study participants found the BV1 significantly more cumbersome than the M1 or their brush at home. (p < 0.05). However, correlation analyses revealed a strong consistency of brushing behavior with the two brushes (0.71 < r < 0.91). Means differed only slightly (all d < 0.36). These differences became statistically significant only for the brushing time at inner surfaces (d = 0.31 p = 0.03) and horizontal movements at inner surfaces (d = 0.35, p = 0.02). Plaque levels at the gingival margins did not differ while slightly more plaque persisted at the more coronal aspects of the crown after brushing with BV1 (d = 0.592; p 0.042). Discussion The results of the study indicate that the brushing handle does not play a major role in brushing behavior or brushing effectiveness.
Decke, Jens ; Wünsch, Olaf ; Sick, Bernhard ; Gruhl, Christian:From Structured to Unstructured: A Comparative Analysis of Computer Vision and Graph Models in solving Mesh-based PDEs.. In: International Conference on Architecture of Computing Systems (ARCS) : Springer, 2024, pp. 82–96
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This article investigates the application of computer vision and graph-based models in solving mesh-based partial differential equations within high-performance computing environments. Focusing on structured, graded structured, and unstructured meshes, the study compares the performance and computational efficiency of three computer vision-based models against three graph-based models across three datasets. The research aims to identify the most suitable models for different mesh topographies, particularly highlighting the exploration of graded meshes, a less studied area. Results demonstrate that computer vision-based models, notably U-Net, outperform the graph models in prediction performance and efficiency in two (structured and graded) out of three mesh topographies. The study also reveals the unexpected effectiveness of computer vision-based models in handling unstructured meshes, suggesting a potential shift in methodological approaches for data-driven partial differential equation learning. The article underscores deep learning as a viable and potentially sustainable way to enhance traditional high-performance computing methods, advocating for informed model selection based on the topography of the mesh.
Decke, Jens ; Jenß, Arne ; Sick, Bernhard ; Gruhl, Christian:An Efficient Multi Quantile Regression Network with Ad Hoc Prevention of Quantile Crossing.. In: International Conference on Architecture of Computing Systems (ARCS) : Springer, 2024, pp. 51–66
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This article presents the Sorting Composite Quantile Regression Neural Network (SCQRNN), an advanced quantile regression model designed to prevent quantile crossing and enhance computational efficiency. Integrating ad hoc sorting in training, the SCQRNN ensures non-intersecting quantiles, boosting model reliability and interpretability. We demonstrate that the SCQRNN not only prevents quantile crossing and reduces computational complexity but also achieves faster convergence than traditional models. This advancement meets the requirements of high-performance computing for sustainable, accurate computation. In organic computing, the SCQRNN enhances self-aware systems with predictive uncertainties, enriching applications across finance, meteorology, climate science, and engineering.
Decke, Jens ; Gerland, Florian ; Schomberg, Thomas ; Wünsch, Olaf ; Sick, Bernhard ; Gruhl, Christian:Self-Aware Control for Autonomous Underwater Vehicles.. In: Workshop on self-improving system integration (SISSY), ACSOS : IEEE, 2024, pp. 13–14
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We present a concept to research the implementation of a self-aware control system for underwater cleaning robots. Multiple robots cooperate as a swarm to clean the hull of large container ships while in transit. We utilise physics-informed neural networks to implement an autonomous steering system and combine it with a deep reinforcement learning-based decision and scheduling system. This approach ensures efficient navigation and cleaning operations, adapting to dynamic environmental conditions in real-time. The proposed control system allows the cleaner robots, to enhance fuel efficiency, reduce CO2 emissions, and minimize the environmental impact of maritime transportation.
David, Klaus ; Dobbins, Chelsea ; Heinisch, Judith ; Okoshi, Tadashi ; Dupré, Damien ; Gaggioli, Andrea ; Gao, Nan ; Peltonen, Ella ; et al.:EmotionAware 2024: Eighth International Workshop on Emotion Awareness for Pervasive Computing Beyond Traditional Approaches-Welcome and Committees.. In: 2024 IEEE International Conference on Pervasive Computing and Communications Workshops and other Affiliated Events, PerCom Workshops 2024 : Institute of Electrical and Electronics Engineers Inc., 2024 — ISBN 9798350304367, pp. 23–24
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Draude, Claude ; Dürrschnabel, Dominik ; Hirth, Johannes ; Horn, Viktoria ; Kropf, Jonathan ; Lamla, Jörn ; Stumme, Gerd ; Uhlmann, Markus:Conceptual Mapping of Controversies.. In: Cabrera, I. P. ; Ferré, S. ; Obiedkov, S. (eds.): Conceptual Knowledge Structures. vol. 14914. Cham : Springer Nature Switzerland, 2024 — ISBN 978-3-031-67868-4, pp. 201–216
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With our work, we contribute towards a qualitative analysis of the discourse on controversies in online news media. For this, we employ Formal Concept Analysis and the economics of conventions to derive conceptual controversy maps. In our experiments, we analyze two maps from different news journals with methods from ordinal data science. We show how these methods can be used to assess the diversity, complexity and potential bias of controversies. In addition to that, we discuss how the diagrams of concept lattices can be used to navigate between news articles.
Reinke, Kathrin ; Ohly, Sandra: Examining the training design and training transfer of a boundary management training: A randomized controlled intervention study. In: Journal of Occupational and Organizational Psychology (2024)
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Reuse, Matthias ; Amende, Karl ; Simon, Martin ; Sick, Bernhard: Exploring 3D Object Detection for Autonomous Factory Driving: Advanced Research on Handling Limited Annotations with Ground Truth Sampling Augmentation. In: Computer Sciences & Mathematics Forum vol. 9, MDPI (2024), Nr. 1, p. 5
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Autonomously driving vehicles in car factories and parking spaces can represent a competitive advantage in the logistics industry. However, the real-world application is challenging in many ways. First of all, there are no publicly available datasets for this specific task. Therefore, we equipped two industrial production sites with up to 11 LiDAR sensors to collect and annotate our own data for infrastructural 3D object detection. These form the basis for extensive experiments. Due to the still limited amount of labeled data, the commonly used ground truth sampling augmentation is the core of research in this work. Several variations of this augmentation method are explored, revealing that in our case, the most commonly used is not necessarily the best. We show that an easy-to-create polygon can noticeably improve the detection results in this application scenario. By using these augmentation methods, it is even possible to achieve moderate detection results when only empty frames without any objects and a database with only a few labeled objects are used.
Dinkelaker Jörg ; Wenten, Klara-Aylin:Translations and Participation. Cross-Disciplinary Perspectives. Bielefeld : transcript, 2024
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Reichert, Hannes ; Hetzel, Manuel ; Hubert, Andreas ; Doll, Konrad ; Sick, Bernhard:Sensor Equivariance: A Framework for Semantic Segmentation with Diverse Camera Models.. In: Workshop on Omnidirectional Computer Vision (OmniCV), ICVPR : IEEE, 2024, pp. 1254–1261
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Objects are represented differently in projection-based sensors such as cameras depending on sensor resolution, field of view, and distortion, leading to distorted physical and geometric properties. As a result, sensor data process- ing depend on these properties. With the large variations of sensors on the market, an equivariant representation and suitable processing are necessary to become independent of the sensor used. In this work, we propose an extension of conventional image data by an additional channel in which the associated projection properties are encoded. Further- more, we introduce a SensorConv layer as an extension to the conventional convolution layer. SensorConv enable us- ing projection properties in convolutional neural networks. To that end, we propose an architecture for using the Sen- sorConv layer in the Detectron2 [21] framework. We col- lected a dataset of equirectangular images for our experi- ments with the CARLA [3] simulator. To analyze multiple sensor models (i.e., sensor intrinsic), we created an aug- mentation method to emulate a high variability of sensors from the collected equirectangular panoramas. In our ex- periment, we show that our method can generalize better across different camera sensors.
Draude, Claude:Digital Transformation Through the Lens of Intersectional Gender Research Challenges and Needs for Action.. In: Werthner, H. ; Ghezzi, C. ; Kramer, J. ; Nida-Rümelin, J. ; Nuseibeh, B. ; Prem, E. ; Stanger, A. (eds.): Introduction to Digital Humanism: A Textbook. Cham : Springer Nature Switzerland, 2024 — ISBN 978-3-031-45304-5, pp. 83–97
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In recent years, digital technology has been discussed both in its potential to promote or to demote gender equity. This field of tension, between empowerment and threat of amplifying inequalities, is explored in this contribution. Moreover, this chapter views digital humanism through the lens of intersectional gender research. After discussing the historic relation between gender and humanism, concepts and terminology of gender research and feminist theory are explained in more detail. Following this, the interaction of gender and technology is illustrated through examples. Finally, the lessons learned part contains suggestions and calls for action important for a more inclusive and equitable digital transformation.
Draude, Claude: Peer Review Report For: Co-creation of the Digital Democracy and Data Commons Manifesto: alternative sociotechnical visions of data [version 2; peer review: 3 approved, 1 approved with reservations, 1 not approved]. In: Open Res Europe vol. 4 (2024), Nr. 45
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Draude, Claude ; Dürrschnabel, Dominik ; Hirth, Johannes ; Horn, Viktoria ; Kropf, Jonathan ; Lamla, Jörn ; Stumme, Gerd ; Uhlmann, Markus:Conceptual Mapping of Controversies.. In: Cabrera, I. P. ; Ferré, S. ; Obiedkov, S. (eds.): Conceptual Knowledge Structures. Cham : Springer Nature Switzerland, 2024 — ISBN 978-3-031-67868-4, pp. 201–216
- [ Abstract ]
- [ BibSonomy-Post ]
With our work, we contribute towards a qualitative analysis of the discourse on controversies in online news media. For this, we employ Formal Concept Analysis and the economics of conventions to derive conceptual controversy maps. In our experiments, we analyze two maps from different news journals with methods from ordinal data science. We show how these methods can be used to assess the diversity, complexity and potential bias of controversies. In addition to that, we discuss how the diagrams of concept lattices can be used to navigate between news articles.
Bunse, M. ; Herde, M. ; Krempl, G. ; Lemaire, V. ; Tharwat, A. ; Pham, M. T. ; Saadallah, A. (eds.):Workshop on Interactive Adaptive Learning (IAL), ECML PKDD, CEUR Workshop Proceedings. vol. 3770, 2024
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Ohly, Sandra ; Sedefoglu, Didem:Callcenter.. In: Arbeitsgestaltung in Zeiten von Digitalisierung und Homeoffice. Implikationen für Lernen, Leistung und Work-Life Balance. Berlin, Heidelberg : Springer, 2024, pp. 73–78
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Haenel, M. ; Wambsganss, T. ; Söllner, M.:The Power of Reading Support for Learners: A State-of-the-Art Analysis of Computer-Assisted Reading from an Information Systems Perspective.. In: Hawaii International Conference on System Sciences. Maui, Hawaii, USA, 2024
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Reading and synthesizing scientific papers is a crucial skill for students. However, many students in higher education struggle to effectively comprehend scientific texts. To address this challenge, research has leveraged computer-assisted reading (CAR) systems to improve students' reading comprehension abilities at scale. However, the research and application of CAR in higher education still lack an organized overview and clear terminology due to the multidisciplinary character of the research field (e.g., Education didactic, Human-Computer Interaction, or Information Systems). Therefore, we perform a systematic literature review on CAR from an interdisciplinary Information Systems perspective. We take the socio-technical systems theory as a lens to organize, summarize past literature as well to identify white spots for a future research agenda. The main contributions of this paper are the synthesis and consolidation of CAR to create a basis for all researchers investigating the research field of CAR in higher education.
Botache, Diego ; Decke, Jens ; Ripken, Winfried ; Dornipati, Abhinay ; Götz-Hahn, Franz ; Ayeb, Mohamed ; Sick, Bernhard: Enhancing Multi-Objective Optimization through Machine Learning-Supported Multiphysics Simulation. In: arXiv e-prints (2024), p. arXiv:2309.13179v2
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This paper presents a methodological framework for training, self-optimising, and self-organising surrogate models to approximate and speed up multiobjective optimisation of technical systems based on multiphysics simulations. At the hand of two real-world datasets, we illustrate that surrogate models can be trained on relatively small amounts of data to approximate the underlying simulations accurately. Including explainable AI techniques allow for highlighting feature relevancy or dependencies and supporting the possible extension of the used datasets. One of the datasets was created for this paper and is made publicly available for the broader scientific community. Extensive experiments combine four machine learning and deep learning algorithms with an evolutionary optimisation algorithm. The performance of the combined training and optimisation pipeline is evaluated by verifying the generated Pareto-optimal results using the ground truth simulations. The results from our pipeline and a comprehensive evaluation strategy show the potential for efficiently acquiring solution candidates in multiobjective optimisation tasks by reducing the number of simulations and conserving a higher prediction accuracy, i.e., with a MAPE score under 5% for one of the presented use cases.
Braun, Martin ; Gruhl, Christian ; Hans, Christian Andreas ; Härtel, Philipp ; Scholz, Christoph ; Sick, Bernhard ; Siefert, Malte ; Steinke, Florian ; et al.:Predictions and Decision Making for Resilient Intelligent Sustainable Energy Systems.. In: Innovative Smart Grid Technologies Europe (ISGT EUROPE) : IEEE, 2024, pp. 1–5
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Future energy systems are subject to various uncertain influences. As resilient systems they should maintain a constantly high operational performance whatever happens. We explore different levels and timescales of decision making in energy systems, highlighting different uncertainty sources in different domains and discuss how uncertainties can be represented and how to react to them. Moreover, we summarize, which uncertainties are already well examined and which ones still need further inquiry to obtain resilient energy systems.
Nivarthi, Chandana Priya ; Huang, Zhixin ; Gruhl, Christian ; Sick, Bernhard:Multi-Task Representation Learning with Temporal Attention for Zero-Shot Time Series Anomaly Detection.. In: International Joint Conference on Neural Networks (IJCNN) : IEEE, 2024, pp. 1–10
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Ensuring the reliability of critical industrial systems across various sectors is crucial. It is essential to detect deviations from regular behaviour to mitigate disruptions and preserve infrastructure integrity. However, accurately labelling anomaly datasets is challenging due to their rarity and manual annotation subjectivity. The conventional approach of training separate models for each dataset entity further complicates model development. This paper presents a novel Multi-task Learning framework combining LSTM Autoencoder with temporal attention mechanism (MTL-LATAM) for effective time series anomaly detection. Multitask learning models improve adaptability and generalizability, leading to reduced runtime and compute power while supporting zero-shot evaluation. These models offer flexibility in detecting emerging anomalies. Additionally, we introduce a dynamic thresholding mechanism to incorporate temporal context for anomaly detection and provide visualizations of attention weights to enhance interpretability. The study compares MTL- LATAM, with other multi-task models, evaluates multi-task versus single-task models and assesses the performance of the proposed frame- work in zero-shot learning scenarios. The findings indicate MTL- LATAM’s effectiveness across real-world and open-source datasets, achieving 95% and 97% task synergy. The results underscore the superior performance of multi-task models in zero-shot tasks compared to individual models trained exclusively on their respective datasets.
Kohpeiß, M. ; Schaller, T.: Systeme zur Angriffserkennung nach dem neuen EU-Cybersicherheitsrahmen – Hochrisiko-Systeme der KI-Verordnung?. In: Computer und Recht (2024), pp. 22–29
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Geminn, C. ; Roßnagel, A.: The GDPR five years on. A retrospective from the viewpoint of consumers. In: Revue européenne de droit de la consommation / European Journal of Consumer Law (2024), pp. 109–129
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Geminn, C. ; Terada, M. ; Tatsumi, T.: Die Verwaltung in der Pandemie. Bewältigungsstrategien in Japan und Deutschland. In: Die Öffentliche Verwaltung (2024), pp. 464–473
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Botache, Diego ; Decke, Jens ; Ripken, Winfried ; Dornipati, Abhinay ; Götz-Hahn, Franz ; Ayeb, Mohamed ; Sick, Bernhard:Enhancing Multi-objective Optimisation Through Machine Learning-Supported Multiphysics Simulation.. In: European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases (ECMLPKDD) : Springer, 2024, pp. 297–312
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This paper presents a methodological framework for training, self-optimising, and self-organising surrogate models to approximate and speed up multiobjective optimisation of technical systems based on multiphysics simulations. At the hand of two real-world datasets, we illustrate that surrogate models can be trained on relatively small amounts of data to approximate the underlying simulations accurately. Including explainable AI techniques allow for highlighting feature relevancy or dependencies and supporting the possible extension of the used datasets. One of the datasets was created for this paper and is made publicly available for the broader scientific community. Extensive experiments combine four machine learning and deep learning algorithms with an evolutionary optimisation algorithm. The performance of the combined training and optimisation pipeline is evaluated by verifying the generated Pareto-optimal results using the ground truth simulations. The results from our pipeline and a comprehensive evaluation strategy show the potential for efficiently acquiring solution candidates in multiobjective optimisation tasks by reducing the number of simulations and conserving a higher prediction accuracy, i.e., with a MAPE score under 5% for one of the presented use cases.
Roth, Angela ; Benz, Carina ; Wilga, Matthäus ; Hottum, Peter ; Langes, Barbara ; Lewandowski, Tom ; Peters, Christoph ; Satzger, Gerhard: Value Creation in the Information Economy: Shaping the Triad of AI, Service, and Human Work.. In: Journal of Service Management Research (SMR) (2024)
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Geffers, Kristin ; Bretschneider, Ulrich ; Eilers, Karen:Conceptualizing the Agile Mindset in Agile Software Development Teams.. In: International Conference on Wirtschaftsinformatik (WI 2024). Würzburg, Germany, 2024
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Agile Software Development Teams (ASDTs) employ agile method-ologies to navigate the dynamic landscape of the software industry, responding effectively to constant change and innovation. The success of ASDTs relies sig-nificantly on the individuals’ mindset, referred to as the agile mindset (AM). Yet, a clear conceptualization of the AM remains elusive, as existing approaches do not meet scientific standards and fail to produce consistent results. This paper addresses this gap by systematically conceptualizing the AM within the context of ASDTs. Through a systematic review and evaluation of existing definitions and initial conceptualizations, we identify dimensions and consolidate insights, resulting in a comprehensive conceptualization of the AM. Our work represents a crucial step towards understanding the AM’s role in ASDTs and lays the foun-dation for our planned future work: the empirical validation and development of a standardized measurement instrument for the AM.
Gilga, C. ; Knoche, L.:Lagekartierung in der Katastrophe – Der Einsatz künstlicher Intelligenz zur Analyse von Erdbeobachtungs- und Internetdaten im AIFER-Projekt aus Sicht der Endanwenderinnen und -anwender und des Rechts.. In: für Bevölkerungsschutz und Katastrophenhilfe, B. (ed.): Forschung für den Bevölkerungsschutz. Frankfurt am Main, 2024, pp. 95–97
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Gilga, C. ; Panahi, T. ; Karaboga, M. ; Meier, Y. ; Schindler, S.:Personalisierte Politische Online-Werbung. Nutzung – Wirkung – Rechtlicher Rahmen, Policy Paper, Forschungsberichte der Plattform Privatheit ( Nr. 2). Karlsruhe : Fraunhofer ISI, 2024
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Gilga, C. ; Panahi, T. ; Schindler, S.: Politisches Microtargeting – Rechtsfragen personalisierter politischer Werbung. In: Computer und Recht (2024), pp. 416–424
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Nebel, M. ; Johannes, P. C.: Open Web Index im Lichte des Digital Services Act: Voraussetzungen – Grenzen – Rechtsfolgen. In: Zeitschrift für das Recht der Digitalisierung, Datenwirtschaft und IT (MMR) (2024), pp. 1010–1016
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Göppinger, Sophia Maite Magdalena ; Meier, Alexander ; Elshan, Edona ; Malekan, Omid ; Leimeister, Jan Marco:Beyond Trial and Error: Strategic Assessment of Decentralized Identity in US Healthcare.. In: International Conference on Information Systems (ICIS). Bangkok, Thailand, 2024
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The US healthcare system relies on trustworthy and effective data exchange. Yet its data flows are impaired by pervasive conflicting interests and incentives and the lack of authentic data, leading to persistent inefficiencies. By ensuring authentic data, decentralized identity (ID) presents a potential solution. However, information systems (ISs) have historically shown high rates of unsuccessful deployment in healthcare. Since formative use case evaluation frameworks can enhance deployment success rates, this paper conducted a participatory action research study to develop and test an evidence-based, theory-informed, and practical framework for assessing healthcare use cases' amenability to decentralized ID. The framework serves healthcare organizations as a decision-support tool in choosing suitable use cases for decentralized ID and planning corresponding initiatives. For researchers, the socio-technical factors that determine use cases's amenability to decentralized ID enhance their understanding of this novel IS and the socio-technical change it brings about.
Götz, Johann ; Mathuseck, Lars ; Busch, Lennart ; David, Klaus:Influence of the Pedestrian Geometry in Collision Avoidance Systems.. In: 2024 IEEE 99th Vehicular Technology Conference (VTC2024-Spring) : IEEE, 2024, pp. 1–5
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Blohm, Ivo ; Schulz, Moritz ; Leimeister, Jan Marco: Hedonic Signals in Crowdfunding. In: Business & Information Systems Engineering (BISE) vol. 66 (2024), pp. 757–775
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This study draws on signaling theory to investigate the effect of hedonic signals in crowdfunding projects on funding performance. It compares the effect of hedonic signals across reward-, equity-, and donation-based crowdfunding platforms by combining archival data from 18 platforms and a large-scale panel of 64 experts that rate the strength of hedonic signals in 108 crowdfunding projects. Through the application of mixed linear modeling, the findings indicate a positive influence of stronger hedonic signals on funding performance. However, there are substantial differences across platform types. Increasing the strength of hedonic signals by one standard deviation increases funding performance by 28.9% on reward platforms, while there are no systematic effects on equity and donation platforms. This study contributes to existing crowdfunding research by clarifying the role of hedonic signals in crowdfunding and shedding light on the increasing need to better consider the characteristics of different crowdfunding platforms in crowdfunding research.
Geffers, Kristin ; Bretschneider, Ulrich ; Eilers, Karen ; Oeste-Reiß, Sarah:Leading Teams in Today’s Dynamic Organizations: The Core Characteristics of Agile Leadership.. In: Hawaii International Conference on System Sciences (HICSS). Waikiki, Hawaii, USA, 2024 — ISBN 978-0-9981331-7-1
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Agile leadership (AL) is essential for leading agile transformations. So far, a conceptualization of AL is still lacking. To investigate its core characteristics, we conduct an exploratory single case study. Our study examines a senior executive training program within a young European automotive software company, with the objective of establishing AL throughout the organization. Our study’s primary findings reveal that AL can be categorized into five perspectives: person-based, purpose-based, result-based, position-based, and process-based. Agile leaders are humble, adaptable, visionary, and engaged. AL focuses on aligning employees with a clear vision, fostering a learning organization, increasing transparency, and establishing decision-making in teams. It is practiced by executives, agile accountabilities, and team members. Agile leaders operate as experimenters, collaborators, facilitators, enablers, and resilient leaders. Our findings provide a foundational basis for organizations to implement AL, thereby enhancing their adaptability and overall success.
Geffers, Kristin ; Bretschneider, Ulrich ; Eilers, Karen:Exploring Individuals’ Psychological Factors as Predictors of Workforce Agility in Software Development Teams.. In: International Conference on Information Systems (ICIS). Bangkok, Thailand, 2024
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In the rapidly evolving automotive sector, software development teams (SDTs) face the challenge of swiftly adapting to unpredictable changes driven by globalization, customer expectations, and innovation. This study delves into the influence of psychological factors — particularly attitudes, emotions, and perceptions — on the workforce agility of employees working in SDTs, crucial for adeptly navigating dynamic shifts. Despite the central role of psychological factors in shaping behavior, existing research overlooks their impact on workforce agility. Through interviews with 27 employees from a leading software company serving the automotive industry, we empirically identified three key factors: agile mindset, psychological empowerment, and agile leadership. Subsequently, drawing upon the literature, we explore the correlations among these factors. By investigating these previously unexplored psychological predictors and their correlations, this study enriches our understanding of workforce agility and provides actionable insights for SDT leaders to nurture desired behaviors.
Bruhin, Olivia ; Ebel, Philipp ; Müller, Leon ; Li, Mahei:GenAI and Software Engineering: Strategies for Shaping the Core of Tomorrow’s Software Engineering Practice.. In: International Conference on Information Systems (ICIS). Bangkok, Thailand, 2024
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The rapid integration of Generative Artificial Intelligence (GenAI) into Software Engineering (SE) transforms how software is designed, developed, and maintained, introducing significant managerial challenges. This study examines these emerging challenges and proposes strategic actions for managing SE in the future. We provide an overview of the current GenAI development within SE and analyze its implications across three critical pillars: People, Process, and Technology. Our findings indicate that GenAI introduces a dynamic complexity to these elements, demanding a combined managerial approach. We propose six strategic actions essential for shaping the future of SE practice.This study aims to help practitioners make strategic decisions regarding GenAI implementation and offers researchers insights into past findings and opportunities for further investigation.
Freise, Leonie Rebecca ; Bretschneider, Ulrich:Completing the Skills Puzzle: Developing a Skills Profile Data Model.. In: 19. Internationale Tagung der Wirtschaftsinformatik (Wi24). Würzburg, Germany, 2024
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In today’s working world, driven by technological progress, there is a growing need to adapt and update skills to remain competitive. Employers need qualified employees, and employees want to develop their job-related skills, so skills profiles are becoming more prevalent. These profiles comprise skills that individuals bring to their jobs and develop over employment. When used effectively, they offer benefits in attracting, retaining, and developing talent, as well as in staffing and performance management. This paper proposes a data model for such profiles. Drawing upon a systematic literature review and interviews with employees, we derived the critical aspects of a skill profile data model. We further demonstrate the complexity and the need for a structured approach to include a bottom-up perspective. This research contributes to the theoretical understanding of skills profile data models by including the employee perspectives. It further provides insights for organizations to develop a skilled workforce.
Bruhin, Olivia ; Ebel, Philipp ; Elshan, Edona:Exploring The Paradoxical Tensions in Low Code Environments.. In: International Conference on Information Systems (ICIS). Bangkok, Thailand, 2024
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The rapid acceleration of digitalization has increased the demand for dynamic software development, exposing a significant skills gap in IT. Low Code Development Platforms (LCDP) have emerged as a crucial solution, enabling faster development cycles and democratizing software creation. However, integrating citizen and professional developers within these platforms introduces new challenges, particularly in task division, collaboration, and governance. This study explores the dynamic of the interactions in low code environments, using paradox theory to analyze the resulting tensions – the paradox of empowerment, the paradox of security, and the paradox of harmonization – and their impact on both innovation and efficiency. Our findings provide critical insights into the roles, collaborative processes, and governance frameworks necessary for effective and balanced LCDP implementation. These insights provide a framework for effective and balanced LCDP implementation, offering organizations strategies to enhance innovation while managing the inherent complexities within these environments.
Bruhin, Olivia ; Dickhaut, Ernestine ; Elshan, Edona ; Li, Mahei Manhai:The Rise of Generative AI in Low Code Development Platforms – An Analysis and Future Directions.. In: Hawaii International Conference on System Sciences (HICSS). Waikiki, Hawaii, USA, 2024
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This study investigates the relationship between Generative AI (GenAI) and Low Code Development Platforms (LCDPs), providing preliminary insights into Gen's transformative potential in this context. It is based on expert interviews and provides insight into the changing landscape of LCDPs influenced by GenAI. The findings highlight the promising benefits of GenAI in LCDPs, such as increased efficiency and decreased errors, while also emphasizing the importance of human oversight and collaboration. The findings also highlight the importance of interpersonal skills in IT, even in an increasingly automated environment. While the economic efficiency and broader implications of GenAI are still being investigated, the study lays the groundwork for future research in this rapidly evolving domain.
Bruhin, Olivia:Beyond Code: The Impact of Generative AI on Work Systems in Software Engineering.. In: International Conference on Information Systems (ICIS). Bangkok, Thailand, 2024
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The development of Generative Artificial Intelligence (GenAI) in Software Engineering (SE) is driving significant transformations in work systems, impacting work practices, information management, and development processes. This study applies Work System Theory to explore how GenAI not only enhances individual tasks but also redefines entire workflows and collaboration models within SE environments. Through a case study involving expert interviews at a telecommunications and software company, the research uncovers both substantial benefits and emerging challenges associated with GenAI integration. The findings contribute to a structured framework that offers guidance for effectively implementing GenAI to enhance productivity and foster innovation in SE. These insights are essential for practitioners managing the rapidly evolving SE landscape, ensuring the successful and sustainable adoption of GenAI within work systems.
Ohly, Sandra ; Bitter, Elisabeth ; Harhoff, Nico ; Hindiyeh, Alana ; Schönne, Paulina ; Urner, Lukasz ; Sedefoglu, Didem:Arbeitsgestaltung in Zeiten von Digitalisierung und Homeoffice Implikationen für Lernen, Leistung und Work-Life Balance. Berlin, Heidelberg : Springer, 2024
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Ohly, Sandra:Einleitung.. In: Arbeitsgestaltung in Zeiten von Digitalisierung und Homeoffice. Implikationen für Lernen, Leistung und Work-Life Balance. Berlin, Heidelberg : Springer, 2024, pp. 1–5
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Ohly, Sandra:Zusammenfassung und Ausblick.. In: Arbeitsgestaltung in Zeiten von Digitalisierung und Homeoffice. Implikationen für Lernen, Leistung und Work-Life Balance. Berlin, Heidelberg : Springer, 2024, pp. 79–81
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Ohly, S.:Diary study.. In: Elgar Encyclopedia of Organizational Psychology : Edward Elgar Publishing, 2024, pp. 151–152
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Freise, Leonie Rebecca ; Bretschneider, Ulrich ; Oeste-Reiss, Sarah:Skills in Flux – Challenges in AI-based Skills Management and Skills Profiles.. In: 19. Internationale Tagung der Wirtschaftsinformatik (Wi24). Würzburg, Germany, 2024
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The changing world of work, driven by automation and digital tech-nologies, requires a workforce that continuously adapts its skills in order to be competitive and employable. This dynamic environment has fueled the demand for advanced skills management, with artificial intelligence (AI) playing a critical role in measuring and supporting individual skills development. This paper looks at AI-based competency profiles as a strategic tool for talent acquisition, reten-tion, and development and highlights their potential challenges. Using semi-structured interviews with experts from HR, education, and industry, we explore the multiple challenges of AI-based skills management from a theoretical, con-ceptual, and practical perspective. Our findings reveal complex problems at the individual, team, organizational, and systemic levels that form a basis for the de-velopment of effective AI-based skills management strategies. This research highlights the importance of using AI to foster an adaptable and skilled workforce that meets both current needs and future challenges.
Geffers, Kristin:Overcoming People-related Challenges in Large-scale Agile Transformations: The Role of Online Communities of Practice.. In: European Conference on Information Systems (ECIS 2024). Paphos, Cyprus, 2024
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The contemporary business landscape is shaped by complexity, ongoing change, and disruptions. To remain competitive, an increasing number of organizations are embracing the company-wide adoption of agile methodologies, known as large-scale agile transformations (LSATs). However, these transformations face significant challenges, such as employees’ lack of skills and motivation. While Communities of Practice (CoPs) are recognized as supportive mechanisms for LSATs, their role in addressing transformational challenges lacks adequate academic exploration. Our research bridges this gap by conducting an exploratory qualitative case study in a European automotive software company undergoing a LSAT. Through interviews with 33 actively participating employees across several internal online CoPs, we have found that these CoPs play a fundamental role in developing relevant employee abilities (workforce agility), perceptions (psychological empowerment), and attitudes (agile mindset). These findings contribute to understanding agile transformations and online CoPs and offer insights into effective strategies for managing and mitigating LSATs’ challenges.
Friedewald, M. ; Roßnagel, A. ; Geminn, C. ; Karaboga, M. ; Schindler, S. (eds.):Data Sharing – Datenkapitalismus by Default?. Baden-Baden : Nomos Verlagsgesellschaft, 2024
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Friedrichs, Juliane ; Ohly, Sandra: Entrepreneurial Self-Efficacy and Team Processes: Unraveling the Dynamics in Early-Stage Ventures. In: Academy of Management Proceedings vol. 2024 (2024), Nr. 1, p. 18283
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Funke, Lars ; Ilchen, Markus ; Dingel, Kristina ; Mazza, Tommaso ; Mullins, Terence ; Otto, Thorsten ; Rivas, Daniel ; Savio, Sara ; et al.: Capturing Nonlinear Electron Dynamics with Fully Characterised Attosecond X-ray Pulses. In: arXiv e-prints (2024), p. arXiv:2408.03858
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Attosecond X-ray pulses are the key to studying electron dynamics at their natural time scale involving specific electronic states. They are promising to build the conceptual bridge between physical and chemical photo-reaction processes. Free-electron lasers have demonstrated their capability of generating intense attosecond X-ray pulses. However, harnessing them for time-resolving experiments and investigations of nonlinear X-ray absorption mechanisms remains a cutting-edge challenge. We have characterised X-ray pulses with durations of down to 700attoseconds and peak powers up to 200GW at ∼ 1keV photon energy via angular streaking at the SQS instrument of the European XFEL. As direct application, we present results of nonlinear X-ray-matter interaction via state-specific spectroscopy on a transient system. Using the derived spectral and temporal information of each pulse, we deliberately steer the probability for formation of double-core vacancies in neon gas atoms through excitation or ionisation of the second inner-shell electron after K-shell ionisation. Our results advance the field of attosecond science with highly intense and fully characterised X-ray pulses to the site-specific investigation of electronic motion in transient media.
Ochs, Carsten:Local Digital Practices, Worldwide.. In: Friese, H. ; Rebane, G. ; Nolden, M. ; Schreiter, M. (eds.): Handbuch Soziale Praktiken und digitale Alltagswelten. 978-3. ed.. München : Springer, 2024
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Ochs, Carsten:Privacy, the Private Sphere, and Digitization.. In: Friese, H. ; Rebane, G. ; Nolden, M. ; Schreiter, M. (eds.): Handbuch Soziale Praktiken und digitale Alltagswelten. München : Springer, 2024
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Ganter, Bernhard ; Hanika, Tom ; Hirth, Johannes ; Obiedkov, Sergei:Collaborative Hybrid Human AI Learning through Conceptual Exploration.. In: Ericson, P. ; Khairova, N. ; Vos, M. D. (eds.): Proceedings of the Workshops at the Third International Conference on Hybrid Human-Artificial Intelligence co-located with (HHAI) 2024), Malmö, Sweden, June 10-11, 2024, CEUR Workshop Proceedings. vol. 3825 : CEUR-WS.org, 2024, pp. 1–8
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Ochs, Carsten: Deep Targeting: Zur Steigerung der Eingriffstiefe in die Erfahrungsspielräume des Sozialen. In: Zeitschrift für Soziologie (2024)
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Schmidt, L.:Neue Technologien für die Produktionsarbeit testen, 2024
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Das hessische Zukunftszentrum für menschzentrierte Künstliche Intelligenz in der Produktionsarbeit (Zukipro) unterstützt kleine und mittlere Unternehmen im digitalen Wandel und bietet praxisorientierte Beratung, Qualifizierung und Erprobungsmöglichkeiten digitaler Technologien. Im Digitallabor des Fachgebiets Mensch-Maschine-Systemtechnik der Universität Kassel können Unternehmen neue Technologien selbst testen.
Reinhard, Philipp ; Li, Mahei Manhai ; Peters, Christoph ; Leimeister, Jan Marco: Augmentierung statt Automatisierung: Nachhaltigkeit in der Entwicklung von KI-Systemen aus der Mitarbeitendenperspektive. In: Bruhn, M. ; Hadwich, K. (eds.) Forum Dienstleistungsmanagement vol. Sustainable Service Management (2024)
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Sedefoglu, Didem ; Lahnala, Allison Claire ; Wagner, Jasmin ; Flek, Lucie ; Ohly, Sandra:LeadEmpathy: An Expert Annotated German Dataset of Empathy in Written Leadership Communication.. In: Proceedings of the 2024 Joint International Conference on Computational Linguistics, Language Resources and Evaluation (LREC-COLING 2024), 2024, pp. 10237–10248
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Beddar-Wiesing, Silvia ; D’Inverno, Alessio ; Graziani, Caterina ; Lachi, Veronica ; Moallemy-Oureh, Alice ; Scarselli, Franco ; Thomas, Josephine: Weisfeiler–Lehman goes dynamic: An analysis of the expressive power of Graph Neural Networks for attributed and dynamic graphs. In: Neural Networks vol. 173, Elsevier (2024), p. 106213
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Graph Neural Networks (GNNs) are a large class of relational models for graph processing. Recent theoretical studies on the expressive power of GNNs have focused on two issues. On the one hand, it has been proven that GNNs are as powerful as the Weisfeiler–Lehman test (1-WL) in their ability to distinguish graphs. Moreover, it has been shown that the equivalence enforced by 1-WL equals unfolding equivalence. On the other hand, GNNs turned out to be universal approximators on graphs modulo the constraints enforced by 1-WL/unfolding equivalence. However, these results only apply to Static Attributed Undirected Homogeneous Graphs (SAUHG) with node attributes. In contrast, real-life applications often involve a much larger variety of graph types. In this paper, we conduct a theoretical analysis of the expressive power of GNNs for two other graph domains that are particularly interesting in practical applications, namely dynamic graphs and SAUGHs with edge attributes. Dynamic graphs are widely used in modern applications; hence, the study of the expressive capability of GNNs in this domain is essential for practical reasons and, in addition, it requires a new analyzing approach due to the difference in the architecture of dynamic GNNs compared to static ones. On the other hand, the examination of SAUHGs is of particular relevance since they act as a standard form for all graph types: it has been shown that all graph types can be transformed without loss of information to SAUHGs with both attributes on nodes and edges. This paper considers generic GNN models and appropriate 1-WL tests for those domains. Then, the known results on the expressive power of GNNs are extended to the mentioned domains: it is proven that GNNs have the same capability as the 1-WL test, the 1-WL equivalence equals unfolding equivalence and that GNNs are universal approximators modulo 1-WL/unfolding equivalence. Moreover, the proof of the approximation capability is mostly constructive and allows us to deduce hints on the architecture of GNNs that can achieve the desired approximation.
Hornung, G. ; Lurtz, H.:Cyber-physische Systeme zwischen rechtlichen Anforderungen und rechtskonformer Gestaltung.. In: Handbuch Industrie 4.0 und Digitale Transformation. Betriebswirtschaftliche, technische und rechtliche Herausforderungen. 2. ed.. Wiesbaden, 2024
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Hornung, G. ; Muttach, J.-P. ; Schaller, T.: Richtlinie über die Resilienz kritischer Einrichtungen: neue Pflichten für Unternehmen und Umsetzungsbedarf in Deutschland. In: Computer und Recht (2024), pp. 229–237
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Lehna, Malte ; Hassouna, Mohamed ; Degtyar, Dmitry ; Tomforde, Sven ; Scholz, Christoph:Fault Detection for Agents in Power Grid Topology Optimization: A Comprehensive Analysis.. In: Machine Learning for Sustainable Power Systems (ML4SPS), ECML : Springer, 2024. — (accepted)
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Optimizing the topology of transmission networks using Deep Reinforcement Learning (DRL) has increasingly come into focus. Various DRL agents have been proposed, which are mostly benchmarked on the Grid2Op environment from the Learning to Run a Power Network (L2RPN) challenges. The environments have many advantages with their realistic chronics and underlying power flow backends. However, the interpretation of agent survival or failure is not always clear, as there are a variety of potential causes. In this work, we focus on the failures of the power grid simulation to identify patterns and detect them in advance. We collect the failed chronics of three different agents on the WCCI 2022 L2RPN environment, totaling about 40k data points. By clustering, we are able to detect five distinct clusters, identifying common failure types. Further, we propose a multi-class prediction approach to detect failures beforehand and evaluate five different prediction models. Here, the Light Gradient-Boosting Machine (LightGBM) shows the best failure detection performance, with an accuracy of 86%. It also correctly identifies in 91% of the time failure and survival observations. Finally, we provide a detailed feature importance analysis that identifies critical features and regions in the grid.
Schwegler, G. ; Kropf, J.:Music and Conventions: Grasping Qualities of an Elusive and Changing Object.. In: Diaz-Bone, R. ; Larquier, G. (eds.): Handbook of Economics and Sociology of Conventions. Cham : Springer, 2024, pp. 1–24
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Hornung, G. ; Schaller, T. ; Selzer, A. ; Stummer, S.: Rechtliche und technische Herausforderungen von Privatheit in Big-Data-Verarbeitungssystemen. In: Kommunikation & Recht 2024 (2024), pp. 187–192
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Hupe, Anna:When to Use Smart Contracts Instead of Traditional Contracts – A Conceptual Analysis.. In: 19th International Conference on Wirtschaftsinformatik (WI). Würzburg, Germany, 2024
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Smart contracts are code-based representations of business logic that encapsulate predefined rules that they verify and execute autonomously. As self-executing agreements, these contracts running on a blockchain facilitate interactions between untrusted parties, eliminating the need for intermediaries. They speed processes, increase transparency, and facilitate data exchange across national and organizational boundaries, providing a competitive advantage. However, there are significant costs associated with implementing smart contracts. In our study, we conduct a comparative analysis of these costs and compared them to traditional contracts. Using a combination of literature review and expert interviews, we dissect the cost structures of both approaches at an abstract level. We then construct a matrix to systematically compare traditional contracts with smart contracts. This framework allows us to model the conditions that favor the use of smart contracts over traditional ones, and to identify instances where each approach has a distinct advantage.
Söllner, M. ; Mishra, A. N. ; Becker, J. M. ; Leimeister, J. M.: Use IT again? Dynamic roles of habit, intention and their interaction on continued system use by individuals in utilitarian, volitional contexts. In: European Journal of Information Systems vol. 33 (2024), Nr. 1, pp. 80–96
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Johannes, P.C.: Öffentliche Register im Internet und Datenschutz. In: Der Betrieb (2024), pp. 2947–2950
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Hubert, Andreas ; Doll, Konrad ; Sick, Bernhard:Influence of Background Color on 6D Pose Tracking Accuracy.. In: International Conference on Engineering and Emerging Technologies (ICEET) : IEEE, 2024, pp. 1–6
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Fast 6D pose tracking is a critical component in numerous applications ranging from robotics to augmented reality. A notable method for addressing this challenge involves simulating the last known pose and comparing it with the current one, a process central to the SE(3)-TrackNet approach, which is known for its reliability. Traditionally, this method employs a uniform black background for the simulated input. This study challenges the standard practice by demonstrating that the choice of background color can significantly influences the accuracy of 6D pose estimation. Through a series of experiments, we provide results showing that background color is a critical factor for the effectiveness of the SE(3) TrackNet approach.
Huang, Zhixin ; Nivarthi, Chandana Priya ; Gruhl, Christian ; Sick, Bernhard:Spatial-Temporal Attention Graph Neural Network with Uncertainty Estimation for Remaining Useful Life Prediction.. In: International Joint Conference on Neural Networks (IJCNN) : IEEE, 2024, pp. 1–9
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In the increasingly complex industrial system health management domain, accurate prediction of remaining useful life plays an essential role. This paper analyzes the methods to improve the predictive performance of remaining useful life from three aspects: optimizing model structures, augmenting uncertainty estimation in predictions, and transitioning normalization methods. Based on our analysis, we propose a novel model, the Uncertainty Spatial-Temporal Attention Graph Neural Network (USTAGNN), which consists of three primary components: sensor graph construction, a spatio-temporal feature extractor, and a probabilistic prediction module. The feature extractor leverages graph neural networks and temporal convolutional networks as a foundation to extract spatial and temporal features, further enhanced by attention mechanisms, spectral normalization, and residual connections to bolster its distance awareness. Following extensive experimental comparisons, we utilized the parameter-driven dynamic adjacency matrix for sensor graph construction and the deep kernel Gaussian process for precise uncertainty estimation. USTAGNN tries to resolve issues not thoroughly addressed in existing research, such as comparative analyses of sensor graph construction methods, accurate uncertainty estimation, and the model’s generalization under different preprocessing conditions. The proposed model demonstrated state-of-the-art performance on various subsets of the C-MAPSS dataset, achieving up to a 35.9% improvement in prediction score.
Schmitt, Anuschka ; Wambsganss, Thiemo ; Janson, Andreas ; Gajos, Krzysztof:The Promise of Evaluative Algorithmic Advice: A Field Experiment on Writing Improvement.. In: Academy of Management (AOM) Meeting. Chicago, IL, USA, 2024
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The design and impact of algorithmic advice has become more important than ever with generative artificial intelligence’s (AI) diffusion in organizational and private realms. Unfortunately, challenges associated with the computational nature of AI-based systems and human sensemaking can hinder augmentation of human work. Prevalent forms of algorithmic advice commonly provide a user with ‘one best’ solution that can induce the user to fixate on the advice and neglect own critical reasoning. To overcome such interaction challenges, we explore the potential of evaluative algorithmic advice that provides users with more open-ended and engaging feedback. As part of two controlled experiments, we find that humans prefer evaluative over contrastive advice for writing feedback. We then conducted a field experiment in the context of an educational business pitch writing task with two conditions: (i) contrastive algorithmic advice improving users’ writing without any further feedback; and (ii) evaluative algorithmic advice providing feedback in form of open-ended questions and pro and contra arguments. Users’ writing could be improved regardless of the type of algorithmic advice, yet we show that users exposed to evaluative advice engaged significantly more with the task and the advice. Our study explores how algorithmic advice may serve as a critical stimulator rather than attenuating human agency in AI augmentation.
Bala, C. ; Boden, A. ; Lamla, J. ; Stevens, G. ; Schuldzinski, W. (eds.):Professionalisierung im Verbraucherschutz. Jahrbuch Konsum & Verbraucherwissenschaften 2023/2024. Düsseldorf : Verbraucherzentrale, 2024 — ISBN 978-3-86336-936-1
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Klein, S. P. ; Spieth, P. ; Söllner, M.: Employee acceptance of digital transformation strategies: A paradox perspective. In: Journal of Product Innovation Management vol. 41 (2024), Nr. 5, pp. 999–1021
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Huang, Zhixin ; He, Yujiang ; Nivarthi, Chandana Priya ; Gruhl, Christian ; Sick, Bernhard:Time-Series Representation Learning via Heterogeneous Spatial-Temporal Contrasting for Remaining Useful Life Prediction.. In: International Conference on Pattern Recognition (ICPR) : Springer, 2024, pp. 1–21
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Classical contrastive learning paradigms rely on manual augmentations like cropping, masking, dropping, or adding noise randomly to create divergent sample views from original data. However, the choice of which method to manipulate samples is often subjective and may destroy the latent pattern of the sample. In response, this paper introduces a novel contrastive learning paradigm without choosing sample view augmentation methods, termed Heterogeneous Spatial-Temporal Representation Contrasting (HSTRC). Instead of sample view augmentation, we employ dual branches with a heterogeneous spatial-temporal flipped structure to extract two distinct hidden feature views from the same source data, which avoids disturbing the original time series. Leveraging a combination of cross-branch spatial-temporal contrastive and projected feature contrastive loss functions, HSTRC can effectively extract robust representations from unlabeled time series data. Remarkably, by only fine-tuning the fully connected layers on top of extracted representations by HSTRC, we achieve the best performance across several Remaining Useful Life prediction datasets, showing up to 19.2% improvements over the state-of-the-art supervised learning methods and classical contrastive learning paradigms. Besides, further intensive experiments demonstrate HSTRC's effectiveness in active learning, out-of-distribution testing, and transfer learning scenarios.
Huang, Zhixin ; Gruhl, Christian ; Sick, Bernhard:LiST: An All-Linear-Layer Spatial-Temporal Feature Extractor with Uncertainty Estimation for RUL Prediction.. In: IEEE Conference on Industrial Electronics and Applications (ICIEA) : IEEE, 2024, pp. 1–7
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In the context of Remaining Useful Life (RUL) prediction for industrial systems, the pursuit of prediction accuracy must be balanced against the hardware costs of model operation and the reliability of prediction results. To resolve these challenges, we introduce LiST, an all-linear-layer spatial-temporal feature extractor integrated with uncertainty estimation, specifically designed for processing sensor multivariate time series (MTS) data. Unlike traditional linear models that flatten MTS and thus neglect their spatial-temporal dependencies, LiST's linear layers act on both the sensor and time dimensions of MTS that can extract spatial and temporal features like GNN and RNN models. Through performance comparisons on four RUL prediction datasets, LiST uses only 66.1% of the parameters, achieves comparable accuracy to state-of-the-art GNN and RNN models, obtains the best results on two datasets with up to a 21.6% improvement in Score, and enhances training efficiency by 3.2 times. Additionally, LiST can predict RUL with uncertainty estimation and precisely disentangle epistemic and aleatoric uncertainties, thus enhancing the model's practicality and reliability in real-world industrial applications.
Kropf, J ; Frisch, T:Valuation and digital Platforms.. In: Krüger, A. ; Peetz, T. ; Schaefer, H. (eds.): The Routledge International Handbook of Valuation and Society. London : Routledge, 2024, pp. 267–278
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Karst, Fabian Sven ; Chong, Sook-Yee ; Antenor, Abigail A. ; Lin, Enyu ; Li, Mahei Manhai ; Leimeister, Jan Marco:Generative AI for Banks: Benchmarks and Algorithms for Synthetic Financial Transaction Data.. In: Workshop on Information Technologies and Systems (WITS). Bangkok, Thailand, 2024
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The banking sector faces challenges in using deep learning due to data sensitivity and regulatory constraints, but generative AI may offer a solution. Thus, this study identifies effective algorithms for generating synthetic financial transaction data and evaluates five leading models - Conditional Tabular Generative Adversarial Networks (CTGAN), DoppelGANger (DGAN), Wasserstein GAN, Financial Diffusion (FinDiff), and Tabular Variational AutoEncoders (TVAE) - across five criteria: fidelity, synthesis quality, efficiency, privacy, and graph structure. While none of the algorithms is able to replicate the real data's graph structure, each excels in specific areas: DGAN is ideal for privacy-sensitive tasks, FinDiff and TVAE excel in data replication and augmentation, and CTGAN achieves a balance across all five criteria, making it suitable for general applications with moderate privacy concerns. As a result, our findings offer valuable insights for choosing the most suitable algorithm.
Sedefoglu, Didem ; Ohly, Sandra ; Schmitt, Antje ; Göritz, Anja S: Leading in times of crisis and remote work: perceived consideration leadership behavior and its effect on follower work engagement. In: Frontiers in Organizational Psychology vol. 2 (2024), p. 1359541
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Lamla, Jörn:Konsum als holistische Perspektive. Wie sich Sozial- und Verbraucherpolitik als Konsumpolitik zukunftsweisend zusammendenken lassen.. In: Hellmann, K.-U. (ed.): Verbrauchersozialpolitik. Über sozialpolitische Funktionen der Verbraucherpolitik und vergleichbare Vermischungen : Nomos, 2024 — ISBN 978-3-7560-0821-6, pp. 135–159
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Lamla, Jörn:Professionalisierung im Verbraucher:innenschutz. Herausforderungen, Möglichkeiten und Grenzen.. In: Bala, C. ; et al. (eds.): Professionalisierung im Verbraucherschutz. Jahrbuch Konsum & Verbraucherwissenschaften.. Düsseldorf, 2024
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Lamla, Jörn:Consumption and Conventions: Valuation, Recommendation, and the Quality of Goods in Digital Age.. In: Diaz-Bone, R. ; Larquier, G. (eds.): Handbook of Economics and Sociology of Conventions. Cham : Springer, 2024 — ISBN 978-3-030-52130-1, pp. 1–19
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Hornung, Gerrit ; Blättel-Mink, Birgit ; Helmke, Jan Torben ; Döben-Henisch, Gerd-Dietrich ; Lamla, Jörn:Nachhaltige Intelligenz – intelligente Nachhaltigkeit: transdisziplinäre Forschungsperspektiven. Whitepaper. vol. 17. Kassel : Kassel University Press, 2024
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Karst, Fabian ; Li, Mahei Manhai ; Leimeister, Jan Marco:FinDEx: A Synthetic Data Sharing Platform for Financial Fraud Detection.. In: Hawaii International Conference on System Sciences (HICSS). Waikiki, Hawaii, USA : University of Hawaiʻi at Mānoa, 2024 — ISBN 978-0-9981331-7-1
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The rising number of financial frauds inflicted in the last year more than 800 billion USD in damages on the global economy. Although financial institutions possess advanced AI systems for fraud detection, the time required to accumulate a sufficient volume of fraudulent data for training models creates a costly vulnerability. Combined with the inability to share fraud detection training data among institutions due to data and privacy regulations, this poses a major challenge. To address this issue, we propose the concept of a synthetic data-sharing ecosystem platform (FinDEx). This platform ensures data anonymity by generating synthesized training data based on each institution's fraud detection datasets. Various synthetic data generation techniques are employed to rapidly construct a shared dataset for all ecosystem members. Using design science research, this paper leverages insights from financial fraud detection literature, data sharing practices, and modular systems theory to derive design knowledge for the platform architecture. Furthermore, the feasibility of using different data generation algorithms such as generative adversarial networks, variational auto encoder and Gaussian mixture model was evaluated and different methods for the integration of synthetic data into the training procedure were tested. Thus, contributing to the theory at the intersection between fraud detection and data sharing and providing practitioners with guidelines on how to design such systems.
Lamla, Jörn: Nachhaltiges Konsumieren im Anthropozän. Strukturelle Widersprüche, lebenspraktische Konflikte und die Zukunft der Verbraucherdemokratie.. In: Zeitschrift für Wirtschafts- und Unternehmensethik (zfwu) vol. 25 (2024), Nr. 1, pp. 7–27
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Landau, E. ; Schmidt, L.:Erprobung eines innovativen Unternehmensberatungskonzepts für neue Technologien am Beispiel von 3D-Scannern und -Druckern.. In: Gesellschaft für Arbeitswissenschaft e. V. (ed.): Arbeitswissenschaft in-the-loop - Mensch-Technologie-Integration und ihre Auswirkung auf Mensch, Arbeit und Arbeitsgestaltung: 70. Kongress der Gesellschaft für Arbeitswissenschaft (Stuttgart 2024). Sankt Augustin : GfA-Press, 2024, pp. 1–6 (H.3.5)
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Im Beitrag wird der Entwicklungsstand eines Unternehmensberatungskonzepts für kleine und mittlere Unternehmen (KMU) aus Produktion und Handwerk am Beispiel von 3D-Scannern und -Druckern vorgestellt. Ziel ist es, den Beschäftigten ein selbstständiges Austesten neuer Technologien anhand praxisnaher Anwendungsfälle zu ermöglichen. Dabei wurde in einem Mixed-Method-Design untersucht, ob die pädagogischen und didaktischen Werthaltungen bzw. Überzeugungen, u. a. Anchored Instruction und Cognitive Apprenticeship, umgesetzt und die Lernziele erreicht wurden. Es werden erste Ergebnisse der Evaluation des Konzepts aus einer Pilotstudie (N = 5) vorgestellt, diskutiert und Maßnahmen für die iterative Überarbeitung abgeleitet.
Kern, Marcel ; Ohly, Sandra ; Duranova, Lenka ; Friedrich, Juliane: Drowning in emails: investigating email classes and work stressors as antecedents of high email load and implications for well-being. In: Frontiers in Psychology vol. 15 (2024)
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Khosrawi-Rad, Bijan ; Keller, Paul ; Grogorick, Linda ; Benner, Dennis ; Janson, Andreas ; Robra-Bissantz, Susanne:Let’s Play with AI! A 2x2 Experiment on Collaborative vs. Competitive Game Elements for Pedagogical Conversational Agents.. In: Pre-ICIS SIG Services Workshop on Synergizing Service Ecosystems with AI. Bangkok, Thailand, 2024
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Technological advances in generative artificial intelligence (GAI) have increased the relevance of pedagogical conversational agents (PCAs) like chatbots to support students. Despite their potential for learning as a service, PCAs are rarely used by educational institutions. They often neglect the benefits of group learning, like collaborative problem- solving, and insufficiently address learners’ motivational challenges in digital environments. To tackle these issues, we designed and evaluated a gamified PCA for information systems (IS) education with collaborative and competitive group learning capabilities. We investigated the effects of collaborative and competitive elements in PCA design using a 2x2 experiment (n = 120). Our findings show that collaborative game elements foster learners’ motivation and highlight the PCA’s role as a group learning moderator. This study contributes new knowledge on GAI in IS education, meaningful gamification in the PCA context, and computer-supported collaborative learning.
Becker, A. ; Wambsganss, T.:Investigating the Influence of Kolb’s Learning Cycle Embedded in Conversational Agents on Learning Outcomes.. In: ECIS 2024 Proceedings, 2024, p. 15
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Seyda, L. ; Brüggemann, A. ; Hornung, G. ; Schneider, T.:Multi-Party Computation als Instrument zur Umsetzung datenschutzkonformer behördlicher Datenabgleiche. Eine interdisziplinäre Analyse am Beispiel der Diskussionen um das Gesetz zur Selbstbestimmung über den Geschlechtseintrag.. In: Klein, M. ; Krupka, D. ; Winter, C. ; Gergeleit, M. ; Martin, L. (eds.): INFORMATIK 2024: Lock-in or log out? Wie digitale Souveränität gelingt. Bonn, 2024, pp. 151–165
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Lamla, Jörn ; Heidbrink, Ludger ; Hohnsträter, Dirk ; Loer, Kathrin ; Roschka, Jakob:Die Zukunft des Konsums. Agenda zur Neuperspektivierung der Verbraucherforschung.. Kassel : Universität Kassel, 2024
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Lamla, Jörn ; Roschka, Jakob:Konsum.. In: Endreß, M. ; Rampp, B. (eds.): Handbuch Politische Soziologie. Baden-Baden : Nomos Verlagsgesellschaft, 2024 — ISBN ISBN 978-3-8487-4836-5
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Schmidt, L. ; Sommer, C. ; Hornung, G. ; Briegel, R. ; Faulhaber, A. ; Hegenberg, J. ; Kahnt, S. ; Lambrecht, F. ; et al.: U-hoch-3. In: Schlussbericht der 2. Förderphase des BMBF-Projektes, Schlussbericht der 2. Förderphase des BMBF-Projektes.. Kassel (2024)
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Mit dem Ziel, die Lebensqualität in der Stadt zu steigern, öffentliche Verkehrsmittel attraktiver zu machen und Nutzungsbarrieren abzubauen, wurde im Projekt U-hoch-3 (unbeschwert urban unterwegs) ein Assistenzsystem entwickelt für den Belegungszustand öffentlicher Verkehrsmittel, die Anschlusssicherung beim Umsteigen sowie einen Lieferdienst für Einkäufe. Insbesondere zu Stoßzeiten werden volle Bahnen und Busse zur Belastungsprobe für alle Anwesenden. Auch die Nutzung der Mehrzweckflächen gestaltet sich bei hoher Auslastung schwierig. Im Projekt wurde moderne Sensorik in öffentlichen Verkehrsmitteln verbaut und die Zählung von Personen und Fahrrädern als Beispiel entwickelt. Weitere Informationen wie Wetter und Schulferien werden mit den Zähldaten verrechnet und die voraussichtliche Belegung der Fahrzeuge mit Personen angezeigt. Zusätzlich wird die tatsächliche Belegung mit Fahrrädern in der App pro Fahrzeug und an der Haltestelle pro Tür angezeigt, um das Einsteigen zu erleichtern. Oft führen schon geringe Verspätungen zu verpassten Anschlüssen, da wartende Verkehrsmittel nicht über Anschlusswünsche informiert sind. Fahrgäste können nun in der App ihre Anschlüsse angeben, die nach Möglichkeit gesichert werden und in zukünftigen Fahrplänen berücksichtigt werden können. Die Beförderung von Einkäufen ist in öffentlichen Verkehrsmitteln oft unkomfortabel. Der Lieferdienst soll daher den Einkauf aus der Innenstadt nach Hause bringen. Damit dies nicht zu mehr Lieferverkehr in der Innenstadt führt, wurden Roboter zum Einsammeln der Einkäu-fe erprobt. Im Projekt erarbeitete Lieferstationen sollen in der Stadt Kassel errichtet werden, z. B. an der Markthalle. Die Ansätze zur Belegungsinformation und zur Anschlusssicherung wurden entwicklungsbegleitend evaluiert und sollen nach Projektende in einen 12-monatigen Probebetrieb gehen, bevor entschieden wird, ob sie dauerhaft in Betrieb bleiben. Das Konsortium bestand aus geförderten Anwendungspartnern (Kasseler Verkehrs-Gesellschaft AG, Nordhessischer VerkehrsVerbund), Entwicklungspartnern (INIT GmbH, IVU Traffic Technologies AG) und drei Fachgebieten der Universität Kassel (Fachgebiet Mensch-Maschine-Systemtechnik, Fachgebiet Verkehrsplanung und Verkehrssysteme, Fachgebiet Öffentliches Recht, IT-Recht und Umweltrecht). Außerdem haben assoziierte Partner (City Kaufleute Kassel e. V., ECE Projektmanagement GmbH \& Co. KG, Werbegemeinschaft Kö-nigs-Galerie, MoWiN.net e. V., Quartier Wilhelmsstraße e. V., Stadt Kassel, Verband Deutscher Verkehrsunternehmen) das Projekt ohne eigene Förderung unterstützt. Die Aufgaben der drei Fachgebiete der Universität Kassel lagen schwerpunktmäßig im Bereich der Modellierung und Simulation, Beratung zum Datenschutz, Gestaltung der Benutzungsschnittstellen, wissenschaftlichen Evaluation und Ableitung von Handlungsempfehlungen. Außerdem übernahm das Fachgebiet Mensch-Maschine-Systemtechnik die Verbundvor-habenskoordination.
Johannes, P. C. ; Nebel, M.:Wenn die Datengenossenschaft für mich einwilligt: Zum speziellen Datenvermittlungsdienst nach DGA.. In: Friedewald, M. ; Roßnagel, A. ; Geminn, C. ; Karaboga, M. ; Schindler, S. (eds.): Data Sharing – Datenkapitalismus by Default?. Baden-Baden : Nomos, 2024, pp. 75–94
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Kropf, J: Werten und Bewerten (Literaturbesprechung: Krüger, Anne K., Soziologie des Wertens und Bewertens. Einsichten. Themen der Soziologie (utb). Bielefeld: transcript 2022).. In: Kölner Zeitschrift für Soziologie und Sozialpsychologie vol. 76 (2024), Nr. 2, pp. 233–236
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Ali, Mohammad Wazed ; Mustafa, Mohammed Asif bin ; Shuvo, Md. Aukerul Moin ; Sick, Bernhard: Location based Probabilistic Load Forecasting of EV Charging Sites: Deep Transfer Learning with Multi-Quantile Temporal Convolutional Network.. In: arXiv e-prints (2024), p. arXiv:2409.11862
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Electrification of vehicles is a potential way of reducing fossil fuel usage and thus lessening environmental pollution. Electric Vehicles (EVs) of various types for different transport modes (including air, water, and land) are evolving. Moreover, different EV user groups (commuters, commercial or domestic users, drivers) may use different charging infrastructures (public, private, home, and workplace) at various times. Therefore, usage patterns and energy demand are very stochastic. Characterizing and forecasting the charging demand of these diverse EV usage profiles is essential in preventing power outages. Previously developed data-driven load models are limited to specific use cases and locations. None of these models are simultaneously adaptive enough to transfer knowledge of day-ahead forecasting among EV charging sites of diverse locations, trained with limited data, and cost-effective. This article presents a location-based load forecasting of EV charging sites using a deep Multi-Quantile Temporal Convolutional Network (MQ-TCN) to overcome the limitations of earlier models. We conducted our experiments on data from four charging sites, namely Caltech, JPL, Office-1, and NREL, which have diverse EV user types like students, full-time and part-time employees, random visitors, etc. With a Prediction Interval Coverage Probability (PICP) score of 93.62%, our proposed deep MQ-TCN model exhibited a remarkable 28.93% improvement over the XGBoost model for a day-ahead load forecasting at the JPL charging site. By transferring knowledge with the inductive Transfer Learning (TL) approach, the MQ-TCN model achieved a 96.88% PICP score for the load forecasting task at the NREL site using only two weeks of data.
Knoth, Nils ; Tolzin, Antonia ; Janson, Andreas ; Leimeister, Jan Marco: AI Literacy and its Implications for Prompt Engineering Strategies. In: Computers and Education: Artificial Intelligence vol. 6 (2024), Nr. June
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Artificial intelligence technologies are rapidly advancing. As part of this development, large language models (LLMs) are increasingly being used when humans interact with systems based on artificial intelligence (AI), posing both new opportunities and challenges. When interacting with LLM-based AI system in a goal-directed manner, prompt engineering has evolved as a skill of formulating precise and well-structured instructions to elicit desired responses or information from the LLM, optimizing the effectiveness of the interaction. However, research on the perspectives of non-experts using LLM-based AI systems through prompt engineering and on how AI literacy affects prompting behavior is lacking. This aspect is particularly important when considering the implications of LLMs in the context of higher education. In this present study, we address this issue, introduce a skill-based approach to prompt engineering, and explicitly consider the role of non-experts' AI literacy (students) in their prompt engineering skills. We also provide qualitative insights into students’ intuitive behaviors towards LLM-based AI systems. The results show that higher-quality prompt engineering skills predict the quality of LLM output, suggesting that prompt engineering is indeed a required skill for the goal-directed use of generative AI tools. In addition, the results show that certain aspects of AI literacy can play a role in higher quality prompt engineering and targeted adaptation of LLMs within education. We, therefore, argue for the integration of AI educational content into current curricula to enable a hybrid intelligent society in which students can effectively use generative AI tools such as ChatGPT.
Li, Mahei Manhai ; Nikishina, Irina ; Sevgili, Özge ; Semmann, Martin: Wiping out the limitations of Large Language Models - A Taxonomy for Retrieval Augmented Generation (2024)
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Current research on RAGs is distributed across various disciplines, and since the technology is evolving very quickly, its unit of analysis is mostly on technological innovations, rather than applications in business contexts. Thus, in this research, we aim to create a taxonomy to conceptualize a comprehensive overview of the constituting characteristics that define RAG applications, facilitating the adoption of this technology in the IS community. To the best of our knowledge, no RAG application taxonomies have been developed so far. We describe our methodology for developing the taxonomy, which includes the criteria for selecting papers, an explanation of our rationale for employing a Large Language Model (LLM)-supported approach to extract and identify initial characteristics, and a concise overview of our systematic process for conceptualizing the taxonomy. Our systematic taxonomy development process includes four iterative phases designed to refine and enhance our understanding and presentation of RAG’s core dimensions. We have developed a total of five meta-dimensions and sixteen dimensions to comprehensively capture the concept of Retrieval-Augmented Generation (RAG) applications. When discussing our findings, we also detail the specific research areas and pose key research questions to guide future information system researchers as they explore the emerging topics of RAG systems.
Benner, Dennis ; Schöbel, Sofia ; Janson, Andreas ; Leimeister, Jan Marco:Engaging Minds – How Gamified Chatbots can Support and Motivate Learners in Digital Education.. In: Hawaii International Conference on System Sciences (HICSS). Waikiki, Hawaii, USA, 2024 — ISBN 978-0-9981331-7-1
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Blended and online learning is growing, and self-regulated learning is becoming more relevant. Most often, students struggle with organizing their own learning processes, lose focus or procrastinate. Keeping learners motivated and engaged can be a real challenge. Therefore, we present gamified chatbots as a potential solution. On the one hand, chatbots can provide a more engaging learning experience. On the other hand, gamification can provide motivational incentives to keep learners engaged and motivated. So far, not many studies have elaborated on how gamification can be effectively used to make a chatbot interaction more engaging or improve the learning experience. This study uses an experimental approach to distinguish how a combination of badges and a progress bar can support and motivate learners to stay engaged with their learning activities. We elaborate on the effects of gamified chatbots and support practitioners with guidance on how to design gamified chatbots in education.
Alhamwy, Yasin ; Mertens, Paul ; Hohlfeld, Oliver:Poster: Web Dependency Analyzer to Identify Resource Dependencies and their Impact on Rendering.. In: Proceedings of the 2024 ACM on Internet Measurement Conference, IMC ’24. Madrid, Spain : Association for Computing Machinery, 2024 — ISBN 9798400705922, pp. 793–794
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Modern websites are complex and fetch content from a multitude of different servers or domains. When measuring the complexity of the modern web, an open question is how content that is fetched from these domains contribute to the rendered output of the website. In this poster, we present the Web Dependency Analyzer, a tool that is designed to automatically infer the domains that a website depends on and further analyze the impact of each domain on the rendered output of the site. Our Web Dependency Analyzer instructs a headless web browser to infer the resource dependencies from a large set of input domains and outputs the visual impact of the unavailability of each domain.
Hornung, G.: Individualrechte in der KI-Verordnung. Die Rechte auf Beschwerde und auf Erläuterung der Entscheidungsfindung im Einzelfall. In: Datenschutz und Datensicherheit (2024), pp. 507–512
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Horn, Viktoria ; Hirth, Johannes ; Holfeld, Julian ; Behmenburg, Jens Hendrik ; Draude, Claude ; Stumme, Gerd:Disclosing Diverse Perspectives of News Articles for Navigating between Online Journalism Content.. In: Proceedings of the 13th Nordic Conference on Human-Computer Interaction, NordiCHI ’24. Uppsala, Sweden : Association for Computing Machinery, 2024 — ISBN 9798400709661, pp. 1–14
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Today, exposure to journalistic online content is predominantly controlled by news recommender systems, which often suggest content that matches user’s interests or is selected according to non-transparent recommendation criteria. To circumvent resulting trade-offs like polarisation or fragmentation whilst ensuring user’s autonomy, we explore how different perspectives within online news can be disclosed instead for guiding navigation. To do so, we developed an interactive prototype that displays article titles in correspondence to their argumentative orientation. In order to investigate how the usage of our novel navigation structure impacts the choice of news articles and user experience, we conducted an exploratory user study assessing the impact of the design parameters chosen. Implications are drawn from the study results and the development of the interactive prototype for the exposure to diversity in the context of navigating news content online.
Huseljic, Denis ; Herde, Marek ; Nagel, Yannick ; Rauch, Lukas ; Strimaitis, Paulius ; Sick, Bernhard: The Interplay of Uncertainty Modeling and Deep Active Learning: An Empirical Analysis in Image Classification. In: Transactions on Machine Learning Research (2024)
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Deep active learning (AL) seeks to reduce the annotation costs required for training deep neural networks (DNNs). Often, deep AL strategies focus on instances where the predictive uncertainty of a DNN is high. Furthermore, Bayesian concepts to model uncertainty are frequently adopted. Despite considerable research, a detailed analysis of the role of uncertainty in deep AL is still missing, especially regarding aleatoric and epistemic uncertainty, both related to predictive uncertainty. This article provides an in-depth empirical study analyzing the interplay of uncertainty and deep AL in image classification. Our study investigates four hypotheses that provide an intuitive understanding of the effects of accurately estimating aleatoric and epistemic uncertainty on existing uncertainty-based AL strategies but also, in the opposite direction, the impact of uncertainty-based AL on the quality of uncertainty estimates that are needed in many applications. By analyzing these hypotheses on synthetic and real-world data, we find that accurate aleatoric estimates can even impair instance selection, while accurate epistemic estimates have negligible effects. Moreover, we provide a publicly available toolbox for deep AL with various models and strategies to facilitate further research and practical applications. Code is available at https://github.com/dhuseljic/dal-toolbox.
Krenn, K. ; Kropf, J. ; Laser, S. ; Ochs, C. (eds.):Varieties of Valuation. Rahmungen, Aushandlungen und Widersprüche digitaler Bewertungspraktiken. Wiesbaden : VS, 2024
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Al-Falouji, Ghassan ; Gao, Shang ; Haschke, Lukas ; Nowotka, Dirk ; Tomforde, Sven:Enhancing Maritime Behaviour Analysis through Novel Feature Engineering and Digital Shadow Modelling: A Case Study in Kiel Fjord.. In: International Conference on Architecture of Computing Systems (ARCS) : Springer, 2024, pp. 97–111
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With the continuous evolution of maritime technology, there is a growing need for analysing and modelling vessel behaviour in complex waterway systems. This paper presents an extension and utilisation of the Surface Vessel Nautical Behaviour Analysis (SV-NBA) framework for in-depth spatio-temporal analysis of maritime surface vessels’ behaviour in Kiel Fjord. Leveraging one year of collected Automatic Identification System (AIS) data, we extracted features from the recorded data. Three feature sets are generated and compared using expert-knowledge fea- tures, methods for feature selection, and Denoising Autoencoder latent space representation. Behaviour modelling and analysis utilises clustered data from the three feature sets, employing Gaussian Mixture Models (GMM). The trained GMM models serve as digital shadows, enabling storage-efficient representation of vessel behaviour and facilitates appli- cations such as online situational awareness and marine-traffic manage- ment. These digital shadows serve as observer-layer in a dynamic au- tonomous system of system, offering insights into maritime activities and enhancing navigation safety in busy waterways. This research contributes to the advancement of autonomous navigation systems and supports ef- ficient maritime traffic management strategies.
Al-Falouji, Ghassan ; Beyer, Tom ; Gao, Shang ; Tomforde, Sven:Steering Towards Maritime Safety with True Motion Predictions Ensemble.. In: Workshop on self-improving system integration (SISSY), ACSOS : IEEE, 2024, pp. 7–12
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Maritime transportation is vital for global trade, yet safety challenges persist, especially with increasing vessel density and narrow waterways. The standard Closest Point of Approach (CPA) method, used to estimate collision risk, has limitations due to its reliance on constant Course Over Ground (COG) and Speed Over Ground (SOG) assumptions, neglecting dynamic vessel behaviours, true ship dimensions, and environmental influences. Addressing these limitations, this paper introduces an enhanced CPA (eCPA) method that counters these deficits by incorporating ship trajectory predictions, probabilistic risk assessment, and real-time data integration. The eCPA method includes user- adjustable tools for trajectory interpolation, prediction, and anomaly elimination, making it adaptable to various maritime scenarios. Extensive testing in encounter scenarios demonstrates the effectiveness of our approach in improving maritime safety through robust and probabilistic estimation of encounter points. This method aligns with the Self-Integration and Self-Organising Systems (SISSY) initiative, exhibiting how autonomous maritime operations can benefit from self-improving and self-integrating systems to enhance navigation safety and efficiency.
Hupe, Anna ; Lange, Kirsten ; Bretschneider, Ulrich ; Refflinghaus, Robert:Governing the Crowd: Developing Reference Process Modules for the Governance of the Crowd on Online Labour Platforms.. In: International Working Seminar on Production Economics (IWSPE). Innsbruck, Austria, 2024
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Li, Mahei ; Dickhaut, Ernestine ; Bruhin, Olivia ; Wache, Hendrik ; Weritz, Pauline:More Than Just Efficiency: Impact of Generative AI on Developer Productivity.. In: Americas Conference on Information Systems (AMCIS). Utah, USA, 2024
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The collaboration between genAI and humans in the field of information systems holds transformative potential echoing the co-creation ethos in digital ecosystems. GenAI's automated code generation capabilities present an opportunity for seamless cooperation with human developers. As genAI evolves, it can contribute to the generation of code with minimal human input, enabling developers to focus on higher-level conceptualization and problem-solving. The individual work changes by GenAI also have wider-reaching effects, which requires a holistic understanding of its impact. Our interview study with 15 software developers presents a shift towards a more balanced viewpoint on measuring the effects of genAI in software development environments, specifically the importance of human-centric indicators (e.g. satisfaction and wellbeing) in addition to traditional efficiency and effectiveness indicators. This insight underscores the balancing act between enhancing productivity and potentially undermining it, reflecting the interplay of co-creation and co-destruction in service ecosystems and calling for a more holistic socio- technical perspective.
Huseljic, Denis ; Hahn, Paul ; Herde, Marek ; Rauch, Lukas ; Sick, Bernhard:Fast Fishing: Approximating BAIT for Efficient and Scalable Deep Active Image Classification.. In: European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases (ECMLPKDD), 2024, pp. 280–296
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Deep active learning (AL) seeks to minimize the annotation costs for training deep neural networks. \\textsc{Bait, a recently proposed AL strategy based on the Fisher Information, has demonstrated impressive performance across various datasets. However, \\textsc{Bait's high computational and memory requirements hinder its applicability on large-scale classification tasks, resulting in current research neglecting \\textsc{Bait in their evaluation. This paper introduces two methods to enhance \\textsc{Bait's computational efficiency and scalability. Notably, we significantly reduce its time complexity by approximating the Fisher Information. In particular, we adapt the original formulation by i) taking the expectation over the most probable classes, and ii) constructing a binary classification task, leading to an alternative likelihood for gradient computations. Consequently, this allows the efficient use of \\textsc{Bait on large-scale datasets, including ImageNet. Our unified and comprehensive evaluation across a variety of datasets demonstrates that our approximations achieve strong performance with considerably reduced time complexity. Furthermore, we provide an extensive open-source toolbox that implements recent state-of-the-art AL strategies, available at \\url{https://github.com/dhuseljic/dal-toolbox.
Hornung, G. ; Blättel-Mink, B. ; Helmke, J. T. ; Döben-Henisch, G.-D. ; Lamla, J. ; Limberger, V. ; Ohde, F. ; Reß, B. ; et al.: Nachhaltige Intelligenz–intelligente Nachhaltigkeit: Transdisziplinäre Forschungsperspektiven (2024)
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Nachhaltigkeit und Künstliche Intelligenz sind zwei der Megathemen unserer Zeit. Sie werfen schon je für sich komplexe Herausforderungen wissenschaftlicher und praktischer Art auf, die schon jetzt stark und immer weiter zunehmend Politik, Wirtschaft und Alltagsleben erfassen. Dem vorliegenden Whitepaper liegt die Überzeugung der Autor*innen zugrunde, dass wir trotz der jeweiligen Komplexität Nachhaltigkeit und Künstliche Intelligenz in ihren Wechselwirkungen beobachten und analysieren müssen, weil eine Trennung angesichts der vielfältigen Verflechtungen künstlich wäre und Gefahr liefe, wesentliche Problemlagen, aber auch Handlungsoptionen zu übersehen.
Huseljic, Denis ; Herde, Marek ; Hahn, Paul ; Müjde, Mehmet ; Sick, Bernhard: Systematic Evaluation of Uncertainty Calibration in Pretrained Object Detectors. In: International Journal of Computer Vision vol. 133, Springer (2024), Nr. 3, pp. 1033–1047
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In the field of deep learning based computer vision, the development of deep object detection has led to unique paradigms (e.g., two-stage or set-based) and architectures (e.g., Faster-RCNN or DETR) which enable outstanding performance on challenging benchmark datasets. Despite this, the trained object detectors typically do not reliably assess uncertainty regarding their own knowledge, and the quality of their probabilistic predictions is usually poor. As these are often used to make subsequent decisions, such inaccurate probabilistic predictions must be avoided. In this work, we investigate the uncertainty calibration properties of different pretrained object detection architectures in a multi-class setting. We propose a framework to ensure a fair, unbiased, and repeatable evaluation and conduct detailed analyses assessing the calibration under distributional changes (e.g., distributional shift and application to out-of-distribution data). Furthermore, by investigating the influence of different detector paradigms, post-processing steps, and suitable choices of metrics, we deliver novel insights into why poor detector calibration emerges. Based on these insights, we are able to improve the calibration of a detector by simply finetuning its last layer.
Abdulla, Mohammad ; Hirth, Johannes ; Stumme, Gerd:The Birkhoff Completion of Finite Lattices.. In: Cabrera, I. P. ; Ferré, S. ; Obiedkov, S. (eds.): Conceptual Knowledge Structures. Cham : Springer Nature Switzerland, 2024 — ISBN 978-3-031-67868-4, pp. 20–35
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We introduce the Birkhoff completion as the smallest distributive lattice in which a given finite lattice can be embedded as semi-lattice. We discuss its relationship to implicational theories, in particular to R. Wille's simply-implicational theories. By an example, we show how the Birkhoff completion can be used as a tool for ordinal data science.
Janson, Andreas ; Ernst, Sissy-Josefina: Disentangling the influence of mobile learning usability and its determinants–PLS-SEM and importance-performance investigation. In: Computers and Education Open (CAEO) vol. 7 (2024), Nr. December
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Today, numerous mobile learning applications are used to enable learning during the working process or on-the-go. However, few insights that are available regarding mobile application usability (MAU) and its determinants in the context of mobile learning. More specifically, there is a critical need to disentangle the determinants of MAU and their overall impact on MAU while also acknowledging the possible motivational consequences. Therefore, we developed a theoretical model of MAU, its determinants, and its consequences. By utilizing a free simulation experiment, we investigated the role of MAU in the domain of mobile learning. We used structural equation modeling to analyze the theoretical model. The results show a significant influence of MAU on mobile learning compatibility, performance expectancy, and self-efficacy. The results also indicate that compatibility acts as a partial mediator of usability on performance expectancy. Finally, we conducted an importance-performance analysis that reveals key usability insights: UI output, the most critical factor, underperforms, highlighting a major improvement area. UI structure and application design also need enhancement. In contrast, UI input and application utility perform well despite lower importance, with UI graphics showing adequate performance despite being least crucial. The present paper contributes to the discussion concerning MAU and its impact on mobile learning, while delivering formative insights of MAU for mobile learning applications.
Horn, Viktoria ; Draude, Claude: The Ladder of Data Citizen Participation: A Sociotechnical Lens for Designing Democratic Digital Services in the Data Economy. In: Interacting with Computers, Oxford University Press (OUP) (2024)
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Benner, Dennis:Introducing Generative Feedback to Chatbots in Digital Higher Education.. In: International Conference on Wirtschaftsinformatik (WI). Würzburg, Germany, 2024
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The rapid evolution of the educational landscape, accentuated by the rise of Generative Artificial Intelligence (GAI), calls for a re-evaluation of digital education methodologies to harness new technologies and meet the changing needs of learners. Focusing on the potential of GAI, this study introduces a novel approach called generative feedback and explores its impact on the motivation, learning experience and performance of students in higher education. Therefore, this study presents a prototype that implements a GAI-driven chat using OpenAI’s GPT-4 turbo model to provide feedback to students. Using an overlap�ping study design that combines a longitudinal field study and a two-stage online experiment, this study investigates how generative feedback affects learners. Initial findings suggest that GAI-driven chatbots can provide meaningful feedback to students and enhance their learning experience, setting the stage for further investigation towards a better theoretical understanding of the design and practical application of GAI-driven chatbot feedback.

2023[ to top ]

Botache, Diego ; Dingel, Kristina ; Huhnstock, Rico ; Ehresmann, Arno ; Sick, Bernhard: Unraveling the Complexity of Splitting Sequential Data: Tackling Challenges in Video and Time Series Analysis. In: arXiv e-prints (2023), p. arXiv:2307.14294
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Splitting of sequential data, such as videos and time series, is an essential step in various data analysis tasks, including object tracking and anomaly detection. However, splitting sequential data presents a variety of challenges that can impact the accuracy and reliability of subsequent analyses. This concept article examines the challenges associated with splitting sequential data, including data acquisition, data representation, split ratio selection, setting up quality criteria, and choosing suitable selection strategies. We explore these challenges through two real-world examples: motor test benches and particle tracking in liquids.
Felde, Maximilian ; Stumme, Gerd: Interactive collaborative exploration using incomplete contexts. In: Data & Knowledge Engineering vol. 143, Elsevier BV (2023), p. 102104
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Ohly, S. ; Bastin, L.: Effects of task interruptions caused by notifications from communication applications on strain and performance. In: Journal of Occupational Health vol. 65 (2023), Nr. 1, p. e12408
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Johannes, Paul C. ; Geminn, C. L. ; Nebel, M.: Learning Analytics nach Satzung, Rechtssicherer Einsatz durch Hochschulen. In: Datenschutz und Datensicherheit (2023), pp. 715–720
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Schöbel, Sofia ; Schmitt, Anuschka ; Benner, Dennis ; Saqr, Mohammed ; Janson, Andreas ; Leimeister, Jan Marco: Charting the Evolution and Future of Conversational Agents: A Research Agenda Along Five Waves and New Frontiers. In: Information Systems Frontiers vol. 26, Springer Nature (2023), pp. 729–754
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Conversational agents (CAs) have come a long way from their first appearance in the 1960s to today's generative models. Continuous technological advancements such as statistical computing and large language models allow for an increasingly natural and effortless interaction, as well as domain-agnostic deployment opportunities. Ultimately, this evolution begs multiple questions: How have technical capabilities developed? How is the nature of work changed through humans' interaction with conversational agents? How has research framed dominant perceptions and depictions of such agents? And what is the path forward? To address these questions, we conducted a bibliometric study including over 5000 research articles on CAs. Based on a systematic analysis of keywords, topics, and author networks, we derive "five waves of CA research" that describe the past, present, and potential future of research on CAs. Our results highlight fundamental technical evolutions and theoretical paradigms in CA research. Therefore, we discuss the moderating role of big technologies, and novel technological advancements like OpenAI GPT or BLOOM NLU that mark the next frontier of CA research. We contribute to theory by laying out central research streams in CA research, and offer practical implications by highlighting the design and deployment opportunities of CAs.
Breyer, J. ; Schild, H.-H.: Auslage von Betriebsvereinbarungen mit vertraulichen Daten im Betrieb. In: Der Betrieb vol. 2023 (2023), pp. 2501–2503
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Roßnagel, A. ; Richter, P.:Commentary of Art. 5, Art. 40, Art. 41 General Data Protection Regulation (GDPR).. In: Spiecker, I. ; Papakonstantinou, V. ; Hornung, G. ; de Hert, P. (eds.): General Data Protection Regulation: Article-by-Article Commentary. Baden-Baden / München / Bloomsbury : Nomos / Beck / Hart, 2023 — ISBN 978-3-8487-3372-9
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Kohpeiß, M.: Verpflichtung zur intelligenten Angriffserkennung?. In: Datenschutz und Datensicherheit vol. 2023 (2023), pp. 220–224
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Esterle, Lukas ; Dutt, Nikil ; Gruhl, Christian ; Lewis, Peter R. ; Marcenaro, Lucio ; Regazzoni, Carlo ; Jantsch, Axel:Self-awareness in Cyber-Physical Systems: Recent Developments and Open Challenges.. In: Design, Automation & Test in Europe Conference & Exhibition (DATE) : IEEE, 2023, pp. 1–6
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Self-aware computing systems enable computing systems to reflect on their actions and behavior. This becomes even more relevant in Cyber-Physical Systems where computing systems have to control and interact with elements in the real world. This paper reports on recent advances made in computational self-awareness for cyber-physical systems.
Schöbel, Sofia ; Leimeister, Jan Marco: Metaverse Platform Ecosystems. In: Electronic Markets (Electron Markets) vol. 33 (2023), Nr. 12, pp. 1–10
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Traditionally, the metaverse has been defined as a virtual reality space in which users can interact with a computer-generated environment and other users. Nowadays, it is much more than that—the metaverse can be described as a variety of digital platforms and ecosystems, with each ecosystem as an independent universe with its own material, complementors, and functionalities. Creating metaverse ecosystems and integrated platforms results in different roles and responsibilities for complementors, consumers, platform owners, and orchestrators. The term metaverse platforms is further structured and clarified by four perspectives: innovation, production, transaction, and social interaction. Consequently, this fundamental paper defines it as: “A Metaverse is a massively scaled and interoperable meta-ecosystem of other digital ecosystems of real-time rendered 3D virtual worlds which can be experienced synchronously and persistently by an unlimited number of complementors and consumers with an increased user experience caused by a creativity-guided co-creation of goods managed by orchestrators and supported by platform owners.” Consequently, the metaverse offers vast opportunities for digital innovations beyond traditional social media or computer games and creates new infrastructures for add-on innovations in all areas of the digital economy.
Johannes, Paul C. ; Geminn, Christian: Anonymisierung von Patientendaten durch Fremdlabore für Dritte – Zur anonymisierenden Wirkung der Pseudonymisierung; datenschutzrechtliche Darstellung anhand eines Fallbeispiels. In: Medizinrecht (2023), Nr. 5, pp. 368–372
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Schöbel, Sofia ; Tingelhoff, Fabian: Overcoming Challenges to Enable the Potential of Metaverse Platforms. In: AIS Transactions on Human-Computer Interaction (THCI) vol. 15 (2023), Nr. 1, pp. 1–21
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Metaverse is the buzzword of modern society. Practitioners and researchers have discussed metaverse platforms extensively, but the potential and meaning of the metaverse remain controversial. In this paper, we investigate and identify challenges that enable the potential of metaverse platforms. If these challenges are overcome, there will be value creation for practitioners, organizations, and society. We used a qualitative approach whereby we interviewed 34 metaverse experts to identify the challenges, potential, and value associated with the metaverse. Our results demonstrate that technical and societal challenges obstruct the ability to handle user-related and organizational challenges. If these challenges can be overcome, we can use the opportunities that our participants identified to create functional, social, and emotional value. Our work theoretically contributes to current knowledge on metaverse platforms by elaborating on handling metaverse platform ecosystems and determining instrumental challenges in their realization. With our qualitative approach, we provide room and directions for future research to develop a better understanding of the role and meaning of value creation in the metaverse. Our findings are useful to practitioners by presenting challenges organizations must overcome to create metaverse platforms or participate in a metaverse ecosystem. Furthermore, we present opportunities for vendors of metaverse platforms and organizations by identifying relevant processes that can be transferred into the metaverse.
Huseljic, Denis ; Herde, Marek ; Hahn, Paul ; Sick, Bernhard:Role of Hyperparameters in Deep Active Learning.. In: Workshop on Interactive Adaptive Learning (IAL), ECML PKDD, 2023, pp. 19–24
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Despite considerable research on pool-based deep active learning (DAL), deploying DAL into real applications still has several challenges. A frequently neglected aspect is the choice of training hyperparameters (HPs), such as the learning rate. Since these HPs determine how the deep neural network learns in each cycle, they must be chosen carefully. In this article, we analyze the role of HPs in DAL. We find that optimizing HPs reduces the performance gap between DAL strategies. Conversely, we highlight challenges in finding optimal HPs when using datasets selected via DAL strategies.
Freise, Leonie Rebecca ; Bretschneider, Ulrich:Automized Assessment for Professional Skills – A Systematic Literature Review and Future Research Avenues.. In: Internationale Tagung Wirtschaftsinformatik (WI). Paderborn, Germany, 2023
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Globalization, technological progress, and demographic trends increasingly influence our labor markets. With changing labor markets and increasing digitalization, new competencies of workers are needed to meet demands. However, as a first step to developing these new skills, knowledge about the existing skills and their status quo is necessary. Here, automated skill assessment offers a crucial added value, as it can create a reliable and objective database. Based on a systematic investigation, our analysis shows, in four different areas, how skills and competencies in the automated assessment are (1) defined, (2) included as an element of analysis, (3) methodically recorded and processed, (4) which data source is used. In doing so, we offer insights into existing approaches to automated assessment of professional skills. We contribute to a better under-standing of the design of automated skill assessment methods and provide perspectives on future research directions.
Ohde, Franziska ; Blättel-Mink, Birgit ; Draude, Claude ; Spiecker gen. Döhmann, Indra: Geschlechtergerechtigkeit im Spannungsfeld von nachhaltiger und digitaler Transformation – eine interdisziplinäre Annäherung. In: GENDER – Zeitschrift für Geschlecht, Kultur und Gesellschaft vol. 15, Verlag Barbara Budrich (2023), Nr. 2, pp. 132–147
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Die Sustainable Development Goals (SDGs) der Vereinten Nationen streben anhand von SDG 5 danach, die Gleichheit der Geschlechter im globalen Kontext herzustellen. Wir zeigen, dass der aktuelle, global angelegte Nachhaltigkeitsdiskurs nicht nur blinde Flecken im Hinblick auf die konsequente Bekämpfung geschlechtsspezifischer Ungleichheiten aufweist, sondern auch einen wenig reflektierten Umgang mit der digitalen Transformation pflegt. Mögliche Ansätze zur Bewältigung des identifizierten Spannungsfeldes sehen wir in einer gendersensiblen IT-Gestaltung, einem digitalen Gleichstellungsgesetz und der konsequenten Bewertung von Folgen der globalen Nachhaltigkeitspolitik und -forschung im Hinblick auf Diskriminierung.
Geminn, C.:Deus ex machina? – Grundrechte und Digitalisierung. Jus Publicum – Beiträge zum Öffentlichen Recht. Tübingen : Mohr Siebeck, 2023
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Li, Mahei Manhai ; Löfflad, Denise ; Reh, Cornelius ; Oeste-Reiß, Sarah:Towards the design of hybrid intelligence frontline service technologies – A novel human-in-the-loop configuration for human machine interactions.. In: Hawaii International Conference on System Sciences (HICSS). Maui, Hawaii, 2023
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Lehna, Malte ; Viebahn, Jan ; Marot, Antoine ; Tomforde, Sven ; Scholz, Christoph: Managing power grids through topology actions: A comparative study between advanced rule-based and reinforcement learning agents. In: Energy and AI vol. 14, Energy and AI (2023), p. 100276
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The operation of electricity grids has become increasingly complex due to the current upheaval and the increase in renewable energy production. As a consequence, active grid management is reaching its limits with conventional approaches. In the context of the Learning to Run a Power Network (L2RPN) challenge, it has been shown that Reinforcement Learning (RL) is an efficient and reliable approach with considerable potential for automatic grid operation. In this article, we analyse the submitted agent from Binbinchen and provide novel strategies to improve the agent, both for the RL and the rule-based approach. The main improvement is a N-1 strategy, where we consider topology actions that keep the grid stable, even if one line is disconnected. More, we also propose a topology reversion to the original grid, which proved to be beneficial. The improvements are tested against reference approaches on the challenge test sets and are able to increase the performance of the rule-based agent by 27%. In direct comparison between rule-based and RL agent we find similar performance. However, the RL agent has a clear computational advantage. We also analyse the behaviour in an exemplary case in more detail to provide additional insights. Here, we observe that through the N-1 strategy, the actions of both the rule-based and the RL agent become more diversified.
Schreiber, Jens ; Sick, Bernhard: Model selection, adaptation, and combination for transfer learning in wind and photovoltaic power forecasts. In: Energy and AI vol. 14 (2023), p. 100249
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There is recent interest in using model hubs – a collection of pre-trained models – in computer vision tasks. To employ a model hub, we first select a source model and then adapt the model for the target to compensate for differences. There still needs to be more research on model selection and adaption for renewable power forecasts. In particular, none of the related work examines different model selection and adaptation strategies for neural network architectures. Also, none of the current studies investigates the influence of available training samples and considers seasonality in the evaluation. We close these gaps by conducting the first thorough experiment for model selection and adaptation for transfer learning in renewable power forecast, adopting recent developments from the field of computer vision on 667 wind and photovoltaic parks from six datasets. We simulate different amounts of training samples for each season to calculate informative forecast errors. We examine the marginal likelihood and forecast error for model selection for those amounts. Furthermore, we study four adaption strategies. As an extension of the current state of the art, we utilize a Bayesian linear regression for forecasting the response based on features extracted from a neural network. This approach outperforms the baseline with only seven days of training data and shows that fine-tuning is not beneficial with less than three months of data. We further show how combining multiple models through ensembles can significantly improve the model selection and adaptation approach such that we have a similar mean error with only 30 days of training data which is otherwise only possible with an entire year of training data. We achieve a mean error of 9.8 and 14 percent for the most realistic dataset for PV and wind with only seven days of training data.
Janson, Andreas: How to leverage anthropomorphism for chatbot service interfaces: The interplay of communication style and personification. In: Computers in Human Behavior, Elsevier (2023), Nr. December
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Although chatbots are oftentimes used in customer service encounters, interactions are oftentimes perceived as not satisfactory. One key aspect for designing chatbots is the use of anthropomorphic design elements. In this experimental study, we examine the two anthropomorphic chatbot design elements of personification, which includes a human-like appearance, and social orientation of communication style, which means a more sensitive and extensive communication. We tested the influence of the two design elements on social presence, satisfaction, trust and empathy towards a chatbot. First, the results show a significant influence of both anthropomorphic design elements on social presence. Second, our findings illustrate that social presence influences trusting beliefs, empathy, and satisfaction. Third, social presence acts as a mediator for both anthropomorphic design elements for satisfaction with a chatbot. Our implications provide a better understanding of anthropomorphic chatbot design elements when designing chatbots for short-term interactions, and we offer actionable implications for practice that enable more effective chatbot implementations.
Janson, Andreas ; Schmidt-Kraepelin, Manuel ; Schöbel, Sofia ; Sunyaev, Ali: Special Issue Editorial: Adaptive and Intelligent Gamification Design. In: AIS Transactions on Human-Computer Interaction (THCI) vol. 15 (2023), Nr. 2, pp. 136–145
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This editorial provides an overview of the three accepted papers for the AIS THCI special issue on adaptive and intelligent gamification designs. The first paper examines conversational agents and how one can use gamification to make the design more engaging. The second study focuses on mobile fitness apps and analyzes the role that personality plays in apps and game designs. Finally, the third paper examines gamification in a virtual laboratory environment. Aligned with current work, we present future research directions that involve generative AI, the metaverse, and a shift in gamification research and practice in the future.
Gao, Nan ; Nolan, Sam ; Ji, Kaixin ; Khan Rumi, Shakila ; Heinisch, Judith Simone ; Anderson, Christoph ; David, Klaus ; Salim, Flora D: Investigating Emotions, Social Roles, Well-being and Mobile Usage Behaviors During COVID-19 Home Confinement. In: arXiv preprint arXiv:2310.13304 (2023)
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Janson, Andreas ; Schmitt, Anuschka ; Bevilacqua, Tatjana:Disentangling Trust in Voice Assistants - A Configurational View on Conversational AI Ecosystems.. In: Annual Meeting of the Academy of Management (AOM). Boston, Massachusetts, USA, 2023
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Voice assistants’ (VAs) increasingly nuanced and natural communication via artificial intelligence (AI) opens up new opportunities for the experience of users, providing task assistance and automation possibilities, and also offer an easy interface to digital services and ecosystems. However, VAs and according ecosystems face various problems, such as low adoption and satisfaction rates as well as other negative reactions from users. Companies, therefore, need to consider what contributes to user satisfaction of VAs and related conversational AI ecosystems. Key for conversational AI ecosystems is the consideration of trust due to their agentic and pervasive nature. Nonetheless, due to the complexity of conversational AI ecosystems and different trust sources involved, we argue that we need a more detailed understanding about trust. Thus, we propose a configurational view on conversational AI ecosystems that allows us to disentangle the complex and interrelated factors that contribute to trust in VAs. We examine with a configurational approach and a survey study, how different trust sources contribute to the outcomes of conversational AI ecosystems, i.e., in our case user satisfaction. The results of our study show four distinct patterns of trust source configurations. Vice versa, we show how trust sources contribute to the absence of the outcome, i.e., user satisfaction. The derived implications provide a configurative theoretical understanding for the role of trust sources for user satisfaction that provides practitioners useful guidance for more trustworthy conversational AI ecosystems.
Ganter, Bernhard ; Hanika, Tom ; Hirth, Johannes:Scaling Dimension.. In: Dürrschnabel, D. ; López-Rodríguez, D. (eds.): Formal Concept Analysis - 17th International Conference, ICFCA 2023, Kassel, Germany, July 17-21, 2023, Proceedings, Lecture Notes in Computer Science. vol. 13934 : Springer, 2023, pp. 64–77
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Engert, Simon ; Kropf, Jonathan ; Uhlmann, Markus:Privacy-Trade-offs: Zur Rolle technischer und regulativer Datenschutzinitiativen im Ökosystem des digitalen Journalismus.. In: Friedewald, M. ; Roßnagel, A. ; Neuburger, R. ; Bieker, F. ; Hornung, G. (eds.): Daten-Fairness in einer globalisierten Welt. Baden-Baden : Nomos Verlagsgesellschaft, 2023, pp. 145–170
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Ochs, Carsten:Polarisierung durch Targeting? Anmerkungen zur datenbasierten Schließung sozialer Erfahrungsspielräume.. In: Villa Braslavsky, P.-I. (ed.): Polarisierte Welten. Verhandlungen des 41. Kongresses der Deutschen Gesellschaft für Soziologie in Bielefeld 2022, 2023
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Langes, Barbara ; Peters, Christoph ; Reinhard, Philipp ; Li, Mahei Manhai ; Hermann, Sophia ; Katzenberger, Rebecca ; Boes, Andreas ; Leimeister, Jan Marco:Hybrid Intelligence Service Support.. In: Langes, B. ; Peters, C. ; Boes, A. ; Leimeister, J. M. (eds.): Innovationen für datenbasierte Wertschöpfung. Mit internetbasierten Dienstleistungen die Zukunft der Wirtschaft gestalten. München : ISF München, 2023, pp. 37–49
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Langes, Barbara ; Peters, Christoph ; Boes, Andreas ; Leimeister, Jan Marco:Innovationen für datenbasierte Wertschöpfung. Mit internetbasierten Dienstleistungen die Zukunft der Wirtschaft gestalten. München : ISF München, 2023
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Lange, Kirsten ; Refflinghaus, Robert ; Hupe, Anna ; Bretschneider, Ulrich:Establishing a Comprehensive Quality Management for the Use of Crowd-based Mechanisms by SMEs.. In: International Conference on Production Research (ICPR). Cluj-Napoca, Romania, 2023
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This paper describes a concept to adapt the design of quality management in SMEs to better exploit the potential of crowdworking. It shows how the quality management, especially of SMEs, can be organised to make efficient and targeted use of work perfomed by crowd-based mechanisms and continue to ensure that customer requirements are met. The different forms of crowd-based mechanisms will be discussed. Barriers of SMEs in adopting crowdsourcing and strategies to overcome them will be identified. A modular reference process model for the quality-oriented use of crowdworking in SMEs will be developed. In addition, concrete recommendations for action to adapt or supplement the design of quality management in SMEs for the efficient and effective use of crowd-based mechanisms will be given.
Freise, Leonie Rebecca ; Hupe, Anna:Transferring Digital Twin Technology on Employee Skills: A Framework to Support Human Resources.. In: Academy of Management Annual Meeting (AOM). Boston, Massachusetts, USA, 2023
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Skill assessment has become increasingly important in recent years. The shortage of skilled workers has demonstrated the need to identify suitable candidates for jobs and to develop existing employees. However, human resources processes rely on resumes, references, or job certifications to assess their employees’ skills. A few years ago, the concept of a digital twin was introduced, which is a digital replica of a physical entity. While using blockchain, the digital twin technology offers tremendous potential for transfer to other contexts. In the context of these considerations, we present a framework that allows the technology of the digital twin to be combined with that of skill assessment to create an enhanced skill profile. With a job market signaling perspective, we integrate knowledge about skills, clarify the opportunities of assessment, and develop a framework for a digital skill twin. In doing so, we argue that the multi-source and multi-method approach of such a digital skill twin leads to increased validity, reliability, and standardization. We thereby contribute to theory and practice by developing a new framework that offers employees to know their strengths and development potential and organizations to assess their employees’ skills.
Nivarthi, Chandana Priya ; Vogt, Stephan ; Sick, Bernhard: Multi-Task Representation Learning for Renewable-Power Forecasting: A Comparative Analysis of Unified Autoencoder Variants and Task-Embedding Dimensions. In: Machine Learning and Knowledge Extraction (MAKE) vol. 5, MDPI (2023), Nr. 3, pp. 1214–1233
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Typically, renewable-power-generation forecasting using machine learning involves creating separate models for each photovoltaic or wind park, known as single-task learning models. However, transfer learning has gained popularity in recent years, as it allows for the transfer of knowledge from source parks to target parks. Nevertheless, determining the most similar source park(s) for transfer learning can be challenging, particularly when the target park has limited or no historical data samples. To address this issue, we propose a multi-task learning architecture that employs a Unified Autoencoder (UAE) to initially learn a common representation of input weather features among tasks and then utilizes a Task-Embedding layer in a Neural Network (TENN) to learn task-specific information. This proposed UAE-TENN architecture can be easily extended to new parks with or without historical data. We evaluate the performance of our proposed architecture and compare it to single-task learning models on six photovoltaic and wind farm datasets consisting of a total of 529 parks. Our results show that the UAE-TENN architecture significantly improves power-forecasting performance by 10 to 19% for photovoltaic parks and 5 to 15% for wind parks compared to baseline models. We also demonstrate that UAE-TENN improves forecast accuracy for a new park by 19% for photovoltaic parks, even in a zero-shot learning scenario where there is no historical data. Additionally, we propose variants of the Unified Autoencoder with convolutional and LSTM layers, compare their performance, and provide a comparison among architectures with different numbers of task-embedding dimensions. Finally, we demonstrate the utility of trained task embeddings for interpretation and visualization purposes.
Funk, J. ; Schmidt, L.: Vergleichende Evaluation von Explorationsarten in interaktiven 3D-360°-Anwendungen: Einsatz von explorativem Lernen zur Vorbereitung von Handwerkern auf Vor-Ort-Termine beim Kunden. In: Medienpädagogik : Zeitschrift für Theorie und Praxis der Medienbildung (2023), Nr. 51, pp. 297–321
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Die vorliegende Studie vergleicht drei Arten des explorativen Lernens mit interaktiven 3D-360°-Anwendungen. Als Szenarien für die Anwendung werden simulierte Vor-Ort-Ter-mine von Handwerkern beim Kunden verwendet. In den Handwerksszenarien «Maler», «Elektriker» und «Klempner» sollen handwerksübliche Arbeitsaufgaben zur Vorbereitung auf reale Vor-Ort-Termine mit verschiedenen Explorationsarten durchgeführt werden. In Art A werden Arbeitsabläufe von einer Fachperson im Video durchgeführt und vom Nutzer beobachtet. In Art B werden arbeitsaufgabenrelevante Stellen in der gezeigten Umgebung durch «!»-Symbole markiert. In Art C werden keine Markierungen eingesetzt, relevante Stellen müssen vom Nutzer entdeckt werden. Die Studie mit 30 Teilnehmern im Within-Subject-Design prüft unter anderem die Hypothesen, ob sich die Explorationsart auf die Gebrauchstauglichkeit (SUS), das Benutzungserlebnis (UEQ) und die eingenomme-ne Rolle der nutzenden Person (aktiv/passiv) auswirkt. Bei allen Explorationsarten liegt eine vergleichbar hohe Gebrauchstauglichkeit vor. Das Benutzungserlebnis ist sowohl in Art B als auch in Art C signifikant höher als in Art A. In Art C wird die eigene Nutzerrolle aktiver eingeschätzt als in Art A und B. Art B ist wiederum aktiver als Art A. Das bessere Benutzungserlebnis und die aktivere Rolle der nutzenden Person bei gleichbleibend ho-her Gebrauchstauglichkeit machen die Explorationsarten B (markierte Stellen) und C (un-markierte Umgebung) interessant für die Wissensvermittlung von praktischen Inhalten
Nivarthi, Chandana Priya ; Sick, Bernhard:Towards Few-Shot Time Series Anomaly Detection with Temporal Attention and Dynamic Thresholding.. In: International Conference on Machine Learning and Applications (ICMLA) : IEEE, 2023, pp. 1444–1450
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Anomaly detection plays a pivotal role in diverse realworld applications such as cybersecurity, fault detection, network monitoring, predictive maintenance, and highly automated driving. However, obtaining labeled anomalous data can be a formidable challenge, especially when anomalies exhibit temporal evolution. This paper introduces LATAM (Long short-term memory Autoencoder with Temporal Attention Mechanism) for few-shot anomaly detection, with the aim of enhancing detection performance in scenarios with limited labeled anomaly data. LATAM effectively captures temporal dependencies and emphasizes significant patterns in multivariate time series data. In our investigation, we comprehensively evaluate LATAM against other anomaly detection models, particularly assessing its capability in few-shot learning scenarios where we have minimal examples from the normal class and none from the anomalous class in the training data. Our experimental results, derived from real-world photovoltaic inverter data, highlight LATAM’s superiority, showcasing a substantial 27% mean F1 score improvement, even when trained on a mere two-week dataset. Furthermore, LATAM demonstrates remarkable results on the open-source SWaT dataset, achieving a 12% boost in accuracy with only two days of training data. Moreover, we introduce a simple yet effective dynamic thresholding mechanism, further enhancing the anomaly detection capabilities of LATAM. This underscores LATAM’s efficacy in addressing the challenges posed by limited labeled anomalies in practical scenarios and it proves valuable for downstream tasks involving temporal representation and time series prediction, extending its utility beyond anomaly detection applications.
Oeste-Reiß, Sarah ; Söllner, Matthias ; Leimeister, Jan Marco:Collaborative Work Practices for Management Education: Using Collaboration Engineering to Design a Reusable and Scalable Collaborative Learning Instructional Design.. In: Hawaii International Conference on System Sciences (HICCS). Maui, Hawaii, USA, 2023
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Pandemics like COVID-19 highlight the needs and pitfalls of inclusive and equitable education in a digital society. IT-based instructional designs are needed to increase learners’ expertise, and to develop higher-order thinking skills. Instructional designs for collaborative learning (CL) seem to be a promising solution. However, they are mostly suitable for face-to-face and not for distance teaching. The core problem that impedes their reusability and scalability is a ‘collaboration problem’ for which collaboration engineering (CE) provides guidance. Therefore, we deploy a design science research study and contribute to CL and CE literature. We develop requirements and provide the design of an IT-based collaborative work practice fostering CL. We provide empirical evidence with an online experiment in a large-scale lecture with undergraduate business information students. This reveals that groups of learners who followed our CL experience achieve higher levels of expertise than those who followed a traditional ad hoc CL experience.
Schreck, Steven ; Reichert, Hannes ; Hetzel, Manuel ; Doll, Konrad ; Sick, Bernhard:Height Change Feature Based Free Space Detection.. In: International Conference on Control, Mechatronics and Automation (ICCMA) : IEEE, 2023, pp. 171–176
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We present a novel method for free space detection in dynamic environments like factory sites, crucial for autonomous forklifts to avoid collisions. It introduces a technique for fast surface normal estimation using spherical projected LiDAR data, which helps in detecting free space efficiently and in real-time. The method's effectiveness is proven with a 50.90% mIoU score on the Semantic KITTI dataset at 105 Hz, and a 63.30% mIoU score on a factory site dataset at 54 Hz.
Oeste-Reiß, Sarah ; Söllner, Matthias ; Leimeister, Jan Marco:Transferring Well-Performing Collaborative Work Practices with Parameterized Templates and Guidebooks: Empowering Subject Matter Experts for an Adaptation to Slightly Different Contexts.. In: Hawaii International Conference on System Sciences (HICSS). Maui, Hawaii, USA, 2023
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Collaborative work practices (CWPs) package facilitation expertise and have the potential to increase team productivity up to 90%. Collaboration engineers develop CWPs and deploy them to practitioners that execute them. These CWPs, however, are typically customized to conditions of a specific use case. This creates the challenge that changing use case conditions or even small variations across contexts, hinder well-performing CWPs of being applied more often to create a long-term value. Practitioners fail to adapt existing CWPs due to missing collaboration expertise and adaptation guidelines. To address this challenge in collaboration engineering literature, we introduce a) the Subject Matter Expert role; b) the ‘CWP Adaptation Approach’ that formalizes the transfer of CWPs to different contexts with parameterized Templates and Guidebooks. To show a first proof-of-concept, we further inductively generalize from an exemplarily use case with a well-performing CWP in the educational domain.
Friedrichs, J. ; Ohly, S.: Considering Time: A Conceptual Model of Team Influences on Entrepreneurial Self-Efficacy Over Time. In: Academy of Management Proceedings vol. 2023 (2023), Nr. 1, p. 18584
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Breitenstein, Jasmin ; Heidecker, Florian ; Lyssenko, Maria ; Bogdoll, Daniel ; Bieshaar, Maarten ; Zöllner, J. Marius ; Sick, Bernhard ; Fingscheidt, Tim:What Does Really Count? Estimating Relevance of Corner Cases for Semantic Segmentation in Automated Driving.. In: Workshop on roBustness and Reliability of Autonomous Vehicles in the Open-world (BRAVO), ICCV, 2023, pp. 3991–4000
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In safety-critical applications such as automated driving, perception errors may create an imminent risk to vulnerable road users (VRU). To mitigate the occurrence of unexpected and potentially dangerous situations, so-called corner cases, perception models are trained on a huge amount of data. However, the models are typically evaluated using task-agnostic metrics, which do not reflect the severity of safety-critical misdetections. Consequently, misdetections with particular relevance for the safe driving task should entail a more severe penalty during evaluation to pinpoint corner cases in large-scale datasets. In this work, we propose a novel metric IoUw that exploits relevance on the pixel level of the semantic segmentation output to extend the notion of the intersection over union (IoU) by emphasizing small areas of an image affected by corner cases. We (i) employ IoUw to measure the effect of pre-defined relevance criteria on the segmentation evaluation, and (ii) use the relevance-adapted IoUw to refine the identification of corner cases. In our experiments, we investigate vision-based relevance criteria and physical attributes as per-pixel criticality to factor in the imminent risk, showing that IoUw precisely accentuates the relevance of corner cases.
Friedewald, M. ; Roßnagel, A. ; Neuburger, R. ; Bieker, F. ; Hornung, G. (eds.):Daten-Fairness in einer globalisierten Welt. Baden-Baden : Nomos Verlagsgesellschaft, 2023
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Niessen, C. ; Melchers, K.G. ; Ohly, S. ; Fay, D. ; Handke, L. ; Kern, M.: Fachgruppe Arbeits-, Organisations-und Witschaftspsychologie. In: Psychologische Rundschau (2023)
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Schöbel, Sofia ; Karatas, Jasmin ; Tingelhoff, Fabian ; Leimeister, Jan Marco:Not everything is a Metaverse?! A Practitioners Perspective on Characterizing Metaverse Platforms.. In: Proceedings of the Hawaii International Conference of System Science (HICSS). vol. 56. Maui, Hawaii, USA, 2023
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Organizations claim to host what is called a metaverse – an extended version of our real world. First rudimental realizations of such metaverses can be found throughout the internet, e.g., Epic Game’s Fortnite. At the same time, research and practice struggle to specify what a metaverse truly is and how we can characterize it. With our work, we analyze the proximity of the realization of a holistic metaverse platform and present the results of a qualitative interview study (n=30). The goal of our work is to use the expertise of practitioners to discuss different examples that claim to represent a metaverse, e.g., Second Life and Decentraland. To achieve this goal, we develop a typology we call the Metagon and use it to evaluate existing metaverse platforms. We contribute to theory by clarifying the meaning of metaverse platforms. Practitioners are guided by a demonstration of metaverse characteristics.
Löber, LI ; König, I ; Lange, S ; David, K ; Roßnagel, A:Handlungsbroschüre. Privacy by Design am Beispiel der kollaborativen kontextsensitiven NORA-App zur Kommunikationsunterstützung von Wissensarbeit. Handlungsempfehlungen zur Gestaltung von kollaborativen kontextsensitiven mobilen Anwendungen und Algorithmen nach normativen Anforderungen des Datenschutzrechts und der Informatik ( Nr. Band 15) : ITeG Technical Reports, kassel university press, 2023
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Eider, Markus ; Sick, Bernhard ; Berl, Andreas: Context-aware recommendations for extended electric vehicle battery lifetime. In: Sustainable Computing: Informatics and Systems (SUSCOM) vol. 37, Elsevier (2023), p. 100845
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Electric vehicles are a means of reducing CO2 emissions in transportation. However, the sustainability of electric vehicle batteries is affected by battery health degradation, which decreases their overall lifetime. This results in a substantial amount of depleted batteries due to replacements. Users have a major impact on battery health degradation through their actions while handling electric vehicles, such as the use of fast charging. To mitigate this problem, this article presents a methodology to generate user guidance for batteryfriendly actions in the upcoming use. Therefore, we first identify general recommendations from related work and combine them with the vehicle context in order to define context-aware recommendations in the form of if–then rules. These context-aware recommendations are then used to generate user advice. Second, the article covers how to predict the vehicle context in order to determine necessary recommendations. Third, a prescriptive recommendation system architecture is proposed, which takes vehicle context information, and produces user guidance. Finally, we test the proposed architecture using fuzzy logic as decision system. Overall, the architecture provides satisfactory user advice
Engert, Simon ; Horn, Viktoria ; Draude, Claude ; Hess, Thomas:Integrating Multiple Logics by Design? Developing an Approach for Designing Digital Business Models.. In: ACIS 2023 Proceedings, 2023
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Current approaches to the design and development of digital business models (DBMs) overlook the multiple, and sometimes conflicting, logics of actors with which the focal firm seeks to co-create value. The lack of integrating stakeholders’ logics into DBMs has potentially detrimental and unintended ethical and social consequences. By collaboratively conducting an action research project with a digital publisher and drawing on participatory and value-sensitive design principles, we develop a novel approach for designing DBMs that integrates actors’ multiple logics by design. We contribute to literature by introducing a new approach highlighting DBMs’ inherent social aspects and furthering our understanding of multiple logics’ role in DBMs. Practitioners gain a concrete DBM design method preempting conflict.
Renner, M. ; Lins, S. ; Söllner, M. ; Jarvenpaa, S. ; Sunyaev, A.:Artificial Intelligence-Driven Convergence and its Moderating Effect on Multi-Source Trust Transfer.. In: Hawaii International Conference on System Sciences, Maui, Hawaii, USA, 2023
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Artelt, André ; Geminn, Christian ; Hammer, Barbara ; Horstmann, Aike ; Krämer, Nicole ; Manzeschke, Arne ; Preuß, Antonia ; Weber, Carina:Gesundheits-Apps und Digitale Gesundheitsanwendungen (DiGAs) – Ethische, rechtliche, psychologische und informatische Perspektive : Universität Duisburg-Essen, 2023
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Smith, Jamie B. ; Klumbytė, Goda ; Sidebottom, Kay ; Dillard-Wright, Jess ; Willis, Eva ; Brown, Brandon B. ; Hopkins-Walsh, Jane: We all care, ALL the time. In: Nursing Inquiry, Wiley (2023)
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Purohit, Aditya Kumar ; Barev, Torben Jan ; Schöbel, Sofia ; Janson, Andreas ; Holzer, Adrian:Designing for Digital Wellbeing on a Smartphone: Co-creation of Digital Nudges to Mitigate Instagram Overuse.. In: Hawaii International Conference on System Sciences (HICSS). Maui, Hawaii, USA, 2023
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The endless stream of social media newsfeeds and stories captivates users for hours on end, sometimes exceeding what users themselves consider unhealthy. However, reducing one's social media consumption has proven to be challenging. To address this issue, this study investigates how the co-creation of the digital feedback nudge can improve digital well-being without increasing privacy threats. To achieve this goal, a mixed method study is used through a two-week pre-post study design. Results demonstrate that co-creation significantly increased users' sense of agency, sense of accomplishment and perceived sense of privacy while reducing users' privacy concern. Furthermore, the feedback nudge allowed participants to significantly decrease their social media use.
Rauch, Lukas ; Aßenmacher, Matthias ; Huseljic, Denis ; Wirth, Moritz ; Bischl, Bernd ; Sick, Bernhard:ActiveGLAE: A Benchmark for Deep Active Learning with Transformers.. In: European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases (ECMLPKDD) : Springer, 2023, pp. 55–74
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Deep active learning (DAL) seeks to reduce annotation costs by enabling the model to actively query instance annotations from which it expects to learn the most. Despite extensive research, there is cur- rently no standardized evaluation protocol for transformer-based lan- guage models in the field of DAL. Diverse experimental settings lead to difficulties in comparing research and deriving recommendations for prac- titioners. To tackle this challenge, we propose the ActiveGLAE bench- mark, a comprehensive collection of data sets and evaluation guidelines for assessing DAL. Our benchmark aims to facilitate and streamline the evaluation process of novel DAL strategies. Additionally, we provide an extensive overview of current practice in DAL with transformer-based language models. We identify three key challenges - data set selection, model training, and DAL settings - that pose difficulties in comparing query strategies. We establish baseline results through an extensive set of experiments as a reference point for evaluating future work. Based on our findings, we provide guidelines for researchers and practitioners.
Klumbytė, Goda ; Piehl, Hannah ; Draude, Claude: Towards Feminist Intersectional XAI: From Explainability to Response-Ability (2023). — Workshop Human-Centered Explainable AI (HCXAI), ACM Conference on Human Factors in Computing Systems CHI 23, April 23-28, 2023, Hamburg, Germany
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This paper follows calls for critical approaches to computing and conceptualisations of intersectional, feminist, decolonial HCI and AI design and asks what a feminist intersectional perspective in HCXAI research and design might look like. Sketching out initial research directions and implications for explainable AI design, it suggests that explainability from a feminist perspective would include the fostering of response-ability - the capacity to critically evaluate and respond to AI systems - and would centre marginalised perspectives.
Klumbytė, Goda ; Piehl, Hannah ; Draude, Claude: Feminist epistemology for machine learning systems design (2023). — Workshop A Toolbox of Feminist Wonder - Theories and methods that can make a difference, Conference on Computer-Supported Cooperative Work and Social Computing CSCW 23, October 14-18, 2023, Minneapolis, MN, USA, 5 pages
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This paper presents a series of feminist epistemological concepts as tools for developing critical, more accountable, and contextualised approaches to machine learning systems design. Namely, we suggest that the methods of situated knowledges or situating, figurations or figuring, diffraction or diffracting, and critical fabulation or speculation can be productively actualised in the field of machine learning systems design. We also suggest that the meta-method for doing this actualisation requires not so much translation but transposition - a creative and critical adaptation to speak to machine learning contexts.
Anderson, Christoph ; Heinisch, Judith Simone ; Deldari, Shohreh ; Salim, Flora ; Ohly, Sandra ; David, Klaus ; Pejović, Veljko: Toward Social Role-Based Interruptibility Management. In: IEEE Pervasive Computing vol. 22 (2023), Nr. 1, pp. 59–68
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Rauch, Lukas ; Schwinger, Raphael ; Wirth, Moritz ; Sick, Bernhard ; Tomforde, Sven ; Scholz, Christoph:Active Bird2Vec: Towards End-To-End Bird Sound Monitoring with Transformers.. In: Workshop on Artificial Intelligence for Sustainability (AI4S), ECAI, 2023, pp. 1–6
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We propose a shift towards end-to-end learning in bird sound monitoring by combining self-supervised (SSL) and deep active learning (DAL). Leveraging transformer models, we aim to bypass traditional spectrogram conversions, enabling direct raw audio processing. ACTIVE BIRD2VEC is set to generate high-quality bird sound representations through SSL, potentially accelerating the assessment of environmental changes and decision-making processes for wind farms. Additionally, we seek to utilize the wide variety of bird vocalizations through DAL, reducing the reliance on extensively labeled datasets by human experts. We plan to curate a comprehensive set of tasks through Huggingface Datasets, enhancing future comparability and reproducibility of bioacoustic research. A comparative analysis between various transformer models will be conducted to evaluate their proficiency in bird sound recognition tasks. We aim to accelerate the progression of avian bioacoustic research and contribute to more effective conservation strategies.
Reichert, Hannes ; Hetzel, Manuel ; Schreck, Steven ; Doll, Konrad ; Sick, Bernhard:Sensor Equivariance by LiDAR Projection Images.. In: IEEE Intelligent Vehicles Symposium (IV) : IEEE, 2023, pp. 1–6
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In this work, we propose an extension of conventional image data by an additional channel in which the associated projection properties are encoded. This addresses the issue of sensor-dependent object representation in projection-based sensors, such as LiDAR, which can lead to distorted physical and geometric properties due to variations in sensor resolution and field of view. To that end, we propose an architecture for processing this data in an instance segmentation framework. We focus specifically on LiDAR as a key sensor modality for machine vision tasks and highly automated driving (HAD). Through an experimental setup in a controlled synthetic environment, we identify a bias on sensor resolution and field of view and demonstrate that our proposed method can reduce said bias for the task of LiDAR instance segmentation. Furthermore, we define our method such that it can be applied to other projection-based sensors, such as cameras. To promote transparency, we make our code and dataset publicly available. This method shows the potential to improve performance and robustness in various machine vision tasks that utilize projection-based sensors.
Reinhard, Philipp ; Li, Mahei Manhai ; Dickhaut, Ernestine ; Peters, Christoph ; Leimeister, Jan Marco:Empowering Recommender Systems in ITSM: A Pipeline Reference Model for AI-based Textual Data Quality Enrichment.. In: Gerber, A. ; Baskerville, R. (eds.): International Conference on Design Science Research (DESRIST). Pretoria, South Africa, 2023
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AI-based recommendation systems to augment working conditions in the field of IT service management (ITSM) have attracted new attention. However, many IT support organizations possess high volumes of tickets but are confronted with low quality, to which they train the underlying models of their AI systems. In particular, support tickets are documented insufficiently due to time pressure and lack of motivation. Following design science research, we design and evaluate an analytics pipeline to address the data quality issue. The pipeline can be applied to assess and extract high-quality support tickets for subsequent model training and operation. Based on a data set of 60.000 real-life support tickets from a manufacturing company, we develop the artifact, instantiate a recommender system and achieve a higher pre-diction performance in comparison to naïve enrichment methods. In terms of data management literature, we contribute to the understanding of as-sessing textual ticket data quality. By deriving a pipeline reference model, we move towards a general approach to designing machine learning-driven data quality analytics pipelines for attached recommender systems.
Richter, Caroline ; Draude, Claude: Erfahrungswissen in der Pflege – Chancen partizipativer Aktionsforschung und diskriminierungssensibler Technikentwicklung. In: Gruppe. Interaktion. Organisation. Zeitschrift für Angewandte Organisationspsychologie (GIO), Springer (2023)
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Kniewel, R.:Kontextadaptive Gestaltungslösungen für das User Interface mobiler Applikationen zur Schonung der Aufmerksamkeitsressource in der mobilen Interaktion, Schriftenreihe Mensch-Maschine-Systemtechnik. vol. 4. Kassel : Kassel University Press, 2023
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Im Alltag werden Smartphones häufig unterwegs eingesetzt, zum Beispiel zur Orientierung oder Informationsbeschaffung. Ihre Verwendung erfordert die Aufmerksamkeit des Nutzers, und oft leidet die Aufmerksamkeit für die Umgebung darunter. Ziel dieser Arbeit war es, Gestaltungslösungen zur Aufmerksamkeitsschonung in der Unterwegsnutzung (mobile Interaktion) zu entwickeln. Für drei typische Komponenten mobiler Applikationen des freizeitbezogenen Anwendungsfeldes wurde je ein Lösungsansatz abgeleitet, der auf einer Anpassung der Komponente an den Kontext (Kontextadaptivität) basiert. Es wurden exemplarische Gestaltungslösungen erarbeitet und in Nutzerstudien auf die Gestaltungsziele Gebrauchstauglichkeit, Aufmerksamkeitsschonung und Nutzerakzeptanz untersucht. Ein Lösungsansatz sieht vor, dem Nutzer die Spracheingabe, statt der Tastatureingabe anzubieten, wenn das Smartphone im Gehen verwendet wird. In einer Studie zeigte sich, dass die Spracheingabe eine effektive und ca. dreifach effizientere Eingabe ermöglicht und das Gehen weniger beeinträchtigt. Trotz geringer Vorerfahrungen wurde die Spracheingabe auch subjektiv nützlicher bewertet. Allerdings scheint die Akzeptanz ihrer Nutzung in öffentlichen Räumen eingeschränkt zu sein. Der zweite Lösungsansatz hat das Ziel, die Verwendung mobiler Karten zu beschleunigen, indem auf den Kartenpins Merkmalsinformationen abgebildet werden, die für den Nutzer aktuell relevant sind. Ein iteratives Vorgehen resultierte in verständlichen Gestaltungslösungen, die ein effektives Auffinden eines gesuchten Kartenpins ermöglichen und die Suchzeit ungefähr halbieren. Als besonders effizient erwiesen sich Gestaltungsvarianten mit farbiger Symbolerweiterung, die zudem am meisten präferiert wurden. Die Ergebnisse deuten auf eine Nutzerakzeptanz für den Lösungsansatz hin. Der dritte Lösungsansatz betrifft Benachrichtigungen, die Informationen zur Reisebegleitung liefern, aber den Nutzer bei einer anderen Aufgabe unterbrechen. Die Benachrichtigungen werden statt auf dem Smartphone auf einer Smartwatch angezeigt, um die Unterbrechung zu verkürzen. In Studien wurde deutlich, dass der Vorteil der Smartwatch in ihrer spezifischen Handhabung liegt, aber das Endgerät selbst keinen Effekt hat. Auch gelang es, eine gebrauchstaugliche benachrichtigungsbasierte Reisebegleitung für Smartwatches zu entwickeln, die von Nutzern akzeptiert wird. Insgesamt konnte in dieser Arbeit gezeigt werden, dass durch die gebrauchstaugliche Gestaltung kontextadaptiver App-Komponenten die Aufmerksamkeit in der mobilen Interaktion geschont werden kann.
David, K. ; Al-Dulaimi, A. ; Haas, H. ; Hu, R.Q.: 6G Fabric Compiles Microdomains for Sophisticated Service Delivery. In: IEEE Vehicular Technology Magazine (2023), pp. 16–18
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Dickhaut, Ernestine ; Schaup, Lasse ; Li, Mahei Manhai ; Leimeister, Jan Marco:Einführung eines DSGVO-konformen Videokonferenzsystems in hessischen Schulen. Projektergebnisse des ZEVEDI Ad hoc-Vorhabens „Wechselkosten zum DSGVO-konformen VC-System des Schulportals Hessen“. vol. 13. Kassel : Kassel University Press (KUP), 2023
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Die Pandemie hat zu einem abrupten Umstellen des Präsenz‐Schulbetriebs auf Online‐Lehre gezwungen. Man könnte auch von einem Digitalisierungszwang sprechen. Nach der Pandemie gilt es zu analysieren, was gut und bewahrenswert ist und was verändert werden muss – aus unterschiedlichsten Gründen. Zudem gilt es diese Phase, die 2020 mit Notmaßnahmen begann, als Chance zu begreifen, und das Momentum für mehr und gute digitale Lösungen zu nutzen. In Hessen (und darüber hinaus) gilt es nun zukunftsfähige Infrastrukturen für Schulen zu entwickeln. Diese sollen gutes Lehren und Lernen für Schüler: innen, Lehrende und Eltern ermöglichen und damit den klassischen Präsenzunterricht erweitern, anreichern und insgesamt wirksamer machen. Zugleich sollten alle Beteiligten beim Aufbau solcher Infrastrukturen und darauf aufbauender Anwendungen verstehen, dass es auch darum gehen muss, Lösungen zu erarbeiten, die die digitale Souveränität stärken. Digitale Souveränität beschreibt die Fähigkeiten und Möglichkeiten von Individuen und Institutionen, ihre Rolle(n) in der digitalen Welt selbstständig, selbstbestimmt und sicher ausüben zu können. // 1. Ebenso gehört digitale Souveränität zu den Leitbildern des digitalen Wandels in Europa: Bürgerinnen und Bürger müssen die Möglichkeit haben, Softwarelösungen zu nutzen, die ihre Grundrechte – Datenschutz gemäß europäischem Recht und informationelle Selbstbestimmung – respektieren. Aus dem Blickwinkel des Datenschutzes liegt digitale Souveränität vor, wenn die verantwortlichen Stellen informationstechnische Systeme und Dienste nutzen, die ihnen ermöglichen, ihre datenschutzrechtlichen Pflichten zu erfüllen. // 2. Es gilt also abzuwägen, ob bspw. die Vorteile von Consumer Software, die oftmals hohe Gebrauchstauglichkeit gepaart mit hoher Bekannt‐ und Vertrautheit bei vielen Nutzern die Nachteile durch fehlende Einhaltung von Datenschutzvorgaben, mangelnder Rechtssicherheit oder dem Untergraben digitaler Souveränität überwiegen. Darüber hinaus wird aber allzu oft übersehen, dass mehr als die o.g. Technologiewahl insbesondere auch die zielgerichtete organisationale Einführung und die Einbettung der IT in Arbeitsprozesse, Strukturen und soziale Kontexte massgeblich zum Erfolg beitragen. Erfolg ist hierbei zu messen in art‐ und sachgerechter, freiwilliger und intensiver Nutzung von Softwarelösungen in Lehr‐ und Lernprozessen. Es geht also auch um den organisationalen Einführungsprozess in hessische Schulen und das Unterstützen und Befördern der individuellen Aneignung der neuen Softwarelösungen bei allen Anspruchsgruppen. Denn nur wenn Software genutzt wird, entfaltet sich ihr potenzieller Nutzen. Ziel unseres Vorhabens ist daher, diese Zieldefinition nicht aus den Augen zu verlieren und alle Akteure dabei zu unterstützen, die Einführung von Videokonferenzsoftware an hessischen Schulen zu befördern und insbesondere auch am Erreichen dieses Ziels zu messen.
Klumbytė, Goda ; Piehl, Hannah ; Draude, Claude: Explaining the ghosts: Feminist intersectional XAI and cartography as methods to account for invisible labour (2023). — Workshop Behind the Scenes of Automation: Ghostly Care-Work, Maintenance, and Interference, ACM Conference on Human Factors in Computing Systems CHI 23, April 23-28, 2023, Hamburg, Germany
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Contemporary automation through AI entails a substantial amount of behind-the-scenes human labour, which is often both invisibilised and underpaid. Since invisible labour, including labelling and maintenance work, is an integral part of contemporary AI systems, it remains important to sensitise users to its role. We suggest that this could be done through explainable AI (XAI) design, particularly feminist intersectional XAI. We propose the method of cartography, which stems from feminist intersectional research, to draw out a systemic perspective of AI and include dimensions of AI that pertain to invisible labour.
Knodt, M. ; Stöckl, A. ; Steinke, F. ; Pietsch, M. ; Hornung, G. ; Stroscher, J.-P: Power blackout: Citizens’ contribution to strengthen urban resilience. In: Energy Policy vol. 2023 (2023), Nr. 174, p. 113433
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Dickhaut, Ernestine ; Li, Mahei Manhai ; Janson, Andreas:How Videoconferencing and its Affordances Transformed Teaching in Schools During COVID-19 Pandemic.. In: Hawaii international conference on system sciences (HICSS). Maui, Hawaii, 2023
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The COVID-19 pandemic has brought about major changes in digitization in many areas of life and professions. New areas were digitized almost overnight, the school system in Germany was no exception leading to a demand for videoconferencing tools and communication platforms. These technologies have many different functionalities that need to be discovered, explored, and exploited by the user. Given the disruptive events that the COVID pandemic brought to us, this paper aims to shed light on how the dynamics of discovery, exploration, and exploitation unfolds. We use a functional affordance theory perspective to analyze and understand how user learn to use new technologies. To do this, we conducted an exploratory case-study-based research design including interviews with teachers from various schools to analyze how they appropriate new technologies to develop an explanatory theoretical model.
Reinke, K. ; Niederkrome, L. ; Ohly, S.: Boundary work tactics and their effects on information and communication technology use after hours and recovery: Taking action when boundaries are blurring.. In: Journal of Personnel Psychology (2023)
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Reinhard, Philipp ; Wischer, Dennis ; Verlande, Lisa ; Neis, Nicolas ; Li, Mahei Manhai:Towards designing an AI-based conversational agent for on-the-job training of customer support novices.. In: International Conference on Design Science Research (DESRIST). Pretoria, South Africa, 2023
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Due to the high drop-out rates in IT support desks, efficient onboarding of novices becomes a relevant and recurring challenge. Especially in the case of IT support, solving technical issues and service requests while the conversation with the customer is still ongoing imposes high demands on novice support agents. As artificial intelligence (AI) can already classify service requests and help find solutions, AIbased augmentation holds great potential for improving the onboarding phase and reducing time-to-performance. For this reason, we propose an AI-based conversational (co-)agent during the onboarding phase of customer support novices to reduce the time spent on service tasks and enable on-the-job training. Following action design research, we aim to develop an instantiation of an AI-based co-agent to reduce the job demand for the service center agent novices and augment problem-solving capabilities by considering cognitive load. The co-agent will be implemented with one development partner and evaluated with two different case partner organizations. In this research-in-progress project, we developed a low-fidelity prototype and derived a tentative architecture that allows for a generalized development of such conversational agents in customer service organizations.
Koyda, Maren ; Stumme, Gerd: Factorizing Lattices by Interval Relations. In: Int. J. Approx. Reason. vol. 157 (2023), pp. 70–87
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Decke, Jens:An Examination of Organic Computing Strategies in Design Optimization.. In: Tomforde, S. ; Krupitzer, C. (eds.): Organic Computing -- Doctoral Dissertation Colloquium 2023 : kassel university press, 2023, pp. 41–54
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In the field of design optimization, numerical equation solvers, commonly used for finite element analysis and computational fluid dy- namics, impose significant computational demands. The iterative nature of design optimization, involving numerous simulations, magnifies re- source requirements in terms of time, energy, costs, and greenhouse gas emissions. Accelerating this process has been a long-standing research challenge, driven by the potential for resource savings and the ability to tackle increasingly complex problems. Recently, organic computing methods have gained prominence as promising approaches to address this challenge. This study aims to bridge the gap by integrating tech- niques from deep learning, active learning, and generative learning into the field of design optimization. The goal is to accelerate the design op- timization process while addressing specific challenges such as exploring large and complex design spaces and evaluating the advantages and con- straints of these methods. This research has the potential to significantly impact the industrial use of design optimization by providing faster and more efficient tools.
Decke, Jens ; Gruhl, Christian ; Rauch, Lukas ; Sick, Bernhard:DADO – Low-Cost Query Strategies for Deep Active Design Optimization.. In: International Conference on Machine Learning and Applications (ICMLA) : IEEE, 2023, pp. 1611–1618
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In this work, we apply deep active learning to the field of design optimization to reduce the number of computationally expensive numerical simulations widely used in industry and engineering. We are interested in optimizing the design of structural components, where a set of parameters describes the shape. If we can predict the performance based on these parameters and consider only the promising candidates for simulation, there is an enormous potential for saving computing power. We present two query strategies for self-optimization to reduce the computational cost in multi-objective design optimization problems. Our proposed methodology provides an intuitive approach that is easy to apply, offers significant improvements over random sampling, and circumvents the need for uncertainty estimation. We evaluate our strategies on a large dataset from the domain of fluid dynamics and introduce two new evaluation metrics to determine the model's performance. Findings from our evaluation highlights the effectiveness of our query strategies in accelerating design optimization. Furthermore, the introduced method is easily transferable to other self-optimization problems in industry and engineering.
Dickhaut, Ernestine ; Janson, Andreas ; Hevner, Alan ; Leimeister, Jan Marco:Sharing Design Knowledge Through Codification in Interdisciplinary DSR Collaborations.. In: Hawaii International Conference on System Sciences (HICSS). Maui, Hawaii, 2023
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The goals of design science research (DSR) projects are to generate novel and useful artifacts and to produce rigorous and generalizable design knowledge. Often, DSR projects are conducted in collaborative, interdisciplinary project teams. Different disciplinary approaches to codifying design knowledge result in challenging project interactions. To study this situation, we analyze design knowledge codification in interdisciplinary teams over time. We gain insights from a survey of recent DSR papers that have been published in the AIS Senior Scholars’ Basket. We then present a detailed case study of a longitudinal project that brought to light issues of sharing design knowledge across disciplinary borders. Drawing from the survey and case study, we provide actionable guidance on how to effectively codify and share design knowledge to support researchers and practitioners to build useful artifacts and to make interdisciplinary design knowledge contributions reusable and applicable.
Söllner, Matthias ; Bittner, Eva A. C. ; Ebel, Philipp Alexander ; Oeste-Reiß, Sarah:Introduction to the Minitrack on Applications of Human-AI Collaboration: Insights from Theory and Practice.. In: : ScholarSpace, 2023 — ISBN 978-0-9981331-6-4, p. 236
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Deinzer, Renate ; Eidenhardt, Zdenka ; Sohrabi, Keywan ; Stenger, Manuel ; Kraft, Dominik ; Sick, Bernhard ; Götz-Hahn, Franz ; Bottenbruch, Carlotta ; et al.: It is the habit not the handle that affects tooth brushing. Results of a randomised counterbalanced cross over study. In: Research Square (2023). — (preprint)
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Objective: To assess the effect of the toothbrush handle on video-observed toothbrushing behaviour and toothbrushing effectiveness Methods: This is a randomized counterbalanced cross-over study. N = 50 university students brushed their teeth at two occasions, one week apart, using either a commercial ergonomically designed manual toothbrush (MT) or Brushalyze V1 (BV1), a manual toothbrush with a thick cylindrical handle without any specific ergonomic features. Brushing behaviour was video-analysed. Plaque was assessed at the second occasion immediately after brushing. Participants directly compared the two brushes regarding their handling and compared them to the brushed they used at home. Results: The study participants found the BV1 significantly more cumbersome than the M1 or their brush at home. (p < 0.05). However, correlation analyses revealed a strong consistency of brushing behavior with the two brushes (0.71 < r < 0.91). Means differed only slightly (all d < 0.36). These differences became statistically significant only for the brushing time at inner surfaces (d = 0.31 p = 0.03) and horizontal movements at inner surfaces (d = 0.35, p = 0.02). Plaque levels at the gingival margins did not differ while slightly more plaque persisted at the more coronal aspects of the crown after brushing with BV1 (d = 0.592; p 0.042) Discussion: The results of the study indicate that the brushing handle does not play a major role in brushing behavior or brushing effectiveness.
Reinhard, Philipp ; Li, Mahei Manhai ; Dickhaut, Ernestine ; Reh, Cornelius ; Peters, Christoph ; Leimeister, Jan Marco:A Conceptual Model for Labeling in Reinforcement Learning Systems: A Value Co-Creation Perspective.. In: Gerber, A. ; Baskerville, R. (eds.): International Conference on Design Science Research (DESRIST). Pretoria, South Africa, 2023
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Artificial intelligence (AI) possesses the potential to augment customer service employees e.g. via decision support or solution recommendations. Still, its underlying data for training and testing the AI systems is provided by human annotators through human-in-the-loop configurations. However, due to the high effort for annotators and lack of incentives, AI systems face low underlying data quality. That in turn results in low prediction performance and limited acceptance by the targeted user group. Faced with the enormous volume and increasing complexity of service requests, IT service management (ITSM) especially, relies on high data quality for AI systems and in-corporating domain-specific knowledge. By analyzing the existing labeling process in that specific case, we design a revised to-be process and develop a conceptual model from a value co-creation perspective. Finally, a functional prototype as an instantiation in the ITSM domain is implemented and evaluated through accuracy metrics and user evaluation. The results show that the new process increases the perceived value of both labeling quality and the perceived prediction quality. Thus, we contribute a conceptual model that supports the systematic design of efficient and interactive labeling processes in diverse applications of reinforcement learning systems.
Desel, Jörg ; Opel, Simone ; Siegeris, Juliane ; Draude, Claude ; Weber, Gerhard ; Schell, Timon ; Schwill, Andreas ; Thorbrügge, Carsten ; et al.:Hochschuldidaktik Informatik HDI 2021, Commentarii informaticae didacticae (CID) : Universitätsverlag Potsdam, 2023 — ISBN 978-3-86956-548-4
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Die Fachtagungen HDI (Hochschuldidaktik Informatik) beschäftigen sich mit den unterschiedlichen Aspekten informatischer Bildung im Hochschulbereich. Neben den allgemeinen Themen wie verschiedenen Lehr- und Lernformen, dem Einsatz von Informatiksystemen in der Hochschullehre oder Fragen der Gewinnung von geeigneten Studierenden, deren Kompetenzerwerb oder auch der Betreuung der Studierenden widmet sich die HDI immer auch einem Schwerpunktthema. Im Jahr 2021 war dies die Berücksichtigung von Diversität in der Lehre. Diskutiert wurden beispielsweise die Einbeziehung von besonderen fachlichen und überfachlichen Kompetenzen Studierender, der Unterstützung von Durchlässigkeit aus nichtakademischen Berufen, aber auch die Gestaltung inklusiver Lehr- und Lernszenarios, Aspekte des Lebenslangen Lernens oder sich an die Diversität von Studierenden adaptierte oder adaptierende Lehrsysteme. Dieser Band enthält ausgewählte Beiträge der 9. Fachtagung 2021, die in besonderer Weise die Konferenz und die dort diskutierten Themen repräsentieren.
Akhundzada, Sapida ; Dingel, Kristina ; Bischof, David ; Janzen, Christian ; Sick, Bernhard ; Ehresmann, Arno: Domain Imaging in Periodic Submicron Wide Nanostructures by Digital Drift Correction in Kerr Microscopy. In: Advanced Photonics Research vol. 4, Wiley (2023), Nr. 10, p. 2300170
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Magneto-optical Kerr microscopy is a powerful method for imaging magnetic domains. Even though domain imaging below the diffractive resolution limit is possible, such investigations are getting increasingly complex with decreasing structure size due to the decreasing Kerr contrast. As magnetic domain images free of topographical artifacts are obtained by subtracting a reference image from the actual image, the corresponding challenges are additionally increased by unavoidable sample motion in the time interval between acquiring the two images. Software-based drift corrections typically rely on a unique structure in the image's region of interest (ROI), recognized automatically or selected manually by the user. By digital image shifting, the ROI positions in the actual and reference images are aligned, and the sample motion is compensated. For magnetic domain imaging in periodically arranged micro- or nano-objects, unique topographical features are not given, making the drift correction by ROIs difficult, often even impossible. Herein, a novel software-based approach is presented for drift corrections to image domains with features close/below the optical resolution limit and for investigating periodically arranged micro- or nano-objects without utilizing ROIs. High-contrast images are obtained, enabling the characterization of periodically arranged 1D, 2D, and 3D magnetic objects with lateral dimensions below 100 nm.
Kohpeiß, M. ; Schaller, T.: Systeme zur Angriffserkennung nach § 8a Abs. 1a BSIG. In: Computer und Recht vol. 2023 (2023), pp. 589–595
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Draude, Claude:Working with Diversity in Informatics.. In: Hochschuldidaktik Informatik HDI 2021, Commentarii informaticae didacticae : Universitätsverlag Potsdam, 2023 — ISBN 978-3-86956-548-4, pp. 13–33
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Diversity is a term that is broadly used and challenging for informatics research, development and education. Diversity concerns may relate to unequal participation, knowledge and methodology, curricula, institutional planning etc. For a lot of these areas, measures, guidelines and best practices on diversity awareness exist. A systemic, sustainable impact of diversity measures on informatics is still largely missing. In this paper I explore what working with diversity and gender concepts in informatics entails, what the main challenges are and provide thoughts for improvement. The paper includes definitions of diversity and intersectionality, reflections on the disciplinary basis of informatics and practical implications of integrating diversity in informatics research and development. In the final part, two concepts from the social sciences and the humanities, the notion of “third space”/hybridity and the notion of “feminist ethics of care”, serve as a lens to foster more sustainable ways of working with diversity in informatics.
Smith, Jamie ; Klumbytė, Goda ; Britton, Ren Loren: From ‘if-then’ to ‘what if?’ Rethinking healthcare algorithmics with posthuman speculative ethics. In: Nursing Philosophy (2023)
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This article discusses the role that algorithmic thinking and management play in health care and the kind of exclusions this might create. We argue that evidence-based medicine relies on research and data to create pathways for patient journeys. Coupled with data-based algorithmic prediction tools in health care, they establish what could be called health care algorithmics—a mode of management of healthcare that produces forms of algorithmic governmentality. Relying on a critical posthumanist perspective, we show how healthcare algorithmics is contingent on the way authority over bodies is produced and how predictive health care algorithms can reproduce inequalities of the worlds from which they are made, centreing possible futures on existing normativities regulated through algorithmic biopower. In contrast to that, we explore posthuman speculative ethics as a way to challenge understanding of ‘ethics’ and ‘care’ in healthcare algorithmics. We suggest some possible avenues towards working speculative ethics into health care while still being critically attentive to algorithmic modes of management and prediction in health care.
Engelhardt, Anna ; Decke, Jens ; Meier, David ; Dulig, Franz ; Ragunathan, Rishan ; Wegener, Thomas ; Sick, Bernhard ; Niendorf, Thomas: On the Reliability of Automated Analysis of Fracture Surfaces Using a Novel Computer Vision-Based Tool. In: Advanced Engineering Materials vol. 25, Wiley (2023), Nr. 21, p. 2300876
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Fracture surface analysis is of utmost importance with respect to structural integrity of metallic materials. This especially holds true for additively manufactured materials. Despite an increasing trend of automatization of testing methods, the analysis and classification of fatigue fracture surface images is commonly done manually by experts. Although this leads to correct results in most cases, it has several disadvantages, e.g., the need of a huge knowledge base to interpret images correctly. In present work, an unsupervised tool for analysis of overview images of fatigue fracture surface images is developed to support nonexperienced users to identify the origin of the fracture. The tool is developed using fracture surface images of additively manufactured Ti6Al4V specimens fatigued in the high-cycle-fatigue regime and is based on the identification of river marks. Several recording parameters seem to have no significant influence on the results as long as preprocessing settings are adapted. Moreover, it is possible to analyze images of other materials with the tool as long as the fracture surfaces contain river marks. However, special features like multiple origins or origins located in direct vicinity to the surface, e.g., caused by increased plastic strains, require a further tool development or alternative approaches.
Lamla, Jörn: Kritische Kompetenzen für die post-digitale (Politik der) Lebensführung. In: forum für Kinder- und Jugendpsychiatrie, Psychosomatik und Psychotherapie vol. 13 (2023), Nr. 3+4, pp. 5–25
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Engel, Christian ; Elshan, Edona ; Ebel, Philipp ; Leimeister, Jan Marco: Stairway to heaven or highway to hell: A model for assessing cognitive automation use cases. In: Journal of Information Technology (JIT) (2023)
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Cognitive automation (CA) moves beyond rule-based business process automation to target cognitive knowledge and service work. This allows the automation of tasks and processes, for which automation seemed unimaginable a decade ago. To organizations, these CA use cases offer vast opportunities to gain a significant competitive advantage. However, CA imposes novel challenges on organizations’ decisions regarding the automation potential of use cases, resulting in low adoption and high project failure rates. To counteract this, we draw on an action research study with a leading European manufacturing company to develop and test a model for assessing use cases’ amenability to CA. The proposed model comprises four dimensions: cognition, data, relationship, and transparency requirements. The model proposes that a use case is less (more) amenable to CA if these requirements are high (low). To account for the model’s industry-agnostic generalizability, we draw on an internal evaluation within the action research company and three additional external evaluations undertaken by independent project teams in three distinct industries. From a practice perspective, the model will help organizations make more informed decisions in selecting use cases for CA and planning their respective initiatives. From a research perspective, the identified determinants affecting use cases’ amenability to CA will enhance our understanding of CA in particular and artificial intelligence as the driving force behind CA in general.
Busch, Philip ; Kirchhoff, Jérôme ; Heinisch, Judith S. ; David, Klaus ; von Stryk, Oskar ; Wendt, Janine:Stores are Liable for Their Robots!? An Empirical Study on Liability in HRI with an Anthropomorphic Frontline Service Robot.. In: 2023 32nd IEEE International Conference on Robot and Human Interactive Communication (RO-MAN), 2023
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Elshan, Edona ; Germann, Dominic ; Dickhaut, Ernestine ; Li, Mahei Manhai:Faster, Cheaper, Better? Analyzing how Lowcode Developoment Platforms drive Bottom-Up Innovation.. In: European Conference on Information Systems (ECIS). Kristiansand, Norway, 2023
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Recent years have seen a growing adoption of Low Code Development Platforms (LCDPs) in organizations. The increasing affinity for technology development across all user groups, consumerization of development, and advancing digitalization are opening up a new target group for the low code movement. This change in software development allows bottom-up user innovators within a company to leverage their domain knowledge and quickly deploy much-needed digital services. However, a clear understanding of this paradigm of software development in organizations and the influence on end-user acceptance is still missing. In this paper, we present the results of an interview study conducted with 18 LCDP experts and discuss the implications of our findings, highlighting the role of LCDPs and context in bottom-up innovation as well as user-centricity. Our research contributes to the literature on LCDPs and offers valuable insights for organizations looking to leverage their workforce's innovative potential.
Elshan, Edona ; Ebel, Philipp Alexander ; Söllner, Matthias ; Leimeister, Jan Marco: Leveraging Low Code Development of Smart Personal Assistants: An Integrated Design Approach with the SPADE Method. In: Journal of Management Information Systems (JMIS) vol. 40 (2023), Nr. 1, pp. 96–129
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Smart personal assistants (SPAs) promise individualized user interactions owing to their varying interaction possibilities, knowledgeability, and human-like behaviors. To support the widespread adoption and use of SPAs, organizations such as Google or Amazon provide low code environments that support the development of SPAs (e.g., for Google Home or Amazon’s Alexa). These so-called low code platforms enable domain experts (e.g., business users without programming skills or experience) to develop SPAs for their purposes. However, using these platforms alone does not guarantee a useful and good conversation with novel SPAs due to non-intuitive design choices. Following a design science research approach, we propose the Smart Personal Assistant for Domain Experts (SPADE) method to address the missing link. This method supports domain experts in the development and contextualization of sophisticated SPAs for various application scenarios and focuses especially on conversational and anthropomorphic design steps. Our proof of concept and proof of value results show that SPADE is useful for supporting domain experts to create effective SPAs in different domains beyond private set-ups.
Elshan, Edona ; Dickhaut, Ernestine ; Ebel, Philipp:An Investigation of Why Low Code Platforms Provide Answers and New Challenges.. In: Hawaii International Conference on System Sciences (HICSS). Maui, Hawaii, 2023
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Although the idea of low code development is not new, the market for these oftentimes platform-based development approaches is exponentially growing. Especially factors such as increasing affinity for technology development across all user groups, consumerization of development, and advancing digitalization are opening a new target group for the low code movement. The broad application possibilities of low code, as well as the benefits, are therefore getting more important for businesses. Especially for small and medium-sized enterprises (SMEs), low code constitutes a promising avenue to survive and succeed in the rapidly changing world. However, a clear understanding regarding the application of this paradigm of software development in SMEs is still missing. To provide a coherent understanding of the phenomenon low code in SMEs, we review extant literature and conduct interviews, identifying potential application domains and conceptualizing the benefits and challenges of low code from a holistic perspective.
Karst, Fabian Sven ; Li, Mahei Manhai ; Leimeister, Jan Marco:Synthesizing Training Data with Generative Adversarial Networks: Towards the Design of a Data-Sharing Ecosystem Platform for Fraud Detection.. In: International Conference on Design Science Research in Information Systems and Technology (DESRIST). Pretoria, South Africa, 2023
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Financial fraud has a severe impact on the general population. While financial institutions have technological capabilities for fraud detection using intelligent AI systems, the delay until they have collected a sufficient size of fraudulent data to train their fraud detection models creates a costly vulnerability. One major challenge for quickly training data lies in the inability to share fraud detection training data with other financial institutions, due to data and privacy regulations. Thus, we create the concept for a data-sharing ecosystem platform that addresses data anonymity concerns by creating synthesized training data based on each institution’s fraud detection training data sets. We rely on the advantages of generative adversarial networks (GAN) to quickly construct a shared dataset for all ecosystem members. Applying design science research, this paper derives design knowledge based on financial fraud detection literature, data sharing between financial institutions, GANs and modular systems theory for the design of a plat-form architecture for data-sharing ecosystems.
Lamla, Jörn:Consumer Participation through Digital Review Practices? On the Sociology of the Infrastructures of Consumer Participation.. In: Hellmann, K. ; Klein, A. ; Baule, B. (eds.): Consumer Policy from Below. Wiesbaden : Springer, 2023, pp. 81–93
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Eilers, Karen ; Peters, Christoph: Das agile Mindset: Definition, Relevanz und Messbarkeit. In: PersonalQUARTELY vol. 24 (2023), Nr. 4
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Geminn, Christian: Indien: Der neue Digital Personal Data Protection Act. In: ZD-Aktuell (2023), Nr. 19, 01404
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Panahi, T.: Gesetz gegen digitale Gewalt – auf Kollisionskurs mit dem DSA? Rechtliche Stellungnahme und Änderungsvorschläge zum BMJ-Eckpunktepapier. In: Multimedia und Recht vol. 2023 (2023), pp. 556–562
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Böning, F. ; Astfalk, S. ; Sellung, R. ; Laufs, U.:Informiertheit und Transparenz im Kontext digitaler Selbstvermessung.. In: Friedewald, M. ; Roßnagel, A. ; Neuburger, R. ; Bieker, F. ; Hornung, G. (eds.): Daten-Fairness in einer globalisierten Welt. Baden-Baden, 2023, pp. 247–273
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Panahi, T. ; Hornung, G. ; Schäfer, K. ; Choi, J.-E. ; Steinebach, M. ; Vogel, I.:Desinformationserkennung anhand von Netzwerkanalysen – ein Instrument zur Durchsetzung der Pflichten des DSA am Beispiel von Telegram.. In: Friedewald, M. ; Roßnagel, A. ; Neuburger, R. ; Bieker, F. ; Hornung, G. (eds.): Daten-Fairness in einer globalisierten Welt. Baden-Baden, 2023, pp. 343–370
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Büscher, M. ; Gutjahr, A. ; Hornung, G. ; Schindler, S. ; Selzer, A. ; Spiecker gen. Döhmann, I. ; Stummer, S. ; Wilmer, T. ; et al.: Abschreckungseffekte und Überwachungsgefühl im Datenschutzrecht. Auswirkungen auf betroffene Personen. In: Datenschutz und Datensicherheit vol. 2023 (2023), pp. 503–512
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Panahi, T. ; Seyda, L.:KI-generierte Fakes - wem müssen wir jetzt vertrauen? Herstellung und Schutz von Vertrauen in und Vertrauenswürdigkeit von Informationen im Schatten von ChatGPT & Co.. In: K., B. A. ; Fritzsche, J. ; Heinze, C. ; Thomsen, O. (eds.): Das IT-Recht vor der (europäischen) Zeitenwende?. Oldenburg, 2023, pp. 459–482
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Pham, Minh Tuan ; Wijesingha, Jayan ; Kottke, Daniel ; Herde, Marek ; Huseljic, Denis ; Sick, Bernhard ; Wachendorf, Michael ; Esch, Thomas: Active Label Refinement for Semantic Segmentation of Satellite Images. In: arXiv e-prints (2023), p. arXiv:2309.06159
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Remote sensing through semantic segmentation of satellite images contributes to the understanding and utilisation of the earth's surface. For this purpose, semantic segmentation networks are typically trained on large sets of labelled satellite images. However, obtaining expert labels for these images is costly. Therefore, we propose to rely on a low-cost approach, e.g. crowdsourcing or pretrained networks, to label the images in the first step. Since these initial labels are partially erroneous, we use active learning strategies to cost-efficiently refine the labels in the second step. We evaluate the active learning strategies using satellite images of Bengaluru in India, labelled with land cover and land use labels. Our experimental results suggest that an active label refinement to improve the semantic segmentation network's performance is beneficial.
Panahi, T. ; Zurawski, P.:Messenger & Co: Das Unsichtbare regulieren?. In: Kemmesies, U. et al. (ed.): MOTRA Monitor. vol. 2022, 2023, pp. 410–429
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Dürrschnabel, Dominik ; Stumme, Gerd: Greedy Discovery of Ordinal Factors (2023). — cite arxiv:2302.11554Comment: 11 pages, 6 figures, 2 tables, 3 algorithms
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In large datasets, it is hard to discover and analyze structure. It is thus common to introduce tags or keywords for the items. In applications, such datasets are then filtered based on these tags. Still, even medium-sized datasets with a few tags result in complex and for humans hard-to-navigate systems. In this work, we adopt the method of ordinal factor analysis to address this problem. An ordinal factor arranges a subset of the tags in a linear order based on their underlying structure. A complete ordinal factorization, which consists of such ordinal factors, precisely represents the original dataset. Based on such an ordinal factorization, we provide a way to discover and explain relationships between different items and attributes in the dataset. However, computing even just one ordinal factor of high cardinality is computationally complex. We thus propose the greedy algorithm in this work. This algorithm extracts ordinal factors using already existing fast algorithms developed in formal concept analysis. Then, we leverage to propose a comprehensive way to discover relationships in the dataset. We furthermore introduce a distance measure based on the representation emerging from the ordinal factorization to discover similar items. To evaluate the method, we conduct a case study on different datasets.
Dürrschnabel, Dominik ; Stumme, Gerd:Maximal Ordinal Two-Factorizations.. In: Ojeda-Aciego, M. ; Sauerwald, K. ; Jäschke, R. (eds.): Graph-Based Representation and Reasoning. Cham : Springer Nature Switzerland, 2023 — ISBN 978-3-031-40960-8, pp. 41–55
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Given a formal context, an ordinal factor is a subset of its incidence relation that forms a chain in the concept lattice, i.e., a part of the dataset that corresponds to a linear order. To visualize the data in a formal context, Ganter and Glodeanu proposed a biplot based on two ordinal factors. For the biplot to be useful, it is important that these factors comprise as much data points as possible, i.e., that they cover a large part of the incidence relation. In this work, we investigate such ordinal two-factorizations. First, we investigate for formal contexts that omit ordinal two-factorizations the disjointness of the two factors. Then, we show that deciding on the existence of two-factorizations of a given size is an {\$$}{\$$}{\backslash}textsf{\{}NP{\}}{\$$}{\$$}NP-complete problem which makes computing maximal factorizations computationally expensive. Finally, we provide the algorithm Ord2Factor that allows us to compute large ordinal two-factorizations.
Dürrschnabel, Dominik ; Hanika, Tom ; Stumme, Gerd: Drawing Order Diagrams Through Two-Dimension Extension. In: Journal of Graph Algorithms and Applications vol. 27, Journal of Graph Algorithms and Applications (2023), Nr. 9, pp. 783–802
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Peters, Christoph ; Niering, Peggy:Menschzentrierte Bürgerbeteiligung mit der Plattform "Weck den Herkules in Dir".. In: mitarbeiten.skript. Bonn, Germany : Stiftung Mitarbeit, 2023 — ISBN 9783941143494, pp. 31–35
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Peters, Christoph ; Reichert, Felix ; Gläsel, Berit:KI im IT-Support – wie mit Low-Code-Plattformen Beschäftigte zu Gestalter:innen der Automatisierung werden.. In: Gergs, H.-J. ; Schatilow, L. ; Langes, B. ; Kämpf, T. (eds.): Human Friendly Automation: Arbeit und Künstliche Intelligenz neu denken. 1. ed.. Frankfurt, Germany : Frankfurter Allgemeine Buch, 2023 — ISBN 978-3-96251-171-5, pp. 151–160
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Peters, Christoph ; Richter, Peggy:Individualizing Patient Pathways through Modularization: Design and Evaluation of Healthcare-Specific Modularization Parameters.. In: Proceedings of the 56th Hawaii International Conference on System Sciences (HICSS 2023). Maui, Hawaii, USA, 2023
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Some classes of person-oriented services such as healthcare services require individualization to be effective. Individualizing services and corresponding patient pathways are costly. To provide such services in an individualized, but also efficient manner, service modularization is known as a solution. Until now, modularization parameters that take healthcare specificities into account are missing. This paper closes this gap. Following a design science research approach, we iteratively build and evaluate a set of healthcare-specific modularization parameters. For requirements elicitation, refinement of the modularization parameters and their evaluation, we conduct interviews with domain experts from patient pathways in oncology care as well as with service design and business development experts. As main theoretical contribution, this paper provides design knowledge for the modularization of healthcare services. For practice, the set of parameters assists healthcare providers in the efficient provision of individualized, patient-centric solutions and patient pathways.
Lachi, Veronica ; Moallemy-Oureh, Alice ; Roth, Andreas ; Welke, Pascal:Graph Pooling Provably Improves Expressivity.. In: Workshop on New Frontiers in Graph Learning, NeurIPS, 2023, pp. 1–7
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In the domain of graph neural networks (GNNs), pooling operators are fundamental to reduce the size of the graph by simplifying graph structures and vertex features. Recent advances have shown that well-designed pooling operators, coupled with message-passing layers, can endow hierarchical GNNs with an expressive power regarding the graph isomorphism test that is equal to the Weisfeiler-Leman test. However, the ability of hierarchical GNNs to increase expressive power by utilizing graph coarsening was not yet explored. This results in uncertainties about the benefits of pooling operators and a lack of sufficient properties to guide their design. In this work, we identify conditions for pooling operators to generate WL-distinguishable coarsened graphs from originally WL-indistinguishable but non-isomorphic graphs. Our conditions are versatile and can be tailored to specific tasks and data characteristics, offering a promising avenue for further research.
Ritz, Eva ; Rietsche, Roman ; Leimeister, Jan Marco: How to Support Students’ Self-Regulated Learning in Times of Crisis: An Embedded Technology-Based Intervention in Blended Learning Pedagogies. In: Academy of Management Learning & Education (AMLE) vol. 22 (2023), Nr. 3, pp. 357–382
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With the increasing prevalence of technology-enhanced learning environments, self-regulated learning (SRL) has become a crucial skill for management students and graduates in the 21st century. Self-regulated learners can take control of their own learning process by setting learning objectives and selecting appropriate learning strategies. As a result of the recent COVID-19 crisis, universities were compelled to shift to online course delivery, which greatly reduced social interaction between educators and learners and challenged educators’ feedback practices. To address this issue, we developed and embedded a technology-based intervention with temporal-proximate and regular formative feedback assessments in a large-scale management course to promote graduate students’ SRL practices. We evaluated the intervention in a quasi-experiment, which found that students with the embedded SRL intervention had higher self-assessment and learning outcome scores and lower absolute self-assessment deviation. Our study makes at least three contributions. First, we shed light on students’ SRL strategies in times of emergency remote learning, highlighting their extensive need for social support and comparison. Second, we extend the literature on SRL and social-cognitive theory by unveiling a hidden effect when embedding temporal-proximate and regular interventions. Third, we contribute an empirically evaluated intervention to foster students’ SRL in blended learning and online pedagogies.
Klee, Sven ; Janson, Andreas: Investigating Relevant Data in Automotive Procurement Departments: External Shocks as Transparency Creator for Data Deficits in Decision-Making. In: Information Systems Frontiers (Inf Syst Front) (2023)
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Uncertainty becomes the new normal for organizations worldwide. Many organizations are dependent on complex global supply chains. COVID-19, but also environmental disasters or the war in Ukraine, demonstrate the volatility of supply chains. Procurement departments are the central interface between internal and external stakeholders and must manage the supply chain stability what requires fast and accurate decision-making. External shocks and sudden disruptions of central supply chains illustrated that data analytics could not prevent disruptions, although sound research on competitive advantages and numerous investments should have enabled organizations to data-driven decision-making. Rather, it became transparent, that there are numerous data deficits in organizations. We did an interview-based study with 23 procurement and supply chain experts about relevant data sets and the status of its usability. We contribute to theory and practice by uncovering relevant aspects of data and provide theoretical propositions on how decision-making can be improved in automotive procurement departments.
Klee, Sven ; Janson, Andreas ; Leimeister, Jan Marco:Automotive Manufacturers and Their Stumble from one Supply Crisis to Another: Procurement Departments Could be the Game Changer by Using Data Analytics, but…. In: Hawaii International Conference on System Sciences (HICSS). Maui, Hawaii, USA, 2023
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With this paper, we examine the use of data analytics for crisis management in automotive procurement departments. Possible business values of data analytics were part of numerous research approaches. Nevertheless, automotive manufacturers are repeatedly confronted with supply chain disruptions. Procurement departments have a central role within supply chains and are predominantly responsible for stable supply processes. Taking into account the potential of data analytics, such crises should be avoided or at least mitigated. Thus, there is the question, why data analytics cannot currently help automotive procurement departments by facing such crises. We therefore evaluate problems and obstacles by implementing and using data analytics in automotive procurement departments. Therefore, we talk to experienced procurement experts for evaluating practical insights. With our findings we provide practical insights and applicable recommendations for action with the goal of helping procurement leaders to better leverage data analytics for meeting current and future crises.
Pfeiffer, L. ; Astfalk, S. ; Baum, L. ; Hanneke, B. ; Schunck, C. ; Winterstetter, M.:Anforderungen an die automatisierte Protokollierung von Datenverarbeitungstätigkeiten in einem Transaktionsjournal: eine Multi-Stakeholder-Perspektive auf Motivation und Umsetzung.. In: Friedewald, M. ; Roßnagel, A. ; Neuburger, R. ; Bieker, F. ; Hornung, G. (eds.): Daten-Fairness in einer globalisierten Welt. Baden-Baden, 2023, pp. 117–143
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Ritz, Eva ; Fabio, Donisi ; Elshan, Edona ; Rietsche, Roman:Artificial Socialization? How Artificial Intelligence Applications Can Shape A New Era of Employee Onboarding Practices.. In: Hawaii International Conference on System Sciences (HICSS). Maui, Hawaii, USA, 2023
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Onboarding has always emphasized personal contact with new employees. Excellent onboarding can extend employee retention and improve loyalty. Even in a physical setting, the onboarding process is demanding for both the newcomer and the onboarding organization. Remote work, in contrast, has made this process even more challenging by forcing a rapid shift from offline to online onboarding practices. Organizations are adopting new technologies like artificial intelligence (AI) to support work processes, such as hiring processes or innovation facilitation, which could shape a new era of work practices. However, it has not been studied how AI applications can or should support onboarding. Therefore, our research conducts a literature review on current onboarding practices and uses expert interviews to evaluate AI's potential and pitfalls for each action. We contribute to the literature by presenting a holistic picture of onboarding practices and assessing potential application areas of AI in the onboarding process.
Ritz, Eva:GETTING INTO FLOW!? ENHANCE FLOW-LIKE EXPERIENCES AND LEARNING PERFORMANCE THROUGH PERSONALIZED LEARNING ACTIVITIES.. In: European Conference on Information Systems (ECIS). Kristiansand, Norway, 2023
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Although intelligent learning systems provide new opportunities for personalizing learning activities, important design questions remain. To unleash the full impact of such systems, it is vital to examine how the use of Bayesian knowledge tracing can provide learners personalized learning activities and shape their flow experience, performance, and continuity intention. Further, this study explores the moderating role of a growth mindset on the relation between learning task adaptation and flow experience. I rely on electroencephalography to increase the internal validity of flow measurements. The study builds on Flow Theory and aims to empirically unveil the influence of an intelligent personalization of learning processes. The next step will be an experiment with 80 participants following the developed experimental design to evaluate flow experiences in intelligent learning systems. The results of this experiment aim to guide educational designers with prescriptive knowledge on how to design flow-like learning experiences in intelligent learning systems.
Botache, Diego:Machine Learning Supported Optimisation and Experimental Evaluation of Electrical Motors for Small Urban Passenger Vehicles.. In: Tomforde, S. ; Krupitzer, C. (eds.): Organic Computing -- Doctoral Dissertation Colloquium 2023 : kassel university press, 2023, pp. 14–26
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The increasing environmental pollution and rising global energy demands require the rapid development of novel and sustainable traction machines from urban transport up to large-scale transport vehicles. The optimisation of the development cycle of electrical traction machines plays a vital role in sustainable mobility. Still, developers have to face the difficulty of analysing time-consuming multiphysics simulations to assess the performance of many prototype variants. Accelerating this process involves implementing machine learning-supported strategies that can effectively acquire results and predictions about the performance and efficiency of prototypes in an iterative optimisation process and detect possible issues during the experimental procedure. The following research project streamlines the development cycle by identifying and presenting multiple strategies for applying and evaluating machine learning and deep learning techniques in different stages and areas in the development cycle including self-optimisation and self-adaptation capabilities. By implementing these strategies, the optimisation process can be further improved and become more efficient and robust, reducing the time and cost required for testing and validation. Therefore, this proposal addresses two application areas. The first area consists of the supported machine learning motor performance prediction at the topology design and optimisation stage of structural components. The second area corresponds to the machine learning-supported experimental evaluation process of prototypes at desired test benches.
Heidecker, Florian ; El-Khateeb, Ahmad ; Sick, Bernhard: Sampling-based Uncertainty Estimation for an Instance Segmentation Network. In: arXiv e-prints (2023), p. arXiv:2305.14977
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The examination of uncertainty in the predictions of machine learning (ML) models is receiving increasing attention. One uncertainty modeling technique used for this purpose is Monte-Carlo (MC)-Dropout, where repeated predictions are generated for a single input. Therefore, clustering is required to describe the resulting uncertainty, but only through efficient clustering is it possible to describe the uncertainty from the model attached to each object. This article uses Bayesian Gaussian Mixture (BGM) to solve this problem. In addition, we investigate different values for the dropout rate and other techniques, such as focal loss and calibration, which we integrate into the Mask-RCNN model to obtain the most accurate uncertainty approximation of each instance and showcase it graphically.
Geminn, Christian: Australien: Neue Befugnisse der Datenschutzaufsicht. In: ZD-Aktuell (2023), Nr. 3, 01052
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Hinton, Peta ; Lorenz-Meyer, Dagmar ; Barla, Josef ; Braun, Veit ; Draude, Claude ; Ernst, Waltraud ; Liu, Xin ; Mauthner, Natasha ; et al.:New Materialisms Across the Natural Sciences and Humanities: Trajectories, Inspirations, and Stirrings.. In: Colman, F. ; van der Tuin, I. (eds.): Methods and Genealogies of New Materialisms : Edinburg University Press, 2023, pp. 212–238
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Hetzel, Manuel ; Reichert, Hannes ; Reitberger, Günther ; Doll, Konrad ; Sick, Bernhard ; Fuchs, Erich:The IMPTC Dataset: An Infrastructural Multi-Person Trajectory and Context Dataset.. In: IEEE Intelligent Vehicles Symposium (IV) : IEEE, 2023, pp. 1–7
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Inner-city intersections are among the most critical traffic areas for injury and fatal accidents. Automated vehicles struggle with the complex and hectic everyday life within those areas. Sensor-equipped smart infrastructures, which can cooperate with vehicles, can benefit automated traffic by extending the perception capabilities of drivers and vehicle perception systems. Additionally, they offer the opportunity to gather reproducible and precise data of a holistic scene understanding, including context information as a basis for training algorithms for various applications in automated traffic. Therefore, we introduce the Infrastructural Multi-Person Trajectory and Context Dataset (IMPTC). We use an intelligent public inner-city intersection in Germany with visual sensor technology. A multi-view camera and LiDAR system perceives traffic situations and road users’ behavior. Additional sensors monitor contextual information like weather, lighting, and traffic light signal status. The data acquisition system focuses on Vulnerable Road Users (VRUs) and multiagent interaction. The resulting dataset consists of eight hours of measurement data. It contains over 2,500 VRU trajectories, including pedestrians, cyclists, e-scooter riders, strollers, and wheelchair users, and over 20,000 vehicle trajectories at different day times, weather conditions, and seasons. In addition, to enable the entire stack of research capabilities, the dataset includes all data, starting from the sensor-, calibration- and detection data until trajectory and context data. The dataset is continuously expanded and is available online for non-commercial research at https://github.com/kav-institute/imptc-dataset
Beinert, Dominik ; Holzhüter, Clara ; Thomas, Josephine ; Vogt, Stephan: Power flow forecasts at transmission grid nodes using Graph Neural Networks. In: Energy and AI vol. 14, Elsevier (2023), Nr. 1, p. 100262
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The increasing share of renewable energy in the electricity grid and progressing changes in power consumption have led to fluctuating, and weather-dependent power flows. To ensure grid stability, grid operators rely on power forecasts which are crucial for grid calculations and planning. In this paper, a Multi-Task Learning approach is combined with a Graph Neural Network (GNN) to predict vertical power flows at transformers connecting high and extra-high voltage levels. The proposed method accounts for local differences in power flow characteristics by using an Embedding Multi-Task Learning approach. The use of a Bayesian embedding to capture the latent node characteristics allows to share the weights across all transformers in the subsequent node-invariant GNN while still allowing the individual behavioral patterns of the transformers to be distinguished. At the same time, dependencies between transformers are considered by the GNN architecture which can learn relationships between different transformers and thus take into account that power flows in an electricity network are not independent from each other. The effectiveness of the proposed method is demonstrated through evaluation on two real-world data sets provided by two of four German Transmission System Operators, comprising large portions of the operated German transmission grid. The results show that the proposed Multi-Task Graph Neural Network is a suitable representation learner for electricity networks with a clear advantage provided by the preceding embedding layer. It is able to capture interconnections between correlated transformers and indeed improves the performance in power flow prediction compared to standard Neural Networks. A sign test shows that the proposed model reduces the test RMSE on both data sets compared to the benchmark models significantly.
Hornung, G. ; Kohpeiß, M.:Datenschutzzertifizierung: Ende des Dornröschenschlafs? Potentiale und Erfolgsfaktoren der Zertifizierung als Instrument für eine effektive und grundrechtsorientierte Data Governance.. In: Friedewald, M. ; Roßnagel, A. ; Neuburger, R. ; Bieker, F. ; Hornung, G. (eds.): Daten-Fairness in einer globalisierten Welt, 2023, pp. 173–200
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Heidecker, Florian ; Susetzky, Tobias ; Fuchs, Erich ; Sick, Bernhard:Context Information for Corner Case Detection in Highly Automated Driving.. In: IEEE International Conference on Intelligent Transportation Systems (ITSC) : IEEE, 2023, pp. 1522–1529
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Context information provided along with a dataset can be very helpful for solving a problem because the additional knowledge is already available and does not need to be extracted. Moreover, the context indicates how diverse a dataset is, i.e., how many samples per context category are available to train and test machine learning (ML) models. In this article, we present context annotations for the BDD100k image dataset. The annotations comprise, for instance, information about daytime, road condition (dry/wet), and dirt on the windshield. Sometimes, no or only little data are available for unique or rare combinations of these context attributes. However, data that matches these context conditions is crucial when discussing corner cases: Firstly, most ML models, e.g., object detectors, are not trained on such data, which leads to the assumption that they will perform poorly in those situations. Secondly, data containing corner cases are required for validating ML models. With this in mind, separate ML models dedicated to context detection are useful for expanding the training set with additional data of special interest, such as corner cases.
Meier, David ; Ragunathan, Rishan ; Degener, Sebastian ; Liehr, Alexander ; Vollmer, Malte ; Niendorf, Thomas ; Sick, Bernhard: Reconstruction of incomplete X-ray diffraction pole figures of oligocrystalline materials using deep learning. In: Scientific Reports vol. 13, Springer Nature (2023), Nr. 1, p. 5410
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X‑ray diffraction crystallography allows non‑destructive examination of crystal structures. Furthermore, it has low requirements regarding surface preparation, especially compared to electron backscatter diffraction. However, up to now, X‑ray diffraction has been highly time‑ consuming in standard laboratory conditions since intensities on multiple lattice planes have to be recorded by rotating and tilting. Furthermore, examining oligocrystalline materials is challenging due to the limited number of diffraction spots. Moreover, commonly used evaluation methods for crystallographic orientation analysis need multiple lattice planes for a reliable pole figure reconstruction. In this article, we propose a deep‑learning‑based method for oligocrystalline specimens, i.e., specimens with up to three grains of arbitrary crystal orientations. Our approach allows faster experimentation due to accurate reconstructions of pole figure regions, which we did not probe experimentally. In contrast to other methods, the pole figure is reconstructed based on only a single incomplete pole figure. To speed up the development of our proposed method and for usage in other machine learning algorithms, we introduce a GPU‑based simulation for data generation. Furthermore, we present a pole widths standardization technique using a custom deep learning architecture that makes algorithms more robust against influences from the experiment setup and material.
Lorenz, L. ; Schild, H.-H.: Datenübermittlung an GKV-Spitzenverband im Datentransparenzverfahren, Anmerkung zu SG Frankfurt am Main, Beschluss v. 01.06.2022 – S 25 KR 932/22 DS ER. In: Zeitschrift für Datenschutz vol. 2023 (2023), pp. 167–171
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Horstmann, Aike ; Krämer, Nicole ; Geminn, Christian ; Bile, Tamer ; Weber, Carina ; Manzeschke, Arne ; Mavrina, Lina ; Kopp, Stefan ; et al.:Kann sich künstliche Intelligenz selbst erklären? – Wie Erklärungen aus rechtswissenschaftlicher und ethischer Sicht gestaltet sein sollten und was Psychologie und Informatik dazu beitragen können : Universität Duisburg-Essen, 2023
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Hinton, Peta ; Lorenz-Meyer, Dagmar ; Barla, Josef ; Braun, Veit ; Draude, Claude ; Ernst, Waltraud ; Liu, Xin ; Mauthner, Natasha ; et al.:Curated Panel: ‘New Materialisms Across the Natural Sciences and Humanities: Trajectories, Inspirations, and Stirrings’.. In: Colman, F. ; van der Tuin, I. (eds.): Methods and Genealogies of New Materialisms : Edinburg University Press, 2023, pp. 212–238
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Muttach, J.-P. ; Köppel, M. ; Hornung, G.: Google Topics als Ausweg aus dem Cookie-Dilemma? Rechtliche Anforderungen an die technische Alternative zur individualisierten Werbung im Internet. In: Computer und Recht vol. 2023 (2023), pp. 644–655
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Li, Mahei Manhai ; Reinhard, Philipp ; Oeste-Reiss, Sarah ; Peters, Christoph ; Leimeister, Jan Marco: A Value Co-Creation Perspective on Data Labeling in Hybrid Intelligence Systems: A Design Study. In: Information Systems (IS) (2023), p. 102311
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The adoption of innovative technologies confronts IT-Service-Management (ITSM) with an increasing volume and variety of requests. Artificial intelligence (AI) possesses the potential to augment customer service employees. However, the training data for AI systems are annotated by domain experts with little interest in labeling correctly due to their limited perceived value. Ultimately, insufficient labeled data leads to diminishing returns in AI performance. Following a design science research approach, we provide a novel human-in-the-loop (HIL) design for ITSM support ticket recommendations by incorporating a value co-creation perspective. The design incentivizes ITSM agents to provide labels during their everyday ticket-handling procedures. We develop a functional prototype based on 17,120 support tickets provided by a pilot partner as an instantiation and evaluate the design through accuracy metrics and user evaluations. Our evaluation revealed that recommendations after label improvement showed increased user ratings, and users are willing to contribute their domain knowledge. The improved labels can be utilized to continuously enhance the AI system as rewards showed increasing growth with decreasing marginal returns. Overall, our results emphasize agents' need for value-in-use by providing better results if they improve the labeling of support tickets pre-labeled by AI. Thus, we provide prescriptive knowledge of a novel HIL design that enables efficient and interactive labeling in the context of diverse applications of reinforcement learning systems.
Lorenz, L.: Neue „Digitale DNA“ der EU oder nur ein (weiterer) Schritt politischen Symbolcharakters? – Teil II. In: E-Zeitschrift für Wirtschaftsrecht und Digitalisierung (LRZ) vol. 2023 (2023), Nr. Rn., p. 289 ff.
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Schmitt, Anuschka ; Zierau, Naim ; Janson, Andreas ; Leimeister, Jan Marco: The Role of AI-Based Artifacts’ Voice Capabilities for Agency Attribution. In: Journal of the Association for Information Systems (JAIS) vol. 24 (2023), Nr. 4, pp. 980–1004
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The pervasiveness and increasing sophistication of artificial intelligence (AI)-based artifacts within private, organizational, and social realms change how humans interact with machines. Theorizing about the way humans perceive AI-based artifacts is crucial to understanding why and to what extent humans deem these as competent for, i.e., decision-making, yet has traditionally taken a modality-agnostic view. In this paper, we theorize about a particular case of interaction, namely that of voice-based interaction with AI-based artifacts. The capabilities and perceived naturalness of such artifacts, fueled by continuous advances in natural language processing, induce users to deem an artifact as able to act autonomously in a goal-oriented manner. We argue that there is a positive direct relationship between the voice capabilities of an artifact and users’ agency attribution, ultimately obscuring the artifact’s true nature and competencies. This relationship is further moderated by an artifact’s actual agency, uncertainty, and user characteristics.
Lorenz, L.: Die „ePA für alle“ zwischen Gesundheits- und Datenschutz (Teil 1) – Das für die elektronische Patientenakte angekündigte opt-out-Modell auf dem verfassungs- und EU-datenschutzrechtlichen Prüfstand. In: Zeitschrift für Gesundheit und Pflege vol. 2023 (2023), pp. 132–154
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Heinrich, René ; Scholz, Christoph ; Vogt, Stephan ; Lehna, Malte: Targeted Adversarial Attacks on Wind Power Forecasts. In: Machine Learning vol. 113, Springer (2023), Nr. 2, pp. 863–889
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In recent years, researchers proposed a variety of deep learning models for wind power forecasting. These models predict the wind power generation of wind farms or entire regions more accurately than traditional machine learning algorithms or physical models. However, latest research has shown that deep learning models can often be manipulated by adversarial attacks. Since wind power forecasts are essential for the stability of modern power systems, it is important to protect them from this threat. In this work, we investigate the vulnerability of two different forecasting models to targeted, semi-targeted, and untargeted adversarial attacks. We consider a Long Short-Term Memory (LSTM) network for predicting the power generation of individual wind farms and a Convolutional Neural Network (CNN) for forecasting the wind power generation throughout Germany. Moreover, we propose the Total Adversarial Robustness Score (TARS), an evaluation metric for quantifying the robustness of regression models to targeted and semi-targeted adversarial attacks. It assesses the impact of attacks on the model's performance, as well as the extent to which the attacker's goal was achieved, by assigning a score between 0 (very vulnerable) and 1 (very robust). In our experiments, the LSTM forecasting model was fairly robust and achieved a TARS value of over 0.78 for all adversarial attacks investigated. The CNN forecasting model only achieved TARS values below 0.10 when trained ordinarily, and was thus very vulnerable. Yet, its robustness could be significantly improved by adversarial training, which always resulted in a TARS above 0.46.
Hanika, Tom ; Hirth, Johannes: Conceptual Views on Tree Ensemble Classifiers. In: International Journal of Approximate Reasoning (2023), p. 108930
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Random Forests and related tree-based methods are popular for supervised learning from table based data. Apart from their ease of parallelization, their classification performance is also superior. However, this performance, especially parallelizability, is offset by the loss of explainability. Statistical methods are often used to compensate for this disadvantage. Yet, their ability for local explanations, and in particular for global explanations, is limited. In the present work we propose an algebraic method, rooted in lattice theory, for the (global) explanation of tree ensembles. In detail, we introduce two novel conceptual views on tree ensemble classifiers and demonstrate their explanatory capabilities on Random Forests that were trained with standard parameters.
Muttach, J.-P. ; Link, H.: Verarbeitung personenbezogener Daten in KI-Reallaboren nach dem KI-VO-E – Eine Herausforderung für den datenschutzrechtlichen Zweckbindungsgrundsatz. In: Computer und Recht vol. 2023 (2023), pp. 725–731
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Benner, Dennis ; Schöbel, Sofia:Stay with me - Conversational Churn Prevention in Digital Subscription Service.. In: European Conference on Information Systems (ECIS). Kristiansand, Norway, 2023
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Lots of organizations use subscription business models. However, with increasing competition and technological progress switching costs for customers are decreasing. This development can translate to serious issues for subscription-based businesses, requiring action. Traditionally, businesses used mailings or calls, which are costly, time-consuming and often not effective. In this research-in-progress paper, we explore conversational churn prevention as a potential remedy. We present a conversational agent with persuasive design features (e.g., nudges) and first results from a pre-study. We conduct an in-between subject experiment and interviews for our mixed-methods evaluation of our pre-study. Our work contributes to theory, by presenting more insights into the interaction quality of conversational agents in the context of churn prevention of digital services and the role of persuasive design. We support practitioners, by guiding them towards more effective use of conversational agents to improve their services and to predict churn.
Heissler, C. ; Ohly, S. ; Kern, M.: “Dear Manager, now I know what you expect”: Examining availability ambiguity in two studies. In: German Journal of Human Resource Management (2023), Nr. 23970022231196440
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Löber, L. I. ; König, I. ; Lange, S. ; David, K. ; Roßnagel, A.:Privacy by Design am Beispiel der kollaborativen kontextsensitiven NORA-App zur Kommunikationsunterstützung von Wissensarbeit ( Nr. Band 15) : ITeG Technical Reports, kassel university press, 2023
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Hornung, G.:Vorb. zu § 3a.. In: Verwaltungsrecht. VwVfG. 4. ed.. München : Verlag C.H.Beck, Loseblatt, 2023
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Heidecker, Florian ; Bieshaar, Maarten ; Sick, Bernhard: Corner Cases in Machine Learning Processes. In: AI Perspectives & Advances vol. 6 (2023), Nr. 1, pp. 1–17
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Applications using machine learning (ML), such as highly autonomous driving, depend highly on the performance of the ML model. The data amount and quality used for model training and validation are crucial. If the model cannot detect and interpret a new, rare, or perhaps dangerous situation, often referred to as a corner case, we will likely blame the data for not being good enough or too small in number. However, the implemented ML model and its associated architecture also influence the behavior. Therefore, the occurrence of prediction errors resulting from the ML model itself is not surprising. This work addresses a corner case definition from an ML model's perspective to determine which aspects must be considered. To achieve this goal, we present an overview of properties for corner cases that are beneficial for the description, explanation, reproduction, or synthetic generation of corner cases. To define ML corner cases, we review different considerations in the literature and summarize them in a general description and mathematical formulation, whereby the expected relevance-weighted loss is the key to distinguishing corner cases from common data. Moreover, we show how to operationalize the corner case characteristics to determine the value of a corner case. To conclude, we present the extended taxonomy for ML corner cases by adding the input, model, and deployment levels, considering the influence of the corner case properties.
Hornung, G. ; Schmidt, L.: Evaluation der digitalen Selbstbestimmung in benutzungsorientierten Gestaltungsprozessen. In: ITeG-Brown-Bag-Seminar Herausforderungen, Methoden und Modelle in der soziotechnischen IT-Gestaltung, Vortrag, ITeG-Brown-Bag-Seminar Herausforderungen, Methoden und Modelle in der soziotechnischen IT-Gestaltung, Vortrag.. Kassel (2023)
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Haenel, M. ; Söllner, M.:Harnessing Conversational AI in Higher Education: The Education Buddy - An Innovative Intervention for International Students Facing Study Difficulties.. In: Lecture Notes in Informatics (LNI). INFORMATIK 2023, Berlin, 2023
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Herde, Marek ; Huseljic, Denis ; Sick, Bernhard ; Bretschneider, Ulrich ; Oeste-Reiß, Sarah:Who knows best? A Case Study on Intelligent Crowdworker Selection via Deep Learning.. In: Workshop on Interactive Adapative Learning (IAL), ECML PKDD, 2023, pp. 14–18
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Crowdworking is a popular approach for annotating large amounts of data to train deep neural networks. However, parts of the annotations are often erroneous. In a case study, we demonstrate how an intelligent crowdworker selection via deep learning reduces the number of erroneous annotations and, thus, the annotation costs of obtaining reliable data for training deep neural networks.
Bauer, Maximilian ; Alhamwy, Yasin ; Geihs, Kurt:Persistent UAV Formation Flight by Dynamic Agent Replacement and Leader Selection.. In: Ma, Y. (ed.): Progressive and Integrative Ideas and Applications of Engineering Systems Under the Framework of IOT and AI. Singapore : Springer Nature Singapore, 2023 — ISBN 978-981-99-6303-4, pp. 106–117
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First responders use Unmanned Aerial Vehicles (UAV) in disaster response to obtain a situational overview. Flying in a formation has the advantage of having multiple airborne sensors and cameras. However, UAV formations are limited in terms of flight time. In this paper we present a system that is capable of achieving persistent formation flight. The system does not need a central coordination unit and is self-organizing by triggering UAVs on the ground to take-off and join the formation whenever a UAV in the formation is about to run out of battery. The replacement process allows the formation to be kept intact for as long as possible. Onboard each UAV, the flight controller handles the formation-keeping and trajectory following while a higher level multi-agent-coordination unit accesses the flight controller to send commands. The leader-follower formation is designed to be rigid and independent of the number of UAVs present in the formation. A prototype consisting of four simulated UAVs was implemented as a proof of concept, which worked as expected.
Lorenz, L.: Die „ePA für alle“ zwischen Gesundheits- und Datenschutz (Teil 2) – Das für die elektronische Patientenakte angekündigte opt-out-Modell auf dem verfassungs- und EU-datenschutzrechtlichen Prüfstand. In: Zeitschrift für Gesundheit und Pflege vol. 2023 (2023), pp. 165–183
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Lorenz, L.: Die Berliner „Kirchensteuer-Rasterfahndung“ auf dem (gerichtlichen) Prüfstand. In: Die Öffentliche Verwaltung vol. 2023 (2023), pp. 55–66
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Lorenz, L.: Neue „Digitale DNA“ der EU oder nur ein (weiterer) Schritt politischen Symbolcharakters? – Teil I. In: E-Zeitschrift für Wirtschaftsrecht und Digitalisierung (LRZ) vol. 2023 (2023), Nr. Rn., p. 273 ff.
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Schild, H.-H.: Durchsetzung der DSGVO bei grenzüberschreitenden Datenschutzbeschwerden. Anmerkung zu dem vorgelegten Verordnungsentwurf der EU-Kommission. In: Datenschutz und Datensicherheit vol. 2023 (2023), pp. 565–570
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Schäfermeier, Bastian ; Hirth, Johannes ; Hanika, Tom: Research Topic Flows in Co-Authorship Networks. In: Scientometrics vol. 128 (2023), Nr. 9, pp. 5051–5078
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In scientometrics, scientific collaboration is often analyzed by means of co-authorships. An aspect which is often overlooked and more difficult to quantify is the flow of expertise between authors from different research topics, which is an important part of scientific progress. With the Topic Flow Network (TFN) we propose a graph structure for the analysis of research topic flows between scientific authors and their respective research fields. Based on a multi-graph and a topic model, our proposed network structure accounts for intratopic as well as intertopic flows. Our method requires for the construction of a TFN solely a corpus of publications (i.e., author and abstract information). From this, research topics are discovered automatically through non-negative matrix factorization. The thereof derived TFN allows for the application of social network analysis techniques, such as common metrics and community detection. Most importantly, it allows for the analysis of intertopic flows on a large, macroscopic scale, i.e., between research topic, as well as on a microscopic scale, i.e., between certain sets of authors. We demonstrate the utility of TFNs by applying our method to two comprehensive corpora of altogether 20 Mio. publications spanning more than 60 years of research in the fields computer science and mathematics. Our results give evidence that TFNs are suitable, e.g., for the analysis of topical communities, the discovery of important authors in different fields, and, most notably, the analysis of intertopic flows, i.e., the transfer of topical expertise. Besides that, our method opens new directions for future research, such as the investigation of influence relationships between research fields.
Herde, Marek ; Huseljic, Denis ; Sick, Bernhad ; Bretschneider, Ulrich ; Oeste-Reiss, Sarah:Who knows best? A Case Study on Intelligent Crowdworker Selection via Deep Learning.. In: International Workshop & Tutorial on Interactive Adaptive Learning (IAL). Torino, Italy, 2023
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Crowdworking is a popular approach for annotating large amounts of data to train deep neural networks. However, parts of the annotations are often erroneous. In a case study, we demonstrate how an intelligent crowdworker selection via deep learning reduces the number of erroneous annotations and, thus, the annotation costs of obtaining reliable data for training deep neural networks.
Lorenz, L.: Selbstständige Evangelisch-Lutherischen Kirche (SELK) unterfällt DS-GVO, Anmerkung zu VG Hannover, Urteil v. 30.11.2022 – 10 A 1195/21. In: Neue Zeitschrift für Verwaltungsrecht vol. 2023 (2023), pp. 1027–1032
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Herde, Marek ; Huseljic, Denis ; Sick, Bernhard: Multi-annotator Deep Learning: A Probabilistic Framework for Classification. In: Transactions on Machine Learning Research (2023)
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Solving complex classification tasks using deep neural networks typically requires large amounts of annotated data. However, corresponding class labels are noisy when provided by error-prone annotators, e.g., crowdworkers. Training standard deep neural networks leads to subpar performances in such multi-annotator supervised learning settings. We address this issue by presenting a probabilistic training framework named multi-annotator deep learning (MaDL). A downstream ground truth and an annotator performance model are jointly trained in an end-to-end learning approach. The ground truth model learns to predict instances' true class labels, while the annotator performance model infers probabilistic estimates of annotators' performances. A modular network architecture enables us to make varying assumptions regarding annotators' performances, e.g., an optional class or instance dependency. Further, we learn annotator embeddings to estimate annotators' densities within a latent space as proxies of their potentially correlated annotations. Together with a weighted loss function, we improve the learning from correlated annotation patterns. In a comprehensive evaluation, we examine three research questions about multi-annotator supervised learning. Our findings show MaDL's state-of-the-art performance and robustness against many correlated, spamming annotators.
Lorenz, L.: Koordinierungsrechtliche Betrachtung der Indexierung mitgliedstaatlicher Familienleistungen, speziell des deutschen Kindergeldes. In: Neue Zeitschrift für Familienrecht vol. 2023 (2023), pp. 97–109
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Schild, H.-H.: Livestream-Unterricht an Schulen ohne Einwilligung der Lehrkräfte, Anmerkung zu EuGH, Urteil v. 30.3.2023 – C-34/21. In: Zeitschrift für Datenschutz vol. 2023 (2023), pp. 391–396
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Schild, H.-H.: Unterlassungsanspruch nach der DS-GVO? – Zugleich Besprechung von OLG Frankfurt, Urt. v. 30.03.2023 – 16 U 22/22. In: Datenschutz und Datensicherheit vol. 2023 (2023), pp. 513–518
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Schild, H.-H.:§§ 6 (zusammen mit Stahmann, R.), 73-73b, 78-78a, 86, 87-88, 90-91g, 105a AufenthG (§§ 91b-91g AufenthG zusammen mit Buus, M.), § 14 FreizügG, §§ 7-8, 31, 87c-88a AsylG, § 31-33, 37 StAG (§§ 32, 33 StAG zusammen mit Buus, M., § 37 StAG zusammen mit Hofmann, R. M.).. In: Hofmann, R. M. (ed.): Ausländerrecht. AufenthG, FreizügG/EU, Assoziationsrecht, EU-Abkommen, AsylG, GG, StAG, BVFG, Kommentar, 3. Auflage : Nomos Verlagsgesellschaft, Baden-Baden, 2023
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Schild, H.-H.: Stärkung des Rechts auf Auskunft von Empfängerdaten nach DSGVO, Anmerkung zu EuGH, Urt. v. 12.01.2023 – C-154/21. In: Verbraucher und Recht vol. 2023 (2023), pp. 188–193
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Schmitt, Anuschka ; Rentsch, Stefanie ; Janson, Andreas:Social Audio: Conceptualizing Voice-Based Online Social Networks and their Privacy Implications.. In: Annual Meeting of the Academy of Management (AOM). Boston, Massachusetts, USA, 2023
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This paper explores the nature and implications of social audio: online social networks (OSNs) that enable users to interact via voice. The paper contributes to basic science by offering a precise conceptualization of voice-based OSNs and their design features. We posit that the defining characteristics of traditional OSNs also hold for social audio, yet that novel features (i.e., creating rooms) and modifications of traditional features (i.e., like) through voice idiosyncrasies can be found. This work also shows how social audio introduces novel privacy implications, particularly driven by the richness and risks of voice as an interaction modality. Using three illustrative cases, we demonstrate applications of social audio and how privacy implications remain largely unaddressed. Specifically, we find that the networks considered show very few specific features addressing the risks of voice-based interaction and that current privacy policies do not reflect these risks nor offer mitigation measures. We bridge our findings and extensions for future research by discussing potential approaches in terms of network architecture features for social audio providers to pursue in order to ensure user privacy.
Schild, H.-H.: Der schwierige Weg zum Hinweisgeberschutz – eine nicht so leicht zu erfassende Regelungsmaterie. In: Zeitschrift für Personalvertretungsrecht vol. 2023 (2023), pp. 53–57
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Schild, H.-H.: Der Entwurf eines Gesetzes zur Novellierung des Hessischen Personalvertretungsrechts – eine Betrachtung einzelner Änderungsvorhaben. In: Zeitschrift für Personalvertretungsrecht vol. 2023 (2023), pp. 24–27
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Schild, H.-H.: Automatischer Abgleich von Fluggastdaten mit Fahndungsdatenbanken, Anmerkung zu VG Wiesbaden, Urteil v. 6.12.2022 – 6 K 805/19.WI. In: Zeitschrift für Datenschutz vol. 2023 (2023), pp. 240–244
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Lorenz, L.: Weiterleitung von Daten der Jugendhilfe eines unbegleiteten minderjährigen Flüchtlings im Rahmen des Asylverfahrens, Anmerkung zu VG München, Urt. v. 22.9.2022 – M 10 K 21.30727. In: Neue Zeitschrift für Familienrecht vol. 2023 (2023), p. 335
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Lorenz, L.: Neue „Digitale DNA“ der EU oder nur ein (weiterer) Schritt politischen Symbolcharakters? – Teil III. In: E-Zeitschrift für Wirtschaftsrecht und Digitalisierung (LRZ) vol. 2023 (2023), Nr. Rn., p. 306 ff.
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Schild, H.-H.: EuGH: Datenverarbeitung im Beschäftigungskontext, Anmerkung zu EuGH, Urteil v. 30.3.2023 – C-34/21. In: Datenschutz und Datensicherheit vol. 2023 (2023), pp. 376–382
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Sälzer, Marco ; Beddar-Wiesing, Silvia:Time-aware Robustness of Temporal Graph Neural Networks for Link Prediction.. In: International Symposium on Temporal Representation and Reasoning (TIME), 2023, pp. 19:1–19:3
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Graph Neural Networks (GNNs) provide a framework for computing functions over graphs based on learnable parameters, which gained much attention in recent years. The most popular GNN models, so-called convolutional GNN or message-passing GNN apply a neighborhood aggregation procedure to each node in a graph to compute its output. Usually, such GNNs are used for classification or prediction tasks over static graphs. However, this limits their applicability in contexts like social networks or knowledge graphs, where underlying graphs change stepwise or time-continuously. Temporal Graph Neural Networks (TGNN) try to close this gap. The general idea of TGNN is to generalize the neighborhood aggregation procedure mentioned above to temporal graphs, usually represented as a tuple of a base graph with a series of time-stamped observed changes. In most applications involving Neural Network based models, giving reliable safety certificates are highly desirable but also a significant challenge, especially because of the blackbox nature of neural models. In this extended abstract, we address the topic of verifying TGNN, which is an unexplored area of research. We present a first notion of a time-aware robustness property for TGNN used for link prediction tasks, motivated by recent work on similar time-aware attacks. Furthermore, we discuss our ongoing work regarding promising verification approaches for the presented or similar safety properties and possible next steps in this research direction.
Huang, Zhixin ; He, Yujiang ; Herde, Marek ; Huseljic, Denis ; Sick, Bernhard:Active Learning with Fast Model Updates and Class-Balanced Selection for Imbalanced Datasets.. In: Workshop on Interactive Adapative Learning (IAL), ECML PKDD, 2023, pp. 28–45
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Active learning strategies aim to minimize the number of queried samples for model training. However, two challenges in pool-based deep active learning on imbalanced datasets are observed in experiments: (1) the declining performance of active learning strategies due to imbalanced class distribution; (2)~the lack of sample diversity in acquisition batches due to the absence of timely model updates. This paper proposes the AL-FaMoUS, a general solution combining fast model updates and class-balanced minibatch selection to the active learning process. Furthermore, a simplification of the AL-FaMoUS, which selects one single sample in each acquisition minibatch, is experimentally evaluated on four image and three time-series imbalanced datasets. The results demonstrate that the implemented AL-FaMoUS outperforms the other adopted AL strategies, including uncertainty sampling and BALD solely combined with either the fast model update or the class balance selection strategy, in terms of accuracy and Macro F1 score.
Schindler, S.:Biometrische Videoüberwachung: Zur Zulässigkeit biometrischer Gesichtserkennung in Verbindung mit Videoüberwachung zur Bekämpfung von Straftaten.. In: Baumgärtel, M. ; Kiparski, G. (eds.): DGRI Jahrbuch 2021/2022. Köln, 2023, pp. 487–508
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Geminn, Christian ; Pham, Thi Thanh Huong: Das vietnamesische Datenschutzrecht – Neuerungen durch das Dekret Nr. 13/2023/ND-CP. In: Zeitschrift für Datenschutz (2023), Nr. 8, pp. 440–446
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Hirth, Johannes ; Horn, Viktoria ; Stumme, Gerd ; Hanika, Tom: Ordinal Motifs in Lattices (2023)
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Lattices are a commonly used structure for the representation and analysis of relational and ontological knowledge. In particular, the analysis of these requires a decomposition of a large and high-dimensional lattice into a set of understandably large parts. With the present work we propose /ordinal motifs/ as analytical units of meaning. We study these ordinal substructures (or standard scales) through (full) scale-measures of formal contexts from the field of formal concept analysis. We show that the underlying decision problems are NP-complete and provide results on how one can incrementally identify ordinal motifs to save computational effort. Accompanying our theoretical results, we demonstrate how ordinal motifs can be leveraged to retrieve basic meaning from a medium sized ordinal data set.
Schlegel, L. ; Schöbel, S. ; Söllner, M.:Nudging Digital Learning – An Experimental Analysis of Social Nudges to Manage Self-Regulated Learning and Online Learning Success.. In: Hawaii International Conference on System Sciences, Maui, Hawaii, USA, 2023
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Helmke, J. T. ; Link, H. ; Schild, H.-H.: Zertifizierungskriterien für Verarbeitungstätigkeiten. Luxemburg prescht vor – Eine Analyse. In: Datenschutz und Datensicherheit vol. 2023 (2023), pp. 100–107
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Aßenmacher, Matthias ; Rauch, Lukas ; Goschenhofer, Jann ; Stephan, Andreas ; Bischl, Bernd ; Roth, Benjamin ; Sick, Bernhard:Towards Enhancing Deep Active Learning with Weak Supervision and Constrained Clustering.. In: Workshop on Interactive Adapative Learning (IAL), ECML PKDD, 2023, pp. 65–73
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Three fields revolving around the question of how to cope with limited amounts of labeled data are Deep Active Learning (DAL), deep Constrained Clustering (CC), and Weakly Supervised Learning (WSL). DAL tackles the problem by adaptively posing the question of which data samples to annotate next in order to achieve the best incremental learning improvement, although it suffers from several limitations that hinder its deployment in practical settings. We point out how CC algorithms and WSL could be employed to overcome these limitations and increase the practical applicability of DAL research. Specifically, we discuss the opportunities to use the class discovery capabilities of CC and the possibility of further reducing human annotation efforts by utilizing WSL. We argue that the practical applicability of DAL algorithms will benefit from employing CC and WSL methods for the learning and labeling process. We inspect the overlaps between the three research areas and identify relevant and exciting research questions at the intersection of these areas.
Hornung, G.:Art. 42, 43 DSGVO und § 39 BDSG.. In: Eßer, M. ; Kramer, P. ; v. Lewinski, K. (eds.): Auernhammer. Datenschutz-Grundverordnung, Bundesdatenschutzgesetz und Nebengesetze, Kommentar, 8. Auflage. Köln : Carl Heymanns Verlag, 2023
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Hänel, Martin ; Söllner, Matthias:Harnessing Conversational AI in Higher Education: The Education Buddy - An Innovative Intervention for International Students Facing Study Difficulties.. In: GI-Jahrestagung, LNI. vol. P-337 : Gesellschaft für Informatik, Bonn, 2023 — ISBN 978-3-88579-731-9, pp. 385–388
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As Germany anticipates a demographic shift necessitating reliance on foreign professionals, the integration of international students becomes critical. Despite being a preferred non-English speaking study destination, the country's academic environment – encompassing course materials, lectures, and organizational aspects – is predominantly German. This poses a significant language barrier for the 440,000 foreign students currently studying in Germany, potentially impeding their academic success and future professional integration. To mitigate this, we introduce the Education Buddy, a Conversational Agent (CA) designed to assist international students in navigating their studies. The Education Buddy emerges as a potentially effective tool for facilitating the successful participation of international students within the German academic system.
Schmidt, L.: Unbeschwert urban unterwegs. In: Abschlusstreffen "Individuelle und adaptive Technologien für eine vernetzte Mobilität", Vortrag, Abschlusstreffen "Individuelle und adaptive Technologien für eine vernetzte Mobilität", Vortrag.. Berlin (2023)
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Geminn, Christian ; Tatsumi, Tomohiko ; Terada, Mayu: Digitalisierung der Verwaltung – Ein Blick auf Deutschland und Japan. In: Die Öffentliche Verwaltung vol. 76 (2023), Nr. 20, pp. 847–859
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Geminn, C. ; Johannes, P. C. ; Nebel, M. ; Bile, T. (eds.):Datenschutzrechtliche Beurteilung von Learning Analytics an Hochschulen in NRW, 2023
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Helmke, J. T. ; Link, H.: Das Verhältnis von Art. 6 Abs. 2 und 3 DSGVO. In: Datenschutz und Datensicherheit vol. 2023 (2023), pp. 708–714
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Geminn, Christian ; Johannes, Paul C. ; Müller, Johannes ; Nebel, Maxi: Alternative Daten-Governance – Länderreporte für Deutschland, die USA, Kenia und Indien. In: ZD-Aktuell (2023), Nr. 5,01102
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Moallemy-Oureh, Alice ; Beddar-Wiesing, Silvia ; Nather, Rüdiger ; Thomas, Josephine:Marked Neural Spatio-Temporal Point Process Involving a Dynamic Graph Neural Network.. In: Workshop on Temporal Graph Learning (TGL), NeurIPS, 2023, pp. 1–7
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Temporal Point Processes (TPPs) have recently become increasingly interesting for learning dynamics in graph data. A reason for this is that learning on dynamic graph data is becoming more relevant, since data from many scientific fields, ranging from mathematics, biology, social sciences, and physics to computer science, is naturally related and inherently dynamic. In addition, TPPs provide a meaningful characterization of event streams and a prediction mechanism for future events. Therefore, (semi-)parameterized Neural TPPs have been introduced whose characterization can be (partially) learned and, thus, enable the representation of more complex phenomena. However, the research on modeling dynamic graphs with TPPs is relatively young, and only a few models for node attribute changes or evolving edges have been proposed yet. To allow for learning on fully dynamic graph streams, i.e., graphs that can change in their structure (addition/deletion of nodes/edge) and in their node/edge attributes, we propose a Marked Neural Spatio-Temporal Point Process (MNSTPP). It leverages a Dynamic Graph Neural Network to learn a Marked TPP that handles attributes and spatial data to model and predict any event in a graph stream.
Berkle, Yvonne ; Schmitt, Lukas ; Tolzin, Antonia ; Janson, Andreas ; Wambsganss, Thiemo ; Leimeister, Jan Marco ; Leuchter, Miriam: Measuring university students’ ability to recognize argument structures and fallacies. In: Frontiers in Psychology (Front. Psychol.) vol. 14 (2023), Nr. 1270931, pp. 1–17
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Theory: Argumentation is crucial for all academic disciplines. Nevertheless, a lack of argumentation skills among students is evident. Two core aspects of argumentation are the recognition of argument structures (e.g., backing up claims with premises, according to the Toulmin model) and the recognition of fallacies. As both aspects may be related to content knowledge, students studying different subjects might exhibit different argumentation skills depending on whether the content is drawn from their own or from a foreign subject. Therefore, we developed an instrument to measure the recognition of both argument structures and fallacies among the groups of preservice teachers and business economics students in both their respective domains (pedagogy and economics), and a neutral domain (sustainability). For the recognition of fallacies, we distinguished between congruent and incongruent fallacies. In congruent fallacies, the two aspects of argument quality, i.e., deductive validity and inductive strength, provide converging evidence against high argument quality. In incongruent fallacies, these two aspects diverge. Based on dual process theories, we expected to observe differences in the recognition of congruent and incongruent fallacies. Aims: We investigated whether these two abilities are domain-specific and whether the recognition of fallacies depends on the congruence of two aspects of argument quality. Methods: 267 preservice teachers and 56 business economics students participated in the study. For the recognition of argument structures, participants assigned the five statements constituting one argument to the corresponding component according to the Toulmin model. For the recognition of fallacies, we created arguments and incorporated a common fallacy into some of them: formal fallacy, overgeneralization, irrelevance, or circularity. Participants rated whether the argument was cogent or not, which was followed by a brief justification. Results: Domain specificity could not be found for either of both abilities. For the recognition of fallacies, two dimensions were found: a congruent dimension (formal fallacies and overgeneralizations) and an incongruent dimension (irrelevance and circularity). Discussion: The instrument measures the recognition of both argument structures and fallacies in these two groups across domains. The recognition of fallacies differs depending on whether the deductive validity and the inductive strength of the argument are equally indicative of argument quality or not.
Geminn, Christian ; Johannes, Paul C. ; Müller, Johannes ; Nebel, Maxi:Data Governance in Germany – An Introduction ( Nr. 14, VIII) : ITeG Technical Reports, kassel university press, 2023
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Geminn, Christian ; Johannes, Paul C. ; Müller, Johannes K.M. ; Nebel, Maxi:Is that even legal? – A guide for builders experimenting with data governance in Germany : Mozilla, 2023
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Berkle, Yvonne ; Janson, Andreas ; Wambsganß, Thiemo ; Löfflad, Denise ; Leimeister, Jan Marco ; Leuchter, Miriam:Measuring students’ argumentation skills: validation of a test instrument.. In: EARLI Conference (EARLI). Thessaloniki, Greece, 2023
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The importance of argumentation skills for academic disciplines is well evident. Two core aspects of argumentation skills are a) the recognition of argumentation fallacies and b) the recognition of the structure of arguments. These two argumentation skills might be related to domain-specific knowledge. In our study, we aim to evaluate an instrument to assess the recognition of argumentation fallacies and the structure of arguments in the context of different domains. Thus, we implemented a self-developed instrument to measure both argumentation skills in different student groups (business economic students and pre-service teachers) in different domains: a) the study-domain of their own courses, b) the study-domain of the respective other courses and c) a neutral domain (sustainability). We assumed these three domains to represent different dimensions within the ability to recognize argumentation fallacies and within the ability to recognize argument structures. This assumption could not be confirmed, what leads to the assumption that our instrument captures cross-domain argumentation skills. However, our research implies a difference in the recognition of formal compared to informal argumentation fallacies. Furthermore, the results indicate that the instrument measures argumentative skills in both groups of students equally well.
Horn, Viktoria ; Draude, Claude:The Ladder of Participation as a Conceptual Tool for Sustainable Socio-Technical Design of Data-driven Digital Services.. In: Stephanidis, C. ; Antona, M. ; Ntoa, S. ; Salvendy, G. (eds.): HCI International 2023 Posters. Cham : Springer Nature Switzerland, 2023 — ISBN 978-3-031-35989-7, pp. 60–67
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Participation in the data economy is prone to unjust power imbalances. Individuals function as mere data sources and are left out of decisions on how, when, and where personal data is accumulated and processed. In this paper, we translate Arnsteins' `Ladder of Citizen Participation' to the field of the data economy to offer a conceptual lens to tackle power imbalances' underlying structures. For this, we derived assumptions from the application's ecosystem. We propose to encase the lowest rungs of the ladder with the term of involuntary participation and frame individuals as digital Citizens to avoid a mere focus on the economic dimension of participation. Building on this, we translate the eight rungs of Arnstein's original ladder to the new application field of the data economy through examples and design affordances corresponding with differing degrees of digital citizens' data agency. Eventually, we contemplate implications for socio-technical design resulting from the re-conceptualization of the `ladder' and formulate future research.
Schmidt, L.: Beratungsangebot zum Einsatz digitaler Technologien wie Mensch-Roboter-Kollaboration oder Augmented Reality. In: Auftaktveranstaltung "Mobility Transformation Hub" des Transformationsnetzwerks Region Kassel, Vortrag, Auftaktveranstaltung "Mobility Transformation Hub" des Transformationsnetzwerks Region Kassel, Vortrag.. Kassel (2023)
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Horn, Viktoria ; Draude, Claude: Policy design in data economy: In need for a public online news (eco)system? (2023)
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Socio-technical design embeds social investigations and inquiries into (Information) Technology Design processes. In this position paper, we propose, by using the aforementioned approach the design of technology and policies can simultaneously inform each other. Additionally we present data economy and particularly anchored online journalism platforms as use cases of policy need and design potentials.
Hupe, Anna ; Bretschneider, Ulrich ; Lange, Kirsten ; Trostmann, Tim ; Stubbemann, Lena ; Leimeister, Jan Marco ; Refflinghaus, Robert:Barriers of SMEs in Adopting Crowdsourcing and -working and Strategies to Overcome Them, ITeG Technical Reports. vol. 16. Kassel, Germany : Kassel University Press (kup), 2023 — ISBN 978-3-7376-1135-0
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Despite its undisputable benefits for firms, crowdsourcing and ‐working is currently rarely applied in small and medium sized enterprises (SME). Up to now extant literature provides only an incomplete picture of the barriers that hinder SMEs from adopting crowdsourcing and ‐working. Because of these incomplete insights on this phenomenon there is also a great deal of uncertainty on how to overcome these barriers. In the scope of an interview series with 15 SMEs we explore a range of different barriers. In a second round of interviews with crowdsourcing and ‐working experts (Delphi study) we reveal strategies that may help SMEs to overcome these barriers. The findings from these two studies not only expand the so far incomplete body of knowledge but also provide practical references for SMEs to overcome the barriers and to adopt crowdsourcing and ‐working for their value creation activities.
Magnussen, Birk Martin ; Stern, Claudius ; Sick, Bernhard:Leveraging Repeated Unlabelled Noisy Measurements to Augment Supervised Learning.. In: International Conference on Computational Intelligence and Intelligent Systems (CIIS) : ACM, 2023, pp. 1–6
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Often, producing large labelled datasets for supervised machine learning is difficult and expensive. In cases where the expensive part is due to labelling and obtaining ground truth, it is often comparably easy to acquire large datasets containing unlabelled data points. For reproducible measurements, it is possible to record information on multiple data points being from the same reproducible measurement series, which should thus have an equal but unknown ground truth. In this article, we propose a method to incorporate a dataset of such unlabelled data points for which some data points are known to be equal in end-to-end training of otherwise labelled data. We show that, with the example of predicting the carotenoid concentration in human skin from optical multiple spatially resolved reflection spectroscopy data, the proposed method is capable of reducing the required number of labelled data points to achieve the same prediction accuracy for different model architectures. In addition, we show that the proposed method is capable of reducing the negative impact of noisy data when performing a repeated measurement of the same sample.
Sandvoß, D. ; Schild, H.-H.: Neue Entwicklungen des Beschäftigtendatenschutzes im Lichte der Rechtsprechung des EUGH vom 30.3.2023. In: Neue Juristische Online-Zeitschrift vol. 2023 (2023), pp. 1056–1063
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Beverungen, Daniel ; zur Heiden, Philipp ; Lehrer, Christiane ; Trier, Matthias ; Bartelheimer, C.: Implementing Digital Responsibility through Information Systems Research – A Delphi Study of Objectives, Activities, and Challenges in IS Research.. Paderborn, Germany (2023)
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Gruhl, Christian ; Sick, Bernhard:Self-Integration and Agent Compatibility.. In: Autonomic Computing and Self-Organizing Systems Companion (ACSOS-C) : IEEE, 2023, pp. 71–73
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This position paper addresses the issue of agent compatibility in the context of self-aware microsystems (SAMs), which are SISSY systems with self-awareness capabilities. SAMs are designed to adapt their behaviour and collaborate with other agents in multi-agent settings. Achieving compatibility and effective collaboration between agents pose significant challenges, such as detecting incompatibility and discerning it from malicious behaviour. We present our concept of agent compatibility, highlight future challenges, and propose directions for future research in this area. By focusing on agent compatibility, we aim to advance the understanding of SAMs and promote successful collaboration among agents.
Hupe, Anna ; Bretschneider, Ulrich:Smarter Crowdwork by Applying Smart Contracts? European Conference on Information Systems.. In: European Conference on Information Systems (ECIS). Kristiansand, Norway, 2023
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Crowdworking is characterized by flexibly engaging a workforce that is recruited for only one task. After the task is completed, the crowdworker and the company do not collaborate anymore. To identify the best-suited crowdwoker for a certain task, crowd working platform providers offer different tools to match both parties. Matching a crowdworker with the required skills for a task is an important factor to complete a crowdworking campaign successfully. As of today, the principal agent theorem and high transaction costs decrease the effectiveness of such campaigns due to information asymmetries between crodworkers and crowdsourcers. Based on a qualitative approach, we structurally develop a currently existing crowdworking campaign process. We then theoretically analyze how smart contracts can support and simplify the identified process while reducing the challenges of transaction cost economics and the principal agent theorem.
Magnussen, Birk Martin ; Stern, Claudius ; Sick, Bernhard: Continuous Feature Networks: A Novel Method to Process Irregularly and Inconsistently Sampled Data With Position-Dependent Features. In: International Journal On Advances in Intelligent Systems vol. 16, ThinkMind (2023), Nr. 3&4, pp. 43–50
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Continuous Kernels have been a recent development in convolutional neural networks. Such kernels are used to process data sampled at different resolutions as well as irregularly and inconsistently sampled data. Convolutional neural networks have the property of translational invariance (e.g., features are detected regardless of their position in the measurement domain), which is unsuitable if the position of detected features is relevant for the prediction task. However, the capabilities of continuous kernels to process irregularly sampled data are still desired. This article introduces the continuous feature network, a novel method utilizing continuous kernels, for detecting global features at absolute positions in the data domain. Through a use case in processing multiple spatially resolved reflection spectroscopy data, which is sampled irregularly and inconsistently, we show that the proposed method is capable of processing such data directly without additional preprocessing or augmentation as is needed using comparable methods. In addition, we show that the proposed method is able to achieve a higher prediction accuracy than a comparable network on a dataset with position-dependent features. Furthermore, a higher robustness to missing data compared to a benchmark network using data interpolation is observed, which allows the network to adapt to sensors with a failure of individual light emitters or detectors without the need for retraining. The article shows how these capabilities stem from the continuous kernels used and how the number of available kernels to be trained affects the model. Finally, the article proposes a method to utilize the introduced method as a base for an interpretable model usable for explainable AI.
Lorenz, L.: Wegfall der Meldeobliegenheit – Kein Ruhen des Krankengeldanspruchs im eAU-Verfahren – Besprechung von LSG Nordrhein-Westfalen, Urt. v. 16.11.2022 – L 10 KR 245/22. In: Betriebs-Berater vol. 2023 (2023), pp. 827–831
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Sandrock, Christoph ; Herde, Marek ; Kottke, Daniel ; Sick, Bernhard:Exploring the Potential of Optimal Active Learning via a Non-myopic Oracle Policy.. In: Discovery Science (DS) : Springer, 2023, pp. 265–276
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Active learning aims to reduce the amount of labeled data while maximizing machine learning models’ performances. Currently, there is sparse research on the potential of an optimal active learning strategy. Therefore, we propose a non-myopic oracle policy that accesses the true labels of the data pool to approximate an optimal active learning strategy. We evaluate how the hyperparameters of this oracle policy influence its performance and empirically demonstrate that it is an upper baseline for common active learning strategies while being faster than a state-of-the-art oracle policy. For the sake of reproducibility, all the code related to our research is publicly available on our GitHub repository at https://github.com/ies-research/non-myopic-oracle-policy.
Hirth, Johannes ; Horn, Viktoria ; Stumme, Gerd ; Hanika, Tom:Automatic Textual Explanations of Concept Lattices.. In: Ojeda-Aciego, M. ; Sauerwald, K. ; Jäschke, R. (eds.): Graph-Based Representation and Reasoning, Lecture Notes in Computer Science. Cham : Springer Nature Switzerland, 2023 — ISBN 978-3-031-40960-8, pp. 138–152
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Lattices and their order diagrams are an essential tool for communicating knowledge and insights about data. This is in particular true when applying Formal Concept Analysis. Such representations, however, are difficult to comprehend by untrained users and in general in cases where lattices are large. We tackle this problem by automatically generating textual explanations for lattices using standard scales. Our method is based on the general notion of ordinal motifs in lattices for the special case of standard scales. We show the computational complexity of identifying a small number of standard scales that cover most of the lattice structure. For these, we provide textual explanation templates, which can be applied to any occurrence of a scale in any data domain. These templates are derived using principles from human-computer interaction and allow for a comprehensive textual explanation of lattices. We demonstrate our approach on the spices planner data set, which is a medium sized formal context comprised of fifty-six meals (objects) and thirty-seven spices (attributes). The resulting 531 formal concepts can be covered by means of about 100 standard scales.
Hupe, Anna ; Bretschneider, Ulrich:Revolutionizing Crowdworking Campaigns: Conquering Adverse Selection and Moral Hazard with the Help of Smart Contracts.. In: International Conference on Information Systems (ICIS). Hyderabad, India, 2023
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Crowdworking is increasingly being applied by companies to outsource tasks beyond their core competencies flexibly and cost-effectively to an unknown group. However, the anonymous and financially incentivized nature of crowdworkers creates information asymmetries and conflicts of interest, leading to inefficiencies and intensifying the principal-agent problem. Our paper offers a solution to the widespread problem of inefficient Crowdworking campaigns. We first derive the currently applied Crowdworking campaign process based on a qualitative study. Subsequently, we identify the broadest adverse selection and moral hazard problems in the process. We then analyze how the blockchain application of smart contracts can counteract those challenges and develop a process model that maps a Crowdworking campaign using smart contracts. We explain how our developed process significantly reduces adverse selection and moral hazard at each stage. Thus, our research provides approaches to make online labor more attractive and transparent for companies and online workers.
Hornung, G.: Datenschutzkonforme Digitalisierung in Schulen. Die Zertifizierung schulischer Informationssysteme als Chance für den Beschäftigtendatenschutz. In: Zeitschrift für Datenschutzrecht vol. 2023 (2023), pp. 311–316
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Gutjahr, A. ; Hornung, G. ; Kriegel, J. ; Schaller, T. ; Selzer, A. ; Spiecker gen. Döhmann, I. ; Stummer, S. ; Wilmer, T.:Systematic Privacy for large, real life Data Processing Systems, 2023
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Hornung, G.:Introduction (mit Simitis, S. / Spiecker gen. Döhmann, I.), Art. 1, Art. 94 und Art. 99 (mit Spiecker gen. Döhmann, I.) sowie Art. 3, Art. 4 Nr. 17 und Art. 27.. In: Spiecker gen. Döhmann, I. ; Papakonstantinou, V. ; Hornung, G. ; De Hert, P. (eds.): General Data Protection Regulation: Article-by-Article Commentary. Baden-Baden : Nomos Verlagsgesellschaft (in Kooperation mit C.H.Beck und Hart Publishing), 2023
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Göldi, Andreas ; Rietsche, Roman:WHERETO FOR AUTOMATED COACHING CONVERSATION: STRUCTURED INTERVENTION OR ADAPTIVE GENERATION?. In: European Conference on Information Systems (ECIS). Kristiansand, Norway, 2023
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In an age of lifelong learning, it is important that adult learners can effectively use their motivation and resources to reach their learning goals. In conversation, coaches can intervene to promote learning goal attainment by using behavioural change techniques (BCTs). In a coaching chatbot, such techniques can be ordered in an established, structured way to good effect. With recent technological advances, chatbot responses can be generated adaptively; this means that BCTs can be applied in an adaptive but less structured way. It is yet unclear whether this latter form of configuring coaching interventions is viable, how they compare to more established structured interventions, and whether both methods can be combined. For the purpose of answering this, we propose a 2x2 experimental design with the two intervention types as factors and goal attainment as the dependent variable. Results will indicate avenues for automating skilled conversation including choice of technology.
Gleich, Tristan ; Schöbel, Sofia ; Janson, Andreas:Meetings at Digital Workplaces – An Experimental Approach to Analyze Group Attachment and Organizational Commitment in Digital Worlds.. In: European Conference on Information Systems (ECIS). Kristiansand, Norway, 2023
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After facing the COVID-19 pandemic, organizations request their employees to work from home permanently. For an organization, this provides positive benefits such as reducing costs for rent. From an employee perspective, working from home can cause a feeling of isolation towards co-workers and lower attachment to an organization. One way to counteract this problem is to transfer the office to the digital world, especially spurred by the metaverse discussion to represent processes of our real world in digital environments that allow us to do everything in the same way digitally as we are doing in the real world. In this paper, we present a theoretical model for conducting a 2x2 between-subject experiment to analyze how digital real-world meeting experiences influence team attachment and organizational commitment. We contribute to theories such as the need of belonging and transfer them to digital environments and provide practical implications for designing digital offices.
Nebel, M. ; Johannes, P. C.:eIdentity im neuen Datenrecht: Das Zusammenspiel dezentraler rechtssicherer elektronischer Identifizierung und dem Recht auf Anonymität.. In: Friedewald, M. ; Roßnagel, A. ; Neuburger, R. ; Bieker, F. ; Hornung, G. (eds.): Daten-Fairness in einer globalisierten Welt : Nomos, 2023, pp. 201–224
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Huang, Zhixin ; He, Yujiang ; Sick, Bernhard:Spatio-Temporal Attention Graph Neural Network for Remaining Useful Life Prediction.. In: Computational Science and Computational Intelligence (CSCI) : IEEE, 2023, pp. 99–105
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RUL prediction plays a crucial role in the health management of industrial systems. Given the increasing complexity of systems, data-driven predictive models have attracted significant research interest. Upon reviewing the existing literature, it appears that many studies either do not fully integrate both spatial and temporal features or employ only a single attention mechanism. Furthermore, there seems to be inconsistency in the choice of data normalization methods, particularly concerning operating conditions, which might influence predictive performance. To bridge these observations, this study presents the Spatio-Temporal Attention Graph Neural Network. Our model combines graph neural networks and temporal convolutional neural networks for spatial and temporal feature extraction, respectively. The cascade of these extractors, combined with multihead attention mechanisms for both spatio-temporal dimensions, aims to improve predictive precision and refine model explainability. Comprehensive experiments were conducted on the CMAPSS dataset to evaluate the impact of unified versus clustering normalization. The findings suggest that our model performs state-of-the-art results using only the unified normalization. Additionally, when dealing with datasets with multiple operating conditions, cluster normalization enhances the performance of our proposed model by up to 27%.
Magnussen, Birk Martin ; Stern, Claudius ; Sick, Bernhard:Utilizing Continuous Kernels for Processing Irregularly and Inconsistently Sampled Data With Position-Dependent Features.. In: International Conference on Autonomic and Autonomous Systems (ICAS) : ThinkMind, 2023, pp. 49–53
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Continuous Kernels have been a recent development in convolutional neural networks. Such kernels are used to process data sampled at different resolutions as well as irregularly and inconsistently sampled data. Convolutional neural networks have the property of translational invariance (e.g., features are detected regardless of their position in the measurement domain), which is unsuitable for certain types of data, where the position of detected features is relevant. However, the capabilities of continuous kernels to process irregularly sampled data are still desired. This article introduces a novel method utilizing continuous kernels for detecting global features at absolute positions in the data domain. Through a use case in processing multiple spatially resolved reflection spectroscopy data, which is sampled irregularly and inconsistently, we show that the proposed method is capable of processing such data natively without additional preprocessing as is needed using comparable methods. In addition, we show that the proposed method is able to achieve a higher prediction accuracy than a comparable network on a dataset with position-dependent features. Furthermore, a higher robustness to missing data compared to a benchmark network using data interpolation is observed, which allows the network to adapt to sensors with individual failed components without the need for retraining.

2022[ to top ]

Klumbytė, Goda ; Draude, Claude: Prospects for a New Materialist Informatics: Introduction to a Special Issue. In: Matter: Journal of New Materialist Research vol. 3 (2022), Nr. 1, p. I-XIV
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Klumbytė, Goda: Almanac: Algorithmic Kinning. In: Matter: Journal of New Materialist Research vol. 3 (2022), Nr. 1, pp. 160–164
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Draude, Claude ; Klumbytė, Goda:Hybrid Spaces, Hybrid Methodologies: Finding Ways of Working with Social Sciences and Humanities in Human-Computer Interaction.. In: Kurosu, M. (ed.): Human-Computer Interaction. Theoretical Approaches and Design Methods, Lecture Notes in Computer Science. vol. 13302. Cham : Springer International Publishing, 2022 — ISBN 978-3-031-05311-5, pp. 40–56
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Starting from the need for responsible research and innovation in computing, this paper addresses the challenges that come from working with the social sciences and the humanities in human-computer interaction. In this paper, we attempt to move beyond interdisciplinarity towards transdisciplinarity. In particular, we explore concepts of hybridity and third spaces that are used in HCI participatory design practices. We trace back the postcolonial, decolonial and feminist scholarship basis of these concepts and look at how their critical potential can inform a conceptualization of what we call hybrid methodology in its own right. For this, we present three case studies. The first two work with experimental spaces in artistic research and research through design, the third works with intersectional critical and speculative methodologies in machine learning systems design. The first two case studies center around the discussions of disciplinary openness through experimentation as a way of moving beyond interdisciplinarity towards transdisciplinarity; the third zooms in on the role of critical theoretical knowledge from the social sciences and the humanities as knowledge that enables new orientations in research and design of IT systems.
Klumbytė, Goda ; Draude, Claude ; Taylor, Alex S.:Critical Tools for Machine Learning: Working with Intersectional Critical Concepts in Machine Learning Systems Design.. In: 2022 ACM Conference on Fairness, Accountability, and Transparency, FAccT ’22. New York, NY, USA : Association for Computing Machinery, 2022 — ISBN 9781450393522, pp. 1528–1541
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This paper investigates how intersectional critical theoretical concepts from social sciences and humanities research can be worked with in machine learning systems design. It does so by presenting a case study of a series of speculative design workshops, conducted in 2021. These workshops drew on intersectional feminist methodologies to construct interdisciplinary interventions in the design of machine learning systems, towards more inclusive, accountable, and contextualized systems design. The concepts of “situating/situated knowledges”, "figuration", "diffraction", and “critical fabulation/speculation” were taken up as theoretical and methodological tools for concept-led design workshops. This paper presents the design framework of the workshops and highlights tensions and possibilities with regards to interdisciplinary machine learning systems design towards more inclusive, contextualized, and accountable systems. It discusses the role that critical theoretical concepts can play in a design process and shows how such concepts can work as methodological tools that nonetheless require an open-ended experimental space to function. It presents insights and discussion points regarding what it means to work with critical intersectional knowledge that is inextricably connected to its historical and socio-political roots, and how this reframes what it might mean to design fair and accountable systems.
Klumbytė, G. ; Draude, C. (eds.):Prospects for a New Materialist Informatics. vol. 3, 2022
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Hornung, Gerrit: KI-Regulierung im Mehrebenensystem. Der KI-Verordnungsentwurf und regulatorische Perspektiven der Mitgliedstaaten. In: Datenschutz und Datensicherheit (2022), pp. 561–566
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Draude, Claude ; Gruhl, Christian ; Hornung, Gerrit ; Kropf, Jonathan ; Lamla, Jörn ; Leimeister, Jan Marco ; Sick, Bernhard ; Stumme, Gerd: Social Machines. In: Informatik Spektrum vol. 45 (2022), Nr. 1, pp. 38–42
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Social Machines sind ein Paradigma für die Gestaltung soziotechnischer Systeme, die unter Verwendung von Web- und Plattformlösungen das Potenzial digitaler Technologien mit der Eigenlogik sozialer Interaktion, Organisation und Strukturbildung auf neue Weise zusammenführen. Im Folgenden diskutieren wir das Paradigma der Social Machine aus den Perspektiven der Informatik, der Wirtschaftsinformatik, der Soziologie und des Rechts, um Orientierungspunkte für seine Gestaltung zu identifizieren. Der Begriff ist in der Literatur jedoch bisher nicht abschließend definiert sondern nur durch Beispiele illustriert.
Draude, Claude ; Hornung, Gerrit ; Klumbytė, Goda:Mapping Data Justice as a Multidimensional Concept Through Feminist and Legal Perspectives.. In: Hepp, A. ; Jarke, J. ; Kramp, L. (eds.): New Perspectives in Critical Data Studies: The Ambivalences of Data Power. Cham : Springer International Publishing, 2022 — ISBN 978-3-030-96180-0, pp. 187–216
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This chapter interrogates ``data justice'' through the lenses of feminist and legal studies to reconfigure data justice as a multidimensional, interdisciplinary practice in IT-design. First, we look at how data justice is framed in feminist research and feminist-informed critical data and design perspectives, as well as how it is conceptualised in law, particularly in the context of the European General Data Protection Regulation (GDPR) and legal debates around privacy in Europe. Second, we recommend conceptual shifts, design approaches, and legal measures towards data justice. Our chapter contributes to new perspectives in critical data studies by showing that data justice can provide a conceptual ground that serves both the needs of legal formalisation as well as feminist imperatives of contextualisation and specificity.
Klumbytė, Goda ; Britton, Ren Loren ; Laiti, Outi ; Prado de O. Martins, Luiza ; Snelting, Femke ; Ward, Caroline: Intraview: Speculative Materialities, Indigenous Worldings and Decolonial Futures in Computing & Design. In: Matter: Journal of New Materialist Research vol. 3 (2022), Nr. 1, pp. 182–196
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Herde, Marek ; Huang, Zhixin ; Huseljic, Denis ; Kottke, Daniel ; Vogt, Stephan ; Sick, Bernhard: Fast Bayesian Updates for Deep Learning with a Use Case in Active Learning. In: arXiv e-prints (2022), p. arXiv:2210.06112
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Retraining deep neural networks when new data arrives is typically computationally expensive. Moreover, certain applications do not allow such costly retraining due to time or computational constraints. Fast Bayesian updates are a possible solution to this issue. Therefore, we propose a Bayesian update based on Monte-Carlo samples and a last-layer Laplace approximation for different Bayesian neural network types, i.e., Dropout, Ensemble, and Spectral Normalized Neural Gaussian Process (SNGP). In a large-scale evaluation study, we show that our updates combined with SNGP represent a fast and competitive alternative to costly retraining. As a use case, we combine the Bayesian updates for SNGP with different sequential query strategies to exemplarily demonstrate their improved selection performance in active learning.
Pham, Tuan ; Kottke, Daniel ; Krempl, Georg ; Sick, Bernhard: Stream-based active learning for sliding windows under the influence of verification latency. In: Machine Learning vol. 111, Springer (2022), Nr. 6, pp. 2011–2036
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Stream-based active learning (AL) strategies minimize the labeling effort by querying labels that improve the classifier's performance the most. So far, these strategies neglect the fact that an oracle or expert requires time to provide a queried label. We show that existing AL methods deteriorate or even fail under the influence of such verification latency. The problem with these methods is that they estimate a label's utility on the currently available labeled data. However, when this label would arrive, some of the current data may have gotten outdated and new labels have arrived. In this article, we propose to simulate the available data at the time when the label would arrive. Therefore, our method Forgetting and Simulating (FS) forgets outdated information and simulates the delayed labels to get more realistic utility estimates. We assume to know the label's arrival date a priori and the classifier's training data to be bounded by a sliding window. Our extensive experiments show that FS improves stream-based AL strategies in settings with both, constant and variable verification latency.
Pham, Tuan:Stream-Based Active Learning in Changing Environments under Verification Latency.. In: Tomforde, S. ; Krupitzer, C. (eds.): Organic Computing -- Doctoral Dissertation Colloquium 2021 : kassel university press, 2022, pp. 152–164
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Labeling data often requires human interaction, which is slow and costly depending on the required expertise. Stream-based active learning reduces the cost of labeling for data stream mining by only querying the labels for instances that improve the classifier the most. However, state-of-the-art stream-based active learning strategies assume that verification latency, i.e., the time between a query and the availability of the queried label, is negligible. In reality, this is usually not the case as the experts who provide such labels are not available all the time, and the labeling process itself requires time. This article investigates the impact of verification latency within a stream-based active learning scenario for changing data streams. We focus on two different types of changes that occur over time, i.e., changes in the number of features and changes in the distribution of instances and/or labels. In particular, we identify challenges that occur due to verification latency and propose ideas to overcome these problems within a stream-based active learning strategy.
Klumbytė, Goda ; Draude, Claude:New Materialist Informatics.. In: Braidotti, R. ; Jones, E. ; Klumbytė, G. (eds.): More Posthuman Glossary : Bloomsbury Publishing, 2022, pp. 85–87
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Herde, Marek ; Huseljic, Denis ; Mitrovic, Jelena ; Granitzer, Michael ; Sick, Bernhard:A Concept for Automated Polarized Web Content Annotation based on Multimodal Active Learning.. In: Workshop on Interactive Adaptive Learning (IAL), ECML PKDD, 2022, pp. 1–6
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Active learning (AL) techniques hardly cope with complex annotations tasks, where, for example, annotations might express relationships across data modalities. As a use case, we consider the task of automatically detecting and reporting multimodal, polarized web content (PWC). Samples of this content type emerge dynamically, covering a broad spectrum of topics. Thus, training machine learning systems for detecting PWC is challenging, particularly if it needs to be done with minimum annotation cost. In this article, we propose the concept of multimodal AL for complex annotations in the context of PWC detection and formulate the resulting challenges as questions for future research.
Pittroff, Fabian:Verteilte Erreichbarkeit. Postdigitale Personalisierung durch Selfies als Gestaltungsaufgabe.. In: Friedewald ; Kreutzer ; Hansen (eds.): DuD-Fachbeiträge. Wiesbaden : Springer, 2022
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Löber, Lena:KI-Lösungen gegen digitale Desinformation: Rechtspflichten und -befugnisse der Anbieter von Social Networks.. In: Friedewald, M. ; Roßnagel, A. ; Heesen, J. ; Krämer, N. ; Lamla, J. (eds.): Künstliche Intelligenz, Demokratie und Privatheit. Baden-Baden : Nomos, 2022, pp. 289–316
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Löber, Lena: Der Forschungsdatenzugang nach dem neuen Art. 40 Digital Services Act. In: ZD-Aktuell (2022), p. 01420
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Dickhaut, Ernestine ; Li, Mahei Manhai ; Janson, Andreas ; Leimeister, Jan Marco: The Role of Design Patterns in the Development and Legal Assessment of Lawful Technologies. In: Electronic Markets (Electron Markets) vol. 32 (2022), Nr. 4, pp. 2311–2331
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Novel technologies such as smart personal assistants integrate digital services into everyday life. These services use personal data to offer personalized services. While they are subject to special data protection regulations at the time of development, there are few guidelines describing the transition from legal requirements to implementation. To reduce risks, services depend on external legal assessments. With developers and legal experts often missing either legal or technical knowledge, the challenge lies in bridging this gap. We observe that design patterns support both developers and legal experts, and we present an approach in which design patterns are leveraged to provide twofold value for both developers and legal experts when dealing with novel technologies. We conducted a revelatory case study for smart personal assistants and scaffolded the case interpretation through cognitive fit theory. On the basis of the findings, we develop a theoretical model to explain and predict the twofold value of design patterns to develop and assess lawful technologies.
Reinhard, Philipp ; Li, Mahei Manhai ; Leimeister, Jan Marco:Towards an Employee-Centered Design for Human-AI Collaboration: How Work Design Theory Informs the Design of AI Systems.. In: Pre-ICIS Workshop on the Changing Nature of Work (SIG 11th CNoW). Copenhagen, Denmark, 2022
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IT support is under growing pressure to ensure efficient, flexible, and scalable use of digital technologies (Kumbakara, 2008). As a result, technical support staff is affected by monotonous work and work overload (Schmidt et al., 2022). Our research aims to augment the precarious workplace of support agents with artificial intelligence (AI). To incorporate an employee-centered perspective a priori and ensure positive impacts, we propose a framework for combining work design theory (e.g. Demerouti et al., 2001) and design science theory (Peffers et al., 2007, Niehaves & Ortbach 2016). The advances in AI promise to leverage large potential in optimizing and enhancing service processes and workplaces (Huang & Rust, 2018, de Keyser, 2019). Introducing AI into service processes, imply effects on work characteristics (Larivière et al., 2017). By combining human and artificial intelligence we propose hybrid intelligence (Dellermann et al., 2019) as a suitable solution for mitigating the persistent issues of support workers and the possible negative impacts of AI. To a great extent, IS research emphasizes the implied impacts of AI use in workplaces (Verma & Singh 2022, Wang et al., 2020). As such, work design models are widely used to empirically evaluate the impacts of AI design (Sturm & Peters, 2020), but are rarely utilized to substantiate the design of AI-augmented work systems. Only Poser et al. (2022) and Zschech et al. (2021) recently applied such models. The goal of this paper is to overcome the lack of work design in design science research (DSR) for AI-based systems and to steer the development into desired socio-technological configurations. The here presented work is expected to answer : How can work design theory inform the design of AI-augmented workplaces? [RQ1] How should a hybrid intelligence system be designed to augment IT support agents’ workplaces by incorporating work design theory? [RQ2] To systematically design the integration of AI, we make use of the DSR paradigm (Peffers et al., 2007). We first interview support agents and utilize the organizing move theory of Pentland (1992) and the technical support work theory of Das (2003) to ensure relevance. Based on a review of the IS literature on work design theories, we then derive a preliminary theoretical framework (Paul & Benito, 2018) [RQ1]. The framework represents a kernel theory for the development of meta design requirements. Contributing to the second research question, we design and subsequently evaluate the augmentation based on work-related outcomes [RQ2].
Horn, Viktoria ; Engert, Simon ; Draude, Claude:Rethinking business models as sociotechnical intersections in data-economy that should be designed participatively.. In: Marky, K. ; Grünefeld, U. ; Kosch, T. (eds.): Mensch und Computer 2022 - Workshopband. Bonn : Gesellschaft für Informatik e.V., 2022
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Hornung, G.: Künstliche Intelligenz zur Auswertung von Social Media Massendaten. Möglichkeiten und rechtliche Grenzen des Einsatzes KI-basierter Analysetools durch Sicherheitsbehörden. In: Archiv des öffentlichen Rechts (2022), Nr. 147, pp. 1–69
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Hornung, G.:Trainingsdaten und die Rechte von betroffenen Personen – in der DSGVO und darüber hinaus?. In: Künstliche Intelligenz. Wie gelingt eine vertrauenswürdige Verwendung in Deutschland und Europa?. Tübingen : Mohr Siebeck, 2022, pp. 91–120
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Kordts, Robert ; Leimeister, Jan Marco ; Zenker, Christina:Faktoren für gelungene Studienprogramm-Reformen.. In: Berendt, B. ; Fleischmann, A. ; Schaper, N. ; Szczyrba, B. ; Wiemer, M. ; Wildt, J. (eds.): Neues Handbuch Hochschullehre (NHHL). vol. 104 : DUZ Verlags- und Medienhaus GmbH, 2022
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Wie sehen gelungene Studienprogramm-Reformen an einer spezifischen Hochschule aus? Welche Faktoren sind dabei wichtig und wie kann üblichen Herausforderungen erfolgreich begegnet werden? In diesem Beitrag stellen wir die Ergebnisse der Evaluation einer Studienprogramm-Reform an der Universität St. Gallen (HSG) dar. Ausgehend vom aktuellen Stand der wissenschaftlichen Diskussion um Studienprogramm-Reformen, werden Faktoren einer gelungenen Reform aus zwei Befragungen abgeleitet, die diese Reform begleiteten.
Hornung, G.:Neukommentierung von § 35a.. In: Schoch, F. ; Schneider, J.-P. (eds.): Verwaltungsrecht. VwVfG, Loseblatt (40 Seiten). vol. 3. München : C.H.Beck, 2022
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Kottke, Daniel ; Sandrock, Christoph ; Krempl, Georg ; Sick, Bernhard:A Stopping Criterion for Transductive Active Learning.. In: European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases (ECMLPKDD) : Springer, 2022, pp. 468–484
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In transductive active learning, the goal is to determine the correct labels for an unlabeled, known dataset. Therefore, we can either ask an oracle to provide the right label at some cost or use the prediction of a classifier which we train on the labels acquired so far. In contrast, the commonly used (inductive) active learning aims to select instances for labeling out of the unlabeled set to create a generalized classifier, which will be deployed on unknown data. This article formally defines the transductive setting and shows that it requires new solutions. Additionally, we formalize the theoretically cost-optimal stopping point for the transductive scenario. Building upon the probabilistic active learning framework, we propose a new transductive selection strategy that includes a stopping criterion and show its superiority.
Dickhaut, Ernestine ; Janson, Andreas ; Leimeister, Jan Marco:It Takes Two to Tango: Design Thinking and Design Patterns for Better System Development.. In: Hehn, J. ; Mendez, D. ; Brenner, W. ; Broy, M. (eds.): Design Thinking for Software Engineering, Progress in IS. Cham, Switzerland : Springer, 2022 — ISBN 978-3-030-90593-4, pp. 201–211
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Design Thinking has become a well-established approach to solving wicked problems through creative and conceptual solutions. Thus, Design Thinking approaches usually end with finding novel solutions but do not offer support in the practical implementation of these solutions. To bridge the gap between finding creative solutions and implementing them into suitable end products, we see Design Patterns as a useful approach to combine the advantages of both sides—the human-centered Design Thinking approach and the practical implementation in system development. Design Patterns offer proven solutions to recurring problems and thus provide design knowledge to solve complex design problems. In this contribution, we demonstrate how Design Patterns act as a complement to Design Thinking by using the example of designing a lawful smart personal learning assistant. We use Design Thinking to extract the design solution of the lawful learning assistant and develop it with the help of Design Patterns. We demonstrate the use of Design Patterns by using the deletion routine Design Pattern as an example of how a Design Pattern can be used for lawful design in addition to their known fields of application in system development. The evaluation results show that the combination of Design Thinking and Design Patterns lead to an approach that not only identifies novel, complex solutions but also supports their practical implementation.
Hornung, G.:§§ 33a, 67-68c, 75b-75c, 139e, 284-333, 371-399.. In: Hänlein, A. ; Schuler, R. (eds.): Sozialgesetzbuch V: Gesetzliche Krankenversicherung. Lehr- und Praxiskommentar. 6. ed.. Baden-Baden : Nomos Verlagsgesellschaft, 2022, p. 345 Seiten
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Knof, Merlind ; Heinisch, Judith S. ; Kirchhoff, Jérôme ; Rawal, Niyati ; David, Klaus ; Von Stryk, Oskar ; Stock-Homburg, Ruth Maria:Implications from Responsible Human-Robot Interaction with Anthropomorphic Service Robots for Design Science.. In: Proceedings of the 55th Hawaii International Conference on System Sciences, 2022 — ISBN 978-0-9981331-5-7, pp. 5827–5836
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Accelerated by the COVID-19 pandemic, anthropomorphic service robots are continuously penetrating various domains of our daily lives. With this development, the urge for an interdisciplinary approach to responsibly design human-robot interaction (HRI), with particular attention to human dignity, privacy, compliance, and transparency, increases. This paper contributes to design science, in developing a new artifact, i.e., an interdisciplinary framework for designing responsible HRI with anthropomorphic service robots, which covers the three design science research cycles. Furthermore, we propose a multi-method approach by applying this interdisciplinary framework. Thereby, our finding offer implications for designing HRI in a responsible manner.
Dickhaut, Ernestine ; Janson, Andreas ; Leimeister, Jan Marco:Analyzing Design Knowledge Representation in Design Science Research and Deriving Recommendations to Support Design Knowledge Codification.. In: Drechsler, A. ; Gerber, A. ; Hevner, A. (eds.): The Transdisciplinary Reach of Design Science Research. 17th International Conference on Design Science Research in Information Systems and Technology (DESRIST), Lecture Notes in Computer Science. vol. 13229. St. Petersburg, Florida, USA, 2022 — ISBN 978-3-031-06515-6, pp. 417–428
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The goal of design science research is the generation of novel artifacts. Thereby DSR projects generate valuable design knowledge, thus, underscoring the importance to codify of design knowledge for achieving scientific progress. The research community observes that DSR projects generate a large amount of design knowledge, but the developed knowledge often ends as a single success story. To counter this situation, we analyze the variety of design knowledge representation forms that have been published in the AIS Senior Scholars’ Basket in design science research papers. Based on our systematic literature review, we identify prevalent ways of design knowledge representations. We provide as a central contribution how to effectively communicate design knowledge through the derivation of recommendations that provides practical guidance to support researchers and practitioners in making design knowledge contributions reusable and applicable.
Dickhaut, Ernestine ; Janson, Andreas ; Leimeister, Jan Marco:Conceptualizing Design Knowledge in IS Research – A Review and Taxonomy of Design Knowledge Properties.. In: Hawaii International Conference on System Sciences (HICSS). Hawaii, USA, 2022 — ISBN 978-0-9981331-5-7, pp. 5778–5787
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Design science projects are of great interest in information systems (IS) research. Typically, design-oriented projects generate valuable design knowledge through the design and possible instantiation of artifacts. Although designing novel artifacts and accumulating design knowledge is common practice in IS, there is still limited shared knowledge about the distinctive characteristics of design knowledge to facilitate its accumulation. To address this issue, we develop a design knowledge taxonomy and contribute to a deeper understanding of design knowledge properties. The taxonomy is grounded on a systematic literature review, followed by a combination of empirical-to-conceptual and conceptual-to-empirical iterations. We evaluate the taxonomy by interviewing six domain experts and demonstrate its practical application and utility. Thus, the taxonomy consists of key dimensions and characteristics of design knowledge and contributes to a better scientific understanding of its characteristics. Practitioners can use the taxonomy as an instrument to further understand, design, and accumulate design knowledge.
Dickhaut, Ernestine ; Thies, Laura Friederike ; Janson, Andreas ; Leimeister, Jan Marco ; Söllner, Matthias:Entwurfsmuster für die interdisziplinäre Gestaltung rechtsverträglicher Systeme.. In: Friedewald, M. ; Kreutzer, M. ; Hansen, M. (eds.): Selbstbestimmung, Privatheit und Datenschutz, DuD-Fachbeiträge. Wiesbaden : Springer Vieweg, 2022 — ISBN 978-3-658-33306-5, pp. 469–487
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Durch die Digitalisierung werden immer mehr Technologien entwickelt. Dabei gewinnt die soziotechnische Systementwicklung zunehmend an Bedeutung, in deren Rahmen nicht nur das technische System isoliert betrachtet wird, sondern auch der Nutzer und sein Umfeld. Insbesondere bei der Entwicklung rechtsverträglicher Systeme stehen Entwickler häufig aufgrund fehlenden rechtlichen Fachwissens vor großen Herausforderungen. Dies gilt insbesondere dann, wenn es um intelligente, selbstlernende Systeme geht. Diese Systeme sammeln, um die Qualität ihrer Dienste zu optimieren und Nutzerbedürfnissen zu entsprechen mithilfe leistungsfähiger Technologien große Mengen an personenbezogenen Daten, was Risiken für die informationelle Selbstbestimmung der Nutzer mit sich bringt. Um diesen Risiken entgegenzuwirken nutzen wir Anforderungs- und Entwurfsmuster. Ziel des Beitrags ist daher mittels eines multi-methodischen Ansatzes aufzuzeigen, welchen Beitrag interdisziplinäre Anforderungs- und Entwurfsmuster für die Entwicklung rechtsverträglicher und qualitativ hochwertiger KI-basierter Systeme leisten können. Um die Wirksamkeit der Muster zu untersuchen wurde mithilfe der Muster ein Lernassistent entwickelt und durch die Methode der Simulationsstudie evaluiert.
Pristl, Ann-Catrin Cara ; Billert, Matthias Simon:CITIZEN PARTICIPATION IN INCREASINGLY DIGITALIZED GOVERNMENTAL ENVIRONMENTS – A SYSTEMATIC LITERATURE REVIEW.. In: European Conference on Information Systems (ECIS 2022). Timișoara, Romania, 2022, pp. 1–19
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Citizen participation in increasingly digitalized governmental environments can introduce fruitful capabilities to encourage citizens to engage in municipal affairs and through this take actively part in fostering smart cities’ effectiveness. However, the practical exploitation of recent knowledge is still not sufficiently operationalized, whilst research in this field yields various approaches focusing on diverse emphases. Therefore, the necessity of systematically collecting and afterwards analysing the existing literature towards this topic is obvious. This paper depicts a proceeding to systematically review the available literature towards the relevant research units on citizen participation. Overall, 48 topic-based papers were identified out of leading journals and conference papers about information systems. The main findings of the relevant papers were assessed to a proposed analytical framework consisting of increasing participation stages and two distinct focus groups namely government and citizens. Accordingly, the covered recent focus areas of research are identified to reveal where state-of-the-art research falls short. Consequently, the imperative of emphasising investigation regarding concepts for ICT-enabled services focusing the empowerment of citizens arises as being our contribution for guiding future research, whilst governments can practically benefit from the composed framework by using it for classifying, planning and implementing proposed participation activities.
Diesterhöft, Till Ole ; Benner, Dennis ; Brauer, Benjamin:Introducing Conversational Explanations as a Novel Response Strategy to Data Breach Incidents in Digital Commerce.. In: pre-ICIS Workshop on Information Security and Privacy (WISP). Copenhagen, Denmark, 2022
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In order to individualize and personalize digital services, an increasing number of e-commerce providers are exploiting abundant amounts of customer information. Alongside these positive effects, an inherent risk of compromise of customer information arises, resulting in data breaches. Compelled by regulations, companies are obliged to notify their customers. Previous literature indicates that different data breach response strategies can mitigate the negative effects of these security incidents. Drawing on data breach and conversational agent (CA) research, we theorize that the manner in which a data breach is communicated is equally relevant. We test our developed hypotheses in an online experiment (n=89). Our results show that explaining a data breach increases customer satisfaction. Simultaneously, we reveal that CAs lend themselves as a tool to positively influence this degree of explanation. Our work provides novel insights into the centrality of explanation in a data breach response and their positive correlation with CAs.
DIN ; DKE ; Dickhaut, Ernestine ; Li, Mahei Manhai ; Peters, Christoph ; many other authors [see chapter 11] ; Wahlster, W. ; Winterhalter, C. (eds.):German Standardization Roadmap on Artificial Intelligence. 2. ed., 2022
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On behalf of the German Federal Ministry of Economic Affairs and Climate Action, DIN and DKE started work on the second edition of the German Standardization Roadmap Artificial Intelligence in January 2022. With the broad participation and involvement of more than 570 experts from industry, science, the public sector and civil society, the strategic Roadmap for AI standardization was thus further developed. This work was coordinated and accompanied by a high-level coordination group for AI standardization and conformity The standardization roadmap implements a measure of the German government’s AI Strategy and thus makes a significant contribution to “AI – Made in Germany”. Standardization is part of the AI Strategy and is a strategic instrument for strengthening the innovation and competitiveness of the German and European economies. Not least for this reason, standardization plays a special role in the planned European legal framework for AI, the Artificial Intelligence Act. This Standardization Roadmap AI identifies the requirements in standardization, formulates concrete recommendations and thus creates the basis for initiating standardization work at national level, and especially at European and international level, at an early stage. In doing so, the Roadmap makes a significant contribution to the European Commission’s Artificial Intelligence Act, supporting its implementation. The Standardization Roadmap AI focuses on nine key topics, which are addressed in Chapter 4: → The Roadmap begins with the basic topics, such as terminologies and definitions, classifications and ethical issues. They are the basis for AI discussions and are thus the central core of the Roadmap. → The security/safety of AI systems plays a crucial role in widespread use of AI solutions. Only a more in-depth consideration of requirements for operational safety and information security, for example, can enable the comprehensive use of AI systems in business and society. → Another key topic, and the basis for the broad market success of AI, is testing and certification. This requires reliable quality criteria and reproducible test methods that can be used to verify the properties of AI systems. They are a key prerequisite for assessing the quality of AI-based applications and contribute significantly to explainability and traceability – two factors that build trust and acceptance. → Another challenge in the use of AI, especially for small and medium-sized enterprises, is the integration of AI technologies in organizations. The focus here is on sociotechnical aspects such as human-technology interaction, humane work design, and requirements for business structures and processes, which are all examined in the Roadmap. → The fields of application of AI are extremely diverse. AI technologies are used in almost all business and application areas and offer great potential. To cover a broad spectrum of applications, the Roadmap considers industry-specific challenges for the following five sectors in particular, in addition to the cross-cutting issues mentioned above: Industrial Automation, Mobility, Medicine, Financial Services and Energy / Environment. The present Roadmap outlines the work and discussion results for all nine key topics and provides a comprehensive overview of the status quo, requirements, and needs for action.
Kress, Viktor ; Jeske, Fabian ; Zernetsch, Stefan ; Doll, Konrad ; Sick, Bernhard: Pose and Semantic Map Based Probabilistic Forecast of Vulnerable Road Users Trajectories. In: IEEE Transactions on Intelligent Vehicles vol. 8, IEEE (2022), Nr. 3, pp. 2592–2603
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In this article, an approach for probabilistic trajectory forecasting of vulnerable road users (VRUs) is presented, taking into consideration past movements and the surrounding environment. Past movements are represented by 3D poses reflecting the posture and movements of individual body parts. The surrounding environment is modeled in the form of semantic maps showing, e.g., the course of streets, sidewalks, and the occurrence of obstacles. Forecasts are generated in grids discretizing the space and in the form of arbitrary discrete probability distributions. The distributions are evaluated for their reliability, sharpness, and positional accuracy. We compare our method with two approaches providing forecasts in the form of continuous probability distributions, and we discuss their respective advantages and disadvantages. We thereby investigate the impact of poses and semantic maps. Using a technique we refer to as spatial label smoothing, our approach is able to achieve reliable forecasts. Overall, the 3D poses have a positive impact on the forecasts. The semantic maps facilitate the adaptation of the probability distributions to the individual situation and prevent forecasts of trajectories leading through obstacles. Our method is evaluated on a dataset recorded in inner-city traffic using a research vehicle. The dataset has been made publicly available.
Dingel, Kristina:Actively Controlling and Redesigning Experiments using the Application Case of Free-Electron Laser Pulse Characterization.. In: Tomforde, S. ; Krupitzer, C. (eds.): Organic Computing -- Doctoral Dissertation Colloquium 2021 : kassel university press, 2022, pp. 86–98
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Experiments are the elective tool for developing new technologies, testing hypotheses, and designing new materials in many scientific fields. Thereby, it is state-of-the-art to create experiments traditionally, starting with a hypothesis leading to the product or relevant data after several experiment cycles. There are some techniques such as automation, parallelization, or inverse design to accelerate experiments. Particularly interesting, however, is the approach to integrate immediate data analysis into the experiment cycle. By analyzing experiment output data on-site using, e.g., neural networks, one can make inferences regarding the experiment's current settings at run-time and furthermore improve them. In the following research project, the goal is to develop and incorporate a data analysis stage into an experimental setup, which can be actively adapted and designed on-site. To demonstrate the developed method, the experimental design of a self-amplification of spontaneous emission pulse characterization experiment at a free-electron laser will be used to show to what extent the experiment can be adapted and optimized.
Dingel, Kristina ; Otto, Thorsten ; Marder, Lutz ; Funke, Lars ; Held, Arne ; Savio, Sara ; Hans, Andreas ; Hartmann, Gregor ; et al.: Artificial intelligence for online characterization of ultrashort X‑ray free‑electron laser pulses. In: Scientific Reports vol. 12, Nature Publishing Group (2022), Nr. 1, pp. 1–14
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X-ray free-electron lasers (XFELs) as the world’s brightest light sources provide ultrashort X-ray pulses with a duration typically in the order of femtoseconds. Recently, they have approached and entered the attosecond regime, which holds new promises for single-molecule imaging and studying nonlinear and ultrafast phenomena such as localized electron dynamics. The technological evolution of XFELs toward well-controllable light sources for precise metrology of ultrafast processes has been, however, hampered by the diagnostic capabilities for characterizing X-ray pulses at the attosecond frontier. In this regard, the spectroscopic technique of photoelectron angular streaking has successfully proven how to non-destructively retrieve the exact time–energy structure of XFEL pulses on a single-shot basis. By using artificial intelligence techniques, in particular convolutional neural networks, we here show how this technique can be leveraged from its proof-of-principle stage toward routine diagnostics even at high-repetition-rate XFELs, thus enhancing and refining their scientific accessibility in all related disciplines.
Meier, David ; Ramirez, Luis Vera ; Völker, Jens ; Viefhaus, Jens ; Sick, Bernhard ; Hartmann, Gregor: Optimizing a superconducting radio-frequency gun using deep reinforcement learning. In: Physical Review Accelerators and Beams vol. 25, American Physical Society (2022), Nr. 10, p. 104604
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Superconducting photoelectron injectors are promising for generating highly brilliant pulsed electron beams with high repetition rates and low emittances. Experiments such as ultrafast electron diffraction, experiments at the Terahertz scale, and energy recovery linac applications require such properties. However, optimizing the beam properties is challenging due to the high number of possible machine parameter combinations. This article shows the successful automated optimization of beam properties utilizing an already existing simulation model. To reduce the required computation time, we replace the costly simulation with a faster approximation with a neural network. For optimization, we propose a reinforcement learning approach leveraging the simple computation of the derivative of the approximation. We prove that our approach outperforms standard optimization methods for the required function evaluations given a defined minimum accuracy.
Kropf, Jonathan:Kontrollierte Verbindungen. Rezension zu „Die Macht der Plattformen. Politik in Zeiten der Internetgiganten“ von Michael Seemann.. In: Soziopolis - Gesellschaft beobachten : Soziopolis, 2022
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Hornung, G. ; Schindler, S.:Datenschutz: Europäische und nationale Vorgaben.. In: Herrnfeld, H.-H. ; Esser, R. (eds.): Europäische Staatsanwaltschaft. Handbuch.. Baden-Baden : Nomos Verlagsgesellschaft, 2022, pp. 323–344
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Rauch, Lukas ; Huseljic, Denis ; Sick, Bernhard:Enhancing Active Learning with Weak Supervision and Transfer Learning by Leveraging Information and Knowledge Sources.. In: Workshop on Interactive Adaptive Learning (IAL), ECML PKDD, 2022, pp. 27–42
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One of the major limitations of deploying a machine learning model is the availability of labeled training data and the resulting expensive annotation process. Although active learning (AL) methods may reduce the annotation cost by actively selecting the most-useful instances, a costly human annotator usually provides the labels. Therefore, even with AL, we still consider the annotation process to be time-consuming and expensive. Besides human annotators, though, companies often have a vast amount of information and knowledge sources available that can generate low-cost labels (e.g., a black-box model) or improve the learning process (e.g., a pre-trained model). We present a novel approach that enhances AL with weak supervision (WS) and transfer learning (TL) to reduce the annotation cost by leveraging these sources. Specifically, we consider a black-box model like a rule-based system as an error-prone and weakly-supervised annotator that inexpensively provides labels. We estimate its performance with an annotator model to decide whether a human annotation is required. Additionally, we utilize unlabeled internal and external data by transferring knowledge from a pre-trained model to the AL cycle. We sequentially investigate the impact of WS and TL on annotation cost and model performance in an AL cycle through a use case. Our evaluation shows that our approach can reduce annotation cost by 51% while achieving nearly identical model performance compared to a traditional AL approach.
Hornung, G. ; Söllner, M. ; Stroscher, J.-P. ; Zahn, E.-M.: Kollaboration im Datenschutz. Collaboration Engineering als Instrument zur partizipativen und nachhaltigen Gestaltung von Datenschutzprozessen. In: DuD (2022), pp. 384–389
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Herfurth, Constantin:Big Data - Big Accountability. Erkennung von Versicherungsbetrug mit Big Data nach der Datenschutz-Grundverordnung, DuD-Fachbeiträge : Springer Vieweg Wiesbaden, 2022 — ISBN 978-3-658-39286-4
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Löber, Lena: Auf dem Weg zu einem Beschäftigtendatenschutzgesetz für das digitale Zeitalter?. In: ZD-Aktuell (2022), p. 01120
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Kropf, Jonathan ; Lamla, Jörn ; Uhlmann, Markus:Datenintermediäre als Fairness-Akteure in der Datenökonomie.. In: Zu treuen Händen? Verbraucherdatenschutz und digitale Selbstbestimmung : Verbraucherzentrale NRW e.V., 2022. — Vortrag 15 der Reihe: "Zu treuen Händen"
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Lorenz, L.: Anspruch auf Haushaltshilfe – Trägerschaft und Beschaffungsweg als (rechtliche) Fallstricke, Anmerkung zu LSG Hessen, Urteil vom 22. Juni 2021 – L 2 R 360/18. In: reha-recht.de (2022), Nr. Beitrag A7-2022
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Krupitzer, Christian ; Gruhl, Christian ; Sick, Bernhard ; Tomforde, Sven: Proactive hybrid learning and optimisation in self-adaptive systems: The swarm-fleet infrastructure scenario. In: Information and Software Technology vol. 145, Elsevier (2022), p. 106826
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Context: Smart and adaptive Systems, such as self-adaptive and self-organising (SASO) systems, typically consist of a large set of highly autonomous and heterogeneous subsystems that are able to adapt their behaviour to the requirements of ever-changing, dynamic environments. Their successful operation is based on appropriate modelling of the internal and external conditions. Objective: The control problem for establishing a near-to-optimal coordinated behaviour of systems with multiple, potentially conflicting objectives is either approached in a distributed (i.e., fully autonomous by the autonomous subsystems) or in a centralised way (i.e. one instance controlling the optimisation and planning process). In the distributed approach, selfish behaviour and being limited to local knowledge may lead to sub-optimal system behaviour, while the centralised approach ignores the autonomy and the coordination efforts of parts of the system. Method: In this article, we present a concept for a hybrid (i.e., integrating a central optimisation with a distributed decision-making process) system management that combines local reinforcement learning and self-awareness mechanisms of fully autonomous subsystems with external system-wide planning and optimisation of adaptation freedom that steers the behaviour dynamically by issuing plans and guidelines augmented with incentivisation schemes. Results: This work addresses the inherent uncertainty of the dynamic system behaviour, the local autonomous and context-aware learning of subsystems, and proactive control based on adaptiveness. We provide the ‘swarm-fleet infrastructure’—a self-organised taxi service established by autonomous, privately-owned cars—as a testbed for structured comparison of systems. Conclusion: The ‘swarm-fleet infrastructure’ supports the advantages of a proactive hybrid self-adaptive and self-organising system operation. Further, we provide a system model to combine the system-wide optimisation while ensuring local decision-making through reinforcement learning for individualised configurations.
Müller, J.: AUDITOR: Zwischenstand im Forschungsprojekt „European Cloud Service Data Protection Certification“. In: ZD-Aktuell (2022), Nr. 01239
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Gochmann, Viktoria ; Ohly, Sandra ; Kotte, Silja: Diary Studies, a Double‐Edged Sword? An Experimental Exploration of Possible Distortions Due to Daily Reporting of Social Interactions. In: Journal of Organizational Behavior (2022)
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Ochs, Carsten: Be-handeln und De-aktivieren : ein empirischer Beitrag zur Erweiterung soziomaterieller agency-Konzeptionen am Fall einer ‚Fitness-App‘. In: BEHEMOTH A Journal on Civilisation vol. 15 (2022), Nr. 1, pp. 74–90
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Actor-Network-Theory (ANT) in many accounts is regarded as a forerunner of approaches summarized as ‘new materialism’. Similar to ANT New Materialism tends to conceive of material entities as having agency, i.e. as active contributors to processes of becoming. At the same time, however, criticisms have been raised against ANT as well as against New Materialism as to their undifferentiated conceptions of agency. Against this background, in this article I will contribute to the conceptual differentiation of agency by drawing on the case of a ‘fitness app’. I will do so by first providing a thick description of the app’s workings and the way it is syntagmatically networked in the technoeconomic frame of the data economy. Second, I will introduce Rammert’s and Schulz-Schaeffer’s gradual notion of agency to specify different types of agency performed by the app, including negative ones. Third, I will draw conceptual conclusions following from my analysis.
Huhnstock, Rico ; Reginka, Meike ; Sonntag, Claudius ; Merkel, Maximilian ; Dingel, Kristina ; Sick, Bernhard ; Vogel, Michael ; Ehresmann, Arno: Three-dimensional close-to-substrate trajectories of magnetic microparticles in dynamically changing magnetic field landscapes. In: Scientific Reports vol. 12, Springer Nature (2022), Nr. 1, pp. 1–10
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The transport of magnetic particles (MPs) by dynamic magnetic field landscapes (MFLs) using magnetically patterned substrates is promising for the development of Lab-on-a-chip (LOC) systems. The inherent close-to-substrate MP motion is sensitive to changing particle–substrate interactions. Thus, the detection of a modified particle–substrate separation distance caused by surface binding of an analyte is expected to be a promising probe in analytics and diagnostics. Here, we present an essential prerequisite for such an application, namely the label-free quantitative experimental determination of the three-dimensional trajectories of superparamagnetic particles (SPPs) transported by a dynamically changing MFL. The evaluation of defocused SPP images from optical bright-field microscopy revealed a “hopping”-like motion of the magnetic particles, previously predicted by theory, additionally allowing a quantification of maximum jump heights. As our findings pave the way towards precise determination of particle–substrate separations, they bear deep implications for future LOC detection schemes using only optical microscopy.
Gruhl, Christian ; Tomforde, Sven ; Sick, Bernhard:Self-Aware Microsystems.. In: Workshop on Self-Improving System Integration (SISSY), ACSOS : IEEE, 2022, pp. 126–127
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Besides infrastructure-based solutions, small-scale microsystems are increasingly connected and interoperating with others in changing environments. Following the same motivation as for self-adaptive systems, this demands novel attempts to counter complexity and provide autonomous decision freedom that paves the path towards resilient and flexible behaviour. In this article, we outline a vision for research on self-aware microsystems (SAM) that aims at providing technical solutions that are especially relevant for initiatives such as self-improving system integration.
Guo, Tao ; Huang, Zhixin ; Cheng, Jingyuan: LwTool: A data processing toolkit for building a real-time pressure mapping smart textile software system. In: Pervasive and Mobile Computing vol. 80, Elsevier (2022), p. 101540
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Pressure mapping smart textile is a new type of sensing modality that transforms the pressure distribution over surfaces into digital ”image” and ”video”, that has rich application scenarios in Human Activity Recognition (HAR), because all human activities are linked with force change over certain surfaces. To speed up its application exploration, we propose a toolkit named LwTool for the data processing, including: (a) a feature library, including 1830 ready-to-use temporal and spatial features, (b) a hierarchical feature selection framework that automatically picks out the best features for a new application from the feature library. As real-time processing capability is important for instant user feedback, we emphasize not only on good recognition result but also on reducing time cost when selecting features. Our library and algorithms are validated on Smart-Toy and Smart-Bedsheet applications, an 89.7% accuracy for Smart-Toy and an 83.8% accuracy for Smart-Bedsheet can be achieved (10-fold cross-validation) using our feature library. Adopting the feature selection algorithm, the processing speed is increased by more than 3 times while maintaining high accuracy for both two applications. We believe our method could be a general and powerful toolkit in building real-time recognition software systems for pressure mapping smart textile.
Hubert, T. ; Schaller, T.:Bußgeldadressaten nach dem BSIG unter besonderer Berücksichtigung des Entwurfs der zweiten Richtlinie zur Netz- und Informationssicherheit.. In: Heinze, C. (ed.): Daten, Plattformen und KI als Dreiklang unserer Zeit. Tagungsband DSRI-Herbstakademie 2022. Edewecht, 2022, pp. 825–843
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Ochs, Carsten ; Sierra Barra, Sebastian:Datenbasierte Demokratie oder datafizierte Prediktivität? Ein analytisches Plädoyer für die Rettung der evolutionären Kontingenz.. In: Beinsteiner, A. ; Grünberger, N. ; Hug, T. ; Kapelari, S. (eds.): Ökologische Krisen und Ökologien der Kritik, Medien, Wissen, Bildung : innsbruck university press, 2022 — ISBN 978-3-99106-086-4, pp. 55–66
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Der vorliegende Beitrag stellt gleichzeitig eine Ehrbezeugung und eine Problemanalyse dar: Zum einen wollen wir damit unseren 2021 viel zu früh aus dem Leben geschiedenen Promotionsbetreuer und Kollegen Manfred Faßler ehren, zum anderen mithilfe der Denkwerkzeuge, an denen wir gemeinsam mit ihm bis zuletzt gearbeitet haben, einen Problemraum ausweisen, in dem zukünftige, soziodigital verfasste Demokratien sich entwickeln und bewähren müssen. Wir tun dies, indem wir zunächst einige kulturevolutionäre Entwicklungen der jüngeren Vergangenheit skizzieren, die das Demokratieformat in seiner hergebrachten Form unter Druck setzen. Im nächsten Schritt werden wir einige Implikationen und Problemlagen herausarbeiten, die in der Folge zutage treten. Im resümierenden Schlussteil werden wir zusammenfassen und die gewonnenen Erkenntnisse diskutieren, um so einen Problemkatalog vorzulegen, dem sich sowohl die Forschungsbemühungen als auch die „ontological politics“ (A. Mol) der Zukunft tunlichst widmen sollten.
Johannes, Paul C: TTDSG – ein Überblick mit Keksbeilage. In: LRZ (2022)
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Janson, Andreas ; Dickhaut, Ernestine ; Söllner, Matthias:Designing for Cultural Values: Towards a Theory-motivated Method for Culture-sensitive Adaptation of Information Systems.. In: Proceedings of the 55th Hawaii International Conference on System Sciences : Hawaii International Conference on System Sciences, 2022
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To ensure that an intended target group accepts and uses an information system (IS) is a major challenge for service systems engineering and a key interest in IS research. On the one hand, individuals’ cultural values affect their willingness to use an IS; on the other hand, information technology (IT) is neither value-neutral and, thus, also affects IT acceptance and usage. Therefore, the adaptation of IS should consider both sources of value. Thus, in this paper, we present the theory-driven design of a method for culturesensitive IS adaptation that draws on IT-culture conflict theory. Our two-fold evaluation approach results show that the method enables to create feasible results for developing culture-sensitive design solutions for IS. As a theoretical contribution, we contribute to the exploration of culture in IS development; as a practical contribution, we provide guidance in how to adapt IS for specific target groups.
Johannes, Paul C.:Einwilligung im Polizeidatenschutzrecht.
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Huang, Zhixin:Active Learning in Multivariate Time Series Anomaly Detection.. In: Tomforde, S. ; Krupitzer, C. (eds.): Organic Computing -- Doctoral Dissertation Colloquium 2021 : kassel university press, 2022, pp. 113–124
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Multivariate time series anomaly detection is an important research field of industry, science, and finances. In practical applications, unlabeled data is abundant, and labeled data is rare. Experts’ experience plays a key role in data labeling, while experts often have limited time, are expensive, and are concerned primarily with finding the potential anomalies. Active learning, which has been widely used to select the most informative data for labeling through experts, can improve training with less labeling effort. However, most active learning algorithms have not been evaluated on datasets with imbalanced class frequencies, such as anomaly detection. Although some semi-supervised and active learning methods were proposed to handle univariate time series data, not much work has been done on multivariate time series classification. Therefore, this article identifies critical challenges and proposes potential solutions for active learning in multivariate time series anomaly detection. We combine all possible solutions into a framework that conforms to the scope of the observation/control system in organic computing.
Friedewald, M. ; Roßnagel, A. ; Heesen, J. ; Krämer, N. ; Lamla, J. (eds.):Künstliche Intelligenz, Demokratie und Privatheit, Privatheit und Selbstbestimmung in der digitalen Welt | Privacy and Self-Determination in the Digital World. Baden-Baden : Nomos, 2022 — ISBN 978-3-8487-7327-5
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Li, Mahei Manhai ; Peters, Christoph ; Poser, Mathis ; Eilers, Karen ; Elshan, Edona:ICT-enabled job crafting: How Business Unit Developers use Low-code Development Platforms to craft jobs.. In: International Conference on Information Systems (ICIS). Copenhagen, Denmark, 2022
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Recently, businesses are introducing low-code development platforms (LCDP) that enable employees with little to no development expertise to develop their own systems to improve their work. These so-called business unit developers (BUDs) possess necessary domain knowledge to understand how to use LCDPs to create useful (self-) services. Using job resource demand theory and the job crafting model, we conceptualize that BUDs use of LCDPs can be framed using the theoretical lens of job crafting. Job crafting stems from vocational psychology and provides well-researched positive consequences, such as wellbeing and meaningfulness. Thus, our research objective is to understand how BUDs can use LCDPs to job craft to gain access to positive job crafting consequences. We interviewed 17 experts across three organizations that employ an LDCP for chatbots. Our results suggest that job crafting is a suitable framework for understanding the effects of LCDP use.
Hanika, Tom ; Hirth, Johannes: Knowledge cores in large formal contexts. In: Annals of Mathematics and Artificial Intelligence vol. 90 (2022), Nr. 6, pp. 537–567
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Knowledge computation tasks, such as computing a base of valid implications, are often infeasible for large data sets. This is in particular true when deriving canonical bases in formal concept analysis (FCA). Therefore, it is necessary to find techniques that on the one hand reduce the data set size, but on the other hand preserve enough structure to extract useful knowledge. Many successful methods are based on random processes to reduce the size of the investigated data set. This, however, makes them hardly interpretable with respect to the discovered knowledge. Other approaches restrict themselves to highly supported subsets and omit rare and (maybe) interesting patterns. An essentially different approach is used in network science, called k-cores. These cores are able to reflect rare patterns, as long as they are well connected within the data set. In this work, we study k-cores in the realm of FCA by exploiting the natural correspondence of bi-partite graphs and formal contexts. This structurally motivated approach leads to a comprehensible extraction of knowledge cores from large formal contexts.
Hanika, Tom ; Hirth, Johannes: On the lattice of conceptual measurements. In: Information Sciences vol. 613 (2022), pp. 453–468
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We present a novel approach for data set scaling based on scale-measures from formal concept analysis, i.e., continuous maps between closure systems, for which we derive a canonical representation. Moreover, we prove that scale-measures can be lattice ordered using the canonical representation. This enables exploring the set of scale-measures by the use of meet and join operations. Furthermore we show that the lattice of scale-measures is isomorphic to the lattice of sub-closure systems that arises from the original data. Finally, we provide another representation of scale-measures using propositional logic in terms of data set features. Our theoretical findings are discussed by means of examples.
Johannes, Paul C.: Europäisches Datenrecht – ein Spickzettel. In: ZD-Aktuell (2022), p. 01166
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Ochs, Carsten:Datenbasierte Sichtbarkeit: Gesellschaftsstrukturelle Bedingungen zeitgenössischer Technikgestaltung.. In: Selbstbestimmung, Privatheit und Datenschutz : Springer, 2022, pp. 35–55
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Dass wertorientierte Technikgestaltung kaum umhinkommt, die gesellschaftsstrukturellen Bedingungen mit zu reflektieren, unter denen sie agiert, ist bekannt. Der Vortrag überträgt diese Einsicht auf den Bereich der Privatheit, indem er die strukturhistorischen Konstellationen rekonstruiert, aus denen sich versch. Formen der informationellen Privatheit in unterschiedlichen Vergesellschaftungsphasen der Moderne jeweils herausgeschält haben. Bei den so identifizierten Privatheitsformen handelt es sich um a) Reputation Management; b) Rückzug; sowie c) individuelle Informationskontrolle. Basierend auf einer solchen Genealogie informationeller Privatheitspraktiken werden in einem weiteren Schritt die strukturellen Treiber zeitgenössischer Privatheit herausgearbeitet, deren Form solchermaßen als d) Unschärfegarantie erkennbar wird. Abschließend werden Konsequenzen diskutiert, die sich aus den somit herausgearbeiteten gesellschaftsstrukturellen Bedingungen zeitgenössischer Technikgestaltung ergeben.
Nebel, Maxi: Klarnamenpflicht nach DS-GVO und TTDSG. In: ZD-Aktuell (2022), p. 01077
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Johannes, Paul C.: Datenschutz und Datensicherheit in China Überblick zu PIPL und DSL. In: Zeitschrift für Datenschutz (2022), pp. 90–98
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Geihs, Kurt ; Jakob, Stefan ; Opfer, Stephan ; Alhamwy, Yasin:Commonsense Knowledge for Human-Robot Collaboration in Hybrid Search and Rescue Teams.. In: 2nd International Workshop on Human-Robot Interaction: New Trends in Service and Industry (HRI-SI2022). Naples/Italy, 2022
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Geminn, Christian: Selbstbestimmung, Künstliche Intelligenz und Demokratie. In: Datenschutz und Datensicherheit (2022), pp. 327–328
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Geminn, Christian: Zur Institutionalisierung einer Überwachungsgesamtrechnung. In: Die Öffentliche Verwaltung vol. 75 (2022), Nr. 19, pp. 789–795
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Geminn, Christian: USA: Connecticut – Act Concerning Personal Data Privacy and Online Monitoring. In: ZD-Aktuell (2022), p. 01191
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Geminn, Christian:Limiting State Surveillance by Means of Constitutional Law: Potentials and Limitations.
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Geminn, Christian ; Artelt, André ; Hammer, Barbara ; Manzeschke, Arne ; Mavrina, Lina ; Weber, Carina:Faire Algorithmen und die Fairness von Erklärungen – Informatische, rechtliche und ethische Perspektiven. Duisburg : Universität Duisburg-Essen, 2022. — Schriftenreihe KI-basierte Sprachassistenten im Alltag
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Geminn, Christian: Zahlungsdaten im europäischen Datenwirtschaftsrecht. In: Recht der Zahlungsdienste (2022), pp. 148–155
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Huseljic, Denis ; Herde, Marek ; Muejde, Mehmet ; Sick, Bernhard: A Review of Uncertainty Calibration in Pretrained Object Detectors. In: arXiv e-prints (2022), p. arXiv:2210.02935
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In the field of deep learning based computer vision, the development of deep object detection has led to unique paradigms (e.g., two-stage or set-based) and architectures (e.g., Faster-RCNN or DETR) which enable outstanding performance on challenging benchmark datasets. Despite this, the trained object detectors typically do not reliably assess uncertainty regarding their own knowledge, and the quality of their probabilistic predictions is usually poor. As these are often used to make subsequent decisions, such inaccurate probabilistic predictions must be avoided. In this work, we investigate the uncertainty calibration properties of different pretrained object detection architectures in a multi-class setting. We propose a framework to ensure a fair, unbiased, and repeatable evaluation and conduct detailed analyses assessing the calibration under distributional changes (e.g., distributional shift and application to out-of-distribution data). Furthermore, by investigating the influence of different detector paradigms, post-processing steps, and suitable choices of metrics, we deliver novel insights into why poor detector calibration emerges. Based on these insights, we are able to improve the calibration of a detector by simply finetuning its last layer.
Jahl, A. ; Baraki, H. ; Jakob, S. ; Fax, M. ; Geihs, K.:Machine-learned Behaviour Models for a Distributed Behaviour Repository.. In: Proceedings of the 14th International Conference on Agents and Artificial Intelligence (ICAART 2022). vol. 1 : Scitepress, 2022 — ISBN 978-989-758-547-0, pp. 188–199
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Dynamically organised multi-agent systems that consist of heterogeneous participants require cooperation to fulfil complex tasks. Such tasks are commonly subdivided into subtasks that have to be executed by individual agents. The necessary teamwork demands coordination of the involved team members. In contrast to typical approaches like agent-centric and organisation-centric views, our solution is based on the task-centric view and thus contains active task components which select agents focusing on their Skills. It enables an encapsulated description of the task flow and its requirements including team cooperation, organisation, and location-independent allocation processes. Besides agent properties that represent syntactical and semantic information, agent behaviours are considered as well. The main contributions of this paper are hyperplane-based machine-learned Behaviour Models that are generated to capture the behaviour and consider the Behaviour Implementations as black boxes. These Behaviour Models are provided by a distributed behaviour repository that enables tasks to actively select fitting Behaviour Implementations. We evaluated our approach based on agents playing chessboard-like games autonomously.
Li, Mahei Manhai ; Press, U. K. (ed.):Theorizing a Service Structure - A Hypergraph-based Modeling Approach and Applications, 2022
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Hupe, Anna ; Bretschneider, Ulrich:How to Govern the Crowd? Governance Mechanisms in Crowd Work.. In: Pre-ICIS Workshop on the Changing Nature of Work (SIG 11th CNoW). Copenhagen, Denmark, 2022
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Nebel, Maxi ; Paul, Johannes:eIdentity im neuen Daten(wirtschafts)recht – eIDAS 2.0 und das Versprechen der dezentralen elektronischen Identifizierung.
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Nivarthi, Chandana Priya ; Vogt, Stephan ; Sick, Bernhard:Unified Autoencoder with Task Embeddings for Multi-Task Learning in Renewable Power Forecasting.. In: International Conference on Machine Learning and Applications (ICMLA) : IEEE, 2022, pp. 1530–1536
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Renewable power generation forecasts using machine learning are typically implemented as single-task learning models, where a separate model is trained for each photovoltaic or wind park. In recent years, transfer learning is gaining popularity in these systems, as it can be used to transfer the knowledge gained from source parks to a target park. However, for transferring the knowledge to a target park, there is a need to determine the most similar source park(s) among the existing parks. This similarity determination using historical power measurements is challenging when the target park has limited to no historical data samples. Therefore, we propose a simple multi-task learning architecture that initially learns a common representation of input weather features among the tasks, using a Unified Autoencoder (UAE) and then learns the task specific information utilizing a Task Embedding layer in a Neural Network (TENN). This proposed architecture, UAE-TENN, can be easily extended to new parks with or without historical data. An elaborate performance comparison of single and multi-task learning models is performed on six photovoltaic and wind farm datasets comprising a total of 529 parks. UAE-TENN significantly improves the performance of power forecasting by 10 to 19% for photovoltaic parks and 5 to 22% for wind parks compared to the baseline models. Even in the zero-shot learning scenario, when there is no historical data, we successfully demonstrate that the UAE-TENN improves the forecast accuracy for a new park by 19% for photovoltaic parks.
Nebel, Maxi ; Johannes, Paul:eIdentity im neuen Daten(wirtschafts)recht – eIDAS 2.0 und das Versprechen der dezentralen elektronischen Identifizierung.
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Hupe, Anna ; Bretschneider, Ulrich ; Trostmann, Tim ; Stubbemann, Lena:Barriers for SMEs in Adopting Crowdsourcing.. In: 35th Bled eConference Digital Restructuring and Human (Re)action. Maribor, Slovenia : University of Maribor Press, 2022 — ISBN 978-961-286-616-7, pp. 233–248
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Despite its undisputable benefits for firms, crowdsourcing is rarely applied in small and medium sized enterprises (SME), yet. Until today extant literature provides only an uncomplete picture of the barriers that hinder SMEs from adopting crowdsourcing. Because of these incomplete insights on this phenomenon there is a great deal of uncertainty on how to overcome these barriers all the more. In the scope of an interview series with 15 SMEs we explore a range of different barriers. The findings from our study do not only expand the so far incomplete body of knowledge but also provide practical references for SMEs to be aware of the barriers. This simplifies avoiding them and successfully adopting crowdsourcing.
Ochs, Carsten:The Digital Public and its Problems: Komplexität, Verfahren und Trägerschaft als rekursive Konstitutionsprobleme einer digitalen Problemöffentlichkeit.. In: Spiecker gen. Döhmann, I. ; Westland, M. ; Campos, R. (eds.): Demokratie und Öffentlichkeit im 21. Jahrhundert – zur Macht des Digitalen, Frankfurter Studien zum Datenschutz. Baden-Baden : Nomos, 2022 — ISBN 978-3-8487-7483-8, pp. 57–74
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Hohnsträter, D. ; Krankenhagen, S. ; Lamla, J. (eds.):Verbrauchermacht in Bewegung. Protest, Politik und sozio-technische Infrastrukturen. Baden-Baden : Nomos, 2022 — ISBN 978-3-8487-8787-6
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Hanika, Tom ; Schneider, Friedrich Martin ; Stumme, Gerd: Intrinsic dimension of geometric data sets. In: Tohoku Mathematical Journal vol. 74, Tohoku University, Mathematical Institute (2022), Nr. 1, pp. 23–52
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The curse of dimensionality is a phenomenon frequently observed in machine learning (ML) and knowledge discovery (KD). There is a large body of literature investigating its origin and impact, using methods from mathematics as well as from computer science. Among the mathematical insights into data dimensionality, there is an intimate link between the dimension curse and the phenomenon of measure concentration, which makes the former accessible to methods of geometric analysis. The present work provides a comprehensive study of the intrinsic geometry of a data set, based on Gromov's metric measure geometry and Pestov's axiomatic approach to intrinsic dimension. In detail, we define a concept of geometric data set and introduce a metric as well as a partial order on the set of isomorphism classes of such data sets. Based on these objects, we propose and investigate an axiomatic approach to the intrinsic dimension of geometric data sets and establish a concrete dimension function with the desired properties. Our model for data sets and their intrinsic dimension is computationally feasible and, moreover, adaptable to specific ML/KD-algorithms, as illustrated by various experiments.
Ohly, Sandra:Keynote: Studying Affect at the Cross-Road of Psychology and Computer Science.. In: 2022 IEEE International Conference on Pervasive Computing and Communications Workshops and other Affiliated Events (PerCom Workshops), 2022, pp. 377–377
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Krämer, N. ; Hornung, G. ; Jansen, C. ; Kluck, J. P. ; Rinsdorf, L. ; Setz, T. ; Steinebach, M. ; Vogel, I. ; et al.:Desinformationen und Messengerdienste: Herausforderung und Lösungsansätze.. In: Friedewald, M. ; Roßnagel, A. ; Heesen, J. ; Krämer, N. ; Lamla, J. (eds.): Künstliche Intelligenz, Demokratie und Privatheit. Baden-Baden : Nomos, 2022, pp. 317–349
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Lorenz, L.: Patientendatenschutz: Behandlungsvertragliche Nebenpflicht eines Arztes, für eine ordnungsgemäße Datenverarbeitung Sorge zu tragen, Anmerkung zu LG Flensburg, Urteil vom 19.11.2021 – 3 O 227/19. In: Gesundheit und Pflege (2022), pp. 115–117
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Eilers, Karen ; Peters, Christoph ; Leimeister, Jan Marco: Why the agile mindset matters. In: Technological Forecasting and Social Change vol. 179 (2022), Nr. 121650, pp. 1–14
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Volatility, uncertainty, complexity, and ambiguity (VUCA) are drivers in today's business world. To perform amid this accelerated change and the digitalization progress, organizations are implementing agility. However, such an implementation does not happen without stumbling blocks and some fail. One reason for this is actors’ agile mindset (AM), which is necessary to deal succefully within a VUCA environment. Knowledge of the AM is in its infancy and conceptualization and measuring tools for it are lacking. Furthermore, the relation of the AM in terms of strategic agility and performance is still unclear. Our study aims to close these gaps. We examine AM through 15 interviews and a survey (N = 449) to predict strategic agility and performance. As a result, we conceptualize AM as an attitude that comprises four dimensions: attitude towards 1) learning spirit, 2) collaborative exchange, 3) empowered self-guidance, and 4) customer co-creation. Furthermore, we describe how actors with an AM deal with new technologies. We found that AM affects organizational performance mediated by strategic agility. These findings contribute to the agility and management research by providing a conceptualization and measuring instrument for AM. Furthermore, its relevance for strategic agility is explained and its relationship with organizational performance outlined.
Geminn, Christian:Technologieregulierung im Mehrebenensystem – Das Gesetz über Künstliche Intelligenz.
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Heidecker, Florian:Detecting Corner Case in the Context of Highly Automated Driving.. In: Tomforde, S. ; Krupitzer, C. (eds.): Organic Computing -- Doctoral Dissertation Colloquium 2021 : kassel university press, 2022, pp. 60–73
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This article introduces a research proposal that aims to deﬁne, detect, and evaluate corner cases in the context of machine learning (ML) systems and highly automated driving. Corner cases are scenarios or data in a dataset that are recorded only very rarely and therefore only available in small quantities or not at all in the dataset. However, corner cases are very important for model training, as they are needed to improve the model performance in these rare scenarios. On the other hand, in safety- and security-critical applications, such as highly automated driving, corner case data is extremely important for testing and verifying the ML system. The research proposal addresses these challenges and focuses on the deﬁnition and categorization of corner cases. Based on this, ML methods for corner case detection are developed, focusing on object detection for automated driving and trajectory data for intention detection of pedestrians and cyclists. Finally, the research proposal addresses corner case metrics and the evaluation of the developed detection models.
Lorenz, L.: Zur Rechtskonformität des Erfordernisses eines Lichtbildes für die eGK unter besonderer Berücksichtigung des Rechts auf informationelle Selbstbestimmung sowie der Vorgaben der DSGVO – Teil II. In: Zeitschrift für Medizinrecht vol. 2022 (2022), pp. 1000–1005
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Lamla, Jörn:Zusammenfassung und Ausblick.. In: Hohnsträter, D. ; Krankenhagen, S. ; Lamla, J. (eds.): Verbrauchermacht in Bewegung. Protest, Politik und sozio-technische Infrastrukturen. Baden-Baden : Nomos, 2022, pp. 161–168
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Lamla, Jörn:Künstliche Intelligenz als hybride Lebensform. Zur Kritik der kybernetischen Expansion.. In: Friedewald, M. ; Roßnagel, A. ; Heesen, J. ; Krämer, N. ; Lamla, J. (eds.): Künstliche Intelligenz, Demokratie und Privatheit. Baden-Baden : Nomos, 2022, pp. 77–100
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Heissler, Clara ; Kern, Marcel ; Ohly, Sandra: When thinking about work makes employees reach for their devices: A longitudinal autoregressive diary study. In: Journal of Business and Psychology (2022)
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Dürrschnabel, Dominik ; Hanika, Tom ; Stumme, Gerd: Discovering Locally Maximal Bipartite Subgraphs (2022). — cite arxiv:2211.10446Comment: 12 pages, 3 figures, 3 tables
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Induced bipartite subgraphs of maximal vertex cardinality are an essential concept for the analysis of graphs. Yet, discovering them in large graphs is known to be computationally hard. Therefore, we consider in this work a weaker notion of this problem, where we discard the maximality constraint in favor of inclusion maximality. Thus, we aim to discover locally maximal bipartite subgraphs. For this, we present three heuristic approaches to extract such subgraphs and compare their results to the solutions of the global problem. For the latter, we employ the algorithmic strength of fast SAT-solvers. Our three proposed heuristics are based on a greedy strategy, a simulated annealing approach, and a genetic algorithm, respectively. We evaluate all four algorithms with respect to their time requirement and the vertex cardinality of the discovered bipartite subgraphs on several benchmark datasets
He, Yujiang:Adaptive Explainable Continual Learning Framework for Regression Problems with Focus on Power Forecasts.. In: Tomforde, S. ; Krupitzer, C. (eds.): Organic Computing -- Doctoral Dissertation Colloquium 2021 : kassel university press, 2022, pp. 125–140
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Compared with traditional deep learning techniques, continual learning enables deep neural networks to learn continually and adaptively. Deep neural networks have to learn unseen tasks and overcome forgetting the knowledge obtained from previously learned tasks as the amount of data keeps increasing in applications. This article proposes two continual learning application scenarios, i.e., the target-domain incremental scenario and the data-domain incremental scenario, to describe the potential challenges in this context. Based on our previous work regarding the CLeaR framework, which is short for continual learning for regression tasks, models will be enabled to extend themselves and to learn data successively. Research topics are related, but not limited, to developing continual deep learning algorithms, strategies for non-stationarity detection in data streams, explainable and visualizable artificial intelligence, etc. Moreover, the framework- and algorithm-related hyperparameters should be dynamically updated in applications. Forecasting experiments will be conducted based on power generation and consumption data collected from real-world applications. A series of comprehensive evaluation metrics and visualization tools are applied to access the experimental results. The proposed framework is expected to be generally applied to other constantly changing scenarios.
Dürrschnabel, Dominik ; Hanika, Tom ; Stubbemann, Maximilian:FCA2VEC: Embedding Techniques for Formal Concept Analysis.. In: Missaoui, R. ; Kwuida, L. ; Abdessalem, T. (eds.): Complex Data Analytics with Formal Concept Analysis : Springer International Publishing, 2022, pp. 47–74
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Morold, M. ; Bachmann, M. ; David, K.: Towards Context Awareness for Cooperative VRU Collision Avoidance. In: IEEE Vehicular Technology Magazine vol. 17 (2022), Nr. 3, pp. 75 – 83
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Morold, M. ; Bachmann, M. ; David, K.: Toward Context Awareness for Cooperative Vulnerable Road User Collision Avoidance: Incorporating Related Contextual Information. In: IEEE Vehicular Technology Magazine vol. 17 (2022), Nr. 3, pp. 75–83
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Lorenz, L.: Zur Rechtskonformität des Erfordernisses eines Lichtbildes für die eGK unter besonderer Berücksichtigung des Rechts auf informationelle Selbstbestimmung sowie der Vorgaben der DSGVO – Teil I. In: Zeitschrift für Medizinrecht vol. 2022 (2022), pp. 902–907
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Klee, Sven ; Janson, Andreas:Data Analytics for Effective Decision-Making in Crises - Identifying Relevant Data Analytics Competencies for Automotive Procurement Departments.. In: International Conference on Information Systems (ICIS). Copenhagen, Denmark, 2022
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Crises become the norm for organizations, as recent years have shown. Especially the automotive industry is still facing disruptive changes such as e-mobility, connected cars or autonomous driving. Disrupted supply chains, related production downtimes and associated financial losses are consequences. Procurement departments are the interface between internal and external stakeholders in supply chains, and therefore, the central authority for managing crises. In such situations, effective decision-making is essential. Positive effects of data analytics on decision-making were part of numerous research endeavors, as well as related data analytics competencies. We conducted semi-structured interviews with experienced experts about relevant data analytics competencies in procurement departments. We present an overview specifically for procurement departments and derive implications of these competencies on decision-making. As a result, we apply our findings to existing research from a theoretical perspective and support procurement leaders and their departments in facing current and future challenges from a practical perspective.
Moallemy-Oureh, Alice ; Beddar-Wiesing, Silcia ; Nather, Rüdiger ; Thomas, Josephine M.: FDGNN: Fully Dynamic Graph Neural Network. In: arXiv e-prints (2022), p. arXiv:2206.03469
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Dynamic Graph Neural Networks recently became more and more important as graphs from many scientific fields, ranging from mathematics, biology, social sciences, and physics to computer science, are dynamic by nature. While temporal changes (dynamics) play an essential role in many real-world applications, most of the models in the literature on Graph Neural Networks (GNN) process static graphs. The few GNN models on dynamic graphs only consider exceptional cases of dynamics, e.g., node attribute-dynamic graphs or structure-dynamic graphs limited to additions or changes to the graph's edges, etc. Therefore, we present a novel Fully Dynamic Graph Neural Network (FDGNN) that can handle fully-dynamic graphs in continuous time. The proposed method provides a node and an edge embedding that includes their activity to address added and deleted nodes or edges, and possible attributes. Furthermore, the embeddings specify Temporal Point Processes for each event to encode the distributions of the structure- and attribute-related incoming graph events. In addition, our model can be updated efficiently by considering single events for local retraining.
Moallemy-Oureh, Alice:Student Research Abstract: Continuous-Time Generative Graph Neural Network for Attributed Dynamic Graphs.. In: ACM/SIGAPP Symposium on Applied Computing (SAC) : ACM, 2022, pp. 600–603
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The history of neural networks dates back to the early 1940s and has not only evolved rapidly over time but they are now amongst one of the most popular and powerful machine learning techniques. In this area, graph representation learning (GRL) using graph neural networks (GNNs) has emerged during the early 90s and developed into an impactful approach for modeling graph-structured real-world data, such as social or biological networks. There are a variety of successful applications of GRL in computational neuroscience, chemistry, mathematics, and so on. While temporal changes (dynamics) play an essential role in many real-world applications, most of the literature on GNNs and GRL, deals with static graphs. Since the few GNN models on dynamic graphs only consider exceptional cases of dynamics (i.e., attribute-dynamic graphs in discrete-time representation or structure-dynamic graphs in continuous-time representation), we aim to present a novel GNN model that can handle attribute-dynamic graphs in continuous time. This model learns any kind of graph information embedding, performs node/edge attribute forecasts, and allows for attribute-dynamic graph generation in both discrete and continuous-time.
He, Yujiang ; Huang, Zhixin ; Sick, Bernhard:Design of Explainability Module with Experts in the Loop for Visualization and Dynamic Adjustment of Continual Learning.. In: Workshop on Interactive Machine Learning Workshop (IMLW), AAAI, 2022, pp. 1–6
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Continual learning can enable neural networks to evolve by learning new tasks sequentially in task-changing scenarios. However, two general challenges should be overcome in further research before we apply this technique to real-world applications. Firstly, newly collected novelties from the data stream in applications could contain anomalies that are meaningless for continual learning. Instead of viewing them as a new task for updating, we have to filter out such anomalies to reduce the disturbance of extremely high-entropy data for the progression of convergence. Secondly, fewer efforts have been put into research regarding the explainability of continual learning, which leads to a lack of transparency and credibility of the updated neural networks. Elaborated explanations about the process and result of continual learning can help experts in judgment and making decisions. Therefore, we propose the conceptual design of an explainability module with experts in the loop based on techniques, such as dimension reduction, visualization, and evaluation strategies. This work aims to overcome the mentioned challenges by sufficiently explaining and visualizing the identified anomalies and the updated neural network. With the help of this module, experts can be more confident in decision-making regarding anomaly filtering, dynamic adjustment of hyperparameters, data backup, etc.
Lorenz, L.: Umfang der Auskunftspflicht des Betreibers einer Social Media-Plattform nach § 21 II 2 TTDSG gegenüber einer minderjährigen Nutzerin, Anmerkung zu OLG Schleswig, Beschl. v. 23.3.2022 – 9 Wx 23/21. In: Neue Zeitschrift für Familienrecht 2022 (2022), Nr. 524
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Hornung, Gerrit ; Söllner, Matthias ; Stroscher, Jan-Philipp ; Zahn, Eva-Maria: Kollaboration im Datenschutz. Datenschutz und Datensicherheit. In: Datenschutz und Datensicherheit - DuD vol. 46 (2022), Nr. 6, pp. 384–389
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Die DSGVO enthält sehr unterschiedliche Vorgaben zur Zusammenarbeit verschiedener Akteure, aber kein systematisches Modell für die Ausgestaltung dieser Formen der Zusammenarbeit. Gerade für KMU könnten standardisierte Verfahren ein Ansatz zur effizienten Umsetzung sein. Der Beitrag untersucht die Frage, an welchen Stellen Ansätze des Collaboration Engineering Zusammenarbeitsprozesse ermöglichen würden, die die gesetzlichen Vorgaben mit Leben füllen.
Johannes, Paul C.:Einwilligung und Belehrung im Polizeidatenschutz.. In: Heinze, C. (ed.): Daten, Plattformen und KI als Dreiklang unserer Zeit. vol. Tagungsband DSRI-Herbstakademie, 2022, pp. 213–228
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Felde, Maximilian ; Stumme, Gerd:Attribute Exploration with Multiple Contradicting Partial Experts.. In: Braun, T. ; Cristea, D. ; Jäschke, R. (eds.): Graph-Based Representation and Reasoning. Cham : Springer International Publishing, 2022 — ISBN 978-3-031-16663-1, pp. 51–65
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Attribute exploration is a method from Formal Concept Analysis (FCA) that helps a domain expert discover structural dependencies in knowledge domains which can be represented as formal contexts (cross tables of objects and attributes). In this paper we present an extension of attribute exploration that allows for a group of domain experts and explores their shared views. Each expert has their own view of the domain and the views of multiple experts may contain contradicting information.
Mucha, Henrik ; de Barros, Ana Correia ; Benjamin, Jesse Josua ; Benzmüller, Christoph ; Bischof, Andreas ; Buchmüller, Sandra ; de Carvalho, Alexandra ; Dhungel, Anna-Katharina ; et al.: Collaborative Speculations on Future Themes for Participatory Design in Germany. In: i-com vol. 21 (2022), Nr. 2, pp. 283–298
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Participatory Design means recognizing that those who will be affected by a future technology should have an active say in its creation. Yet, despite continuous interest in involving people as future users and consumers into designing novel and innovative future technology, participatory approaches in technology design remain relatively underdeveloped in the German HCI community. This article brings together the diversity of voices, domains, perspectives, approaches, and methods that collectively shape Participatory Design in Germany. In the following, we (1) outline our understanding of participatory practice and how it is different from mere user involvement; (2) reflect current issues of participatory and fair technology design within the German Participatory Design community; and (3) discuss tensions relevant to the field, that we expect to arise in the future, and which we derived from our 2021 workshop through a speculative method. We contribute an introduction and an overview of current themes and a speculative outlook on future issues of Participatory Design in Germany. It is meant to inform, provoke, inspire and, ultimately, invite participation within the wider Computer Science community.
Hornung, Gerrit ; Schomberg, Sabrina: Datensouveränität im Spannungsfeld zwischen Datenschutz und Datennutzung: das Beispiel des Data Governance Acts. In: Computer und Recht (2022), pp. 508–516
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Faulhaber, A. K. ; Hoppe, M. ; Schmidt, L.:Priority-Dependent Display of Notifications in the Peripheral Field of View of Smart Glasses.. In: 28th IEEE Conference on Virtual Reality and 3D User Interfaces: Abstracts and Workshops (Christchurch 2022). Piscataway : IEEE, 2022, pp. 586–587
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We propose a concept for displaying notifications in the peripheral field of view of smart glasses aiming to achieve a balance between perception and distraction depending on the priority of the notification. We designed three different visualizations for notifications of low, medium, and high priority. To evaluate this concept, we conducted a study with 24 participants who reacted to the notifications while performing a primary task. Reaction times for the low-priority notification were significantly higher. The medium- and high-priority notifications did not show a clear difference.
Faulhaber, A. K. ; Hoppe, M. ; Schmidt, L.: Evaluation of Priority-Dependent Notifications for Smart Glasses Based on Peripheral Visual Cues. In: i-com - Zeitschrift für interaktive und kooperative Medien vol. 21 (2022), Nr. 2, pp. 239–252
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Smart glasses are increasingly commercialized and may replace or at least complement smartphones someday. Common smartphone features, such as notifications, should then also be available for smart glasses. However, notifications are of disruptive character given that even unimportant notifications frequently interrupt users performing a primary task. This often leads to distractions and performance degradation. Thus, we propose a concept for displaying notifications in the peripheral field of view of smart glasses and with different visualizations depending on the priority of the notification. We developed three icon-based notifications representing increasing priority: a transparent green icon continuously becoming more opaque (low priority), a yellow icon moving up and down (medium priority), and a red and yellow flashing icon (high priority). To evaluate the concept, we conducted a study with 24 participants who performed a primary task and should react to notifications at the same time using the Nreal Light smart glasses. The results showed that reaction times for the low-priority notification were significantly higher and it was ranked as the least distracting. The medium- and high-priority notifications did not show a clear difference in noticeability, distraction, or workload. We discuss implications of our results for the perception and visualization of notifications in the peripheral field of view of smart glasses and, more generally, for augmented reality applications.
Hassouna, Mohamed:Self-Adaptive Charging Management in Electric Vehicle Infrastructures based on Reinforcement Learning.. In: Tomforde, S. ; Krupitzer, C. (eds.): Organic Computing -- Doctoral Dissertation Colloquium 2022 : kassel university press, 2022, pp. 1–16
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Electromobility plays an increasingly important role in the energy transition. Electric vehicle charging poses challenges to the electricity grid due to high peak demand situations. Therefore, it is crucial to leverage the vehicle's flexibility when charging can be delayed. Conventional charging management systems cannot adapt to frequently changing conditions such as fluctuating renewable energy output, electricity prices and user behavior. In this article, we investigate the application of reinforcement learning approaches for self-adaptive charging management. In particular, we identify challenges regarding realistic environments and adaption to varying topologies and connections among charging stations. We describe related approaches and propose ideas and planned experiments to overcome these problems by utilizing generative models and graph neural networks.
Faulhaber, A. K. ; Hegenberg, J. ; Kahnt, S. E. ; Lambrecht, F. ; Leonhäuser, D. ; Saake, S. ; Wehr, F. ; Schmidt, L. ; et al.: Development of a Passenger Assistance System to Increase the Attractiveness of Local Public Transport. In: Sustainability vol. 14 (2022), Nr. 7, pp. 1–17 (4151)
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In this paper, we present a concept for an assistance system for public transport passengers currently being developed for Kassel, Germany, and its surrounding area. The assistance system aims at increasing the attractiveness of local public transport by reducing barriers to use, thus promoting sustainable travel behavior. Three main barriers were identified: crowded vehicles, missed connections, and inconveniences in the transportation of shopping bags and luggage. To tackle these issues, three assistance system services were conceptualized: the occupancy rate informing passengers about the occupancy level of vehicles, the transfer connection monitor and secure system giving passengers the option to communicate transfer connection requests, and the delivery service allowing the use of public transport while shopping without the need to transport purchased goods. The three services are presented in detail along with the user interfaces they will be integrated into. Moreover, for the further implementation of the assistance system, a user requirement analysis is outlined. We finally give an overview and outlook regarding the implementation and evaluation of the concept in laboratory studies and a one-year field study.
Loeser, Inga ; Braun, Martin ; Gruhl, Christian ; Menke, Jan-Hendrik ; Sick, Bernhard ; Tomforde, Sven: The Vision of Self-Management in Cognitive Organic Power Distribution Systems. In: Energies vol. 15, MDPI (2022), Nr. 3, p. 881
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Due to the ongoing trend towards a decarbonisation of energy use, the power system is expected to become the backbone of all energy sectors and thus the fundamental critical infrastructure. High penetration with distributed energy resources demands the coordination of a large number of prosumers, partly controlled by home energy management systems (HEMS), to be designed in such a way that the power system’s operational limits are not violated. On the grid level, distribution management systems (DMS) seek to keep the power system in the normal operational state. On the prosumer level, distributed HEMS optimise the internal power flows by setpoint specification of batteries, photovoltaic generators, or flexible loads. The vision of the ODiS (Organic Distribution System) initiative is to develop an architecture to operate a distribution grid reliably, with high resiliency, and fully autonomously by developing “organic” HEMS and DMS which possess multiple self-x capabilities, collectively referred to as self-management. Thus, ODiS seeks answers to the following question: How can we create the most appropriate models, techniques, and algorithms to develop novel kinds of self-configuring, self-organising, self-healing, and self-optimising DMS that are integrally coupled with the distributed HEMS? In this concept paper, the vision of ODiS is presented in detail based on a thorough review of the state of the art.
Elshan, Edona ; Siemon, Dominik ; de Vreede, Triparna ; de Vreede, Gert-Jan ; Oeste-Reiß, Sarah ; Ebel, Philipp:Requirements for AI-based Teammates: A Qualitative Inquiry in the Context of Creative Workshops.. In: Hawaii International Conference on System Sciences (HICSS), 2022
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Innovation requires organizations to tap into the knowledge and creativity of teams. However, teams are confronted with massive amounts of data and information, necessitating a broad set of knowledge, methodologies, and approaches to solve problems and innovate. Consequently, team composition has become a critical challenge. Recent advances in artificial intelligence (AI) may assist in addressing this challenge. As AI is permeating both business and private sectors, organizational teams may be augmented with AI team members. However, given the nascent nature of this phenomenon, little is known about the specific roles and requirements for such AI teammates. Within an interview study we discover common challenges in teams and identify recurring capability gaps of participants and behaviors that negatively impact the team's collective performance. Based on our findings, we propose requirements for AI-based teammates to address these gaps and support beneficial collaboration between humans and AI in teams.
Johannes, Paul C.: Marktübersicht zu Schulungen Datenschutzbeauftragter. In: ZD-Aktuell (2022), p. 01115
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Lamla, Jörn ; Büttner, Barbara ; Ochs, Carsten ; Pittroff, Fabian ; Uhlmann, Markus:Privatheit und Digitalität: Zur soziotechnischen Transformation des selbstbestimmten Lebens.. In: Roßnagel, A. ; Friedewald, M. (eds.): Die Zukunft von Privatheit und Selbstbestimmung, DuD-Fachbeiträge. Wiesbaden : Springer Vieweg, 2022 — ISBN 978-3-658-35262-2, pp. 125–158
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Der Beitrag wendet sich dem ambivalenten Zusammenspiel von Privatheit und Digitalität zu, indem er deren Relevanz für Diskurse und Praktiken der Selbstbestimmung ausleuchtet und auf die soziotechnischen Transformationen dieses Zusammenspiels bezieht. Privatheit und Digitalität werden dabei als gesellschaftlich mitkonstituierte Sozialformen, Assemblagen oder Kommunikationsverhältnisse perspektiviert, die von historisch sich wandelnden soziokulturellen Einflussgrößen durchzogen sind. Um die skizzierte Perspektive einzunehmen werden wir zunächst die einschlägigen soziologischen Wissensbestände zu einer kursorischen Darstellung gesellschaftstheoretischer Perspektiven auf Privatheit verdichten. Daraufhin wenden wir uns den soziologischen Digitalisierungsforschungen zu, die die Konzeptualisierung von Privatheit nicht unberührt lassen. Hierbei wird v. a. herausgearbeitet, dass das soziologische und gesellschaftstheoretische Bild von Privatheit um Aspekte des Technischen und Materiellen erweitert werden muss. Theoretisch entsprechend eingestellt werden wir sodann eine Analyse von Selbstbestimmung unter soziodigitalen Verhältnissen präsentieren, die sich an vier zentralen Problemfeldern von Privatheit und Digitalität entfaltet: Die soziale Prämierung von Sichtbarkeit; soziale Konsequenzen digitaler Verhaltensformung; die soziale Dynamik datenökonomischer Erlösmodelle; sowie die Auswirkungen, die sich aus alldem für die Entscheidungsfreiheiten von Nutzenden ergeben. Im Fazit des Beitrags werden Konsequenzen für eine demokratische und an Selbstbestimmung orientierte Gestaltung von Privatheit benannt. Hierbei zeigt sich ein erheblicher Bedarf an einer Politik der Gestaltung und Regulierung von soziodigitalen Infrastrukturen, die eine Datenökonomie befördert, welche sich der demokratischen Kontrolle, Mitbestimmung und v. a. der Kritik öffnet. Zentrale Kompetenz individueller, wie kollektiver Selbstbestimmung wird damit die Fähigkeit zur Kritik der normierenden Gehalte und Effekte soziodigitaler Infrastrukturen. Diese muss aus den soziodigitalen Verhältnissen und praktischen Situationen selbst erwachsen und die Pluralität von Rechtfertigungsordnungen moderner Gesellschaften einbeziehen, um so die Kontingenz bestehender normativer Ordnungen erfahrbar und alternative Infrastrukturgestaltungspfade begehbar zu machen: Nur wenn die Infrastrukturen gewährleisten, dass der Faden zur kritischen Praxis nicht reißt, kann Privatheit unter soziodigitalen Bedingungen Ort der Selbstbestimmung bleiben.
Ohly, Sandra ; Zacher, Hannes:12 Work Design.. In: Zacher, H. ; Lehmann-Willenbrock, N. (eds.): Work, Organizational, and Business Psychology: An Introductory Textbook. Stuttgart : W. Kohlhammer, 2022 — ISBN 978-3-17-037579-6, pp. 204–217
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Englhardt, Adrian ; Trittenbach, Holger ; Kottke, Daniel ; Sick, Bernhard ; Böhm, Klemens: Efficient SVDD sampling with approximation guarantees for the decision boundary. In: Machine Learning vol. 111, Springer (2022), Nr. 4, pp. 1349–1375
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Support Vector Data Description (SVDD) is a popular one-class classifier for anomaly and novelty detection. But despite its effectiveness, SVDD does not scale well with data size. To avoid prohibitive training times, sampling methods select small subsets of the training data on which SVDD trains a decision boundary hopefully equivalent to the one obtained on the full data set. According to the literature, a good sample should therefore contain so-called boundary observations that SVDD would select as support vectors on the full data set. However, non-boundary observations also are essential to not fragment contiguous inlier regions and avoid poor classification accuracy. Other aspects, such as selecting a sufficiently representative sample, are important as well. But existing sampling methods largely overlook them, resulting in poor classification accuracy. In this article, we study how to select a sample considering these points. Our approach is to frame SVDD sampling as an optimization problem, where constraints guarantee that sampling indeed approximates the original decision boundary. We then propose RAPID, an efficient algorithm to solve this optimization problem. RAPID does not require any tuning of parameters, is easy to implement and scales well to large data sets. We evaluate our approach on real-world and synthetic data. Our evaluation is the most comprehensive one for SVDD sampling so far. Our results show that RAPID outperforms its competitors in classification accuracy, in sample size, and in runtime.
Lorenz, L.: Welcome back, QR-Code! – Teil II. In: Zeitschrift zum Innovations- und Technikrecht 2022 (2022), pp. 16–22
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Engel, Christian ; Ebel, Philipp ; Leimeister, Jan Marco: Cognitive automation. In: Electronic Markets vol. 32 (2022), Nr. 1, pp. 339–350
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Facilitated by AI technology, the phenomenon of cognitive automation extends the scope of deterministic business process automation (BPA) through the probabilistic automation of knowledge and service work. By transforming work systems through cognitive automation, organizations are provided with vast strategic opportunities to gain business value. However, research lacks a unified conceptual lens on cognitive automation, which hinders scientific progress. Thus, based on a Systematic Literature Review, we describe the fundamentals of cognitive automation and provide an integrated conceptualization. We provide an overview of the major BPA approaches such as workflow management, robotic process automation, and Machine Learning-facilitated BPA while emphasizing their complementary relationships. Furthermore, we show how the phenomenon of cognitive automation can be instantiated by Machine Learning-facilitated BPA systems that operate along the spectrum of lightweight and heavyweight IT implementations in larger IS ecosystems. Based on this, we describe the relevance and opportunities of cognitive automation in Information Systems research.
Elshan, Edona ; Zierau, Naim ; Engel, Christian ; Janson, Andreas ; Leimeister, Jan Marco: Understanding the Design Elements Affecting User Acceptance of Intelligent Agents: Past, Present and Future. In: Information Systems Frontiers (Inf Syst Front) vol. 24 (2022), Nr. 3, pp. 699–730
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Intelligent agents (IAs) are permeating both business and society. However, interacting with IAs poses challenges moving beyond technological limitations towards the human-computer interface. Thus, the knowledgebase related to interaction with IAs has grown exponentially but remains segregated and impedes the advancement of the field. Therefore, we conduct a systematic literature review to integrate empirical knowledge on user interaction with IAs. This is the first paper to examine 107 Information Systems and Human-Computer Interaction papers and identified 389 relationships between design elements and user acceptance of IAs. Along the independent and dependent variables of these relationships, we span a research space model encompassing empirical research on designing for IA user acceptance. Further we contribute to theory, by presenting a research agenda along the dimensions of the research space, which shall be useful to both researchers and practitioners. This complements the past and present knowledge on designing for IA user acceptance with potential pathways into the future of IAs.
Ochs, Carsten:Soziologie der Privatheit. Informationelle Teilhabebeschränkung vom Reputation Management bis zum Recht auf Unberechenbarkeit. Weilerswist-Metternich : Velbrück Wissenschaft, 2022 — ISBN 978-3-95832-309-4
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Nivarthi, Chandana Priya:Transfer Learning as an Essential Tool for Digital Twins in Renewable Energy Systems.. In: Tomforde, S. ; Krupitzer, C. (eds.): Organic Computing -- Doctoral Dissertation Colloquium 2021 : kassel university press, 2022, pp. 47–59
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Transfer learning (TL), the next frontier in machine learning (ML), has gained much popularity in recent years, due to the various challenges faced in ML, like the requirement of vast amounts of training data, expensive and time-consuming labelling processes for data samples, and long training duration for models. TL is useful in tackling these problems, as it focuses on transferring knowledge from previously solved tasks to new tasks. Digital twins and other intelligent systems need to utilise TL to use the previously gained knowledge and solve new tasks in a more self-reliant way, and to incrementally increase their knowledge base. Therefore, in this article, the critical challenges in power forecasting and anomaly detection in the context of renewable energy systems are identified, and a potential TL framework to meet these challenges is proposed. This article also proposes a feature embedding approach to handle the missing sensors data. The proposed TL methods help to make a system more autonomous in the context of organic computing.
Schwede, Melanie ; Zierau, Naim ; Janson, Andreas ; Hammerschmidt, Maik ; Leimeister, Jan Marco:“I Will Follow You!” – How Recommendation Modality Impacts Processing Fluency and Purchase Intention.. In: International Conference on Information Systems (ICIS). Copenhagen, Denmark, 2022
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Although conversational agents (CA) are increasingly used for providing purchase recommendations, important design questions remain. Across two experiments we examine with a novel fluency mechanism how recommendation modality (speech vs. text) shapes recommendation evaluation (persuasiveness and risk), the intention to follow the recommendation, and how modality interacts with the style of recommendation explanation (verbal vs. numerical). Findings provide robust evidence that text-based CAs outperform speech-based CAs in terms of processing fluency and consumer responses. They show that numerical explanations increase processing fluency and purchase intention of both recommendation modalities. The results underline the importance of processing fluency for the decision to follow a recommendation and highlight that processing fluency can be actively shaped through design decisions in terms of implementing the right modality and aligning it with the optimal explanation style. For practice, we offer actionable implications on how to make effective sales agents out of CAs.
Schild, H.-H.: Verarbeitung der PNR-Fluggastaten, Anmerkung zu EuGH, Urteil v. 21.06.2022 – C-819/19. In: Zeitschrift für Datenschutz vol. 2022 (2022), pp. 558–560
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Schaller, T.: Das Recht der IT-Sicherheit in der Stromversorgung. Unter besonderer Berücksichtigung des IT-Sicherheitsgesetzes 2.0 und der neuen BSI-Kritisverordnung (BSI-KritisV). In: Computer und Recht 2022 (2022), pp. 635–643
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Roßnagel, Alexander ; Geminn, Christian ; Müller, Johannes ; Johannes, Paul: Auswirkungen ausländischer Gesetzgebung auf die deutsche Cybersicherheit. In: Datenschutz und Datensicherheit (2022), pp. 156–163
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Schmitt, Anuschka:Examining Trust in Conversational Systems: Conceptual and Empirical Findings on User Trust, Related Behavior, and System Trustworthiness.. In: AAAI/ACM Conference on AI, Ethics, and Society (AIES). Oxford, United Kingdom, 2022 — ISBN 978-1-4503-9247-1
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Machine learning (ML)-based conversational systems represent a value enabler for human-machine interaction. Simultaneously, the opacity, complexity, and humanness accompanied by such systems introduce their own issues, including trust misalignment. While trust is viewed as a prerequisite for effective system use, few studies have considered calibrating for appropriate trust, and empirically testing the relationship between trust and related behavior. Moreover, the desired implications of transparency-enhancing design cues are ambiguous. My research aims to explore the impact of system performance on trust, the dichotomy between trust and behavior, and how transparency might help attenuate the effects caused by low system performance in the specific context of decision-making tasks assisted by ML-based conversational systems.
Braidotti, R. ; Jones, E. ; Klumbytė, G. (eds.):More Posthuman Glossary, Theory in the New Humanities. First. : Bloomsbury Publishing, 2022 — ISBN 9781350231443
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The notion of the posthuman continues to both intrigue and confuse, not least because of the huge number of ideas, theories and figures associated with this term. More Posthuman Glossary provides a way in to the dizzying array of posthuman concepts, providing vivid accounts of emerging terms. It is much more than a series of definitions, however, in that it seeks to imagine and predict what new terms might come into being as this exciting field continues to expand. A follow-up volume to the brilliant interventions of Posthuman Glossary (2018), this book extends and elaborates on that work, particularly focusing on concepts of race, indigeneity and new ideas in radical ecology. It also includes new and emerging voices within the new humanities and multiple modes of communicating ideas. This is an indispensible glossary for those who are exploring what the non-human, inhuman and posthuman might mean in the 21st century.
Dankwa, Nana Kesewaa: Traversing the Insider’s Path toward Equitable Research Practices for Migrants. In: Interactions vol. 29. New York, NY, USA, Association for Computing Machinery (2022), Nr. 2, pp. 62–65
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In this forum we explore different perspectives for how to apply intersectionality as a critical framework for design across multiple contexts. --- Yolanda A. Rankin and Jakita O. Thomas, Editors
Braidotti, Rosi ; Jones, Emily ; Klumbytė, Goda:Convergences.. In: Braidotti, R. ; Jones, E. ; Klumbytė, G. (eds.): More Posthuman Glossary : Bloomsbury Publishing, 2022, pp. 21–22
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Braidotti, Rosi ; Klumbytė, Goda:Posthuman Care.. In: Braidotti, R. ; Jones, E. ; Klumbytė, G. (eds.): More Posthuman Glossary : Bloomsbury Publishing, 2022, pp. 105–106
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Schild, H.-H.: Regelung der Verarbeitung von Beschäftigtendaten durch nationale Spezifizierung, Anmerkung zu EuGH, Schlussanträge v. 22.9.2022 – C-34/21. In: Zeitschrift für Datenschutz vol. 2022 (2022), pp. 664–666
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Schmitt, Anuschka ; Walser, Maximilian ; Fahse, Tobias Benjamin:Conceptual Foundations on Debiasing for Machine Learning-Based Software.. In: International Conference of Information Systems (ICIS). Copenhagen, Denmark, 2022
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Machine learning (ML)-based software’s deployment has raised serious concerns about its pervasive and harmful consequences for users, business, and society inflicted through bias. While approaches to address bias are increasingly recognized and developed, our understanding of debiasing remains nascent. Research has yet to provide a comprehensive coverage of this vast growing field, much of which is not embedded in theoretical understanding. Conceptualizing and structuring the nature, effect, and implementation of debiasing instruments could provide necessary guidance for practitioners investing in debiasing efforts. We develop a taxonomy that classifies debiasing instrument characteristics into seven key dimensions. We evaluate and refine our taxonomy through nine experts and apply our taxonomy to three actual debiasing instruments, drawing lessons for the design and choice of appropriate instruments. Bridging the gaps between our conceptual understanding of debiasing for ML-based software and its organizational implementation, we discuss contributions and future research.
Schild, H.-H.: Datenschutz vor Gericht - Eine Betrachtung des gerichtlichen Rechtsschutzes. In: Datenschutz-Berater (2022), pp. 332–335
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Roßnagel, Alexander ; Geminn, Christian ; Johannes, Paul C. ; Müller, Johannes: Auswirkungen ausländischer Gesetzgebung auf deutsche IT-Sicherheit. In: Datenschutz und Datensicherheit (2022), pp. 156–163
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Schmidt, Simon L. ; Li, Mahei Manhai ; Peters, Christoph:Requirements for an IT Support System based on Hybrid Intelligence.. In: Hawaii International Conference on System Sciences (HICSS), 2022
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In our digital world, all companies need IT support. The IT support staff is under high pressure solving user-based issues and facing an increase of heterogeneous systems. Hybrid intelligence could solve many issues due to the combination of machine power and the individual strengths of humans. As a part of a bigger design science research project, this paper derives requirements for an IT support system based on hybrid intelligence (ISSHI). 17 requirements from the literature and 21 requirements from 24 indepth interviews with IT support managers and support-agents from three different companies have been derived. These were evaluated and refined with a second interview series of five IT support stakeholders that led to a total of 24 consolidated requirements. Finally, these requirements were used to inform a system architecture for an ISSHI. This architecture shall serve as a foundation for future research directions regarding hybrid intelligence in IT support.
Schmidt, Simon ; Langes, Barbara ; Li, Mahei Manhai ; Peters, Christoph ; Kämpf, Tobias ; Leimeister, Jan Marco ; Boes, Andreas:Mit LabTeams KI gestalten – Eine neue Methode für die menschenzentrierte Gestaltung von KI-basierten IT-Support-Services.. In: Bruhn, M. ; Hadwich, K. (eds.): Smart Services, Forum Dienstleistungsmanagement. vol. 1. 1. ed.. Wiesbaden : Springer Gabler, 2022 — ISBN 978-3-658-37343-6, pp. 253–271
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Viele Innovationen aus Forschungs- und Entwicklungsprojekten scheitern in der Praxis, da die Beteiligten nicht von Anfang an bzw. nicht ausreichend involviert werden. Um diesem Problem entgegenzuwirken, bietet sich das Anwenden der LabTeam-Methode an, die im Zuge des Forschungsprojekts HISS entwickelt und erprobt wurde. Diese adressiert das nicht ausreichende Berücksichtigen des Wandels der Arbeit und die mangelhafte Involvierung der Beteiligten. Dieser Beitrag stellt diese Methode dar und stellt handlungsweisende Richtlinien vor.
Büscher, M. ; Gutjahr, A. ; Hornung, G. ; Schindler, S. ; Selzer, A. ; Spiecker gen. Döhmann, I. ; Stummer, S. ; Wilmer, T. ; et al.:Verhaltensbeeinflussung durch Beobachtung? Eine explorative Nutzerbefragung zu den Auswirkungen verschiedener Beobachtungssituationen. Darmstadt : Nationales Forschungszentrum für angewandte Cybersicherheit ATHENE, 2022
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Barev, Torben Jan ; Dickhaut, Ernestine ; Schomberg, Sabrina ; Janson, Andreas ; Schöbel, Sofia ; Grote, Thomas ; Hornung, Gerrit ; Leimeister, Jan Marco:Handlungsbroschüre. Systematisches Design digitaler Privacy Nudges – Handlungsempfehlungen zur Gestaltung von digitalen Privacy Nudges, ITeG Technical Reports ( Nr. 12). Kassel : Kassel University Press, 2022 — ISBN 978-3-7376-1088-9
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Digitale Arbeitsumgebungen sind heutzutage allgegenwärtig. Zugleich hat die Anzahl an Möglichkeiten, Informationen über Arbeitstätigkeiten sowie sensible persönliche Daten elektronisch zu erfassen, drastisch zugenommen (Backhaus 2019). Unternehmen nutzen immer mehr Formen von digitalen Arbeitssystemen und setzen fortschrittliche Instrumente wie Big Data Analytik oder Künstliche Intelligenz ein. Damit können Daten schneller und in größerem Umfang als je zuvor gesammelt, aggregiert und analysiert werden (Malhotra et al. 2004). Darüber hinaus können Daten gesammelt werden, ohne dass der Einzelne davon weiß (Bélanger and Crossler 2011). Auf der einen Seite birgt die weit verbreitete Analyse von persönlichen Daten ein erhebliches Innovationspotenzial, einen wirtschaftlichen Wert sowie effizientere Arbeitsmodelle (Erevelles et al. 2016). Auf der anderen Seite ist die Anfälligkeit für Diskriminierung, kommerzielle Ausbeutung und unerwünschte Überwachung ebenso allgegenwärtig. Dadurch wird die Akzeptanz moderner IT‐Systeme behindert. Dieser Interessenkonflikt wird sich in den kommenden Jahren vermutlich noch verschärfen, da die Unternehmen von der fortschreitenden Digitalisierung profitieren.
Renner, Maximilian ; Lins, Sebastian ; Söllner, Matthias ; Thiebes, Scott ; Sunyaev, Ali:Understanding the Necessary Conditions of Multi-Source Trust Transfer in Artificial Intelligence.. In: Proceedings of the 55th Hawaii International Conference on System Sciences : Hawaii International Conference on System Sciences, 2022
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Trust plays an increasingly important role, especially in new emerging AI-capable technologies. While different frameworks on establishing trustworthy AI were developed, extant research mostly neglects trust transfer mechanisms. We focus on multi-source trust transfer while taking a dual trust perspective including trust in provider and trust in technology. Our study falls in the context of autonomous vehicles as a target and AI and vehicles as sources. While conducting a survey with 432 participants, we applied necessary condition analysis to understand which sources are necessary for a multi-source trust transfer. Our results indicate that for trust in technology, AI and vehicle technology are necessary sources. In contrast, for trust in provider, only vehicle provider represents a necessary source. We contribute to research by providing a fresh perspective on trust in AI-capable technologies, applying a novel data analysis method to reveal necessary trust sources, and consider duality of trust in trust transfer.
Roßnagel, Alexander ; Bile, Tamer ; Hansen, M. ; Bieker, F. ; Karaboga, M. ; Friedewald, M.:Zur Einführung einer Überwachungsgesamtrechnung. Karlsruhe : Fraunhofer ISI, 2022. — Schriftenreihe Forum Privatheit
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Cvetkovic, Izabel ; Oeste-Reiß, Sarah ; Lehmann-Willenbrock, Nale ; Bittner, Eva:What should AI know? Information disclosure in human-AI collaboration.. In: European Conference on Information Systems (ECIS). Timisoara, Romania, 2022
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AI-assisted Design Thinking shows great potential for supporting collaborative creative work. To foster creative thinking processes within teams with individualized suggestions, AI has to rely on data provided by the teams. As a prerequisite, team members need to weigh their disclosure preferences against the potential benefits of AI when disclosing information. To shed light on these decisions, we identify relevant information such as emotional states or discussion arguments that design thinking teams could provide to AI to enjoy the benefits of its support. Using the privacy calculus as theoretical lens, we draft a research design to analyze user preferences for disclosing different information relevant to the service bundles that AI provides for respective information. We make explorative contributions to the body of knowledge in terms of AI use and its corresponding information disclosure. The findings are relevant for practice as they guide the design of AI that fosters information disclosure.
Setz, T.:Desinformation in Messenger-Diensten und Hybrid-Medien – Sind NetzDG und MStV geeignete Blaupausen für die EU?. In: Bernzen, A. K. ; Grisse, K. ; Kaesling, K. (eds.): Immaterialgüter und Medien im Binnenmarkt Europäisierung des Rechts und ihre Grenzen. Bonn, 2022, pp. 175–199
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Schindler, S. ; Schomberg, S.:Der KI-Verordnungsentwurf und biometrische Erkennung: Ein großer Wurf oder kompetenzwidrige Symbolpolitik?. In: Friedewald, M. ; Roßnagel, A. ; Heesen, J. ; Krämer, N. ; Lamla, J. (eds.): Künstliche Intelligenz, Demokratie und Privatheit. Baden-Baden : Nomos, 2022 — ISBN 978-3-8487-7327-5, pp. 103–130
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Ali, Mohammad Wazed:Deep Adaptive Knowledge-Aware Learning for E-Mobility.. In: Tomforde, S. ; Krupitzer, C. (eds.): Organic Computing - Doctoral Dissertation Colloquium 2022 : kassel university press, 2022, pp. 139–155
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Electromobility can reduce global energy demand by reducing the dependence on fossil fuels. Many different types of electric vehicles (EVs) have been produced recently and EV usage is also rising. However, there is no fixed charging behavior of these EV users. Moreover, most renewable energy sources are stochastic in nature. Thus, it is essential that EV charging demand is controlled and adapted in advance to prevent catastrophic failures such as blackouts. Deep learning models are standard technology for power forecasting in many scenarios. However, there is a lack of real-world heterogeneous multi-source data in the e-mobility domain to train a deep learning model from scratch. Moreover, deep learning (DL) models lack model explainability. Therefore, EV stakeholders can benefit from a framework that coordinates deep transfer learning, interactive machine learning, and heterogeneous graph representation learning (to ensure self-explainability). This work aims to develop a novel framework to solve e-mobility-related tasks such as forecasting EV loads efficiently in a resource-constrained environment (data, computing power, etc.). It also describe various research challenges and potential approaches to build the proposed framework. This work also present a deep generative model to synthesize EV charging session data.
Schmitt, Anuschka ; Wambsganss, Thiemo ; Leimeister, Jan Marco: Conversational Agents for Information Retrieval in the Education Domain: A User-Centered Design Investigation. In: Proceedings of the ACM on Human-Computer Interaction (PACMHCI) vol. 6 (2022), Nr. 486
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Text-based conversational agents (CAs) are widely deployed across a number of daily tasks, including information retrieval. However, most existing agents follow a default design that disregards user needs and preferences, ultimately leading to a lack of usage and an unsatisfying user experience. To better understand how CAs can be designed in order to lead to effective system use, we deduced relevant design requirements from both literature and 13 user interviews. We built and tested a question-answering, text-based CA for an information retrieval task in an education scenario. Results from our experimental test with 41 students indicate that following a user-centered design has a significant positive effect on enjoyment and trust in a CA as opposed to deploying a default CA. If not designed with the user in mind, CAs are not necessarily more beneficial than traditional question-answering systems. Beyond practical implications for effective CA design, this paper points towards key challenges and potential research avenues when deploying social cues for CAs.
Schneegans, Jan ; Bieshaar, Maarten ; Sick, Bernhard:A Practical Evaluation of Active Learning Approaches for Object Detection.. In: Workshop on Interactive Adaptive Learning (IAL), ECML PKDD, 2022, pp. 49–67
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Deep learning models are trained most successfully in a supervised manner, which requires vast amounts of annotated data. With active learning, the annotation process can be made much more efficient by intelligently selecting the most valuable batches of samples to annotate and train on. Those samples are selected based on their utility regarding the training algorithm. In this work, we examine a wide range of such selection criteria for the task of object detection as performed by the widely applied Faster R-CNN model. We focus on the large and diverse BDD100K autonomous driving dataset, paying special attention to the model’s sub-tasks and the dataset’s meta information. Furthermore, we distinguish between approaches that select samples based on aleatoric or epistemic uncertainty. A selection of evaluation measures that cover specific error sources and the overall model performance suggests that there is little difference between the individual active learning approaches, even in regards to their specialized focus on different model parts and sub-tasks. We conclude with a detailed discussion of the implied mechanisms regarding the active learning approaches that seem to affect model performances.
Allen, Joseph Andrew ; Bipp, Tanja ; Buengeler, Claudia ; Dettmers, Jan ; Gerpott, Fabiola ; Gielnik, Michael M. ; Hirschi, Andreas ; Hüffmeier, Joachim ; et al.:Work, Organizational, and Business Psychology: An Introductory Textbook : Kohlhammer Verlag, 2022
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Ali, Mohammad Wazed:Heterogeneous Multi-Source Deep Adaptive Knowledge-Aware Learning for E-Mobility.. In: IEEE International Conference on Autonomic Computing and Self-Organizing Systems Companion (ACSOS-C) : IEEE, 2022, pp. 57–60
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Electromobility (e-mobility) reduces global fossil fuel-based energy demand and promotes the usage of renewable energy sources. Different types of electric vehicle (EVs) production have increased recently due to their need. However, there is no fixed charging behavior, and demand exists. Uncontrolled EV charging may lead to a harmful impact on the power grid. Besides, most renewable energy sources depend highly on the weather and location. Thus, analyzing, forecasting, and adapting EV charging demand is essential to prevent power outages. Deep Learning (DL) models are a de facto standard technology for energy forecasting in many scenarios. Still, there is a lack of real-world data in the e-mobility domain to train a DL model from scratch. Besides, DL models have explainability issues, which can hinder decision-making. This article proposes a novel framework for addressing data scarcity issues, enabling continuous adaptation to change, and improving explainability.
Beddar-Wiesing, Silvia:Student Research Abstract: Using Local Activity Encoding for Dynamic Graph Pooling in Stuctural-Dynamic Graphs.. In: ACM/SIGAPP Symposium on Applied Computing (SAC) : ACM, 2022, pp. 604–609
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Graphs have recently become more popular for modeling real-world as well as theoretical problems, and several Machine Learning algorithms for learning on them have developed. For graphs that change over time, however, research is still at an early stage. This article proposes a framework DynHeatmaP that generates a constant-size graph sequence representation of graphs whose structure changes over time (structural-dynamic, SDG) in linear time. The framework uses a representation of additions and deletions of nodes and edges (events) to perform dynamic graph pooling. Our algorithm translates the dynamic changes of the nodes and edges to a heatmap representation of the current node activity, regarding additions and deletions in the neighborhood, respectively. The created activity heatmap is utilized as probabilities of the nodes to be sampled in the subsequent pooling step. In addition, the neighborhood of selected nodes has been sampled such that the ratio of additions and deletions is represented accordingly. The obtained downsampled graph sequence can then be used representatively as input to a GNN for learning on the original stream. Focussing on the active regions in a graph, the fast pooling process can reduce the training time significantly and addresses the problem of unbalanced datasets in real-world applications modeled as sparse graphs.
Beddar-Wiesing, Silvia ; D’Inverno, Giuseppe Alessio ; Graziani, Caterina ; Lachi, Veronica ; Moallemy-Oureh, Alice ; Scarselli, Franco:On the Extension of the Weisfeiler-Lehman Hierarchy by WL Tests for Arbitrary Graphs.. In: Workshp on Mining and Learning on Graphs (MLG), ECML PKDD, 2022, pp. 1–13
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Graph isomorphism (GI) has occupied both theoreticians and applied scientists since the early 1950s. Over the years, several approaches and algorithms with which an isomorphism between two graphs can be tested have been developed. A general approach is the Weisfeiler–Lehman (WL) test, which is based on a coloring algorithm and provides a necessary criterion for graph isomorphism. However, the WL test is restricted to examining graphs with only node attributes. Therefore, this paper presents two extensions of the WL algorithm to allow for testing on arbitrary graphs. One considers edge attributes, and the other tests the isomorphism on dynamic graphs. Additionally, we extend the WL-hierarchy by the attributed and dynamic WL tests and show that it is a partial order, which induces a lattice. In the future, this may allow for practical implications coming from lattice theory.
Siemon, Dominik ; Strohmann, Timo ; Khosrawi-Rad, Bijan ; de Vreede, Triparna ; Elshan, Edona ; Meyer, Michael:Why Do We Turn to Virtual Companions? A Text Mining Analysis of Replika Reviews.. In: Americas Conference on Information Systems (AMCIS). Minneapolis, Minnesota, USA, 2022
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Many people globally experience the feeling of loneliness and struggle with its consequences. A modern way to deal with this loneliness and lack of companionship is to use empathetic and emotional conversational agents. Often referred to as virtual companions, these agents can engage in human-like conversations with their users and build relationships with them through modern artificial intelligence technologies. One established service of such virtual companions is Replika, which we investigate in this study to explore what users expect to gain from long-term interactions with virtual companions and what they tend to talk about with them. Using a text mining approach and 119,831 reviews of the Replika service, we analyze users' sentiments, emotions, and topics. Our results show that users interact with virtual companions to cope with their loneliness and, especially, to address their mental well-being. Furthermore, Replika users have a joyful and beneficial experience during long-term interaction with such virtual companions.
Rietsche, Roman ; Ritz, Eva ; Janda, Julius ; Pfütze, Dominik:A Corpus for Suggestion Mining of German Peer Feedback.. In: Language Resources and Evaluation Conference (LREC). Marseille, France, 2022, pp. 5539–5547
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Peer feedback in online education becomes increasingly important to meet the demand for feedback in large scale classes, such as e.g. Massive Open Online Courses (MOOCs). However, students are often not experts in how to write helpful feedback to their fellow students. In this paper, we introduce a corpus compiled from university students’ peer feedback to be able to detect suggestions on how to improve the students’ work and therefore being able to capture peer feedback helpfulness. To the best of our knowledge, this corpus is the first student peer feedback corpus in German which additionally was labelled with a new annotation scheme. The corpus consists of more than 600 written feedback (about 7,500 sentences). The utilisation of the corpus is broadly ranged from Dependency Parsing to Sentiment Analysis to Suggestion Mining, etc. We applied the latter to empirically validate the utility of the new corpus. Suggestion Mining is the extraction of sentences that contain suggestions from unstructured text. In this paper, we present a new annotation scheme to label sentences for Suggestion Mining. Two independent annotators labelled the corpus and achieved an inter-annotator agreement of 0.71. With the help of an expert arbitrator a gold standard was created. An automatic classification using BERT achieved an accuracy of 75.3%.
Siemon, Dominik ; Elshan, Edona ; de Vreede, Triparna ; Oeste-Reiß, Sarah ; de Vreede, Gert Jan ; Ebel, Philipp:Examining the Antecedents of Creative Collaboration with an AI Teammate.. In: International Conference on Information Systems (ICIS). Copenhagen, Denmark, 2022
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With the advent of artificial intelligence (AI), individuals are increasingly teaming up with AI-based systems to enhance their creative collaborative performance. When working with AI-based systems, several aspects of team dynamics need to be considered, which raises the question how humans’ approach and perceive their new teammates. In an experimental setting, we investigate the influence of social presence in a group ideation process with an AI-based teammate and examine its effects on the motivation to contribute. Our results show a multi-mediation model in which social presence indirectly influences whether human team members are motivated to contribute to a team with AI-based teammates, which is mediated by willingness to depend and team-oriented commitment.
Schmitt, Anuschka ; Wambsganss, Thiemo ; Janson, Andreas:Designing for Conversational System Trustworthiness: The Impact of Model Transparency on Trust and Task Performance.. In: European Conference on Information Systems (ECIS). Timișoara, Romania, 2022
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Designing for system trustworthiness promises to address challenges of opaqueness and uncertainty introduced through Machine Learning (ML)-based systems by allowing users to understand and interpret systems’ underlying working mechanisms. However, empirical exploration of trustworthiness measures and their effectiveness is scarce and inconclusive. We investigated how varying model confidence (70% versus 90%) and making confidence levels transparent to the user (explanatory statement versus no explanatory statement) may influence perceptions of trust and performance in an information retrieval task assisted by a conversational system. In a field experiment with 104 users, our findings indicate that neither model confidence nor transparency seem to impact trust in the conversational system. However, users’ task performance is positively influenced by both transparency and trust in the system. While this study considers the complex interplay of system trustworthiness, trust, and subsequent behavioral outcomes, our results call into question the relation between system trustworthiness and user trust.
Beddar-Wiesing, Silvia ; D’Inverno, Giuseppe Alessio ; Graziani, Caterina ; Lachi, Veronica ; Moallemy-Oureh, Alice ; Scarselli, Franco ; Thomas, Josephine: Weisfeiler-Lehman goes Dynamic: An Analysis of the Expressive Power of Graph Neural Networks for Attributed and Dynamic Graphs. In: arXiv e-prints (2022), p. arXiv:2210.03990
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Graph Neural Networks (GNNs) are a large class of relational models for graph processing. Recent theoretical studies on the expressive power of GNNs have focused on two issues. On the one hand, it has been proven that GNNs are as powerful as the Weisfeiler-Lehman test (1-WL) in their ability to distinguish graphs. Moreover, it has been shown that the equivalence enforced by 1-WL equals unfolding equivalence. On the other hand, GNNs turned out to be universal approximators on graphs modulo the constraints enforced by 1-WL/unfolding equivalence. However, these results only apply to Static Undirected Homogeneous Graphs with node attributes. In contrast, real-life applications often involve a variety of graph properties, such as, e.g., dynamics or node and edge attributes. In this paper, we conduct a theoretical analysis of the expressive power of GNNs for these two graph types that are particularly of interest. Dynamic graphs are widely used in modern applications, and its theoretical analysis requires new approaches. The attributed type acts as a standard form for all graph types since it has been shown that all graph types can be transformed without loss to Static Undirected Homogeneous Graphs with attributes on nodes and edges (SAUHG). The study considers generic GNN models and proposes appropriate 1-WL tests for those domains. Then, the results on the expressive power of GNNs are extended by proving that GNNs have the same capability as the 1-WL test in distinguishing dynamic and attributed graphs, the 1-WL equivalence equals unfolding equivalence and that GNNs are universal approximators modulo 1-WL/unfolding equivalence. Moreover, the proof of the approximation capability holds for SAUHGs, which include most of those used in practical applications, and it is constructive in nature allowing to deduce hints on the architecture of GNNs that can achieve the desired accuracy.
Rouvroy, Antoinette ; Klumbytė, Goda:Algoritmic governmentality.. In: Braidotti, R. ; Jones, E. ; Klumbytė, G. (eds.): More Posthuman Glossary : Bloomsbury Publishing, 2022, pp. 10–11
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Choi, J.-E. ; Setz, T. ; Steinebach, M. ; Vogel, I.:Natural Language Processing (NLP) und der Datenschutz - Chancen und Risiken für den Schutz der Privatheit.. In: Demmler, D. ; Krupka, D. ; Federrath, H. (eds.): INFORMATIK 2022. Bonn : Gesellschaft für Informatik, 2022, pp. 651–664
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Ritz, Eva ; Wambsganss, Thiemo ; Rietsche, Roman ; Schmitt, Anuschka ; Oeste-Reiß, Sarah ; Leimeister, Jan Marco:Unleashing Process Mining for Education: Designing an IT-Tool for Students to Self-Monitor their Personal Learning Paths.. In: Internationale Tagung Wirtschaftsinformatik (WI). Nürnberg, Germany, 2022
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The ability of students to self-monitor their learning paths is in demand as never before due to the recent rise of online education formats, which entails less interaction with lecturers. Recent advantages in educational process mining (EPM) offer new opportunities to monitor students’ learning paths by processing log data captured by technology-mediated learning environments. However, current literature falls short on providing user-centered design principles for IT-tools which can monitor learning paths using EPM. Hence, in this paper, we examine how to design a self-monitoring tool that supports students to evaluate their learning paths. Based on theoretical insights of 66 papers and nine user interviews, we propose seven design principles for an IT-tool which facilitates self-monitoring for students based on EPM. Further, we evaluate the design principles with seven potential users. Our results demonstrate a promising approach to help students improve their self-efficacy in their individual learning process using EPM.
Rietsche, Roman ; Dremel, Christian ; Bosch, Samuel ; Steinacker, Léa ; Meckel, Miriam ; Leimeister, Jan Marco: Quantum computing. In: Electronic Markets vol. 32 (2022), Nr. 4, pp. 2525–2536
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Quantum computing promises to be the next disruptive technology, with numerous possible applications and implications for organizations and markets. Quantum computers exploit principles of quantum mechanics, such as superposition and entanglement, to represent data and perform operations on them. Both of these principles enable quantum computers to solve very specific, complex problems significantly faster than standard computers. Against this backdrop, this fundamental gives a brief overview of the three layers of a quantum computer: hardware, system software, and application layer. Furthermore, we introduce potential application areas of quantum computing and possible research directions for the field of information systems.
Rösch, Kevin ; Heidecker, Florian ; Truetsch, Julian ; Kowol, Kamil ; Schicktanz, Clemens ; Bieshaar, Maarten ; Sick, Bernhard ; Stiller, Christoph:Space, Time, and Interaction: A Taxonomy of Corner Cases in Trajectory Datasets for Automated Driving.. In: IEEE Symposium on Computational Intelligence in Vehicles and Transportation Systems (IEEE CIVTS), IEEE SSCI : IEEE, 2022, pp. 86–93
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Trajectory data analysis is an essential component for highly automated driving. Complex models developed with these data predict other road users’ movement and behavior patterns. Based on these predictions — and additional contextual information such as the course of the road, (traffic) rules, and interaction with other road users — the highly automated vehicle (HAV) must be able to reliably and safely perform the task assigned to it, e.g., moving from point A to B. Ideally, the HAV moves safely through its environment, just as we would expect a human driver to do. However, if unusual trajectories occur, so-called trajectory corner cases, a human driver can usually cope well, but an HAV can quickly get into trouble. In the definition of trajectory corner cases, which we provide in this work, we will consider the relevance of unusual trajectories with respect to the task at hand. Based on this, we will also present a taxonomy of different trajectory corner cases. The categorization of corner cases into the taxonomy will be shown with examples and is done by cause and required data sources. To illustrate the complexity between the machine learning (ML) model and the corner case cause, we present a general processing chain underlying the taxonomy.
Rietsche, Roman ; Caines, Andrew ; Schramm, Cornelius ; Pfütze, Dominik ; Buttery, Paula:The Specificity and Helpfulness of Peer-to-Peer Feedback in Higher Education.. In: Workshop on Innovative Use of NLP for Building Educational Applications (BEA). Seattle, Washington, USA : Association for Computational Linguistics, 2022, pp. 107–117
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With the growth of online learning through MOOCs and other educational applications, it has become increasingly difficult for course providers to offer personalized feedback to students. Therefore asking students to provide feedback to each other has become one way to support learning. This peer-to-peer feedback has become increasingly important whether in MOOCs to provide feedback to thousands of students or in large-scale classes at universities. One of the challenges when allowing peer-to-peer feedback is that the feedback should be perceived as helpful, and an import factor determining helpfulness is how specific the feedback is. However, in classes including thousands of students, instructors do not have the resources to check the specificity of every piece of feedback between students. Therefore, we present an automatic classification model to measure sentence specificity in written feedback. The model was trained and tested on student feedback texts written in German where sentences have been labelled as general or specific. We find that we can automatically classify the sentences with an accuracy of 76.7% using a conventional feature-based approach, whereas transfer learning with BERT for German gives a classification accuracy of 81.1%. However, the feature-based approach comes with lower computational costs and preserves human interpretability of the coefficients. In addition we show that specificity of sentences in feedback texts has a weak positive correlation with perceptions of helpfulness. This indicates that specificity is one of the ingredients of good feedback, and invites further investigation.
Cramar, L.:Beiträge zur Interaktionsgestaltung bei Überwachung und Steuerung industriell eingesetzter mobiler Roboter, Schriftenreihe Mensch-Maschine-Systemtechnik. vol. 3. Kassel : Kassel University Press, 2022
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Die Motivation, in der verfahrens- und prozesstechnischen Industrie mobile Roboter einzusetzen, sowohl zur Handhabung gefährlicher Gegenstände, z. B. von chemisch, biologisch oder radioaktiv kontaminiertem Material, als auch zur Entlastung des Menschen bei monotonen und vigilanzkritischen Tätigkeiten, hat in den vergangenen Jahrzehnten stark zugenommen. Durch die hohe Komplexität solcher Einsätze können die Robotersysteme allerdings nicht völlig autonom eingesetzt werden und erfordern eine Überwachung sowie bei Bedarf eine teleoperative Steuerung durch menschliche Operatoren, was ihnen einen semiautonomen Charakter verleiht. Die dazu erforderliche Überwachung sowie bei Bedarf Teleoperation mobiler Roboter erfolgt durch menschliche Operatoren aus der Leitwarte heraus, was für diese eine besondere Herausforderung darstellt: Neben der Planung des durchzuführenden Ansatzes, bei der alle Schritte und Besonderheiten bereits im Voraus zu planen sind, ist auch die Überwachung und Steuerung solcher Systeme mit besonderen Problemen und Schwierigkeiten behaftet. Um dem Zweck der Entlastung der Mitarbeiter gerecht zu werden, muss die Bedienung des Robotersystems entsprechend gestaltet sein. Da der Einsatz von Interaktionsmedien und -konzepten vor allem in sicherheitskritischen Bereichen einen noch innovativen Charakter trägt, muss besonders genau überprüft werden, ob die erwarteten Vorteile auch in diesem Kontext positiv bewertet werden können. Im Rahmen dieser Arbeit wurde anhand des Anwendungsfalls RoboGasInspector das Vorgehen zur Gestaltung einer gebrauchstauglichen Interaktion zur Überwachung und Steuerung der Inspektionsroboter und deren Einzelteile (bspw. Kamera und Roboterarm) nach dem Prinzip des menschzentrierten Gestaltungsansatzes vorgestellt. Den Schwerpunkt der Arbeit bildet dabei die evaluationsbasierte Ableitung konkreter Hinweise für die Gestaltung der Mensch-Roboter-Interaktion im ausgewählten Anwendungsfall. Welche Technologien in das Robotersystem integriert und zum erfolgreichen und sicheren Bedienen des Systems führen können, wurde anhand ausgewählter Beispiele im iterativen Gestaltungsprozess, von der Erhebung der Anforderungen über das Erarbeiten von Gestaltungslösungen sowie Evaluation dieser unter Laborbedingungen analysiert und diskutiert. Die Ableitung von Gestaltungsempfehlungen wurde anschließend exemplarisch vorgestellt und diskutiert.
Roßnagel, Alexander ; Bile, Tamer ; Geminn, Christian ; Hansen, M. ; Bieker, F. ; Karaboga, Murat ; Friedewald, Michael:On the Introduction of a Surveillance Calculus in Germany. Karlsruhe : Fraunhofer ISI, 2022. — Schriftenreihe Forum Privatheit
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Roßnagel, Alexander ; Geminn, Christian ; Hansen, Marit ; Karaboga, Murat ; Friedewald, Michael:Mehr Fortschritt wagen – durch Stärkung des Datenschutzes, Vorschläge zur Ausgestaltung des Koalitionsvertrags. Karlsruhe : Fraunhofer ISI, 2022. — Schriftenreihe Forum Privatheit und selbstbestimmtes Leben in der digitalen Welt
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Billert, Matthias Simon ; Weinert, Tim ; Thiel de Gafenco, Marian ; Janson, Andreas ; Klusmeyer, Jens ; Leimeister, Jan Marco: Vocational Training with Microlearning - How Low-Immersive 360-Degree Learning Environments Support Work-Process-Integrated Learning. In: IEEE Transactions on Learning Technologies vol. 15 (2022), Nr. 5, pp. 540–553
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In-company training is facing new challenges in preparing employees for the demands of digitalized and automated manufacturing. New training concepts like microlearning are necessary to support work-process-related learning. To handle the limitations of microlearning, we develop a 360-degree learning system to demonstrate a realistic work environment. Nonetheless, there is a lack of design knowledge supporting the motivation and performance of employees using the system. Based on a systematic literature review and semi-structured interviews, we have developed design requirements for interactive 360-degree learning environments. We used a workshop-based mixed-method approach with interviews, concept maps, and video analysis to evaluate the motivation and performance of precision mechanics within a prototypical work-process-oriented learning environment in an inter-company vocational training center. The results show a positive effect on learning outcomes and motivation. In addition, the ease of use and sense of presence while using the learning environment are rated as high. We contribute to theory by shedding new light on learners' motivation and performance within work-process-oriented interactive 360-degree learning environments. Furthermore, we offer guidelines for developing such interactive 360-degree learning environments.
Bile, Tamer ; Roßnagel, A. (ed.):Selbstverantwortung und Selbstregulierung nach der Datenschutz-Grundverordnung : Universität Kassel, 2022. — Online-Publikation
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Benner, Dennis ; Schöbel, Sofia ; Süess, Christoph ; Baechle, Vera ; Janson, Andreas:Level-Up your Learning - Introducing a Framework for Gamified Educational Conversational Agents.. In: International Conference on Wirtschaftsinformatik (WI), 2022
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Driven by circumstances like the global pandemic many learners and educators realize the importance and value of self-regulated digital learning. To better support self-regulated learning, conversational agents have become more relevant. Conversational agents can act as tutor or as learning mate for learners. Although conversational agents have potential to better support self-regulated learning processes, challenges exist requiring implications about how to make these interactions more engaging and supportive. This study discusses the value of gamified conversational learning chatbots that use game elements to engage learners to guide researchers and practitioners to design conversational agents that effectively motivate learners and provide self-regulated learning at the same time. Therefore, we propose a systematically developed framework for gamifying educational conversational agents and contribute to theory by consolidating several theories about games, digital learning, and conversational agents and support practitioners by providing implications about what to care about when gamifying conversational agents.
Roßnagel, A. ; Bile, T. ; Geminn, C. L. ; Nebel, M.:Neue Konzepte für den Grundrechtsschutz in der digitalen Welt.. In: Roßnagel, A. ; Friedewald, M. (eds.): Die Zukunft von Privatheit und Selbstbestimmung, Analysen und Empfehlungen zum Schutz der Grundrechte in der digitalen Welt : Springer, 2022, pp. 3–48
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Benner, Dennis ; Schöbel, Sofia ; Sueess, Christoph:Towards Gamified Conversational Agents for Self-Regulated Learning in Digital Education.. In: International Conference on Information Systems (ICIS). Copenhagen, Denmark, 2022
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Formal education like higher education oftentimes emphasized on strict non-digital setting. This approach can lead to issues during stressful times (e.g., Covid crisis) or when learners’ needs in general are not considered. Moreover, these times highlighted how important self-regulated learning is and how much this capability is lacking in our educational system. To address these issues, we follow an Action Design Research approach and develop a gamified conversational agent (CA) that considers the learners’ needs. We present our CA and conduct a first small-scale evaluation following a mixed-method approach. First results show that students universally liked a CA for self-regulated digital learning and many enjoyed the gamified experience which helped students to be motivated to learn. As next steps we will develop the next iteration of our CA and conduct a long-term field test at a university.
Schreiber, Jens ; Sick, Bernhard: Multi-Task Autoencoders and Transfer Learning for Day-Ahead Wind and Photovoltaic Power Forecasts. In: Energies vol. 15, MDPI (2022), Nr. 21, p. 8062
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Integrating new renewable energy resources requires robust and reliable forecasts to ensure a stable electrical grid and avoid blackouts. Sophisticated representation learning techniques, such as autoencoders, play an essential role, as they allow for the extraction of latent features to forecast the expected generated wind and photovoltaic power for the next seconds up to days. Thereby, autoencoders reduce the required training time and the time spent in manual feature engineering and often improve the forecast error. However, most current renewable energy forecasting research on autoencoders focuses on smaller forecast horizons for the following seconds and hours based on meteorological measurements. At the same time, larger forecast horizons, such as day-ahead power forecasts based on numerical weather predictions, are crucial for planning loads and demands within the electrical grid to prevent power failures. There is little evidence on the ability of autoencoders and their respective forecasting models to improve through multi-task learning and time series autoencoders for day-ahead power forecasts. We can close these gaps by proposing a multi-task learning autoencoder based on the recently introduced temporal convolution network. This approach reduces the number of trainable parameters by 38 for photovoltaic data and 202 for wind data while having the best reconstruction error compared to nine other representation learning techniques. At the same time, this model decreases the day-ahead forecast error up to 18.3% for photovoltaic parks and 1.5% for wind parks. We round off these results by analyzing the influences of the latent size and the number of layers to fine-tune the encoder for wind and photovoltaic power forecasts.
Benner, Dennis ; Schöbel, Sofia ; Janson, Andreas ; Leimeister, Jan Marco: How to Achieve Ethical Persuasive Design: A Review and Theoretical Propositions for Information Systems. In: AIS Transactions on Human-Computer Interaction (THCI) vol. 14 (2022), Nr. 4, pp. 548–577
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Persuasive system design (PSD) is an umbrella term for designs in information systems (IS) that can influence people’s attitude, behavior, or decision making for better or for worse. On the one hand, PSD can improve users’ engagement and motivation to change their attitude, behavior, or decision making in a favorable way, which can help them achieve a desired outcome and, thus, improve their wellbeing. On the other hand, PSD misuse can lead to unethical and undesirable outcomes, such as disclosing unnecessary information or agreeing to terms that do not favor users, which, in turn, can negatively impact their wellbeing. These powerful persuasive designs can involve concepts such as gamification, gamblification, and digital nudging, which all have become prominent in recent years and have been implemented successfully across different sectors, such as education, e-health, e-governance, e-finance, and digital privacy contexts. However, such persuasive influence on individuals raises ethical questions as PSD can impair users’ autonomy or persuade them towards a third party’s goals and, hence, lead to unethical decision-making processes and outcomes. In human-computer interaction, recent advances in artificial intelligence have made this topic particularly significant. These novel technologies allow one to influence the decisions that users make, to gather data, and to profile and persuade users into unethical outcomes. These unethical outcomes can lead to psychological and emotional damage to users. To understand the role that ethics play in persuasive system design, we conducted an exhaustive systematic literature analysis and 20 interviews to overview ethical considerations for persuasive system design. Furthermore, we derive potential propositions for more ethical PSD and shed light on potential research gaps.
Schöbel, Sofia ; Schomberg, Sabrina ; Barev, Torben Jan ; Grote, Thomas ; Janson, Andreas ; Hornung, Gerrit ; Leimeister, Jan Marco:Zum Datenschutz gestupst? Gestaltungsorientierte Entwicklung von Privacy Nudges vor dem Hintergrund ethischer und rechtlicher Leitlinien.. In: Friedewald, M. ; Kreutzer, M. ; Hansen, M. (eds.): Selbstbestimmung, Privatheit und Datenschutz, DuD-Fachbeiträge. Wiesbaden : Springer Vieweg, 2022 — ISBN 978-3-658-33305-8, pp. 369–388
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Die Digitalisierung verändert unsere Gesellschaft, die Art wie wir miteinander kommunizieren und wie wir arbeiten. Dabei birgt Digitalisierung nicht nur Vorteile, sondern führt auch dazu, dass jedes Individuum durch sein Agieren in der digitalen Welt Datenspuren hinterlässt. Diese Daten werden gesammelt, aggregiert und ausgewertet, und das vielfach, ohne dass sich Individuen dessen bewusst sind. Hier kann das sogenannte Privacy Nudging genutzt werden, durch das Nutzende „angestupst“ werden, um ihr Verhalten so zu verändern, dass sie ihre eigenen Daten besser schützen. Bei der Gestaltung von Nudging Konzepten gibt es zahlreiche rechtliche, ethische und soziotechnische Hürden, die es zu berücksichtigen gilt. Hierzu existieren bisher keine einheitlichen Richtlinien und Empfehlungen. Entsprechend präsentiert der Beitrag eine integrative soziotechnische Gestaltungsperspektive für digitale privacy Nudges, indem Technik, Ethik und Recht nicht mehr nur isoliert betrachtet werden.
Decke, Jens ; Schmeißing, Jörn ; Botache, Diego ; Bieshaar, Maarten ; Sick, Bernhard ; Gruhl, Christian:NDNET: A Unified Framework for Anomaly and Novelty Detection.. In: International Conference on Architecture of Computing Systems (ARCS) : Springer, 2022, pp. 197–210
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We introduce NDNET (https://novelty-detection.net/p/ndnet), an anomaly and novelty detection library that implements various detection algorithms adjusted for online processing of data streams. The intention of this library is threefold: 1) Make experimentation with different anomaly and novelty detection algorithms simple. 2) Support the development of new novelty detection approaches by providing the mCANDIES framework. 3) Provide fundamentals to analyze and evaluate novelty detection algorithms on data streams. The library is freely available and developed as open-source software.
Decke, Jens ; Engelhardt, Anna ; Rauch, Lukas ; Degener, Sebastian ; Sajjadifar, Seyedvahid ; Scharifi, Emad ; Steinhoff, Kurt ; Niendorf, Thomas ; et al.: Predicting flow stress behavior of an AA7075 alloy using machine learning methods. In: Crystals vol. 9, MDPI (2022), Nr. 12, pp. 1–19
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This work focuses on the prediction of hot deformation behavior of thermo-mechanically processed precipitation hardenable aluminum alloy AA7075. Data available are focusing on a novel hot forming process at different tool temperatures ranging from 24°C to 350°C to set different cooling rates after solution-heat-treatment. Isothermal uniaxial tensile tests in the temperature range from 200°C to 400°C and at strain rates ranging from 0.001 s^-1 to 0.1 s^-1 were carried out on four different material conditions. The present paper mainly focuses on a comparative study of modeling techniques based on Machine Learning (ML) and the well-known Zerilli-Armstrong model (Z-A) as an empirically based reference. Work focused on predicting single data points of curves that the model was trained on. Due to the novel way data were split with respect to training and testing data, it becomes possible to predict entire stress-strain curves which leads to a reduction in the number of required laboratory experiments, finally saving costs and time in future experiments. While all investigated ML methods showed a higher performance than the Z-A model, the extreme Gradient Boosting model (XGB) showed the superior results, i.e., highest error reduction of 91% with respect to the Mean Squared Error.
Benner, Dennis ; Schöbel, Sofia ; Janson, Andreas ; Leimeister, Jan Marco:Can you help me scale? A Systematic Analysis of Scaling Capabilities of Conversational Agents for Digital Services.. In: International Conference on Wirtschaftsinformatik (WI), 2022
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Today’s servitized and digitalized society has significant implications for the economic system as value creation increasingly shifts towards digital services. Organizations are increasingly relying of artificial intelligence, which enables them to operate with novel technological artifacts like conversational agents (CA). These human-like AI-driven artifacts open new possibilities and channels for service providers to scale up their business even further and to create a business value or even to make processes more efficient. While we witness the results of that each day, we do not fully understand how such CAs can contribute to scaling up a business. Therefore, we conduct an analysis of service research and popular CAs to determine the status quo and highlight opportunities for scaling services with CAs. We contribute to theory by clarifying the meaning of scalability in combination with CAs and support practitioners by providing an overview about how organizations successfully scale their CAs.
Bachmann, M. ; Acosta, L. H. ; Götz, J. ; Reinhardt, D. ; David, K.:Collision Avoidance for Vulnerable Road Users: Privacy versus Survival?. In: 5th International Workshop on Intelligent Transportation and Autonomous Vehicles Technologies (ITAVT 2022) in conjunction with IEEE/IFIP Network Operations and Management Symposium (NOMS 2022), 2022 — ISBN 978-1-6654-0601-7, pp. 1–6
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Bile, Tamer ; Friedewald, M. ; Roßnagel, Alexander ; Geminn, Christian ; Karaboga, M. ; Hansen, M. ; Bieker, F.: Zur Einführung einer Überwachungs-Gesamtrechnung. In: Datenschutz und Datensicherheit (2022), pp. 572–577. — Schriftenreihe Forum Privatheit
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Akmeikina, Elisabeth ; Eilers, Karen ; Li, Mahei Manhai ; Peters, Christoph:Empowerment Effects in Human-machine Collaboration - A Systematic Literature Review and Directions on Hybrid Intelligence Behavior Patterns.. In: Pacific Asia Conference on Information Systems (PACIS). Taipei/Sidney, 2022
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The potentials of artificial intelligence (AI) are manifold and their discussion has gained momentum in research and practice. In the same realm, AI also raises fears among employees of being replaced by AI technologies and, therefore, shying away from using it. Generally, employees want to be empowered to do their job and seek both more responsibility, as well as make their own decisions. In this paper, we conduct a systematic literature review that investigates the current state of the literature on the potential empowering effects of AI-based human-machine behavior. We thus sorted the literature into three behavioral categories: humans shape machine behavior, machines shape human behavior, human-machine co-behavior and crossed them with psychological empowerment dimensions of significance, competence, self-determination, and influence. Our results show corresponding literature streams and provide future research directions in a field that is likely to disrupt the way we work in the future.
Roßnagel, A. ; Friedewald, M. (eds.):Die Zukunft von Privatheit und Selbstbestimmung, Analysen und Empfehlungen zum Schutz der Grundrechte in der digitalen Welt : Springer, 2022
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Athanasiadou, Lila ; Klumbytė, Goda ; Rouvroy, Antoinette: Re-Imagining a ’We’ Beyond the Gathering of Reductions. Propositions for the Three Ecologies. In: FOOTPRINT vol. 16 (2022), Nr. 1, pp. 121–134
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In this article Lila Athanasiadou and Goda Klumbytė engage in a conversation with Antoinette Rouvroy to revisit Guattari’s "Three Ecologies" and discuss their dynamics in and for the digital age. While a lot of the discourses on algorithms and digital future invoke catastrophic imaginaries of totalizing control, this conversation works with a propositional format, teasing out affirmative politics by pointing to spaces of potentiality within the environmental, the social and the mental realm. Starting from the environmental ecology and thinking of data as a waste, Rouvroy discusses planetary exhaustion as the result of the depletion of natural resources, forced labour practices and the assumption that data hold the answers to the problems posed by global capital. Proposing a space for material experimentation, she speculates on the potential of emerging subjectivities that remain irreducible to data flows. Within social ecology, Rouvroy advocates for the urgency to center digital policy as the space in which the new forms of institutions emerge in order to reorient the power of computation towards the commons. Lastly, within the mental ecology, Rouvroy reconceptualizes the legal subject as a performance that operates within the proliferation of asignifying data signs, reimagining a “we” beyond the gathering of reductions.
David, Klaus ; Dobbins, Chelsea ; Okoshi, Tadashi ; Ohly, Sandra ; Peltonen, Ella: EmotionAware 2022: Sixth International Workshop on Emotion Awareness for Pervasive Computing Beyond Traditional Approaches - Welcome and Committees. In: 2022 IEEE International Conference on Pervasive Computing and Communications Workshops and other Affiliated Events, PerCom Workshops 2022. Los Alamitos, CA, USA, IEEE Computer Society (2022), p. i-ii
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Schöbel, Sofia ; Janson, Andreas ; Leimeister, Jan Marco: Gamifying Online Training in Management Education to Support Emotional Engagement and Problem-solving Skills. In: Journal of Management Education (JME) vol. 47 (2022), Nr. 2, pp. 166–203
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Online training to improve problem-solving skills has become increasingly important in management learning. In online environments, learners take a more active role which can lead to stressful situations and decreased motivation. Gamification can be applied to support learner motivation and emotionally boost engagement by using game-like elements in a non-game context. However, using gamification does not necessarily result in supporting positive learning outcomes. Our analysis sheds light on these aspects and evaluates the effects of points and badges on engagement and problem-solving outcomes. We used an experimental approach with a fully randomized pre-test/post-test design of a gamified online management training program with 68 participants. The results demonstrate that points and badges do not directly improve problem-solving skills but are mediated by emotional engagement to positively influence problem-solving skills. Additionally, satisfaction with the gamification learning process positively relates to emotional engagement. Thus, when creating online training programs, it is essential to consider how to engage students and to think about the design of the learning environment. By identifying the limitations of gamification elements, the study’s results can provide educators with information about the design implications of online training programs for management learning.
Simmert, Benedikt ; Peters, Christoph: Faster, Better, Happier – Internal Crowd Work as Form of Structural Empowerment for Employee Empowerment and Success. In: Die Unternehmung – Swiss Journal of Business Research and Practice vol. 76 (2022), Nr. 1, pp. 28–49
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ICW is gaining increasing importance as an innovative concept of digital work organization. This study examines ICW and its role as a structural empowerment tool driving the psychological empowerment of employees. This is done by means of a case study on a telecommunications company that has been successfully using ICW for more than ten years. Using a mixed-method approach, a model for an in-depth understanding of empowerment in ICW is exploratively developed based on qualitative data. Furthermore, organizational enablers in ICW are identified as important prerequisites and success factors. Additionally, the study shows how ICW as structural empowerment promotes psychological empowerment and can lead to higher speed, increased synergies, and higher employee satisfaction. A quantitative deep-dive provides additional figures on the structural empowerment mechanisms in ICW as well as on employee perceptions.
Schäfermeier, Bastian ; Hirth, Johannes ; Hanika, Tom: Research Topic Flows in Co-Authorship Networks. In: Scientometrics (2022)
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In scientometrics, scientific collaboration is often analyzed by means of co-authorships. An aspect which is often overlooked and more difficult to quantify is the flow of expertise between authors from different research topics, which is an important part of scientific progress. With the Topic Flow Network (TFN) we propose a graph structure for the analysis of research topic flows between scientific authors and their respective research fields. Based on a multi-graph and a topic model, our proposed network structure accounts for intratopic as well as intertopic flows. Our method requires for the construction of a TFN solely a corpus of publications (i.e., author and abstract information). From this, research topics are discovered automatically through non-negative matrix factorization. The thereof derived TFN allows for the application of social network analysis techniques, such as common metrics and community detection. Most importantly, it allows for the analysis of intertopic flows on a large, macroscopic scale, i.e., between research topic, as well as on a microscopic scale, i.e., between certain sets of authors. We demonstrate the utility of TFNs by applying our method to two comprehensive corpora of altogether 20 Mio. publications spanning more than 60 years of research in the fields computer science and mathematics. Our results give evidence that TFNs are suitable, e.g., for the analysis of topical communities, the discovery of important authors in different fields, and, most notably, the analysis of intertopic flows, i.e., the transfer of topical expertise. Besides that, our method opens new directions for future research, such as the investigation of influence relationships between research fields.

2021[ to top ]

Felde, Maximilian ; Stumme, Gerd:Triadic Exploration and Exploration with Multiple Experts.. In: Braud, A. ; Buzmakov, A. ; Hanika, T. ; Le Ber, F. (eds.): Formal Concept Analysis. Cham : Springer International Publishing, 2021 — ISBN 978-3-030-77867-5, pp. 175–191
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Formal Concept Analysis (FCA) provides a method called attribute exploration which helps a domain expert discover structural dependencies in knowledge domains that can be represented by a formal context (a cross table of objects and attributes). Triadic Concept Analysis is an extension of FCA that incorporates the notion of conditions. Many extensions and variants of attribute exploration have been studied but only few attempts at incorporating multiple experts have been made. In this paper we present triadic exploration based on Triadic Concept Analysis to explore conditional attribute implications in a triadic domain. We then adapt this approach to formulate attribute exploration with multiple experts that have different views on a domain.
Simmert, Benedikt ; Peters, Christoph ; Leimeister, Jan Marco: Interne Crowd Work als innovative Form der Arbeitsorganisation. In: Service today : das Magazin für Entscheider aus Service, Marketing, Logistik und Technik vol. 35 (2021), Nr. 1, pp. 12–16
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Geminn, Christian ; Bile, Tamer: Erfolgreicher Abschluss des Forschungsprojekts ‚Forum Privatheit: Selbstbestimmtes Leben in einer digitalen Welt. In: ZD-Aktuell (2021), p. 05139
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Geminn, Christian ; Erenli, Kai ; Pfeiffer, Leon: Legal Challenges of an Open Web Index. In: International Cybersecurity Law Review (2021), pp. 183–194
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Geminn, Christian ; Antonio, José ; Parrilla, Castillo:Position Paper on the proposals for a Digital Services Act, a Digital Markets Act and a Data Governance Act : Open Search Foundation, 2021
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Geminn, Christian ; Ferrarese, Barbara ; Friedewald, Michael ; Bile, Tamer: Forum Privatheit: Renommiertes Forschungsprojekt wird verlängert und deutlich ausgebaut. In: ZD-Aktuell (2021), p. 05168
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Geminn, Christian: Rechtsfragen eines offenen Web-Index – Freiheitsfördernde Infrastrukturen für die digitale Gesellschaft. In: MultiMedia und Recht (2021), pp. 16–19
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Geminn, Christian:Kommentierung von Art. 24 (Videoüberwachung) und 27 (Staatliche und kommunale Auszeichnungen und Ehrungen) BayDSG.. In: Schröder, M. (ed.): Bayerisches Datenschutzgesetz. Baden-Baden : Nomos, 2021
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Johannes, P.: China: Zweiter Entwurf eines Datenschutzgesetzes veröffentlicht. In: ZD-Aktuell (2021), p. 05219
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Faulhaber, A. K. ; Schmidt, L.:Perception of Peripheral Visual Cues in Augmented Reality During Walking: A Pilot Study.. In: Gesellschaft für Arbeitswissenschaft e. V. (ed.): Arbeit HUMAINE gestalten: 67. Kongress der Gesellschaft für Arbeitswissenschaft (Bochum 2021). Dortmund : GfA-Press, 2021, pp. 1–6 (B.5.6)
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Augmented Reality (AR) glasses may be used in diverse mobile and multitasking contexts, for example, while walking. In such contexts, it is particularly important to display information without obscuring essential areas of central vision. Information can, thus, be presented to the peripheral vision. The objective of the present study was to investigate how peripheral visual cues should be displayed in AR to achieve efficient perception during walking. We conducted a pilot study and tested three different versions of directional cues presented while walking or standing still: simply popping up, moving towards the indicated direction, or changing color. The results indicated that the perception of peripheral cues in AR is generally less efficient while walking than standing still. Within the walking condition, the color-changing cue was perceived best.
Geminn, Christian ; Johannes, P.:Kommentierung von § 45 (Datenverarbeitung zu wissenschaftlichen oder historischen Forschungszwecken, archivarischen oder statistischen Zwecken) HDSIG.. In: Roßnagel, A. (ed.): Hessisches Datenschutz- und Informationsfreiheitsgesetz. Baden-Baden : Nomos, 2021
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Geminn, Christian ; Johannes, P.: LG Bonn: Authentifizierung im telefonischen Kontakt mit Kundencentern – 1&1. In: MultiMedia und Recht (2021), pp. 173–177
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Geminn, Christian ; Johannes, P.: Abwägung zur Sicherheit der Datenverarbeitung durch technische und organisatorische Maßnahmen – Zur Schwierigkeit der Bestimmung des ausreichenden datenschutzrechtlichen Schutzniveaus. In: InTeR – Zeitschrift für Innovations- und Technikrecht (2021), pp. 140–146
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Faulhaber, A. K. ; Ni, I. ; Schmidt, L.:The Effect of Explanations on Trust in an Assistance System for Public Transport Users and the Role of the Propensity to Trust.. In: Schneegass, S. ; Pfleging, B. ; Kern, D. (eds.): Mensch und Computer 2021 - Tagungsband (Ingolstadt 2021). New York : ACM, 2021, pp. 303–310
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The present study aimed to investigate whether explanations increase trust in an assistance system. Moreover, we wanted to take the role of the individual propensity to trust in technology into account. We conducted an empirical study in a virtual reality environment where 40 participants interacted with a specific assistance system for public transport users. The study was in a 2x2 mixed design with the within-subject factor assistance system feature (trip planner and connection request) and the between-subject factor explanation (with or without). We measured trust as explicit trust via a questionnaire and as implicit trust via an operationalization of the participants’ behavior. The results showed that trust propensity predicted explicit trust, and explanations increased explicit trust significantly. This was not the case for implicit trust, though, suggesting that explicit and implicit trust do not necessarily coincide. In conclusion, our results complement the literature on explainable artificial intelligence and trust in automation and provide topics for future research regarding the effect of explanations on trust in assistance systems or other technologies.
Britton, Loren ; Klumbytė, Goda ; Draude, Claude ; Paehr, Isabel:Getting a Handle on Critical Pedagogies: Notes on Interdependencies and Care in Interdisciplinary Technoscience.. In: Büssers, J. ; Faulhaber, A. ; Raboldt, M. ; Wiesner, R. (eds.): Gendered Configurations of Humans and Machines, L’AGENda. vol. 8 : Barbara Budrich, 2021 — ISBN 978-3-8474-2494-9, pp. 265–281
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Hornung, Gerrit:Kommentierung von § 20 HDSIG.. In: Roßnagel, A. (ed.): Hessisches Datenschutz- und Informationsfreiheitsgesetz. Baden-Baden : Nomos Verlagsgesellschaft, 2021
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Geminn, Christian ; Leon, Francis ; Karl-Raban, Herder: Die Informationspräsentation im Datenschutzrecht – Auf der Suche nach Lösungen. In: ZD-Aktuell (2021), Nr. 14, p. 05335
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Klee, Sven ; Janson, Andreas ; Leimeister, Jan Marco: How Data Analytics Competencies Can Foster Business Value – A Systematic Review and Way Forward. In: Information Systems Management (ISM) vol. 38 (2021), Nr. 3, pp. 200–217
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Several authors have illustrated the benefits of data in organizations. For realizing benefits, we see two major challenges for organizations. First, there are necessary investments, which have to be justified. Second, adequate data analytics competencies can be seen as enablers for realizing benefits. We aim to support organizations by showing relevant competencies and achievable business values. We present theoretical propositions and a research agenda on how to move the field of data analytics competencies forward.
Ohly, Sandra ; Draude, Claude:The Impact of Gender in Flexible Work: From Highlighting Gender Differences to Understanding Gender Roles in Use of Information and Communication Technology.. In: Korunka, C. (ed.): Flexible Working Practices and Approaches: Psychological and Social Implications. Cham : Springer International Publishing, 2021 — ISBN 978-3-030-74128-0, pp. 79–92
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ICT can contribute to flexible working, but the question arises if women and men differ in the way they use ICT. Re-analyzing data collected in two diary studies comparing men and women on the length of ICT use, the type of positive and negative events in relation to ICT during the day, on the way home and in the evening, revealed little to no gender differences. We conclude that the occupational role overrides potential differences that might occur due to different gender roles and discuss future research opportunities in this area. For example, the question arises against the background of the gendered division of labor if occupational role and other factors determine ICT use, calling for an intersectional analysis.
Ohly, Sandra ; Schneijderberg, Christian: German professors’ motivation to act as peer reviewers in accreditation and evaluation procedures. In: Minerva vol. 59 (2021), pp. 217–236
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Ohly, Sandra ; Venz, Laura:Affective Events and Proactivity.. In: Peng, K. Z. ; Wu, C.-H. (eds.): Emotion and Proactivity at Work: Prospects and Dialogues : Bristol University Press, 2021, pp. 101–128
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Schomberg, Sabrina: EU-Kommission: Entwurf eines Digital Markets Act. In: ZD-Aktuell (2021), p. 05042
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Geminn, Christian: Anonymisierung zur Förderung Künstlicher Intelligenz (2021)
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Barev, Torben Jan ; Schwede, Melanie ; Janson, Andreas:The Dark Side of Privacy Nudging – An Experimental Study in the Context of a Digital Work Environment.. In: Hawaii International Conference on System Sciences (HICSS), 2021
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Privacy nudging is a promising method to get users to disclose less personal information in digital work environments. In this work, we tested two digital privacy nudges: a social and a framing nudge. To empirically measure the effectiveness of the two privacy nudges, we developed an online experiment. We evaluated 223 data sets with the partial least squares structural equation modeling (PLS-SEM) and a two-factorial Analysis of Variance (ANOVA). The results indicate that privacy nudges negatively influence information disclosure behavior. The privacy framing nudge has a direct and indirect effect, while the privacy social nudge has only an indirect effect on the information disclosure behavior. Individuals exposed to the privacy nudges perceived the stimulus as threat. Importantly, both nudges spark negative feelings. With this research, we are contributing to the discussion of what drives privacy nudge effectiveness and influences information disclosure behavior in digital work environments.
Roßnagel, A. (ed.):Hessisches Datenschutz-und Informationsfreiheitsgesetz : Nomos, 2021
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Kropf, Jonathan:Zurück in die Zukunft der Künstlichen Intelligenz. Elemente einer digitalen Anthropologie am Beispiel Spotifys.. In: Beck, W. ; Nord, I. ; Valentin, J. (eds.): Theologie und Digitalität. Ein Kompendium. Freiburg im Breisgau : Herder, 2021 — ISBN 978-3-451-38849-1, pp. 50–72
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Oeste-Reiß, Sarah ; Bittner, Eva ; Cvetkovic, Izabel ; Günther, Andreas ; Leimeister, Jan Marco ; Memmert, Lucas ; Ott, Anja ; Sick, Bernhard ; et al.: Hybride Wissensarbeit. In: Informatik Spektrum vol. 44 (2021), Nr. 3, pp. 148–152
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Aufgrund der Fortschritte im Bereich der künstlichen Intelligenz (KI) ergeben sich neue Gestaltungsmöglichkeiten zur Reorganisation von Wissensarbeit an der Schnittstelle von Menschen und Maschine. Durch die Verschmelzung von menschlicher und künstlicher Intelligenz können komplementäre Stärken zum Lösen von Arbeitsaufgaben gebündelt werden. Neuartige Wissensarbeitssysteme sind erforderlich, die Wissensarbeitende sowohl bei der Ausübung von Routineaufgaben als auch Nichtroutineaufgaben unterstützen. Der Schlagwortartikel umreißt die Grundlagen von Wissensarbeit und arbeitet die Charakteristika von Routineaufgaben und Nichtroutineaufgaben innerhalb von Arbeitsprozessen auf. Es werden Grenzen klassischer IT-gestützter Wissensarbeitssysteme als Werkzeuge umrissen, die Wissensarbeitende im Arbeitsprozess unterstützen. Aufbauend darauf diskutiert der Artikel, dass technologische Fortschritte eine arbeitsprozessintegrierte und personalisierte Unterstützung von Wissensarbeitenden erlauben. Dazu verweist der Artikel auf die Charakteristika von kollaborativ interaktiv lernenden Systemen. Darauf aufbauend werden Hybride Wissensarbeitssysteme vorgestellt, die sowohl das KI-unterstützte menschliche Lernen als auch das Mensch-unterstützte maschinelle Lernen unterstützen. In diesem Zusammenhang beschreibt der Artikel definitorische Grundlagen von menschlicher, künstlicher und hybrider Intelligenz, stellt drei Archetypen von Mensch-Maschine-Aufgaben innerhalb von hybriden Wissensarbeitssystemen vor und umreißt drei Gestaltungsdimensionen solcher Systeme. Mittels eines Praxisbeispiels zum kollaborativen Schreiben von Journalist*innen beschreibt der Artikel exemplarisch die hybride Wissensarbeit. Der Artikel schließt mit einem Ausblick auf zukünftige Forschungsbedarfe.
Johannes, P.: Quick Reference Guide to eIDAS-Regulation. In: ZD-Aktuell (2021), Nr. 910, p. 05268
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Ochs, Carsten: Lost in Transformation? Einige Hypothesen zur Systematik der Strukturtransformation informationeller Privatheit vom 18. Jh. bis heute. In: Passau, U. (ed.) Abschlussmagazin des DFG-Graduiertenkollegs 1681/2 "Privatheit & Digitalisierung (2021), pp. 48–54
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Ochs, Carsten: Kode als Kultur. Zur praktischen Strukturiertheit und Strukturierung von Praktiken durch Kode. In: Kuckuck. Notizen zur Alltagskultur vol. Code (2021), Nr. 1/21
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Ochs, Carsten: Digital Infrastructures suck: Zur digitalen Absorption des Sozialen. In: Hamburger Journal für Kulturanthropologie (HJK) vol. 13 (2021), pp. 127–138
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Braun, T. ; Gehrke, M. ; Hanika, T. ; Hernandez, N. (eds.):Graph-Based Representation and Reasoning - 26th International Conference on Conceptual Structures, ICCS 2021, Virtual Event, September 20-22, 2021, Proceedings, Lecture Notes in Computer Science. vol. 12879 : Springer, 2021 — ISBN 978-3-030-86981-6
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Funk, J. ; Schmidt, L.:Vergleichende Evaluation von Augmented-Reality-Anwendungen zur Ergänzung von Lehrbüchern in der Berufsausbildung.. In: Gesellschaft für Arbeitswissenschaft e. V. (ed.): Arbeit HUMAINE gestalten: 67. Kongress der Gesellschaft für Arbeitswissenschaft (Bochum 2021). Dortmund : GfA-Press, 2021, pp. 1–6 (B.2.1)
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In der hier vorgestellten Laborstudie wurden zwei Arten markerbasierter Augmented-Reality-Ergänzungen zu einem Lehrbuch mit einer konventionellen Ergänzung in Papierform verglichen. Hierbei wurden drei Unterthemen aus der Ausbildung zum Kraftfahrzeugmechatroniker ausbalanciert um je eine Art der Zusatzinformation ergänzt. Dabei wurde der Lernerfolg mit Multiple-Choice-Aufgaben kontrolliert sowie die Gebrauchstauglichkeit (SUS), die Beanspruchung (NASA-rTLX), die räumliche Vorstellung (RV) und das Nutzererlebnis (UEQ) mit Fragebögen im Within-Subject Design (N = 24) erhoben. Die Ergebnisse zeigen ein höheres Nutzererlebnis und eine bessere räumliche Vorstellung bei Verwendung der AR im Vergleich zur konventionellen Ergänzung bei jeweils vergleichbarer niedriger Beanspruchung, hoher Gebrauchstauglichkeit sowie Lernleistung.
Funk, J. ; Schmidt, L.: Evaluation of an Augmented Reality Instruction for a Complex Assembly Task: Comparison of a Smartphone-Based Augmented Reality Instruction with a Conventional Paper Instruction for the Teach-in Phase in Manual Assembly. In: i-com - Zeitschrift für interaktive und kooperative Medien vol. 20 (2021), Nr. 1, pp. 63–72
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This study compares the use of a marker-based AR instruction with a paper instruction commonly used in manual assembly. Hypotheses were tested as to whether the instruction type affects assembly time, number of errors, usability, and employee strain. Instead of student participants and artificial assembly tasks (e. g. Lego assemblies), the study was conducted with 16 trainees in a real workplace for the assembly of emergency door release handles in rail vehicles. Five assembly runs were performed. Assembly times and assembly errors were determined from recorded videos. Usability (SUS) and strain (NASA-TLX) were recorded with questionnaires. After a slower assembly at the beginning, the AR group assembled significantly faster in the fifth run. The comparable number of errors, usability and strain make marker-based AR applications interesting for knowledge transfer in manual assembly, especially due to the easy entrance and low costs.
Schneegans, Jan ; Eilbrecht, Jan ; Zernetsch, Stefan ; Bieshaar, Maarten ; Doll, Konrad ; Stursberg, Olaf ; Sick, Bernhard:Probabilistic VRU Trajectory Forecasting for Model-Predictive Planning -- A Case Study: Overtaking Cyclists.. In: Workshop From Benchmarking Behavior Prediction to Socially Compatible Behavior Generation in Autonomous Driving, IV, 2021. — (accepted)
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This work considers (deep) artiﬁcial feed-forward neural networks as parametric approximators in optimal control of discrete-time switched linear systems with controlled switching. The proposed approach is based on approximate dynamic programming and allows the fast computation of (sub-)optimal discrete and continuous control inputs, either by approximating the optimal cost-to-go functions or by approximating the optimal discrete and continuous input policies. An important property of the approach is the satisfaction of polytopic state and input constraints, which is crucial for ensuring safety, as required in many control applications. A numeric example is provided for illustration and evaluation of the approaches.
Hornung, Gerrit. ; Schindler, Stephan: Datenschutz bei der biometrischen Gesichtserkennung. Künstliche Intelligenz und Mustererkennung als Herausforderung für das Recht, Datenschutz und Datensicherheit. In: Schwerpunkt (2021), pp. 515–521
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Roßnagel, Alexander ; Geminn, Christian: Vertrauen in Anonymisierung – Regulierung der Anonymisierung zur Förderung Künstlicher Intelligenz. In: Zeitschrift für Datenschutz (2021), pp. 487–490
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Kropf, Jonathan:Changing infrastructures of musical taste formation?. In: Bachleitner, N. ; Werner, J. (eds.): Popular Music and the Poetics of Self in Fiction. Leiden/Boston : Brill, 2021 — ISBN 978-90-04-50069-3, pp. 82–96
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Schneegans, Jan ; Bieshaar, Maarten ; Heidecker, Florian ; Sick, Bernhard:Intelligent and Interactive Video Annotation for Instance Segmentation using Siamese Neural Networks.. In: Workshop on Integrated Artificial Intelligence in Data Science, ICPR. Milan, Italy : IEEE, 2021, pp. 375–389
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Braud, A. ; Buzmakov, A. ; Hanika, T. ; Ber, F. L. (eds.):Formal Concept Analysis - 16th International Conference, ICFCA 2021, Strasbourg, France, June 29 - July 2, 2021, Proceedings, Lecture Notes in Computer Science. vol. 12733 : Springer, 2021 — ISBN 978-3-030-77866-8
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Geminn, Christian: Datenschutz bei Sprachassistenten – Herausforderungen heute und morgen. In: Datenschutz und Datensicherheit (2021), pp. 509–514
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Johannes, P. ; Geminn, Christian: Abwägung zur Sicherheit der Datenverarbeitung durch technische und organisatorische Maßnahmen. In: InTeR – Zeitschrift für Innovations- und Technikrecht (2021), pp. 140–146
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Johannes, P. ; Geminn, Christian: Die Beauftragung externer Gutachter durch die Medizinischen Dienste. In: NZS (2021)
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Barev, Torben Jan ; Schöbel, Sofia ; Janson, Andreas ; Leimeister, Jan Marco:DELEN – A Process Model for the Systematic Development of Legitimate Digital Nudges.. In: Chandra Kruse, L. ; Seidel, S. ; Hausvik, G. I. (eds.): International Conference on Design Science Research in Information Systems and Technology (DESRIST). vol. 12807. Cham : Springer, 2021 — ISBN 978-3-030-82404-4, pp. 299–312
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Digital nudging is a promising approach from behavioral economics. In deci-sions where individuals tend to struggle, nudges can support users of digital systems by aligning their behavior with their preferences. Despite their wide use, most digital nudges are designed to support the intended behavior from the perspective of a company while neglecting potential legal, ethical, or individual constraints or preferences. With modern technologies such as artificial intelli-gence or big data, these issues multiply and with the increasing effectiveness of digital nudges and use of new technologies, this has become even more critical. Thus, in this paper we follow a Design Science Research approach to develop a process model for the systematic development of legitimate nudges (DELEN). Legitimacy requires that dealings between different entities shall be fair. Unlike other models, we set normative boundaries derived from literature, expert in-terviews, and target group segmentation as integral elements. Target group seg-mentation increases nudge effectiveness and avoids unnecessary burdens for other individuals. By doing so, the DELEN process model paves the way for legitimate and effective digital nudges.
Geminn, C.:Deus ex machina? – Grundrechte und Digitalisierung. Habilitationsschrift : Universität Kassel, 2021
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Huang, Zhixin ; He, Yujiang ; Vogt, Stephan ; Sick, Bernhard:Uncertainty and Utility Sampling with Pre-Clustering.. In: Workshop on Interactive Adaptive Learning (IAL), ECML PKDD, 2021. — (accepted)
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Geminn, Christian: Kanada: Digital Charter Implementation Act. In: Zeitschrift für Datenschutz (2021), p. XVII-XVIII
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Geminn, Christian: Die Regulierung Künstlicher Intelligenz – Anmerkungen zum Entwurf eines Artificial Intelligence Act. In: Zeitschrift für Datenschutz (2021), pp. 354–359
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Geminn, Christian: Fairness und Transparenz im Datenschutzrecht. In: ZD-Aktuell (2021), Nr. 20, p. 05557
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Klumbyte, Goda ; Draude, Claude ; Taylor, Alex:Critical Tools for Machine Learning: Situating, Figuring, Diffracting, Fabulating Machine Learning Systems Design.. In: CHItaly 2021: 14th Biannual Conference of the Italian SIGCHI Chapter, CHItaly ’21. Bolzano, Italy : Association for Computing Machinery, 2021 — ISBN 9781450389778
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This workshop draws on feminist and other critical methodologies to construct interdisciplinary interventions in the design of machine learning systems. Theoretical concepts of “figuration”, “situating/situated knowledge”, “critical fabulation/speculation,” and “diffraction” are explored through hands-on experimentation to imagine and design machine learning systems in a more situated, inclusive, contextualize and accountable way. Through this “theory turned practice” approach the workshop aims to address systemic socio-cultural biases and develop more socially responsible frameworks of design. The workshop provides space for building a network for future research on interdisciplinary machine learning systems design.
Bretschneider, Ulrich:Exploring the Impact of Crowd Members’ Motivation on Idea Quality in Online Innovation Communities.. In: Annual Meeting of the Academy of Management (AOM), 2021
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Since many years, several firms host Virtual Idea Communities (VIC), in which the crowd focuses on voluntarily developing ideas for new product development (NPD). Both, scholars and practitioners share a strong interest in understanding the factors that enhance crowd members’ individual ideation outcome, meaning the quality of ideas, since the value of user ideas is not only essential for the survival of a VIC, but it also directly affects the innovation effects of firm’s NPD. Although there exist first insights on what influences idea quality, empirical studies that provide evidence of which forms of crowd members motivations are positively linked to higher ideation outcome are neglected. In this research, we build a theoretical model explaining which motives of crowd members for engaging in ideation have a positive impact on the quality of ideas they developed. To test our theory, we employed empirical data from users of the VIC by the software manufacturer SAP. For the first time, we found that crowd members of VIC are motivated to send capability signals through their ideas and thus be more creative. Further, crowd members with higher levels of fun and learning motivation produce ideas of higher quality, whereas this association depends on their level of flow experience. Our empirical results provide important contributions to IS research and practice. On the basis of our findings it is possible to design socio-technical artefacts for VICs that stimulate users’ capability-, fun- and learning motives and in turn will lead to ideas of higher quality.
Botache, Diego ; Bethke, Florian ; Hardieck, Martin ; Bieshaar, Maarten ; Brabetz, Ludwig ; Ayeb, Mohamed ; Zipf, Peter ; Sick, Bernhard:Towards Highly Automated Machine-Learning-Empowered Monitoring of Motor Test Stands.. In: IEEE International Conference on Autonomic Computing and Self-Organizing Systems (ACSOS). Washington, DC, USA : IEEE, 2021, pp. 120–130
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Ochs, Carsten ; Büttner, Barbara:Profilierungsdynamiken: eine ethnographische Bestandsaufnahme der datafizierten Moderne.. In: Berger, F. X. ; Deremetz, A. ; Hennig, M. ; Michell, A. (eds.): Autonomie und Verantwortung in digitalen Kulturen: Privatheit im Geflecht von Recht, Medien und Gesellschaft, Philosophische Praxis. vol. 4. Baden-Baden : Academia/Nomos, 2021 — ISBN 978-3-89665-936-1, pp. 287–315
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Frey, Philipp ; Schaupp, Simon ; Wenten, Klara-Aylin: Towards Emancipatory Technology Studies. In: Nanoethics vol. 15 (2021), pp. 19–27
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Geminn, Christian:Kommentierung von § 24 (Datenverarbeitung zu wissenschaftlichen oder historischen Forschungszwecken und zu statistischen Zwecken), § 28a (Datenverarbeitung bei öffentlichen Auszeichnungen und Ehrungen), § 28b (Datenverarbeitung in Gnadenverfahren) und §§ 80 bis 89 (Informationsfreiheit) HDSIG.. In: Roßnagel, A. (ed.): Hessisches Datenschutz- und Informationsfreiheitsgesetz. Baden-Baden : Nomos, 2021
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Geminn, Christian ; Szczuka, Jessica ; Artelt, André ; Hammer, Barbara ; Manzeschke, Arne ; Roßnagel, Alexander ; Slawik, Pauline ; Strathmann, Clara ; et al.:Können Kinder aufgeklärte Nutzer*innen von Sprachassistenten sein? – Rechtliche, psychologische, ethische und informatische Perspektiven.. In: . vol. Schriftenreihe KI-basierte Sprachassistenten im Alltag. Universität Duisburg-Essen, 2021, p. 22
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Müller, Johannes: Pegasus und Smartphone: Formatierte Freiheit. In: ZD-Aktuell (2021), p. 05457
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Schmitt, Anuschka ; Zierau, Naim ; Janson, Andreas ; Leimeister, Jan Marco:Voice as a Contemporary Frontier of Interaction Design.. In: European Conference on Information Systems (ECIS), 2021
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Voice assistants’ increasingly nuanced and natural communication bears new opportunities for user experiences and task automation, while challenging existing patterns of human-computer interaction. A fragmented research field, as well as constant technological advancements, impede a common apprehension of prevalent design features of voice-based interfaces. As part of this study, 86 papers across domains are systematically identified and analysed to arrive at a common understanding of voice assistants. The review highlights perceptual differences to other human-computer interfaces and points out relevant auditory cues. Key findings regarding those cues’ impact on user perception and behaviour are discussed along with the three design strategies 1) personification, 2) individualization and 3) contextualization. Avenues for future research are lastly deducted. Our results provide relevant opportunities to researchers and designers alike to advance the design and deployment of voice assistants.
Schindler, S.:Biometrische Videoüberwachung: Zur Zulässigkeit biometrischer Gesichtserkennung in Verbindung mit Videoüberwachung zur Bekämpfung von Straftaten, Elektronische Rechtsverkehr : Nomos Verlagsgesellschaft, 2021 — ISBN 9783848771134
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Schindler, Stephan: Neues vom NetzDG. In: ZD-Aktuell (2021), p. 05097
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Schindler, Stephan: EU-Kommission: Verordnungsentwurf zur Regulierung von KI - Das Ende polizeilicher Gesichtserkennung im öffentlichen Raum?. In: ZD-Aktuell (2021), p. 05221
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Benner, Dennis ; Schöbel, Sofia ; Janson, Andreas:It is only for your own good, or is it? Ethical Considerations for Designing Ethically Conscious Persuasive Information Systems.. In: Americas Conference on Information Systems (AMCIS). Montreal, Kanada : Association for Information Systems, 2021
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Persuasive designs, including gamification and digital nudging, have become well renowned during the last years and have been implemented successfully across different sectors including education, e-health, e-governance, e-finance and general information systems. In this regard, persuasive design can support desirable changes in attitude and behavior of users in order to achieve their own goals. However, such persuasive influence on individuals raises ethical questions as persuasive designs can impair the autonomy of users or persuade the user towards goals of a third party and hence lead to unethical decision-making processes. In human-computer interaction this is especially significant with the advent of advanced artificial intelligence that can emulate human behavior and thus bring new dynamics into play. Therefore, we conduct a systematic literature analysis with the goal to compile an overview of ethical considerations for persuasive system design, derive potential guidelines for ethical persuasive designs and shed light on potential research gaps.
Heidecker, Florian ; Hannan, Abdul ; Bieshaar, Maarten ; Sick, Bernhard:Towards Corner Case Detection by Modeling the Uncertainty of Instance Segmentation Networks.. In: Workshop on Integrated Artificial Intelligence in Data Science, ICPR. Milan, Italy : IEEE, 2021, pp. 361–374
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Heidecker, Florian ; Gruhl, Christian ; Sick, Bernhard:Novelty based Driver Identification on RR Intervals from ECG Data.. In: Workshop on Integrated Artificial Intelligence in Data Science, ICPR. Milan, Italy : IEEE, 2021, pp. 407–421
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Benner, Dennis ; Schöbel, Sofia ; Janson, Andreas:Exploring the State-of-the-Art of Persuasive Design for Smart Personal Assistants.. In: International Conference on Wirtschaftsinformatik (WI). Duisburg-Essen, Germany, 2021
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Driven by technological advances, smart personal assistants (SPA) have gained importance in human-computer interaction. SPAs can influence user behavior and persuade them towards an outcome. However, users often lack motivated to interact with SPAs. One way to support this interaction is persuasive system design; considering concepts as gamification and/or digital nudging. Although SPA research has increased recently, there is still no shared knowledge about persuasive designs. Therefore, we aim to identify the current state-of-the-art for persuasive SPA design to understand how interactions and designs can be improved referring to persuasive system design. Thus, we conduct a systematic literature analysis to represent how gamification and digital nudging are used to design SPAs and conclude if and how those concepts can support SPA interactions. Consequently, we contribute to theory, providing better understanding about SPA interaction and design making SPAs more engaging and entertaining. Practitioners can use this contribution for persuasive SPA designs.
Heidecker, Florian ; Breitenstein, Jasmin ; Rösch, Kevin ; Löhdefink, Jonas ; Bieshaar, Maarten ; Stiller, Christoph ; Fingscheidt, Tim ; Sick, Bernhard:An Application-Driven Conceptualization of Corner Cases for Perception in Highly Automated Driving.. In: IEEE Intelligent Vehicles Symposium (IV). Nagoya, Japan : IEEE, 2021, pp. 644–651
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Benner, Dennis ; Schöbel, Sofia:A Theory-Driven Design Science Research Agenda Towards Gamified Videos.. In: International Conference on Wirtschaftsinformatik (WI). Duisburg-Essen, Germany, 2021
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Digitalization has opened new opportunities but also brought new challenges such as lower engagement of students in online training. Especially learning videos need to be changed in their design and structure to make them more engaging for users. So far, overarching design principles are missing that support the development of gamified learning videos. In our research in progress paper we present an overarching approach on how to develop meaningful gamified learning videos. With our design science research approach, we plan to derive design principles and design features from our state-of-the-art design requirements. Additionally, we will conduct a field experiment to put our theoretical contributions to test and gather practical insights. Our research contributes to theory, by clarifying how and why gamified videos can support better learning. In a long run, practical contributions can be given to developers about how to construct gamified learning videos.
Schindler, Stephan ; Hornung, Gerrit: Datenschutz bei der biometrischen Gesichtserkennung. Künstliche Intelligenz und Mustererkennung als Herausforderung für das Recht. In: Datenschutz und Datensicherheit (2021), pp. 515–521
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Hegenberg, J. ; Schmidt, L.: Augmented-Reality-basierte Assistenz für das Anlernen manueller und roboterunterstützter Montageprozesse. In: Zeitschrift für Arbeitswissenschaft vol. 75 (2021), Nr. 4, pp. 367–387
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Durch eine zunehmend flexibilisierte Produktion und relativ hohe Personalfluktuation bei einfachen Tätigkeiten wird das Anlernen neuer Mitarbeitender bzw. für neue oder geänderte Produktionsprozesse zunehmend relevanter. Konventionelle Anlernmethoden, bspw. durch Demonstration oder Arbeitspläne, haben Schwächen (bspw. binden sie zusätzliche Arbeitskraft oder sind kognitiv anspruchsvoll), die durch ein Augmented-Reality-(AR-)basiertes Assistenzsystem kompensiert werden können. Ein AR-Assistenzsystem zum Anlernen eines tatsächlichen industriellen Montageprozesses wurde in einer vergleichenden Studie mit 16 Versuchspersonen gegenüber einer konventionellen Papieranleitung evaluiert. Bzgl. Gebrauchstauglichkeit und Beanspruchung deuten sich die Stärken des AR-Ansatzes an. In den Subskalen Anstrengung und Frustration zeigt sich eine statistisch signifikante Reduktion der Beanspruchung. Bezüglich der Montagezeiten konnten statistisch signifikante Vorteile erzielt werden. Ergänzend wurde in einer zweiten Studie eine Videoanleitung mit der AR-Anleitung verglichen. Praktische Relevanz: Die Digitalisierung der Produktion erlaubt nach Kundenwunsch individualisierte Produkte, die mit einer flexibilisierten Produktion einhergehen. Einfache Montageprozesse ändern sich daher häufiger vollständig oder in Teilen. Außerdem wechseln Mitarbeitende aufgrund der monotonen und repetitiven Tätigkeiten häufiger. All das führt zu einem Bedarf an regelmäßigen Anlernprozessen. Ein AR-Assistenzsystem erscheint als aussichtsreicher Ansatz, wobei die Gebrauchstauglichkeit besonders im Fokus stehen sollte, da wenig technische Kenntnisse vorausgesetzt werden können.
Mrass, Volkmar ; Peters, Christoph ; Leimeister, Jan Marco: How Companies Can Benefit from Interlinking External Crowds and Internal Employees. In: Management Information Systems Quarterly Executive (MISQE) vol. 20 (2021), Nr. 1, pp. 17–38
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Based on insights from an engineering design project conducted by Airbus and Local Motors, we describe how companies can leverage hybrid working by interlinking external crowds and internal employees, to increase the agility, quality and speed of product development. We identify the benefits and risks of hybrid working and describe the different ways of interlinking external crowds and internal employees. Finally, we provide recommendations for company executives who want to explore the use of hybrid working.
Benner, Dennis ; Elshan, Edona ; Schöbel, Sofia ; Janson, Andreas:What do you mean? A Review on Recovery Strategies to Overcome Conversational Breakdowns of Conversational Agents.. In: International Conference on Information Systems (ICIS), 2021
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Since the emergence of conversational agents, this technology has seen continuous development and research. Today, advanced conversational agents are virtually omnipresent in our everyday lives. Albeit the numerous improvements in their conversational capabilities, breakdowns are still a persistent issue. Such breakdowns can result in a very unpleasant experience for users and impair the future success of conversational agents. This issue has been acknowledged by many researchers recently. However, the research on strategies to overcome conversational breakdowns is still inconclusive, and further research is needed. Therefore, we conduct a systematic literature analysis to derive conceptual conversational breakdown recovery strategies from literature and highlight future research avenues to address potential gaps. Thus, we contribute to theory of human-agent interaction by deriving and assessing recovery strategies and suggesting leads for novel recovery strategies.
Bellman, Kirstie ; Botev, Jean ; Diaconescu, Ada ; Esterle, Lukas ; Gruhl, Christian ; Landauer, Christopher ; Lewis, Peter R. ; Nelson, Phyllis R. ; et al.: Self-improving system integration: Mastering continuous change. In: Future Generation Computer Systems vol. 117, Elsevier (2021), pp. 29–46
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The research initiative “self-improving system integration” (SISSY) was established with the goal to master the ever-changing demands of system organisation in the presence of autonomous subsystems, evolving architectures, and highly-dynamic open environments. It aims to move integration-related decisions from design-time to run-time, implying a further shift of expertise and responsibility from human engineers to autonomous systems. This introduces a qualitative shift from existing self-adaptive and self-organising systems, moving from self-adaptation based on predefined variation types, towards more open contexts involving novel autonomous subsystems, collaborative behaviours, and emerging goals. In this article, we revisit existing SISSY research efforts and establish a corresponding terminology focusing on how SISSY relates to the broad field of integration sciences. We then investigate SISSY-related research efforts and derive a taxonomy of SISSY technology. This is concluded by establishing a research road-map for developing operational self-improving self-integrating systems.
Hornung, G. ; Müller-Terpitz, F. (eds.):Rechtshandbuch Social Media. 2. ed. : Springer Verlag, Heidelberg, 2021
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Hornung, G. ; Müller-Terpitz, R.:Einführung in das Rechtshandbuch.. In: Hornung, G. ; Müller-Terpitz, R. (eds.): Rechtshandbuch Social Media.. 2. ed.. Heidelberg : Springer, 2021, pp. 1–12
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Hornung, G. ; Schallbruch, M.:IT-Sicherheitsrecht. Praxishandbuch. Baden-Baden : Nomos Verlagsgesellschaft, 2021
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Hornung, G.:Datenschutzrechtliche Aspekte der Social Media.. In: Hornung, G. ; Müller-Terpitz, R. (eds.): Rechtshandbuch Social Media. 2. ed.. Heidelberg : Springer, 2021, pp. 131–198
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Löber, Lena ; Roßnagel, Alexander ; David, K ; Lange, S: Datenschutzfreundliche Algorithmen. Datenminimierung in der Kontextverarbeitung. In: Datenschutz und Datensicherheit (2021), pp. 616–622
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Hornung, G. ; Schindler, S.:Kapitel „Telekommunikation und Telemedien“.. In: Hornung, G. ; Schallbruch, M. (eds.): IT-Sicherheitsrecht. Praxishandbuch. Baden-Baden : Nomos Verlagsgesellschaft, 2021, pp. 483–519
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Hetzel, Manuel ; Reichert, Hannes ; Doll, Konrad ; Sick, Bernhard:Smart Infrastructure: A Research Junction.. In: IEEE International Smart Cities Conference (ISC2) : IEEE, 2021. — 1
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Maier-Reinhardt, Natalie: Nationale Akkreditierungsanforderungen nach Art. 43 Abs. 3 DS-GVO iVm Art. 57 Abs. 1 lit. p DS-GVO – Vergleich Dänemark und Niederlande. In: ZD-Aktuell 2021 (2021), Nr. 20, p. 05559
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Maier-Reinhardt, Natalie:Kommentierung von § 23 (Datenverarbeitung für Zwecke des Beschäftigungsverhältnisses), § 33 (Auskunftsrecht der betroffenen Person), § 34 (Recht auf Löschung), § 52 (Auskunftsrecht) und § 53 (Rechte auf Berichtigung und Löschung sowie Einschränkung der Verarbeitung) HDSIG.. In: Roßnagel, A. (ed.): Hessisches Datenschutz- und Informationsfreiheitsgesetz (HDSIG). Baden-Baden : Nomos, 2021
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Maier-Reinhardt, Natalie: Vergleich nationaler Akkreditierungsanforderungen nach Art. 43 Abs. 3 i.V.m. 57 Abs. 1 lit. p DS-GVO. In: ZD-Aktuell (2021), Nr. 8, p. 05169
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Bieshaar, M. ; Zernetsch, S. ; Riepe, K. ; Doll, K. ; Sick, B.:Cyclist Motion State Forecasting -- Going beyond Detection.. In: IEEE Symposium Series on Computational Intelligence (SSCI). Orlando, FL, USA : IEEE, 2021. — (accepted)
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Bieshaar, Maarten ; Herde, Marek ; Huselijc, Denis ; Sick, Bernhard:A Concept for Highly Automated Pre-Labeling via Cross-Domain Label Transfer for Perception in Autonomous Driving.. In: Workshop on Interactive Adaptive Learning (IAL), ECML PKDD, 2021. — (accepted)
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Lamla, Jörn ; Roschka, Jakob:Konsum.. In: Endreß, M. ; Rampp, B. (eds.): Handbuch Politische Soziologie. Baden-Baden : Nomos, 2021
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Hofmann, K.:Assistenzsysteme in der Industrie 4.0: Arbeitsrechtliche und beschäftigtendatenschutzrechtliche Fragestellungen in einem automatisierten Arbeitsumfeld, Der Elektronische Rechtsverkehr : Nomos Verlagsgesellschaft, 2021 — ISBN 9783848780969
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Hofmann, Kai:Assistenzsysteme in der Industrie 4.0. Arbeitsrechtliche und beschäftigtendatenschutzrechtliche Fragestellungen in einem automatisierten Arbeitsumfeld.. In: . vol. Band 45. 1. Auflage 2021.. Baden-Baden : Nomos Verlagsgesellschaft, 2021
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Herde, Marek ; Huseljic, Denis ; Sick, Bernhard ; Calma, Adrian: A Survey on Cost Types, Interaction Schemes, and Annotator Performance Models in Selection Algorithms for Active Learning in Classification. In: IEEE Access vol. 9, IEEE (2021), pp. 166970–166989
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Pool-based active learning (AL) aims to optimize the annotation process (i.e., labeling) as the acquisition of annotations is often time-consuming and therefore expensive. For this purpose, an AL strategy queries annotations intelligently from annotators to train a high-performance classification model at a low annotation cost. Traditional AL strategies operate in an idealized framework. They assume a single, omniscient annotator who never gets tired and charges uniformly regardless of query difficulty. However, in real-world applications, we often face human annotators, e.g., crowd or in-house workers, who make annotation mistakes and can be reluctant to respond if tired or faced with complex queries. Recently, many novel AL strategies have been proposed to address these issues. They differ in at least one of the following three central aspects from traditional AL: 1) modeling of (multiple) human annotators whose performances can be affected by various factors, such as missing expertise; 2) generalization of the interaction with human annotators through different query and annotation types, such as asking an annotator for feedback on an inferred classification rule; 3) consideration of complex cost schemes regarding annotations and misclassification. This survey provides an overview of these AL strategies and refers to them as real-world AL. Therefore, we introduce a general real-world AL strategy as part of a learning cycle and use its elements, e.g., the query and annotator selection algorithm, to categorize about 60 real-world AL strategies. Finally, we outline possible directions for future research in the field of AL.
Billert, Matthias ; Peters, Christoph:Gelebte Demokratie in der Stadt der Zukunft – Entwicklung einer digitalen Bürgerbeteiligungsplattform.. In: Sommer, J. (ed.): Kursbuch Bürgerbeteiligung #4, 2021 — ISBN 978-3942466516, pp. 364–376
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Um die Lebensverhältnisse der Bürger*innen in Städten zu verbessern, sollen diese als Expert*innen ihres Alltags eingebunden werden. Jedoch finden städtische Angebote oftmals bei Bürger*innen keinen Anklang und umgekehrt kämpfen Bürgerinitiativen um die Aufmerksamkeit und Unterstützung von Städten. Um diese Lücke zu schließen, wurde eine digitale Bürgerbeteiligungsplattform in einer deutschen Großstadt etabliert. Sie unterstützt Bürger*innen bei ihren Anliegen und bietet Städten die Möglichkeit, bürger-initiierte Beiträge niederschwellig zu überprüfen und bereitzustellen. Mit dem anschließenden demokratischen Abstimmungsprozess handelt es sich um ein Stück gelebte Demokratie.
Herrmann, R.:Gestensteuerungen zur teleoperierten Navigation von Servicerobotern, Schriftenreihe Mensch-Maschine-Systemtechnik. vol. 1. Kassel : Kassel University Press, 2021
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Forscher versprechen sich durch die Verwendung von natürlichen Benutzungsschnittstellen eine Verbesserung der Mensch-Roboter-Interaktion gegenüber den konventionellen Eingabeparadigmen, die Joysticks, Mäuse oder Tastaturen verwenden. Gestensteuerungen, als eine Ausprägung von natürlichen Benutzungsschnittstellen, werden daher enorme Potenziale zugeschrieben. Aber ist dies gerechtfertigt? Rund um diese Frage ist eine Diskussion in der Wissenschaft entstanden. Auf der einen Seite gibt es Forscher, die versprechen, durch Gestensteuerungen konventionelle Eingabegeräte ersetzen zu können, auf der anderen Seite gibt es aber auch Forscher, die auf die Defizite von Gestensteuerungen hinweisen und deren Verwendung eher kritisch sehen. Die hier vorliegende Arbeit soll zu dieser Diskussion beitragen. Sie dokumentiert einerseits die vorhandenen Erkenntnisse über die Gebrauchstauglichkeit von Gestensteuerungen und andererseits Erkenntnisse über den gebrauchstauglichen Einsatz von Gestensteuerungen für die teleoperierte Navigation von Servicerobotern. Insbesondere über den gebrauchstauglichen Einsatz von Gestensteuerungen für diesen Anwendungsfall liegen bisher nur wenige Erkenntnisse vor. Methodisch erfolgt nach einer Einführung in die Problemstellung eine wissenschaftliche und technische Grundlagenrecherche über die Gestaltungsmöglichkeiten einer Gestensteuerung. Aufbauend auf bisher formulierten Anforderungen an eine gebrauchstaugliche Gestensteuerung erfolgt eine Bewertung dieser Gestaltungsmöglichkeiten. Für den Erkenntnisgewinn über den Einsatz von Gestensteuerungen für die teleoperierte Navigation von Servicerobotern wurden aufbauend auf den Bewertungen der Gestaltungsmöglichkeiten empirische Untersuchungen durchgeführt. Diese empirischen Untersuchungen adressieren zum einen die Navigation eines bodengestützten und zum anderen die eines fluggestützten Roboters. Das Ergebnis dieser empirischen Untersuchungen ist die Erkenntnis, dass Gestensteuerungen nicht per se besser abschneiden als konventionelle Eingabeparadigmen, allerdings auch nicht schlechter. Zudem werden Hinweise gegeben, welche Herausforderungen zu lösen sind, damit Gestensteuerungen tatsächlich besser abschneiden als konventionelle Eingabeparadigmen. Damit können die Ergebnisse dieser Arbeit auch genutzt werden, um Gestaltungsempfehlungen für Gestensteuerungen für den Anwendungsfall der teleoperierten Navigation abzuleiten.
Schöbel, Sofia ; Mohammed, Saqr ; Janson, Andreas: Two decades of game concepts in digital learning environments – A bibliometric study and research agenda. In: Computers & Education vol. 173 (2021), Nr. 104296
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In recent years, using game concepts for educational purposes in digital environments has become continually more popular and relevant. Games can be used to motivate and engage users in regular system use and, in the end, support learners in achieving better learning outcomes. In this context, different kinds of game concepts exist, such as gamification or serious games, each with a different perspective and usefulness in digital learning environments. Because developing and using with game concepts in digital learning environments has recently become more important, and developing them is still not fully established, questions arise about future research directions involving games in digital learning. Therefore, this study aims to identify the state of the field and determine what is relevant when using game concepts in digital learning. To achieve this goal, we present the results of a bibliometric analysis considering more than 10,000 articles between 2000 and 2019 and summarize them to develop a research agenda. This agenda supports researchers and practitioners in identifying avenues for future research. We contribute to theory by providing a detailed understanding of the relevance of game concepts in digital learning. We propose a research agenda to assist researchers in planning future approaches with and about gamification concepts in digital learning. Practical implications are proposed by demonstrating what should be considered when using game concepts in learning environments.
Hernandez Bark, Alina S. ; Seliverstova, K. ; Ohly, S.: Getting credit for proactivity? The effects of gender. In: Journal of Applied Social Psychology (2021)
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Lamla, Jörn ; Gertenbach, Lars ; Laser, Stefan: Eating ourselves out of industrial excess? Degrowth, multi-species conviviality and the micro-politics of cultured meat. In: Anthropological Theory vol. 21 (2021), Nr. 3, pp. 386–408
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Lamla, Jörn ; Büttner, Barbara ; Ochs, Carsten ; Pittroff, Fabian ; Uhlmann, Markus:Privatheit und Digitalität. Zur soziotechnischen Transformation des selbstbestimmten Lebens.. In: Roßnagel, A. ; Friedewald, M. (eds.): Die Zukunft von Privatheit und Selbstbestimmung. Analysen und Empfehlungen zum Schutz der Grundrechte in der digitalen Welt. Wiesbaden : Springer Vieweg, 2021
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Herde, Marek ; Kottke, Daniel ; Huseljic, Denis ; Sick, Bernhard:Multi-annotator Probabilistic Active Learning.. In: International Conference on Pattern Recognition (ICPR) : IEEE, 2021, pp. 10281–10288
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Hornung, G. ; Schallbruch, M.:Kapitel „Einführung“.. In: Hornung, G. ; Schallbruch, M. (eds.): IT-Sicherheitsrecht. Praxishandbuch. Baden-Baden : Nomos Verlagsgesellschaft, 2021, pp. 23–32
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He, Yujiang ; Sick, Bernhard: CLeaR: An adaptive continual learning framework for regression tasks. In: AI Perspectives vol. 3, Springer (2020), Nr. 1, p. 2
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Catastrophic forgetting means that a trained neural network model gradually forgets the previously learned tasks when being retrained on new tasks. Overcoming the forgetting problem is a major problem in machine learning. Numerous continual learning algorithms are very successful in incremental learning of classification tasks, where new samples with their labels appear frequently. However, there is currently no research that addresses the catastrophic forgetting problem in regression tasks as far as we know. This problem has emerged as one of the primary constraints in some applications, such as renewable energy forecasts. This article clarifies problem-related definitions and proposes a new methodological framework that can forecast targets and update itself by means of continual learning. The framework consists of forecasting neural networks and buffers, which store newly collected data from a non-stationary data stream in an application. The changed probability distribution of the data stream, which the framework has identified, will be learned sequentially. The framework is called CLeaR (Continual Learning for Regression Tasks), where components can be flexibly customized for a specific application scenario. We design two sets of experiments to evaluate the CLeaR framework concerning fitting error (training), prediction error (test), and forgetting ratio. The first one is based on an artificial time series to explore how hyperparameters affect the CLeaR framework. The second one is designed with data collected from European wind farms to evaluate the CLeaR framework's performance in a real-world application. The experimental results demonstrate that the CLeaR framework can continually acquire knowledge in the data stream and improve the prediction accuracy. The article concludes with further research issues arising from requirements to extend the framework.
Schmitt, Anuschka ; Wambsganss, Thiemo ; Söllner, Matthias ; Janson, Andreas:Towards a Trust Reliance Paradox? Exploring the Gap Between Perceived Trust in and Reliance on Algorithmic Advice.. In: International Conference on Information Systems (ICIS), 2021
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Beyond AI-based systems’ potential to augment decision-making, reduce organizational resources, and counter human biases, unintended consequences of such systems have been largely neglected so far. Researchers are undecided on whether erroneous advice acts as an impediment to system use or is blindly relied upon. As part of an experimental study, we turn towards the impact of incorrect system advice and how to design for failure-prone AI. In an experiment with 156 subjects we find that, although incorrect algorithmic advice is trusted less, users adapt their answers to a system’s incorrect recommendations. While transparency on a system’s accuracy levels fosters trust and reliance in the context of incorrect advice, an opposite effect is found for users exposed to correct advice. Our findings point towards a paradoxical gap between stated trust and actual behavior. Furthermore, transparency mechanisms should be deployed with caution as their effectiveness is intertwined with system performance.
Lamla, Jörn:Kritische Bewertungskompetenzen. Selbstbestimmtes Verbraucherhandeln in KI-gestützten IT-Infrastrukturen : JFF – Jugend Film Fernsehen e. V., 2021
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Schaefermeier, Bastian ; Stumme, Gerd ; Hanika, Tom: Topic space trajectories. In: Scientometrics vol. 126 (2021), Nr. 7, pp. 5759–5795
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The annual number of publications at scientific venues, for example, conferences and journals, is growing quickly. Hence, even for researchers it becomes harder and harder to keep track of research topics and their progress. In this task, researchers can be supported by automated publication analysis. Yet, many such methods result in uninterpretable, purely numerical representations. As an attempt to support human analysts, we present topic space trajectories, a structure that allows for the comprehensible tracking of research topics. We demonstrate how these trajectories can be interpreted based on eight different analysis approaches. To obtain comprehensible results, we employ non-negative matrix factorization as well as suitable visualization techniques. We show the applicability of our approach on a publication corpus spanning 50 years of machine learning research from 32 publication venues. In addition to a thorough introduction of our method, our focus is on an extensive analysis of the results we achieved. Our novel analysis method may be employed for paper classification, for the prediction of future research topics, and for the recommendation of fitting conferences and journals for submitting unpublished work. An advantage in these applications over previous methods lies in the good interpretability of the results obtained through our methods.
Gruhl, Christian ; Hannan, Abdul ; Huang, Zhixin ; Nivarthi, Chandana ; Vogt, Stephan:The Problem with Real-World Novelty Detection -- Issues in Multivariate Probabilistic Models.. In: Workshop on Self-Improving System Integration (SISSY), ACSOS : IEEE, 2021, pp. 204–209
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Lamla, Jörn:Political Sociology.. In: Hollstein, B. ; Greshoff, R. ; Schimank, U. ; Weiß, A. (eds.): The state of sociology in the German-speaking world. vol. Special Issue Soziologische Revue 2020. Berlin : de Gruyter Verlag, 2021 — ISBN 9783110623338, pp. 287–300
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Müller, Johannes ; Geminn, Christian:Mobilität und Verkehr.. In: Hornung ; Schallbruch (eds.): IT-Sicherheitsrecht, Praxishandbuch. Baden-Baden, 2021, pp. 520–553
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Lurtz, Helmut ; Schomberg, Sabrina: Betriebliches Datenschutz-Paradox oder betrieblicher Datenschutz-Calculus?. In: ZD-Aktuell (2021), p. 05269
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Schaefermeier, Bastian ; Stumme, Gerd ; Hanika, Tom: Topological Indoor Mapping through WiFi Signals (2021). — cite arxiv:2106.09789Comment: 18 pages
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The ubiquitous presence of WiFi access points and mobile devices capable of measuring WiFi signal strengths allow for real-world applications in indoor localization and mapping. In particular, no additional infrastructure is required. Previous approaches in this field were, however, often hindered by problems such as effortful map-building processes, changing environments and hardware differences. We tackle these problems focussing on topological maps. These represent discrete locations, such as rooms, and their relations, e.g., distances and transition frequencies. In our unsupervised method, we employ WiFi signal strength distributions, dimension reduction and clustering. It can be used in settings where users carry mobile devices and follow their normal routine. We aim for applications in short-lived indoor events such as conferences.
Kropf, Jonathan:Schleichender Wandel mit ambivalenten Folgen. Rezension zu „Digitale Transformation“ von Jan-Felix Schrape.. In: Soziopolis - Gesellschaft beobachten : Auf soziopolis.de, 2021
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Sander, Richard ; Peters, Christoph:Artificial Intelligence in the Customer Journey: A Systematic Overview of the Most Popular Use Cases Through the Creation of AI Archetypes.. In: Conference of the European Association for Research on Services (RESER). Heilbronn, Germany, 2021
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Gruhl, Christian ; Tomforde, Sven:OHODIN -- Online Anomaly Detection for Data Streams.. In: Workshop on Self-Improving System Integration (SISSY), ACSOS : IEEE, 2021, pp. 193–197
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Hornung, Gerrit: Das IT-Sicherheitsgesetz 2.0: Kompetenzaufwuchs des BSI und neue Pflichten für Unternehmen. In: Neue Juristische Wochenschrift 2021 (2021), pp. 1985–1991
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Gilga, Carolin: Automatisierte Kennzeichenerfassung in der Strafverfolgung - aktueller Regierungsentwurf. In: ZD-Aktuell (2021), p. 05041
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Gilga, Carolin: AIFER: KI zur Analyse und Fusion von Erdbeobachtungs- und Internetdaten zur Unterstützung bei der Lageerfassung und -einschätzung. In: ZD-Aktuell (2021), p. 05218
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Gilga, Carolin: Digitalisierung geschlechtergerecht gestalten - Das Zusammenspiel von Gleichstellung und Datenschutzrecht. In: ZD-Aktuell (2021), p. 05137
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Nebel, Maxi:§§ 19, 54-56 HDSIG.. In: Roßnagel, A. (ed.): . vol. Hessisches Datenschutz- und Informationsfreiheitsgesetz : Nomos, 2021
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Nebel, Maxi:Digitales Lernen – Datenschutzrechtliche Rechtsgrundlagen von Lernplattformen für Kinder und Erwachsene.. In: Stapf, I. ; Ammicht Quinn, R. ; Friedewald, M. ; Heesen, J. ; Krämer, N. (eds.): Aufwachsen in überwachten Umgebungen, Interdisziplinäre Positionen zu Privatheit und Datenschutz in Kindheit und Jugend : Nomos, 2021
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König, I. ; Bachmann, M. ; Bieshaar, M. ; Schindler, S. ; Lambrecht, F. ; David, K. ; Sick, B. ; Hornung, G. ; et al.:Traffic Safety in Future Cities by Using a Safety Approach Based on AI and Wireless Communications.. In: ITG-Symposium on Mobile Communication - Technologies and Applications. Osnabrück, Germany, 2021, pp. 1–6
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Gruhl, Christian ; Sick, Bernhard ; Tomforde, Sven: Novelty detection in continuously changing environments. In: Future Generation Computer Systems vol. 114, Elsevier (2021), pp. 138–154
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Self-improving system integration (SISSY) aims at mastering the challenges of system organisation decisions for subsystems with highly dynamic behaviours. This is achieved by increased decision freedom of these subsystems, i.e., by moving the corresponding design decisions from design-time to run-time and from engineers to the systems themselves. As a result, a more robust and efficient constellation of the overall system organisation is maintained even under the presence of continuous change and disturbed conditions. Appropriate integration decisions require a solid foundation of assessing the current conditions and their dynamics using identifying triggers for a necessary evaluation of their own integration status. With this article, we present mCANDIES, a modular novelty detection technique especially suited for SISSY systems that fulfils exactly these identification tasks. mCANDIES tackles an anomaly or novelty detection problem in a modular way by combining the advantages of different detection approaches by exploiting locality in different regions of the input space — depending on, e.g. the density or location of expected observations. This is augmented with information about changes in the underlying model of the observations, i.e., mCANDIES identifies concept drifts. The corresponding information can then be used to trigger online learning behaviour. We analyse the behaviour of mCANDIES on artificial and real-world data sets and compare it to other techniques from the state of the art.
Grünenfelder, Janay Ilya ; Zierau, Naim ; Janson, Andreas:Alexa, are you still there? Understanding the Habitual Use of AI-Based Voice Assistants.. In: International Conference on Information Systems (ICIS), 2021
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Voice assistants are a novel class of information systems that fundamentally change human–computer interaction. Although these assistants are widespread, the utilization of these information systems is oftentimes only considered on a surface level by individuals. In addition, prior research has focused predominantly on initial use instead of looking deeper into post-adoption and habit formation. In consequence, this paper reviews how the notion of habit has been conceptualized in relation to biographical utilization of voice assistants and presents findings based on a qualitative study approach. From a perspective of post-adoption users, the study suggests that existing habits persist, and new habits hardly ever form in the context of voice assistant utilization. This paper outlines four key factors that help explain voice assistant utilization behavior and furthermore provides practical implications that help to ensure continued voice assistant use in the future.
He, Yujiang ; Huang, Zhixin ; Sick, Bernhard:Toward Application of Continuous Power Forecasts in a Regional Flexibility Market.. In: International Joint Conference on Neural Networks (IJCNN) : IEEE, 2021, pp. 1–8
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Löber, Lena: Digitales EU-COVID-Zertifikat und CovPass-App: Rückkehr zur Freiheit oder Überwachungsinstrument?. In: ZD-Aktuell (2021), p. 05220
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Schmidt, Simon L. ; Li, Mahei Manhai ; Peters, Christoph ; Leimeister, Jan Marco:Nutzungszentrierte Gestaltung von HI-basierten Dienstleistungen am Beispiel des IT-Supports.. In: Bruhn, M. ; Hadwich, K. (eds.): Künstliche Intelligenz im Dienstleistungsmanagement. vol. Geschäftsmodelle – Serviceinnovationen – Implementierung : Springer Gabler, 2021 — ISBN 978-3-658-34324-8
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Die Verbindung von menschlicher und künstlicher Intelligenz, die wir hybride Intelligenz (HI) nennen, soll Mitarbeitende im IT-Support entlasten und unterstützen. In diesem Beitrag gestalten wir nutzungszentriert eine HI-basierte Dienstleistung am Beispiel des IT-Supports. Wir beginnen mit einer Problemidentifizierung am Beispiel von drei unterschiedlich groß aufgestellten Unternehmen. Basierend auf diesen identifizierten Herausforderungen des IT-Supports wurden die Interaktionen während der Dienstleistungserbringung zwischen allen Beteiligten (Mitarbeitende, Kund:innen und System) nutzungszentriert neu gestaltet.
Schmidt, Simon L. ; Li, Mahei Manhai ; Weigel, Sascha ; Peters, Christoph:Knowledge is Power: Provide your IT-Support with Domain-Specific High-Quality Solution Material.. In: International Conference on Design Science Research in Information Systems and Technology (DESRIST) : Springer, 2021
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As more and more business processes are based on IT services the high availability of these processes is dependent on the IT-Support. Thus, making the IT-Support a critical success factor of companies. This paper presents how this department can be supported by providing the staff with domain-specific and high-quality solution material to help employees faster when errors occur. The solution material is based on previously solved tickets because these contain precise domain-specific solutions narrowed down to e.g., specific versions and configurations of hard-/software used in the company. To retrieve the solution material ontologies are used that contain the domain-specific vocabulary needed. Because not all previously solved tickets contain high-quality solution material that helps the staff to fix issues the designed IT-Support system separates lowfrom high-quality solution material. This paper presents (a) theory- and practicalmotivated design requirements that describe the need for automatically retrieved solution material, (b) develops two major design principles to retrieve domainspecific and high-quality solution material, and (c) evaluates the instantiations of them as a prototype with organic real-world data. The results show that previously solved tickets of a company can be pre-processed and retrieved to ITSupport staff based on their current queries.
Hornung, G. ; Stroscher, J.-P.: Datenschutz in der Katastrophe. Anwendbarkeit, Systematik und Kompetenzfragen - Teil 1. In: Zeitschrift für das Gesamte Sicherheitsrecht (2021), pp. 149–154
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Hornung, G. ; Stroscher, J.-P.: Datenschutz in der Katastrophe. Zulässigkeitstatbestände und Vorgaben für die Datenverarbeitung zur Katastrophenvorsorge und -bekämpfung - Teil 2. In: Zeitschrift für das Gesamte Sicherheitsrecht (2021), pp. 185–191
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Lamla, Jörn:Kultur.. In: Lorenz, S. (ed.): In Gesellschaft Richard Sennetts. Perspektiven auf ein Lebenswerk. Bielefeld : transcript Verlag, 2021 — ISBN 978-3-8376-5309-0, pp. 69–82
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Scheiner, Nicolas ; Kraus, Florian ; Appenrodt, Nils ; Dickmann, Jürgen ; Sick, Bernhard: Object Detection For Automotive Radar Point Clouds -- A Comparison. In: AI Perspectives vol. 3, Springer (2021), Nr. 1, p. 6
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Hannan, Abdul ; Gruhl, Christian ; Sick, Bernhard:Anomaly based Resilient Network Intrusion Detection using Inferential Autoencoders.. In: IEEE International Conference on Cyber Security and Resilience (CSR) : IEEE, 2021, pp. 1–7
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Löber, Lena: KI-Lösungen gegen Desinformation in Social Networks – Fragen des grundrechtskonformen und transparenten Einsatzes (2021)
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Bogdoll, Daniel ; Breitenstein, Jasmin ; Heidecker, Florian ; Bieshaar, Maarten ; Sick, Bernhard ; Fingscheidt, Tim ; Zöllner, J. Marius:Description of Corner Cases in Automated Driving: Goals and Challenges.. In: Embedded and Real-World Computer Vision in Autonomous Driving (ERCVAD), ICCV : IEEE, 2021, pp. 1023–1028,
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Hanika, Tom ; Hirth, Johannes:Quantifying the Conceptual Error in Dimensionality Reduction.. In: Braun, T. ; Gehrke, M. ; Hanika, T. ; Hernandez, N. (eds.): Graph-Based Representation and Reasoning - 26th International Conference on Conceptual Structures, ICCS 2021, Virtual Event, September 20-22, 2021, Proceedings, Lecture Notes in Computer Science. vol. 12879 : Springer, 2021, pp. 105–118
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Hanika, Tom ; Hirth, Johannes:Exploring Scale-Measures of Data Sets.. In: Braud, A. ; Buzmakov, A. ; Hanika, T. ; Ber, F. L. (eds.): Formal Concept Analysis - 16th International Conference, ICFCA 2021, Strasbourg, France, June 29 - July 2, 2021, Proceedings, Lecture Notes in Computer Science. vol. 12733 : Springer, 2021, pp. 261–269
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Lamla, Jörn:Die symbolischen Ordnungen des Konsums – und die Fallstricke produktivistischer Soziologie.. In: Lenz, S. ; Hasenfratz, M. (eds.): Capitalism unbound. Ökonomie, Ökologie, Kultur.. Frankfurt/Main; New York : Campus, 2021, pp. 283–299
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Möller, Felix ; Botache, Diego ; Huseljic, Denis ; Heidecker, Florian ; Bieshaar, Maarten ; Sick, Bernhard:Out-of-distribution Detection and Generation using Soft Brownian Offset Sampling and Autoencoders.. In: Workshop on Safe Artificial Intelligence for Automated Driving (SAIAD), CVPR, 2021, pp. 1–10
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Haesler, S. ; Mogk, R. ; Putz, F. ; Logan, K. T. ; Thiessen, N. ; Kleinschnitger, K. ; Baumgärtner, L. ; Stroscher, J.-P. ; et al.: Connected Self-Organized Citizens in Crises: An Interdisciplinary Resilience Concept for Neighborhoods. In: CSCW ’21: Companion Publication of the 2021 Conference on Computer Supported Cooperative Work and Social Computing (2021), pp. 62–66
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Löber, Lena:Kommentierung der §§ 49-51 HDSIG (Automatisierte Einzelentscheidung; Allgemeine Informationen zu Datenverarbeitungen; Benachrichtigung betroffener Personen).. In: Roßnagel, A. (ed.): Hessisches Datenschutz- und Informationsfreiheitsgesetz. Baden-Baden : Nomos, 2021
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Müller, Johannes: Der „digitale Zwilling“. In: ZD-Aktuell (2021), p. 05096
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Haase-Schütz, Christian ; Stal, Rainer ; Hertlein, Heinz ; Sick, Bernhard:Iterative Label Improvement: Robust Training by Confidence Based Filtering and Dataset Partitioning.. In: International Conference on Pattern Recognition (ICPR) : IEEE, 2021, pp. 9483–9490
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Huhnstock, Rico ; Reginka, Meike ; Tomita, Andreea ; Merkel, Maximilian ; Dingel, Kristina ; Holzinger, Dennis ; Sick, Bernhard ; Vogel, Michael ; et al.: Translatory and rotatory motion of exchange-bias capped Janus particles controlled by dynamic magnetic field landscapes. In: Scientific Reports vol. 11, Nature Publishing Group (2021), Nr. 1, p. 21794 — ISBN 0123456789
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Magnetic Janus particles (MJPs), fabricated by covering a non-magnetic spherical particle with a hemispherical magnetic in-plane exchange-bias layer system cap, display an onion magnetization state for comparably large diameters of a few microns. In this work, the motion characteristics of these MJPs will be investigated when they are steered by a magnetic field landscape over prototypical parallel-stripe domains, dynamically varied by superposed external magnetic field pulse sequences, in an aqueous medium. We demonstrate, that due to the engineered magnetization state in the hemispherical cap, a comparably fast, directed particle transport and particle rotation can be induced. Additionally, by modifying the frequency of the applied pulse sequence and the strengths of the individual field components, we observe a possible separation between a combined or an individual occurrence of these two types of motion. Our findings bear importance for lab-on-a-chip systems, where particle immobilization on a surface via analyte bridges shall be used for low concentration analyte detection and a particle rotation over a defined position of a substrate may dramatically increase the immobilization (and therefore analyte detection) probability.
Geminn, Christian: Japan: Nach der Reform ist vor der Reform. In: Zeitschrift für Datenschutz (2021), Nr. 1, p. XI-XII
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Eilers, Karen ; Li, Mahei:Sense of Control for Empowerment in Hybrid Intelligence Service Systems.. In: International Conference on Information Systems (ICIS). Workshop: Service and Information Systems Research for a Better Future. Austin, Texas, USA, 2021
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Peters, Christoph ; Schmidt, Simon ; Li, Mahei ; Leimeister, Jan Marco: Hybrid intelligenter Service Support: Wie die Mitarbeitenden selbstbestimmt den IT-Support durch künstliche Intelligenz aufwerten. In: e.V. (KVD), K.-V. D. (ed.) Service Today vol. 35 (2021), Nr. 1/21, pp. 66–67
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Koyda, Maren ; Stumme, Gerd:Boolean Substructures in Formal Concept Analysis.. In: ICFCA: International Conference on Formal Concept Analysis, Lecture Notes in Computer Science : Springer, 2021 — ISBN 978-3-030-77866-8, pp. 38–53
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Schreiber, Jens ; Vogt, Stephan ; Sick, Bernhard:Task Embedding Temporal Convolution Networks for Transfer Learning Problems in Renewable Power Time Series Forecast.. In: European Conference on Machine Learning and Knowledge Discovery in Databases (ECML PKDD): Applied Data Science Track : Springer, 2021, pp. 118–134
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Kress, Viktor ; Zernetsch, Stefan ; Doll, Konrad ; Sick, Bernhard:Pose Based Trajectory Forecast of Vulnerable Road Users Using Recurrent Neural Networks.. In: Workshop on Integrated Artificial Intelligence in Data Science, ICPR : Springer, 2021, pp. 57–71
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Dingel, Kristina ; Otto, Thorsten ; Marder, Lutz ; Funke, Lars ; Held, Arne ; Savio, Sara ; Hans, Andreas ; Hartmann, Gregor ; et al.: Toward AI-enhanced online-characterization and shaping of ultrashort X-ray free-electron laser pulses. In: arXiv e-prints (2021), p. arXiv:2108.13979
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X-ray free-electron lasers (XFELs) as the world`s most brilliant light sources provide ultrashort X-ray pulses with durations typically on the order of femtoseconds. Recently, they have approached and entered the attosecond regime, which holds new promises for single-molecule imaging and studying nonlinear and ultrafast phenomena like localized electron dynamics. The technological evolution of XFELs toward well-controllable light sources for precise metrology of ultrafast processes was, however, hampered by the diagnostic capabilities for characterizing X-ray pulses at the attosecond frontier. In this regard, the spectroscopic technique of photoelectron angular streaking has successfully proven how to non-destructively retrieve the exact time-energy structure of XFEL pulses on a single-shot basis. By using artificial intelligence algorithms, in particular convolutional neural networks, we here show how this technique can be leveraged from its proof-of-principle stage toward routine diagnostics at XFELs, thus enhancing and refining their scientific access in all related disciplines.
Janson, Andreas ; Kreidel, Leonie ; Schöbel, Sofia ; Hornung, Gerrit ; Söllner, Matthias ; Leimeister, Jan Marco:Datenkompetenz durch edukatives Privacy Nudging: Zentrale Prinzipien und Effekte auf Lernprozesse.. In: Stapf, I. ; Quinn, R. A. ; Friedewald, M. ; Heesen, J. ; Krämer, N. (eds.): Aufwachsen in überwachten Umgebungen: Interdisziplinäre Positionen zu Privatheit und Datenschutz in Kindheit und Jugend. Baden-Baden, Germany : Nomos, 2021 — ISBN 978-3-8487-6916-2, pp. 255–277
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Die Digitalisierung verändert nicht nur unser privates, sondern auch unser Arbeitsleben. Immer mehr Daten über Individuen sind online verfügbar und werden für die Nutzung von bestimmten Online Services vorausgesetzt. Hierbei verlieren die Nutzenden oft den Überblick, wie und welche Daten sie von sich preisgeben. Dies birgt nicht nur das Risiko der Preisgabe von privaten Daten, sondern auch unternehmensseitig das Risiko, dass wichtige Daten außerhalb des Unternehmens veröffentlicht werden. Hier kann das Konzept des digitalen Nudgings angewandt werden, welches nunmehr auch als edukatives Privacy Nudging genutzt werden kann. Das Konzept bezweckt, Individuen durch bestimmte Elemente wie beispielsweise Defaults zu Verhaltensänderungen anzuregen. Dieser Beitrag hat zum Ziel, einen Überblick darüber zu geben, welche Privacy Nudges es im edukativen Bereich gibt und wie diese mit verschiedenen Lerntheorien in Einklang gebracht werden können. Der Text soll Forschern und Praktikern eine Orientierung geben, selbst edukative Privacy Nudges zu gestalten und endet mit einem Fallbeispiel, das aufzeigt wie einfache Gestaltungsänderungen Individuen dazu anregen können, sich privatheitsfreundlicher zu verhalten und sorgsamer mit ihren privaten Daten umzugehen.
Dickhaut, Ernestine ; Janson, Andreas ; Leimeister, Jan Marco:LEGIT Methodology: Towards Capturing Legal Compatibility of Design Science Artifacts.. In: Chandra Kruse, L. ; Seidel, S. ; Hausvik, G. I. (eds.): International Conference on Design Science Research in Information Systems and Technology (DESRIST). vol. 12807. Kristiansand, Norway : Lecture Notes in Computer Science (Spring Cham), 2021 — ISBN 978-3-030-82405-1, pp. 293–298
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Higher legal standards with regards to the data protection of individu-als such as the General Data Protection Regulation (GDPR) are increasing the pressure on developers of IT artifacts. Typically, when developing systems, we subsequently evaluate them with users to elaborate aspects such as user experi-ence perceptions. However, nowadays, other evaluation aspects such as legality and data policy issues are also important criteria for system development. For this purpose, we introduce LEGIT (legal design science evaluation), which pro-vides developers with guidance when considering legal requirements. We use the case of the GDPR to illustrate the feasibility, applicability, and benefit to the de-velopment process. With this novel method adapted from law research, we are able to derive actionable guidance for developers to evaluate developer efforts in increasing legal compatibility. To illustrate our methodological approach, in this paper, we describe the key steps of the method with respect to the evaluation of a learning assistant. We develop an AI-based learning assistant for university stu-dents to demonstrate the application of the novel evaluation method. We briefly discuss how this procedure can serve as the foundation for a new evaluation method of legally compatible systems in design science research.
Elshan, Edona ; Engel, Christian ; Ebel, Philipp:Opening the Black Box of Music Royalties with the Help of Hybrid Intelligence.. In: Hawaii International Conference on System Sciences (HICCS), 2021
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The ever-increasing complexity of the music industry and the intensified resentment of artists towards collecting societies call for a transformation and a change of behavior within the music ecosystem. This article introduces a hybrid intelligence system, that ameliorates the current situation by combining the intelligence of humans and machines. This study proposes design requirements for hybrid intelligence systems in the music industry. Using a design science research approach, we identify design requirements both inductively from expert interviews and deductively from theory and present a first prototypical instantiation of a respective hybrid intelligence system. Overall, this shall enrich the body of knowledge of hybrid intelligence research by transferring its concepts into a new context. Furthermore, the identified design requirements shall serve as a foundation for researchers and practitioners to further explore and design hybrid intelligence in the music industry and beyond.
Dingel, Kristina ; Liehr, Alexander ; Vogel, Michael ; Degener, Sebastian ; Meier, David ; Niendorf, Thomas ; Ehresmann, Arno ; Sick, Bernhard:AI - Based On The Fly Design of Experiments in Physics and Engineering.. In: Workshop on Self-Improving System Integration (SISSY), ACSOS : IEEE, 2021, pp. 150–153
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Reichert, Hannes ; Lang, Lukas ; Rösch, Kevin ; Bogdoll, Daniel ; Doll, Konrad ; Sick, Bernhard ; Reuss, Hans-Christian ; Stiller, Christoph ; et al.:Towards Sensor Data Abstraction of Autonomous Vehicle Perception Systems.. In: IEEE International Smart Cities Conference (ISC2) : IEEE, 2021, pp. 1–4
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Dickhaut, Ernestine ; Janson, Andreas ; Leimeister, Jan Marco:The Hidden Value of Patterns – Using Design Patterns to Whitebox Technology Development in Legal Assessments.. In: International Conference on Wirtschaftsinformatik (WI), The Hidden Value of Patterns – Using Design Patterns to Whitebox Technology Development in Legal Assessments. University of Duisburg-Essen, Germany, 2021
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Higher legal standards with regards to data protection of individuals such as the European General Data Protection Regulation (GDPR) increase the pressure on developing lawful technologies. The development requires feedback from stakeholders such as legal experts that lack technical knowledge but are required to understand IT artifacts. As a solution, patterns can support interdisciplinary system development. We demonstrate how interdisciplinary patterns can support legal experts in arguing about technologies in court by introducing a law simulation study which is a well-known evaluation method in law. Our results show that patterns support legal experts in their argumentation about technologies in court. We provide theoretical contributions concerning cognitive fit theory about how patterns act as a bridge between the internal and external representation of problems and improve problem-solving performance related to the legal assessment of technology. In addition, we provide practical guidance for codifying and communicating design knowledge through patterns.
Reinke, Kathrin ; Ohly, Sandra: Double-edged effects of work-related technology use after hours on employee well-being and recovery: The role of appraisal and its determinants. In: German Journal of Human Resource Management vol. 35 (2021), Nr. 2, pp. 224–248
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Leimeister, Jan Marco ; Stieglitz, Stefan ; Matzner, Martin ; Kundisch, Dennis ; Flath, Christoph ; Röglinger, Maximilian: Quo Vadis Conferences in the Business and Information Systems Engineering (BISE) Community After Covid: What Can Stay, What Should Go, What Do We Need to Change for Our Future Scientific Conferences?. In: Business & Information Systems Engineering (BISE) vol. 63 (2021), Nr. 6, pp. 741–749
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The global Covid-19 pandemic has not only influenced the way we work and collaborate on our research but also how we present and exchange novel contributions at scientific conferences. Governmental lockdowns and (inter)-national travel restrictions have forced conference organizers to move from offline conference venues to virtual platforms quickly. Our discipline, the Business & Information Systems Engineering (BISE) community, is an interdisciplinary field involving the more conference-driven computer sciences and the more journal-oriented social science. Thus, the impact of Covid-19 on—and the (needed) experience with—new conference formats require a differentiated discourse on the role of the future of our scientific conferences. Hence, we aim to contribute to a discussion on (1) what can stay offline / as on-site conference formats, (2) what we can learn from the experience with (new) online formats, and (3) what do we need for our future scientific conferences in the BISE community?
Jakob, Stefan ; Baraki, Harun ; Jahl, Alexander ; Chiadjeu, Eric Douglas Nyakam ; Alhamwy, Yasin ; Geihs, Kurt:Adaptive Semantic Routing in Dynamic Environments.. In: Proceedings of the 13th International Conference on Agents and Artificial Intelligence : SciTePress, 2021
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Huseljic, Denis ; Sick, Bernhard ; Herde, Marek ; Kottke, Daniel:Separation of Aleatoric and Epistemic Uncertainty in Deterministic Deep Neural Networks.. In: International Conference on Pattern Recognition (ICPR) : IEEE, 2021, pp. 9172–9179
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Dickhaut, Ernestine ; Li, Mahei Manhai ; Janson, Andreas ; Leimeister, Jan Marco:Developing Lawful Technologies – A Revelatory Case Study on Design Patterns.. In: Hawaii International Conference on System Sciences (HICSS), 2021
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Higher legal standards regarding the data protection of individuals, such as the European General Data Protection Regulation, increase the pressure on developing lawful systems. In the development of technologies, not only developers are involved. It also requires knowledge from other stakeholders, such as legal experts, that lack technical knowledge but are required to understand IT artifacts. We see two strings that can benefit from the use of design patterns: first, the well-known use of design patterns to support developers in case of recurring problems. Second, we see potential that legal experts, who have to interact with and understand complicated, novel technologies, benefit from the same patterns. We conduct a revelatory case study using design patterns to develop and assess a smart learning assistant. We scaffolded the case interpretation through the human-centered view of socio-materiality and provide contributions concerning the use of design patterns in the development and assessment of lawful technologies.
Jahl, Alexander ; Jakob, Stefan ; Baraki, Harun ; Alhamwy, Yasin ; Geihs, Kurt:Blockchain-based Task-centric Team Building.. In: Proceedings of the 13th International Conference on Agents and Artificial Intelligence : SciTePress, 2021
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Dankwa, Nana Kesewaa:“All Names Are Pseudonyms”: A Critical Reflection on Pseudonymizing Names in HCI: “All Names Are Pseudonyms”.. In: CHI EA ’21: Extended Abstracts of the 2021 CHI Conference on Human Factors in Computing Systems. New York, NY, USA : Association for Computing Machinery, 2021 — ISBN 9781450380959, pp. 1–6
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A person's name embodies identity. During user studies in Human Computer Interaction (HCI), persons are often renamed (pseudonymization) to hide their identity for privacy and ethical reasons. Pseudonymization occurs mostly as a “silent” affair of due diligence. Researchers barely give substantial information to the process nor reveal a reflexive position nor acknowledge the underlying elements of power and identity negotiation. As HCI advances in mitigating the design of biased technologies and breaking oppressive structures, I argue, in this paper, the need for the field to re-consider research requirements such as pseudonymization as possible to embody oppressive structures and erase identity. I present a review of papers from the 2020 CHI Conference on Human Factors in Computing Systems (CHI ‘20) that illustrate how silent the HCI approach is. My argument is built on Critical Race Theory, questioning the objectivity of such technical requirements. I use personal narratives to bolster this argument, ending with a call to the HCI community to acknowledge the power and privilege in renaming participants with three recommendations for consideration.
Dellermann, Dominik ; Lipusch, Nikolaus ; Ebel, Philipp ; Leimeister, Jan Marco:CrowdServ – Konzept für ein hybrides Entscheidungsunterstützungssystem zur Validierung von Geschäftsmodellen.. In: Beverungen, D. ; Schumann, J. H. ; Stich, V. ; Strina, G. (eds.): Dienstleistungsinnovationen durch Digitalisierung. vol. Band 2: Prozesse ‐ Transformation ‐ Wertschöpfungsnetzwerke. Germany, Berlin/Heidelberg : Springer Gabler, 2021 — ISBN 978-3-662-63098-3, pp. 291–331
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Eine der kritischsten Aufgaben für Start-ups ist die Validierung ihres Geschäftsmodells. Daher versuchen Gründer, Informationen wie z. B. Feedback von anderen Akteuren zu sammeln, um die Gültigkeit ihrer Annahmen zu bewerten und Entscheidungen zu treffen. Bisherige Arbeiten über Entscheidungshilfen für die Validierung von Geschäftsmodellen bieten jedoch keine Lösung für den höchst unsicheren und komplexen Kontext von Start-ups in der Frühphase. Der Zweck dieser Studie ist daher die Entwicklung von Entwurfsprinzipien für ein hybrides Entscheidungsunterstützungssystem (HIDSS), das die komplementären Fähigkeiten von menschlicher und maschineller Intelligenz kombiniert. Wir verfolgen einen gestaltungsorientierten Forschungsansatz, um ein Prototyp-Artefakt und eine Reihe von Designprinzipien zu entwerfen. Unsere Studie liefert präskriptives Wissen für HIDSS und trägt zu früheren Arbeiten über Entscheidungsunterstützung für Geschäftsmodelle, über die Anwendung der komplementären Stärken von Mensch und Maschine zur Entscheidungsfindung und über Unterstützungssysteme für extrem unsichere Entscheidungsprobleme bei.
Al-Falouji, Ghassan ; Gruhl, Christian ; Tomforde, Sven:Digital Shadows in Self-Improving System Integration: A Concept Using Generative Modelling.. In: Workshop on Self-Improving System Integration (SISSY), ACSOS : IEEE, 2021, pp. 166–171
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Schomberg, Sabrina ; Stroscher, Jan-Philipp: Digitale Kontaktnachverfolgung per App – ist ein Ende der Zettelwirtschaft in Sicht?. In: ZD-Aktuell (2021), p. 05138
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Coban, Alev ; Wenten, Klara-Aylin: Who Cares for Agile Work? In/Visiblized Work Practices and their Emancipatory Potentials. In: Nanoethics vol. 15 (2021), pp. 15–70
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Leimeister, Jan Marco ; Dickhaut, Ernestine ; Janson, Andreas:Design Pattern as a Bridge Between Problem-Space and Solution-Space.. In: Aier, S. ; Rohner, P. ; Schelp, J. (eds.): Engineering the Transformation of the Enterprise - A Design Science Research Perspective. Cham, Switzerland : Springer, 2021 — ISBN 978-3-030-84657-2, pp. 137–150
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Designing novel technologies provide challenges to developers. To support developers in designing these technologies, design knowledge must be codified and made applicable for the future. In systems development, design patterns provide proven solutions to solving recurring problems. They contain templates for describing design information, often in tabular form, and are established tools for making complex knowledge accessible and applicable. Design patterns play a critical role in both practice and research in finding potential solutions. For researchers, patterns can provide a method for codifying design knowledge for future research. For practitioners, design patterns provide established solutions to recurring problems. By applying them in a particular context, the pattern represents elements of both the problem-space and the solution-space, providing an opportunity to bridge the gap between the two spaces. Due to the abstraction of design patterns, they can be used for different application scenarios. The preparation of the design knowledge in the design pattern is a critical step to support the user in the best possible way, that determines the usefulness of the pattern.
Schreiber, Jens ; Sick, Bernhard:Emerging Relation Network and Task Embedding for Multi-Task Regression Problems.. In: International Conference on Pattern Recognition (ICPR) : IEEE, 2021, pp. 2663–2670
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Schöbel Sofia ; Schmidt-Kraepelin, Manuel ; Janson, Andreas ; Sunyaev, Ali: Adaptive and Personalized Gamification Designs: Call for Action and Future Research. In: AIS Transactions on Human-Computer Interaction vol. 13 (2021), Nr. 4, pp. 479–494
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Gamification refers to the use of game-like elements in non-entertainment contexts to make activities more engaging and enjoyable to improve utilitarian outcomes. The gamification literature and the use of gamification in practice suggest that gamification can be a useful tool to support behavioral and psychological changes. Recent developments show that there is potential for new waves of gamification research. Therefore, we conducted a workshop at the International Conference on Wirtschaftsinformatik (WI) 2021 to discuss the future of gamification with interested scholars. The discussion with 25 gamification experts led to a research agenda that supports the need for adaptive and personalized gamification designs. Together with the experts, we identify three clusters for future research: 1) the personalization of gamification concepts, 2) theories and concepts for gamified human-computer interaction, and 3) the “dark side” of gamification (e.g., addiction). We also address what the gamification concept means. Aligned with the three clusters, we provide valuable starting points for future research inquiries to help researchers better understand the nature of gamification. We also discuss the capabilities and limits of gamification.
Renner, Maximilian ; Lins, Sebastian ; Söllner, Matthias ; Thiebes, Scott ; Sunyaev, Ali:Achieving Trustworthy Artificial Intelligence: Multi-Source Trust Transfer in Artificial Intelligence-capable Technology.. In: International Conference on Information Systems (ICIS), 2021
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Contemporary research focuses on examining trustworthy AI but neglects to consider trust transfer processes, proposing that users’ established trust in a familiar source (e.g., a technology or person) may transfer to a novel target. We argue that such trust transfer processes also occur in the case of novel AI-capable technologies, as they are the result of the convergence of AI with one or more base technologies. We develop a model with a focus on multi-source trust transfer while including the theoretical framework of trust duality (i.e., trust in providers and trust in technologies) to advance our understanding about trust transfer. A survey among 432 participants confirms that users transfer their trust from known technologies and providers (i.e., vehicle and AI technology) to AI-capable technologies and their providers. The study contributes by providing a novel theoretical perspective on establishing trustworthy AI by validating the importance of the duality of trust.
Koopmann, T. ; Stubbemann, M. ; Kapa, M. ; Paris, M. ; Buenstorf, G. ; Hanika, T. ; Hotho, A. ; Jäschke, R. ; et al.: Proximity Dimensions and the Emergence of Collaboration: A HypTrails Study on German AI Research. In: Scientometrics vol. 126 (2021), Nr. 12, pp. 9847–9868
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Schomberg, Sabrina ; Dickhaut, Ernestine ; Barev, Torben Jan ; Janson, Andreas:Mithilfe von Privacy Nudging zu rechtsverträglichen Videokonferenztools.. In: INFORMATIK 2021 – 51. Jahrestagung der Gesellschaft für Informatik. vol. Computer Science & Sustainability. Berlin : Gesellschaft für Informatik e.V. (GI), 2021, pp. 979–994
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Die Covid-19 Pandemie hat zu enormen Veränderungen im Arbeitsalltag geführt. Videokonferenztools gewannen durch die Zusammenarbeit über Distanz an Bedeutung. In kürzester Zeit kamen in vielen Unternehmen Videokonferenztools verschiedener Hersteller zum Einsatz; der Datenschutz stand dabei in der Regel nicht an erster Stelle und es kam zu zahlreichen Datenschutzverstößen. Im Laufe der Pandemie rückte der Datenschutz mehr in den Fokus und es wurde nachgebessert. Wir wollen mit unserem Beitrag anregen Videokonferenztools nicht nur datenschutzkonform, sondern rechtsverträglich zu gestalten. Daher haben wir die Benutzeroberfläche eines Tools (Zoom) an den Stellen angepasst, an denen datenschutzsensibles Verhalten besonders kritisch ist. Wir zeigen, wie kleine Änderungen in der Benutzeroberfläche und die Integration von Privacy Nudges zu datenschutzsensiblem Verhalten führen können. Um diese sogenannten Privacy Nudges für Entwickelnde von Videokonferenztools so praktisch und zugänglich wie möglich zu machen, greifen wir auf das Konzept der Design Pattern aus der Systementwicklung zurück.
Krempl, Georg ; Kottke, Daniel ; Pham, Tuan:Statistical Analysis of Pairwise Connectivity.. In: International Conference on Discovery Science (DS), Lecture Notes in Computer Science : Springer, 2021, pp. 138–148
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Reuse, Matthias ; Simon, Martin ; Sick, Bernhard:About the Ambiguity of Data Augmentation for 3D Object Detection in Autonomous Driving.. In: Embedded and Real-World Computer Vision in Autonomous Driving (ERCVAD), ICCV : IEEE, 2021, pp. 979–987
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Dingel, Kristina ; Huhnstock, Rico ; Knie, André ; Ehresmann, Arno ; Sick, Bernhard: AdaPT: Adaptable particle tracking for spherical microparticles in lab on chip systems. In: Computer Physics Communications vol. 262, Elsevier (2021), p. 107859
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Due to its rising importance in science and technology in recent years, particle tracking in videos presents itself as a tool for successfully acquiring new knowledge in the field of life sciences and physics. Accordingly, different particle tracking methods for various scenarios have been developed. In this article, we present a particle tracking application implemented in Python for, in particular, spherical magnetic particles, including superparamagnetic beads and Janus particles. In the following, we distinguish between two sub-steps in particle tracking, namely the localization of particles in single images and the linking of the extracted particle positions of the subsequent frames into trajectories. We provide an intensity-based localization technique to detect particles and two linking algorithms, which apply either frame-by-frame linking or linear assignment problem solving. Beyond that, we offer helpful tools to preprocess images automatically as well as estimate parameters required for the localization algorithm by utilizing machine learning. As an extra, we have implemented a technique to estimate the current spatial orientation of Janus particles within the x-y-plane. Our framework is readily extendable and easy-to-use as we offer a graphical user interface and a command-line tool. Various output options, such as data frames and videos, ensure further analysis that can be automated.
Eilers, Karen ; Simmert, Benedikt ; Peters, Christoph ; Leimeister, Jan Marco:Why the Agile Mindset Matters.. In: Academy of Management Annual Meeting (AOM), 2021
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Volatility, uncertainty, ambiguity, and complexity (VUCA) are drivers in today’s business world. Therefore, an increasing number of organizations implement agility (agile methods) to cope with the rapid and accelerating change. However, these agile transformations do not succeed unhindered, and some fail. One reason for that is the employees lacking an agile mindset and they do not support or participate in the transformation. So far, knowledge of the agile mindset is in its infancy. A conceptualization for developing a measuring instrument on the individual level is lacking. Furthermore, the relevance of the agile mindset regarding organizational performance in a VUCA world is still unclear. Our study aims to close this gap. To do so, we examine the agile mindset with 15 qualitative interviews and conduct an online survey (N=449) to predict organizational agility and organizational performance based on the agile mindset. As for results, we conceptualize the agile mindset as an attitude that comprises four dimensions: ’learning spirit’, ‘collaborative exchange’, ‘empowered self-guiding’, and ‘iterative value creation’. We have found an indirect effect of the agile mindset affecting organizational performance towards organizational agility. These findings contribute to the agility and management research by providing both a conceptualization and a measuring instrument for the agile mindset. Furthermore, the agile mindset´s relevance in agile transformation is explained and its relation to organizational performance outlined. For successful agile transformation, executives must focus on the agile mindset of their employees and foster this by e.g. being a role model.
Dürrschnabel, Dominik ; Koyda, Maren ; Stumme, Gerd:Attribute Selection Using Contranominal Scales.. In: Braun, T. ; Gehrke, M. ; Hanika, T. ; Hernandez, N. (eds.): Graph-Based Representation and Reasoning. Cham : Springer International Publishing, 2021 — ISBN 978-3-030-86982-3, pp. 127–141
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Formal Concept Analysis (FCA) allows to analyze binary data by deriving concepts and ordering them in lattices. One of the main goals of FCA is to enable humans to comprehend the information that is encapsulated in the data; however, the large size of concept lattices is a limiting factor for the feasibility of understanding the underlying structural properties. The size of such a lattice depends on the number of subcontexts in the corresponding formal context that are isomorphic to a contranominal scale of high dimension. In this work, we propose the algorithm ContraFinder that enables the computation of all contranominal scales of a given formal context. Leveraging this algorithm, we introduce {\$$}{\$$}{backslashdelta {\$$}{\$$}$$\delta$$-adjusting, a novel approach in order to decrease the number of contranominal scales in a formal context by the selection of an appropriate attribute subset. We demonstrate that {\$$}{\$$}{backslashdelta {\$$}{\$$}$$\delta$$-adjusting a context reduces the size of the hereby emerging sub-semilattice and that the implication set is restricted to meaningful implications. This is evaluated with respect to its associated knowledge by means of a classification task. Hence, our proposed technique strongly improves understandability while preserving important conceptual structures.
Reginka, Meike ; Hoang, Hai ; Efendi, Özge ; Merkel, Maximilan ; Huhnstock, Rico ; Holzinger, Dennis ; Dingel, Kristina ; Sick, Bernhard ; et al.: Transport efficiency of biofunctionalized magnetic particles tailored by surfactant concentration. In: Langmuir vol. 37, ACS (2021), Nr. 28, pp. 8498–8507
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Dankwa, Nana Kesewaa ; Draude, Claude:Setting Diversity at the Core of HCI.. In: Antona, M. ; Stephanidis, C. (eds.): Universal Access in Human-Computer Interaction. Design Methods and User Experience, Lecture Notes in Computer Science. vol. 12768. Cham : Springer International Publishing, 2021 — ISBN 978-3-030-78092-0, pp. 39–52
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The advancing awareness of diversity in HCI is touted as laudable in addressing inequality and the digital divide. This progress however has not been reflected in HCI research. Diversity in HCI has focused on giving underrepresented users voice and confronting homogeneity. By increasing representations, though a diversity affinity is immediately visible, the deconstruction of institutionalized prejudice fails. Additionally, underrepresented voices have the unsurmountable task of representing their group. These approaches to diversity become tokenistic fixes failing to tackle the systemic causes of inequality.
Jakob, Stefan ; Jahl, Alexander ; Baraki, Harun ; Geihs, Kurt:Generating Commonsense Ontologies with Answer Set Programming.. In: Proceedings of the 13th International Conference on Agents and Artificial Intelligence : SciTePress, 2021
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Leimeister, Jan Marco:Einführung in die Wirtschaftsinformatik. 13th. ed.. Germany, Berlin/Heidelberg : Springer Gabler, 2021 — ISBN 978-3-662-63559-9
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Das Buch gibt eine fundierte und praxisbezogene Einführung in das Gesamtgebiet der Wirtschaftsinformatik. Aufbauend auf den bewährten Vorgängerauflagen von Stahlknecht und Hasenkamp wurde die 13. Auflage komplett überarbeitet, strukturell weiterentwickelt und aktualisiert. Die Schwerpunkte umfassen u.a. Datenmanagement, Big Data, Analytics und Systementwicklung, Digital Business, Digitale Transformation, IT-Management sowie IT-Anwendungssysteme.
Dürrschnabel, Dominik ; Stumme, Gerd:Force-Directed Layout of Order Diagrams Using Dimensional Reduction.. In: Braud, A. ; Buzmakov, A. ; Hanika, T. ; Le Ber, F. (eds.): Formal Concept Analysis. Cham : Springer International Publishing, 2021 — ISBN 978-3-030-77867-5, pp. 224–240
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Order diagrams allow human analysts to understand and analyze structural properties of ordered data. While an expert can create easily readable order diagrams, the automatic generation of those remains a hard task. In this work, we adapt force-directed approaches, which are known to generate aesthetically-pleasing drawings of graphs, to the realm of order diagrams. Our algorithm ReDraw thereby embeds the order in a high dimension and then iteratively reduces the dimension until a two-dimensional drawing is achieved. To improve aesthetics, this reduction is equipped with two force-directed steps where one step optimizes the distances of nodes and the other one the distances of lines in order to satisfy a set of a priori fixed conditions. By respecting an invariant about the vertical position of the elements in each step of our algorithm we ensure that the resulting drawings satisfy all necessary properties of order diagrams. Finally, we present the results of a user study to demonstrate that our algorithm outperforms comparable approaches on drawings of lattices with a high degree of distributivity.
Kottke, Daniel ; Herde, Marek ; Minh, Tuan Pham ; Benz, Alexander ; Mergard, Pascal ; Roghman, Atal ; Sandrock, Christoph ; Sick, Bernhard: scikit-activeml: A Library and Toolbox for Active Learning Algorithms. In: Preprints (2021), p. 2021030194
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Machine learning applications often need large amounts of training data to perform well. Whereas unlabeled data can be easily gathered, the labeling process is difficult, time-consuming, or expensive in most applications. Active learning can help solve this problem by querying labels for those data points that will improve the performance the most. Thereby, the goal is that the learning algorithm performs sufficiently well with fewer labels. We provide a library called scikit-activeml that covers the most relevant query strategies and implements tools to work with partially labeled data. It is programmed in Python and builds on top of scikit-learn.
Schomberg, Sabrina: PRIDS: Forschungsprojekt zu den Auswirkungen von KI auf Privatheit, Demokratie und Selbstbestimmung. In: ZD-Aktuell (2021), p. 05270
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Roßnagel, A. ; Heesen, J. ; Bieber, C. ; Grunwald, A. ; Matzner, T.:KI-Systeme und die individuelle Wahlentscheidung – Chancen und Herausforderungen für die Demokratie : Plattform Lernende Systeme, München, 2021
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Kottke, Daniel ; Herde, Marek ; Sandrock, Christoph ; Huseljic, Denis ; Krempl, Georg ; Sick, Bernhard: Toward optimal probabilistic active learning using a Bayesian approach. In: Machine Learning vol. 110, Springer (2021), Nr. 6, pp. 1199–1231
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Gathering labeled data to train well-performing machine learning models is one of the critical challenges in many applications. Active learning aims at reducing the labeling costs by an efficient and effective allocation of costly labeling resources. In this article, we propose a decision-theoretic selection strategy that (1) directly optimizes the gain in misclassification error, and (2) uses a Bayesian approach by introducing a conjugate prior distribution to determine the class posterior to deal with uncertainties. By reformulating existing selection strategies within our proposed model, we can explain which aspects are not covered in current state-of-the-art and why this leads to the superior performance of our approach. Extensive experiments on a large variety of datasets and different kernels validate our claims.
Peters, Christoph ; Eilers, Karen ; Simmert, Benedikt ; Leimeister, Jan Marco:Future Organization Report 2021. St.Gallen, Switzerland and Frankfurt, Germany : Institute of Information Management at University of St.Gallen and Campana & Schott Business Services GmbH, 2021
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What are the attributes of successful organizations? This is the question addressed by the Future Organization Report 2021. It focuses on the idea of “Organizational Excellence” and what organizations can do to achieve this goal.
Peters, Christoph ; Billert, Matthias:Government-as-a-Platform im Kontext Bürgerbeteiligung: Konzeption, Entwicklung und Integration am Beispiel einer deutschen Smart City.. In: Laumer, R. (ed.): Kommunales Open Government - Grundlagen, Praxis, Perspektiven. Marburg, Germany : Büchner Verlag, 2021 — ISBN 978-3-96317-246-5, pp. 52–64
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Bürgerbeteiligung war und ist wichtig – insbesondere in Zeiten von Covid-19. Dabei bedarf es einer sinnvollen Kombination und einer guten Verzahnung von digitalen und analogen Angeboten, wobei insbesondere im Kontext von Covid-19 die Frage bezüglich digitaler Bürgerbeteiligung im Raum steht: Wenn nicht jetzt, wann dann? Wir sprechen uns für Formen digitaler Bürgerbeteiligung aus, die bestehende Formen nicht ersetzen, sondern synergetisch ergänzen. Um dies zu tun, zeigen wir in diesem Beitrag auf, wie das Konzept des Government-as-a-Platform hierbei zu verstehen ist und helfen kann. Außerdem beschreiben wir Konzeption, Entwicklung und Integration einer digitalen Bürgerbeteiligungsplattform, die sich unter anderem durch die Verzahnung von Top-down- und Bottom-up-Elementen wie auch durch Transparenz der Plattform-Prozesse auszeichnet. Bürger*innen werden dabei als Expert*innen ihres Alltags gesehen und dazu empowert, durch eigene Projektvorschläge ihre Stadt proaktiv mitzugestalten.
Knote, Robin ; Janson, Andreas ; Söllner, Matthias ; Leimeister, Jan Marco: Value Co-Creation in Smart Services: A Functional Affordances Perspective on Smart Personal Assistants. In: Journal of the Association for Information Systems vol. 22 (2021), Nr. 2, pp. 418–458
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In the realm of smart services, smart personal assistants (SPAs) have become a popular medium for value co-creation between service providers and users. The market success of SPAs is largely based on their innovative material properties, such as natural language user interfaces, machine-learning-powered request handling and service provision, and anthropomorphism. In different combinations, these properties offer users entirely new ways to intuitively and interactively achieve their goals and, thus, co-create value with service providers. But how does the nature of the SPA shape value co-creation processes? In this paper, we look through a functional affordances lens to theorize about the effects of different types of SPAs (i.e., with different combinations of material properties) on users' value co-creation processes. Specifically, we collected SPAs from research and practice by reviewing scientific literature and web resources, developed a taxonomy of SPAs' material properties, and performed a cluster analysis to group SPAs of a similar nature. We then derived 2 general and 11 cluster-specific propositions on how different material properties of SPAs can yield different affordances for value co-creation. With our work, we point out that smart services require researchers and practitioners to fundamentally rethink value co-creation as well as revise affordances theory to address the dynamic nature of smart technology as a service counterpart.
Alhamwy, Yasin: Information Management for Multi-Agent Systems. In: Electronic Communications of the EASST vol. 80 (2021)
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Draude, Claude ; Gruhl, Christian ; Hornung, Gerrit ; Kropf, Jonathan ; Lamla, Jörn ; Leimeister, Jan Marco ; Sick, Bernhard ; Stumme, Gerd: Social Machines. In: Informatik Spektrum (2021)
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Roßnagel, A.:Kommentierung des HDSIG: Einleitung (33 S.), §§ 1–3 ( 41 S.), §§ 8–12 (35 S.), §§ 15–18 (19 S.), § 26 (8 S.), §§ 29, 30 (14 S.), §§ 41, 42 (21 S.), §§ 90, 91(4 S.).. In: Roßnagel, A. (ed.): Hessisches Datenschutz- und Informationsfreiheitsgesetz (HDSIG), Handkommentar. Baden-Baden : Nomos Verlagsgesellschaft, 2021
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Peters, Christoph:Designing Work and Service Systems. School of Management, University of St.Gallen : Habilitation Thesis, 2021
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Söllner, Matthias ; Janson, Andreas ; Rietsche, Roman ; Thiel de Gafenco, Marian: Individualisierung in der beruflichen Bildung durch Hybrid Intelligence. Potentiale und Grenzen. In: Seufert, S. ; Guggemos, J. ; Ifenthaler, D. ; Ertl, H. ; Seifried, J. (eds.) Zeitschrift für Berufs- und Wirtschaftspädagogik vol. Beiheft 31. Stuttgart, Germany, Franz Steiner Verlag (2021), pp. 163–181 — ISBN 978-3-515-13075-2
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Künstliche Intelligenz durchdringt immer stärker verschiedene Lebensbereiche und macht auch vor der beruflichen Bildung nicht halt. In diesem Zusammenhang gibt es derzeit vielfältige Diskussionen zur Rolle der menschlichen Intelligenz in zukünftigen Arbeitsprozessen und damit verknüpft Fragen zur Auswirkung auf die Aus- und Weiterbildung von Arbeitskräften. Ziel dieses Beitrags ist es darzulegen, warum in den kommenden Jahrzehnten die effektive Kombination der komplementären Stärken von menschlicher und künstlicher Intelligenz im Sinne des Hybrid Intelligence (HI)-Gedankens im Vordergrund stehen wird. Anschließend werden Potentiale und Grenzen von HI im Kontext der beruflichen Aus- und Weiterbildung mit besonderem Fokus auf die Individualisierung von Lehr-/Lernprozessen diskutiert.
Buchmann, Johannes ; Hofmann, Jeanette ; Simon, Judith ; Anderl, Reiner ; André, Elisabeth ; Bäcker, Matthias ; Breiter, Andreas ; Dienlin, Tobias ; et al.:Digitalisierung und Demokratie. Stellungnahme : Nationale Akademie der Wissenschaften Leopoldina; acatech – Deutsche Akademie der Technikwissenschaften; Union der deutschen Akademien der Wissenschaften, 2021
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Bachmann, Marek ; Morold, Michel ; David, Klaus: On the Required Movement Recognition Accuracy in Cooperative VRU Collision Avoidance Systems. In: IEEE Transactions on Intelligent Transportation Systems vol. 22 (2021), Nr. 3, pp. 1708–1717
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Anderson, Christoph ; Heinisch, Judith Simone ; Deldari, Shohreh ; Salim, Flora D. ; Ohly, Sandra ; David, Klaus ; Pejovic, Veljko: Towards Social Role-Based Interruptibility Management. In: CoRR vol. abs/2106.04265 (2021)
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2020[ to top ]

Geminn, Christian: Betroffenenrechte verbessern – Überarbeitungsbedarf der Datenschutz-Grundverordnung. In: Datenschutz und Datensicherheit (2020), pp. 307–311
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Dickhaut, E. ; Thies, L. F. ; Janson, A. ; Leimeister, J. M. ; Söllner, M.:Entwurfsmuster für die interdisziplinäre Gestaltung rechtsverträglicher Systeme : Forum Privatheit, 2020
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Geminn, Christian: Digitalisierung und verletzliche Gruppen im Recht. In: Kritische Vierteljahresschrift für Gesetzgebung und Rechtswissenschaft vol. 103 (2020), pp. 254–288
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Hornung, G.:Vorb. zu § 3a sowie Kommentierung von §§ 3a, 33, 34 und 35.. In: Verwaltungsrecht. VwVfG. München : Verlag C.H.Beck, Loseblatt, 2020
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Johannes, P. ; Weinhold, R.:§§ 37- 39, 41 -44, 62 – 65 DSG NRW.. In: Pabst ; Schwartmann (eds.): Datenschutzgesetz NRW. Baden-Baden, 2020
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Geminn, Christian:Kommentierung von § 24 (Datenverarbeitung zu wissenschaftlichen oder historischen Forschungszwecken und zu statistischen Zwecken), § 28a (Datenverarbeitung bei öffentlichen Auszeichnungen und Ehrungen), § 28b (Datenverarbeitung in Gnadenverfahren) und §§ 80 bis 89 (Informationsfreiheit) HDSIG.. In: Roßnagel, A. (ed.): Hessisches Datenschutz- und Informationsfreiheitsgesetz. Baden-Baden : Nomos, 2020
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Dickhaut, Ernestine ; Thies, Laura Friederike ; Janson, Andreas: Die Kodifizierung von Gestaltungswissen in interdisziplinären Entwurfsmustern - Lösungen im Spannungsfeld zwischen Rechtsverträglichkeit und Dienstleistungsqualität. In: Datenschutz und Datensicherheit (DuD) (2020), pp. 584–588
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In der Entwicklung informationstechnischer Systeme entstehen oft Zielkonflikte, die durch Gestaltung der Systeme aufgelöst werden müssen. Hierfür fehlt es Entwicklern, insbesondere bei Konflikten zwischen Rechtsverträglichkeit und Dienstleistungsqualität, oft an dem notwendigen Wissen und der erforderlichen Gestaltungserfahrung. Hier können Entwurfsmuster weiterhelfen. Der Beitrag stellt am Beispiel Smarter Persönlicher Assistenten einen Ansatz vor, in dem Entwurfsmuster interdisziplinäres Gestaltungswissen zusammenführen, geht auf die Besonderheiten des Gestaltungswissens der beiden Disziplinen ein und stellt ein beispielhaftes Entwurfsmuster vor.
Borchmann, Daniel ; Hanika, Tom ; Obiedkov, Sergei: Probably approximately correct learning of Horn envelopes from queries. In: Discrete Applied Mathematics vol. 273 (2020), pp. 30–42. — Advances in Formal Concept Analysis: Traces of CLA 2016
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We propose an algorithm for learning the Horn envelope of an arbitrary domain using an expert, or an oracle, capable of answering certain types of queries about this domain. Attribute exploration from formal concept analysis is a procedure that solves this problem, but the number of queries it may ask is exponential in the size of the resulting Horn formula in the worst case. We recall a well-known polynomial-time algorithm for learning Horn formulas with membership and equivalence queries and modify it to obtain a polynomial-time probably approximately correct algorithm for learning the Horn envelope of an arbitrary domain.
Geminn, Christian: CNIL schließt Bewertung der App ‚StopCovid‘ ab. In: Zeitschrift für Datenschutz (2020), Nr. 8, p. VII-VIII
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Schmidt, L. ; Hegenberg, J. ; Mack, N.: RadAR+. In: Schlussbericht des BMBF-Projektes, Schlussbericht des BMBF-Projektes.. Kassel (2020)
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Die Komplexität des öffentlichen Personenverkehrs nimmt durch die stetige Verdichtung und Verknüpfung unterschiedlicher Verkehrsmittel zu. Die daraus erwachsenden Anforderungen an die kognitive und physische Leistungsfähigkeit des Menschen beim Wechsel minutengenau getakteter Verkehrsmittel lassen besonders an hochbelasteten Knotenpunkten vermehrt kritische Situationen bei der Durchführung von Reiseketten entstehen, die alle Altersgruppen betreffen. Dies kann z. B. bei mangelnden Ortskenntnissen zur Informationsüberflutung und zur Orientierungslosigkeit von Reisenden führen. Im Projekt RadAR+ wurde ein persönliches Reiseassistenzsystem entwickelt, das Nutzerinnen und Nutzer bei Verkehrsmittelwechseln an komplexen Mobilitätsknoten unterstützt. Das Teilvorhaben zur Mensch-Technik-Interaktion beschäftigte sich dabei schwerpunktmäßig damit, dass die benötigten Informationen in ergonomisch angemessener Form zum richtigen Zeitpunkt und in der notwendigen Tiefe bereitgestellt werden. Das lernende Assistenzsystem verwaltet das erforderliche Umgebungswissen an Verkehrsknoten und stellt die navigationsrelevanten Daten in Echtzeit zur Verfügung. Ein adaptives Nutzermodell lernt die Mobilitätsanforderungen und Bedürfnisse des Nutzers. Auf dieser Basis werden bspw. Empfehlungen zur Gestaltung längerer Aufenthalte beim Umstieg entlang intermodaler Reiseketten berechnet. Für die individualisierte Mobilitätsplanung werden je nach persönlichen Bedürfnissen mobile Geräte, insbesondere Datenbrillen, verwendet. Auf diese Weise können auch komplexe Routeninformationen situationsgerecht vermittelt werden. Durch Visualisierung von Augmented-Reality-(AR)-Elementen in der Datenbrille wird der Nutzer bei der Navigation zum gewünschten Verkehrsmittel sowie bei der Abschätzung der dazu noch verfügbaren Zeit unterstützt. Hierbei werden auch ggf. vorliegende Abweichungen vom Normalfall mit Echtzeitdaten automatisch berücksichtigt. Die Entwicklung folgte einem iterativen benutzerorientierten Gestaltungsprozess, um die bedarfsgerechte Umsetzung und letztlich die Akzeptanz der Nutzer sicherzustellen. Konzepte und Teillösungen wurden unter Nutzerbeteiligung formativ evaluiert und die Ergebnisse in folgenden Entwicklungsiterationen aufgegriffen. Ein barrierearmer Technologie-Zugang wurde mit intuitiver Mensch-Maschine-Kommunikation (AR-, Sprach-User-Interfaces) erreicht. Abschließend wurde ein Demonstrator realisiert, der im Feld entlang einer intermodalen Reisekette in Frankfurt am Main summativ evaluiert wurde. Die Ergebnisse ermöglichen eine Reiseassistenz, die eine breite Bevölkerungsschicht bei der Orientierung im öffentlichen Personenverkehr unterstützt
Morold, Michel ; Nguyen, Quang-Huy ; Bachmann, Marek ; David, Klaus ; Dressler, Falko:Requirements on Delay of VRU Context Detection for Cooperative Collision Avoidance.. In: 2020 IEEE 92nd Vehicular Technology Conference (VTC2020-Fall), 2020, pp. 1–5
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Geminn, Christian:Der Mensch in Recht und Technik – eine Bestandsaufnahme.. In: Hentschel, A. ; Hornung, G. ; Jandt, S. (eds.): Mensch – Technik – Umwelt: Verantwortung für eine sozialverträgliche Zukunft – Festschrift für Alexander Roßnagel zum 70. Geburtstag. Baden-Baden : Nomos, 2020, pp. 63–80
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Nguyen, Quang-Huy ; Morold, Michel ; David, Klaus ; Dressler, Falko: Car-to-Pedestrian communication with MEC-support for adaptive safety of Vulnerable Road Users. In: Computer Communications vol. 150 (2020), pp. 83–93
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Car-to-Pedestrian (Car2P) communication has a huge potential for preventing potential accidents between pedestrians and vehicles by exchanging context information. Similar communication principles have been explored for Car-to-Car (C2C) communication since quite a while and are now being deployed as an additional safety mechanism. Unfortunately, Vulnerable Road Users (VRUs) such as pedestrians and bicyclists are not yet covered by these systems. Looking at pedestrians, we explore possibilities for the exchange of relevant safety mechanisms between pedestrians and cars making use of readily available communication capabilities of current LTE networks. Necessary activity and collision detection algorithms have to be run on the users’ smartphones in order to determine the criticality of the situation. In order to improve both the overall system latency and the energy efficiency of the smartphone applications, we suggest the use of Multi-access Edge Computing (MEC). We implemented the system to perform measurements on the smartphone side as well as extensive simulations on the networking side. Our results clearly show the advantages of our concept and the integrated MEC approach.
Geminn, Christian ; Müller, Johannes:Mobilität und Verkehr.. In: Hornung, G. ; Schallbruch, M. (eds.): Handbuch IT-Sicherheitsrecht – Rechtsfragen der IT- und Cybersicherheit. Baden-Baden : Nomos, 2020
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Dickhaut, Ernestine ; Janson, Andreas ; Leimeister, Jan Marco: Wie können Systeme künstlicher Intelligenz ohne Qualitätsverlust rechtsverträglich gestaltet werden?. In: Wirtschaftsinformatik & Management vol. 12 (2020), Nr. 2, pp. 90–100
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Künstliche intelligente (KI)-Systeme erfreuen sich immer größerer Beliebtheit. Im Alltag erleben wir KI beispielsweise durch smarte persönliche Assistenten (SPAs), welche von Amazon, Google und Co. angeboten werden. Zwar haben diese KI-Systeme große Nutzungspotenziale, gleichzeitig gehen damit aber auch erhebliche Risiken einher, beispielsweise datenschutzrechtliche. Doch wie lassen sich diese Spannungsfelder auflösen? Interdisziplinäre Gestaltungsmuster im Systementwicklungsprozess können eine Lösung darstellen, welche nachfolgend mit Handlungsimplikationen für gesellschaftlich wünschenswerte „KI made in Germany“ skizziert wird.
Geminn, Christian: Menschenwürde und menschenähnliche Maschinen und Systeme. In: Die Öffentliche Verwaltung vol. 73 (2020), pp. 172–181
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Geminn, Christian ; Müller, Johannes:Anonymität und Corona-App aus Sicht des Datenschutzrechts, 2020
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Geminn, Christian: EU-Kommission: Leitlinien zu Datenschutzstandards für Corona-Apps. In: ZD-Aktuell (2020), Nr. 9, p. 07112
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Geminn, Christian: Japan: Nach der Reform ist vor der Reform. In: ZD-Aktuell (2020), Nr. 19, p. 07391
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Geminn, Christian ; Johannes, P. ; Miedzianowski, Nadine: Datenschutz nach Corona – Was ist da, was bleibt, was kommt?. In: ZD-Aktuell (2020), p. 07073
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Geminn, Christian ; Jessica, Szczuka ; Carina, Weber ; André, Artelt ; Lina, Varonina: Kinder als Nutzende smarter Sprachassistenten – Spezieller Gestaltungsbedarf zum Schutz von Kindern. In: Datenschutz und Datensicherheit (2020), pp. 600–605
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Peters, Christoph ; Simmert, Benedikt ; Eilers, Karen ; Leimeister, Jan Marco:Future Organization Report 2020. St.Gallen, Switzerland und Frankfurt, Germany. : Institute of Information Management at University of St.Gallen and Campana & Schott Business Services GmbH, 2020
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Hornung, G.:Kommentierung von Art. 42, 43 DSGVO und § 39 BDSG (bis 5. Auflage: § 9a BDSG a.F.).. In: Eßer, M. ; Kramer, P. ; v. Lewinski, K. (eds.): Auernhammer. Datenschutz-Grundverordnung, Bundesdatenschutzgesetz und Nebengesetze, Kommentar. vol. 4. Auflage 2014 (33 Seiten), 5. Auflage 2017 (49 Seiten), 6. Auflage 2018 (51 Seiten), 7. Auflage 2020 (53 Seiten).. Köln : Carl Heymanns Verlag, 2020
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Geminn, Christian ; Johannes, P.:Kommentierung von § 45 (Datenverarbeitung zu wissenschaftlichen oder historischen Forschungszwecken, archivarischen oder statistischen Zwecken) HDSIG.. In: Roßnagel, A. (ed.): Hessisches Datenschutz- und Informationsfreiheitsgesetz. Baden-Baden : Nomos, 2020
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Hornung, G.:Das Recht auf Vergessenwerden als Strukturelement körperloser Sozialräume.. In: Mensch - Technik - Umwelt: Verantwortung für eine sozialverträgliche Zukunft. Festschrift für Alexander Roßnagel zum 70. Geburtstag. Baden-Baden, 2020, pp. 379–400
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Dickhaut, Ernestine ; Janson, Andreas ; Roßnagel, Alexander ; Leimeister, Jan Marco: Interdisziplinäre Anforderungsmuster für smarte persönliche Assistenten - Mittel zu Erfassung divergenter Anforderungen aus Informatik und Recht. In: Datenschutz und Datensicherheit (DuD) vol. 44 (2020), Nr. 9, pp. 579–583
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Bei der Entwicklung smarter persönlicher Assistenten können Anforderungsmuster helfen, die oftmals konfliktären Anforderungen zu systematisieren und miteinander in Einklang zu bringen. Sie können wiederkehrende rechtliche und qualitative Anforderungen in einer für Entwickler verständlichen Form darstellen und so helfen, sie im Entwicklungsprozess besser zu berücksichtigen.
Geminn, Christian: Gesetzesinitiative zur Schaffung einer Federal Data Protection Agency in den USA. In: ZD-Aktuell (2020), p. 07025
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Geminn, Christian ; Charalampos, Leontopoulos: Stellungnahmen zur Evaluation der Datenschutz-Grundverordnung. In: ZD-Aktuell (2020), p. 07024
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Geminn, Christian:Leitlinien der Europäischen Kommission zu Datenschutzstandards für Corona-Apps, 2020
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Johannes, P. ; Weinhold, R.:§§ 45, 47, 49, 51–53, 62–81 BDSG.. In: Sydow (ed.): Bundesdatenschutzgesetz. Baden-Baden, 2020
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Leimeister, Jan Marco ; Dickhaut, Ernestine ; Janson, Andreas:Der Ansatz von Mustern zur systematischen Steigerung der Rechtsverträglichkeit und Dienstleistungsqualität bei der Entwicklung soziotechnischer Systeme.. In: Hentschel, A. ; Hornung, G. ; Jandt, S. (eds.): Mensch - Technik - Umwelt: Verantwortung für eine sozialverträgliche Zukunft. Festschrift für Alexander Roßnagel zum 70. Geburtstag. Baden-Baden, Deutschland : Nomos, 2020 — ISBN 978-3-8487-7014-4, pp. 131–147
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Geminn, Christian: Frankreich: Bewertung der Tracing-App ‚StopCovid‘ durch die CNIL. In: ZD-Aktuell (2020), Nr. 11, p. 07175
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Dickhaut, Ernestine ; Miedzianowski, Nadine ; Jandt, Silke ; Janson, Andreas ; Knote, Robin ; Leimeister, Jan Marco ; Roßnagel, Alexander ; Söllner, Matthias ; et al.:Handlungsbroschüre. Anforderungs- und Entwurfsmuster zur rechtsverträglichen und qualitätszentrierten Gestaltung kontextsensitiver Applikationen (AnEkA). Handlungsempfehlungen zur Gestaltung von Anforderungs- und Entwurfsmustern. vol. 10. Kassel, Germany : ITeG Technical Reports, 2020 — ISBN 978-3-7376-0920-3
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Im Rahmen des DFG-geförderten Projekts AnEkA „Anforderungs- und Entwurfsmuster zur rechtsverträglichen und qualitätszentrierten Gestaltung kontextsensitiver Applikationen“ wurden Anforderungs- und Entwurfsmuster für die Gestaltung rechtsverträglicher, aber gleichermaßen qualitätszentrierter smarter persönlicher Assistenten erstellt. Neben einem umfangreichen Musterkatalog hat das Projektteam ein Vorgehen für die Erstellung von Entwurfsmustern erarbeitet. Die Handlungsbroschüre soll zunächst eine Einführung in die Thematik der rechtsverträglichen und qualitätszentrierten Entwicklung geben und das Potential des Einsatzes von Anforderungs- und Entwurfsmustern aufzeigen. Darauf aufbauend werden das methodische Vorgehen, wie Muster zu erstellen sind, sowie die im Projekt erstellten Anforderungs- und Entwurfsmuster anhand von einigen Beispielen inhaltlich vorgestellt. Abschließend werden Handlungsempfehlungen für die Erstellung und den Einsatz von Anforderungs- und Entwurfsmustern gegeben. Im Anhang werden alle im Forschungsprojekt AnEkA erarbeiteten Anforderungs- und Entwurfsmuster zur weiteren Nutzung zur Verfügung gestellt.
Knote, Robin ; Thies, Laura Friederike ; Söllner, Matthias ; Jandt, Silke ; Leimeister, Jan Marco ; Roßnagel, Alexander: Rechtsverträgliche und qualitätszentrierte Gestaltung für „KI made in Germany“. In: Informatik Spektrum (2020)
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Künstlich intelligente (KI) Systeme erfreuen sich immer größerer Beliebtheit. Insbesondere smarte persönliche Assistenten (SPAs) von Amazon, Google und vielen weiteren verzeichnen ein stetiges Marktwachstum. Den vielfältigen Potenzialen dieser KI-Systeme stehen jedoch auch zahlreiche Risiken gegenüber. Berichte von Datenpannen und -lecks häufen sich und haben bei Nutzern eine zunehmende Skepsis zur Folge, was zu einem gespaltenen Bild von KI in der Gesellschaft beiträgt. Diesem Problem stellt sich das Forschungsprojekt AnEkA mit einem interdisziplinären Gestaltungsansatz. Auf Basis von Rechts- und Qualitätszielen werden Anforderungen an rechtsverträgliche und qualitativ hochwertige SPAs abgeleitet. Zusätzlich werden Gestaltungsalternativen identifiziert, die diese Anforderungen unter Berücksichtigung möglicher Zielkonflikte umsetzen. Ergebnis des Projekts sind Entwurfsmuster, die Entwicklern von SPAs dabei helfen sollen, rechtsverträgliche und qualitativ hochwertige SPAs und KI-Systeme im Allgemeinen zu entwickeln. Dadurch soll das Alleinstellungsmerkmal einer „KI made in Germany“ entstehen, welche sowohl die Bedürfnisse von Nutzern berücksichtigt und sie ebenfalls bestmöglich vor Risiken der Systemnutzung schützt. Dieser Beitrag erläutert das interdisziplinäre Vorgehen anhand eines Szenarios zur Nutzung von SPAs.
Kropf, Jonathan: Stratifikation in der digitalen Bewertungsgesellschaft. Eine Fallanalyse der Folge "Nosedive" aus der SF-Serie "Black Mirror". In: Berliner Debatte Initial vol. 31 (2020), Nr. 1, pp. 18–31
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Kunz, Michael Marcin ; Bretschneider, Ulrich ; Leimeister, Jan Marco:Reward-based Crowdfunding.. In: Kollmann, T. (ed.): Handbuch Digitale Wirtschaft. 1. ed.. Wiesbaden, Germany : Springer Gabler, 2020 — ISBN 978-3-658-17290-9, pp. 755–787
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Crowdfunding unterstützt neue Start-ups dabei, den Finanzierungsbedarf der ersten Unternehmensphase zu überwinden. Dieser Bedarf wird über die Unterstützung einer Vielzahl an Geldgebern mit kleinen Geldbeträgen realisiert. Das Ziel dieses Beitrages ist, den aktuellen Stand der Erfolgsfaktorenforschung im reward-based Crowdfunding zu reflektieren und auf Basis einer qualitativen Expertenbefragung um noch nicht betrachtete Aspekte zu erweitern. Durch dieses Vorgehen erhalten Projektinitiatoren einen Katalog an die Hand, der ihnen dabei hilft die Erfolgschancen eigener Kampagnen zu steigern.
Dickhaut, Ernestine ; Thies, Laura Friederike ; Janson, Andreas ; Roßnagel, Alexander ; Leimeister, Jan Marco:Judging Alexa - Towards a New Methodology to Capture the Legal Compatibility of Conversational Speech Agents.. In: Conference on Conversational User Interfaces (CUI), 2020, pp. 1–4
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Higher legal standards with regards to data protection of individuals such as EU-GDPR are increasing the pressure on developers of IT artifacts. This is especially prevalent when considering conversational speech agents (CSA) that are collecting data in new ways, and thus, are oftentimes producing conflicts with existing law regulations. For this purpose, we introduce the law simulation method which is a well-known evaluation method among law researchers for capturing legal compatibility of IT artifacts such as CSA. With this rigorous method, we are able to derive actionable guidance for CSA developers to evaluate developer efforts for increasing legal compatibility. To illustrate our methodological approach, we describe in this workshop paper key steps of the method with respect to the evaluation of CSA. We discuss how this can serve as the foundation for a new evaluation method of legally compatible systems in information systems.
Draude, Claude ; Klumbytė, Goda ; Lücking, Phillip ; Treusch, Pat: Situated algorithms: a sociotechnical systemic approach to bias. In: Online Information Review vol. 44 (2020), Nr. 2, pp. 325–342
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Lurtz, Helmut: Positionspapier des Rates der Europäischen Union zur Anwendung der DS-GVO. In: ZD-Aktuell (2020), p. 06978
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Dankwa, Nana Kesewaa:Diversifying Smart Home Contexts.. In: Proceedings of 18th European Conference on Computer-Supported Cooperative Work : European Society for Socially Embedded Technologies (EUSSET), 2020
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Advances in smart home technological innovation over the years has seen an increase in consumer interests. However, research contexts for smart homes tend to skew towards “traditional”living and housing situations. Through my Ph.D. research, I raise awareness of the need to consider other user contexts and living situations. I do this by exploring opportunities for smart home innovation with elderly women who live alone. I work with the elderly women to understand their values, needs, and collaboratively create new smart home devices. The outcome of my research would be smart home devices that support the lives and contexts of elderly women living alone.
Hanika, Tom ; Schneider, Friedrich Martin ; Stumme, Gerd: Intrinsic Dimension of Geometric Data Sets. In: Accepted for publication in: Tohoku Mathematical Journal (2020). — cite arxiv:1801.07985Comment: v2: completely rewritten 28 pages, 3 figures, 2 tables
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The curse of dimensionality is a phenomenon frequently observed in machine learning (ML) and knowledge discovery (KD). There is a large body of literature investigating its origin and impact, using methods from mathematics as well as from computer science. Among the mathematical insights into data dimensionality, there is an intimate link between the dimension curse and the phenomenon of measure concentration, which makes the former accessible to methods of geometric analysis. The present work provides a comprehensive study of the intrinsic geometry of a data set, based on Gromov's metric measure geometry and Pestov's axiomatic approach to intrinsic dimension. In detail, we define a concept of geometric data set and introduce a metric as well as a partial order on the set of isomorphism classes of such data sets. Based on these objects, we propose and investigate an axiomatic approach to the intrinsic dimension of geometric data sets and establish a concrete dimension function with the desired properties. Our mathematical model for data sets and their intrinsic dimension is computationally feasible and, moreover, adaptable to specific ML/KD-algorithms, as illustrated by various experiments.
Lurtz, Helmut ; Bicer, E: Im Auge des Datenschutzes - Haushaltsausnahme bei Datenbrillen. In: ZD-Aktuell (2020), p. 07115
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Britton, Loren ; Pritchard, Helen: For CS. In: Interactions vol. 27. New York, NY, USA, Association for Computing Machinery (2020), Nr. 4, pp. 94–98
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Jakob, Stefan ; Jahl, Alexander ; Baraki, Harun ; Geihs, Kurt:A Self-Organizing Multi-Agent Knowledge Base.. In: The IEEE 2020 International Conference on Web Services (ICWS 2020) : IEEE, 2020
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Lena, Löber: NORA: Gestaltung von kollaborativen kontextsensitiven mobilen Anwendungen. In: ZD-Aktuell (2020), p. 07387
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Lurtz, Helmut ; Stroscher, Jan-Philipp: Enquete-Kommission: Wie steht es um die „Künstliche Intelligenz“ in Deutschland?. In: ZD-Aktuell (2020), p. 07440
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Lamla, Jörn:Gesellschaft als digitale Sozialmaschine? Infrastrukturentwicklung von der Plattformökonomie zur kybernetischen Kontrollgesellschaft.. In: Hentschel, A. ; Hornung, G. ; Jandt, S. (eds.): Mensch – Technik – Umwelt: Verantwortung für eine sozialverträgliche Zukunft. Festschrift für Alexander Roßnagel zum 70. Geburtstag. Baden-Baden : Nomos, 2020, pp. 477–496
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Müller, Johannes ; Geminn, Christian: Germany’s Search for a Viable Tracing App (2020)
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Grotherr, Christian ; Li, Mahei ; Schymanietz, Martin ; Fritzsche, Albrecht ; Semmann, Martin ; Peters, Christoph ; Böhmann, Tilo ; Leimeister, Jan Marco ; et al.:Gestaltungsdimensionen der Digitalisierung – Wie Dienstleistungssysteme den Wandel antreiben und welche Faktoren eine Rolle spielen.. In: Dienstleistungsinnovationen durch Digitalisierung. Berlin/Heidelberg, Germany : Springer Gabler, 2020 — ISBN 978-3-662-62143-1, pp. 277–325
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In Zeiten der Digitalisierung nimmt Informationstechnologie eine Schlüsselrolle im Modernisierungsprozess von Unternehmen ein. Zugleich bringt die Softwareeinführung das Risiko mit sich, den intendierten Nutzen nicht zu realisieren. Durch eine Dienstleistungssystem-Perspektive erscheint die Einbindung der Nutzer in die Softwareeinführung ein vielversprechender Ansatz. Das Ziel des Projektes ExTEND – Engineering von Dienstleistungssystemen für nutzergenerierte Dienstleistungen ist es daher, Nutzer in die Softwareeinführung nach dem Leitbild „Dienstleistungen von Nutzern für Nutzer“ zu befähigen, aktiv einen Beitrag zu der Gestaltung der Arbeitsumgebung zu leisten. Hieraus resultieren IT-gestützte Servicebausteine, in denen Nutzer sich gegenseitige Hilfestellungen geben und Handlungsalternativen in der Softwareeinführung aufzeigen. Durch ein Pilotierungsvorgehen werden die Servicebausteine in drei Anwendungsfeldern entwickelt und pilotiert. Hieraus resultiert evidenzbasiertes Gestaltungswissen für die Entwicklung von nutzergenerierten Dienstleistungen. Darüber hinaus wird ein Mehrebenenmodell für die Gestaltung von Dienstleistungssystemen vorgestellt, welches die Entwicklung von Dienstleistungssystemen unterstützt und über traditionelle Ansätze des Service Engineerings hinausgeht.
Scheiner, Nicolas ; Kraus, Florian ; Wei, Fangyin ; Phan, Buu ; Mannan, Fahim ; Appenrodt, Nils ; Ritter, Werner ; Dickmann, Jurgen ; et al.:Seeing Around Street Corners: Non-Line-of-Sight Detection and Tracking In-the-Wild Using Doppler Radar.. In: IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) : IEEE, 2020
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Gruhl, Christian ; Schmeißing, Jörn ; Tomforde, Sven ; Sick, Bernhard:Normal-Wishart clustering for novelty detection.. In: Workshop on Self-Improving System Integration (SISSY), ACSOS : IEEE, 2020, pp. 64–69
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Müller, Johannes ; Geminn, Christian: COVID-19 and Data Protection in Germany (2020)
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Draude, Claude:"...but how do you formalize it?" - Gender Studies als konstruktive Intervention in der Informatik.. In: Bieling, T. (ed.): Gender (&) Design. Positionen Zur Vergeschlechtlichung in Gestaltungskulturen, Design Meanings. vol. 2 : MIMESIS EDIZIONI, 2020 — ISBN 9788869772429
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Knote, R. ; Janson, A. ; Söllner, M. ; Leimeister, J. M.: Value Co-Creation in Smart Services: A Functional Affordances Perspective on Smart Personal Assistants. In: Journal of the Association for Information Systems (2020)
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Draude, Claude:"Boundaries Do Not Sit Still" from Interaction to Agential Intra-action in HCI.. In: Kurosu, M. (ed.): Human-Computer Interaction. Design and User Experience, Lecture Notes in Computer Science. vol. 12181. Copenhagen, Denmark : Springer International Publishing, 2020 — ISBN 978-3-030-49059-1, pp. 20–32
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We live in a world that is increasingly shaped through computational technology. The expansion and pervasiveness of computing brings along opportunities and challenges for the field of HCI. New application domains evolve and technological advances pose novel interaction possibilities. But with computing's shaping power comes also the need for increased responsibility and attention to the societal, political and ecological impact of technology. In this conceptual paper, new materialist thinking is employed to locate these societal etc. aspects as inextricably enmeshed within computing research and development. New materialism is a multi-vocal, cross-disciplinary field of doing-thinking. In contrast to Western dichotomic tradition, a monistic, post-anthropocentric perspective is provided and matter as an active agent in world-making is acknowledged. Central to this paper is the questioning of the human and computer dichotomy at the core of the field of HCI. For this, a material-semiotic perspective on human-computer interaction is elaborated upon. Furthermore, the paradigm of interaction is revisited and reworked as a conception of agential intra-action, a term coined by physicist Karen Barad. From this interrogation of dichotomies and the notion of intra-action follow further conceptual shifts that are discussed as productive for the future of HCI, namely responsibility as specification of ethical agency and performativity in contrast to representationalism.
Scharei, Kristina ; Heidecker, Florian ; Bieshaar, Maarten: Knowledge Representations in Technical Systems - A Taxonomy.. In: CoRR vol. abs/2001.04835 (2020)
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Blohm, Ivo ; Zogaj, Shkodran ; Bretschneider, Ulrich ; Leimeister, Jan Marco: How to Manage Crowdsourcing Platforms Effectively. In: NIM Marketing Intelligence Review vol. 12, Sciendo (2020), Nr. 1, pp. 18–23
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Crowdsourced tasks are very diverse – and so are platform types. They fall into four categories, each demanding different governance mechanisms. The main goal of microtasking crowdsourcing platforms is the scalable and time-efficient batch processing of highly repetitive tasks. Crowdsourcing platforms for information pooling aggregate contributions such as votes, opinions, assessments and forecasts through approaches such as averaging, summation, or visualization. Broadcast search platforms collect contributions to solve tasks in order to gain alternative insights and solutions from people outside the organization, and are particularly suited for solving challenging technical, analytical, scientific, or creative problems. Open collaboration platforms invite contributors to team up to jointly solve complex problems in cases where solutions require the integration of distributed knowledge and the skills of many contributors. Companies establishing crowdsourcing platforms of any type should continuously monitor and adjust their governance mechanisms. Quality and quantity of contributions, project runtime, or the effort for conducting the crowdsourcing project may be good starting points.
Müller, Johannes: Nutzung von Mobildaten zur Eindämmung der Pandemie - Anforderungen an eine datenschutzrechtsverträgliche technische Gestaltung. In: Multimedia und Recht (2020), pp. 355–360
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Müller, Johannes: Daten gegen die Pandemie – TK-Verkehrsdaten und technische Mittel: Rechtsstaat und Ausnahmezustand?. In: ZD-Aktuell (2020), p. 07072
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Hagendorff, T. ; Geminn, C. ; Lamla, J. ; Karaboga, M. ; Krämer, N. ; Nebel, M. ; Uhlmann, M.:Risiken künstlicher Intelligenz für die menschliche Selbstbestimmung : Forum Privatheit, 2020
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Lamla, Jörn:Verbraucherteilhabe durch digitale Bewertungspraktiken? Zur Soziologie der Infrastrukturen der Verbraucherpartizipation.. In: Hellmann, K.-U. ; Klein, A. ; Baule, B. (eds.): Verbraucherpolitik von unten. Konsumsoziologie und Massenkultur. Wiesbaden : Springer VS, 2020 — ISBN 978-3-658-29754-1, pp. 87–100
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Janson, Andreas ; Söllner, Matthias ; Leimeister, Jan Marco: Ladders for Learning: Is Scaffolding the Key to Teaching Problem Solving in Technology-mediated Learning Contexts?. In: Academy of Management Learning & Education (AMLE) vol. 19, Academy of Management (2020), Nr. 4, pp. 439–468
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The success of innovative teaching/learning approaches aiming to foster problem solving in management education depends on useful and easy-to-use IT components in the learning process. However, the complexity of problem solving in self-regulated learning approaches may overwhelm the learner and can lead to unsatisfying learning outcomes. Research suggests the implementation of technology-enhanced scaffolds as a mechanism to guide the learners in their individual problem-solving process to enhance their learning outcomes. We present a theoretical model based on adaptive structuration theory and cognitive load theory that explains how technology-enhanced scaffolding contributes to learning outcomes. We test the model with a fully randomized between-subject experiment in a flipped classroom for management education focusing on individual problem solving. Our results show that technology-enhanced scaffolding contributes significantly to the management of cognitive load as well as to learning process satisfaction and problem-solving learning outcomes. Thereby, our paper provides new conceptual and empirically tested insights for a better understanding of technology-enhanced scaffolds and their design to assist problem solving and its respective effects in flipped classrooms for management education.
Scheiner, Nicolas ; Schumann, Ole ; Kraus, Florian ; Appenrodt, Nils ; Dickmann, Jürgen ; Sick, Bernhard:Off-the-shelf sensor vs. experimental radar - How much resolution is necessary in automotive radar classification?. In: IEEE International Conference on Information Fusion (FUSION) : IEEE, 2020, pp. 1–8
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Kröger, Jacob Leon ; Lutz, Otto Hans-Martin ; Mueller, Florian H.:What Does Your Gaze Reveal About You? On the Privacy Implications of Eye Tracking.. In: M., F. ; M., Ö. ; E., L. ; S., K. ; S., F. (eds.): Privacy and Identity Management. Data for Better Living: AI and Privacy. Privacy and Identity 2019. IFIP Advances in Information and Communication Technology. vol. 576. Cham : Springer, 2020
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Nebel, Maxi:Datenschutzrechtliche Verantwortlichkeit in Zeiten von Social Networks. Abgrenzung zwischen gemeinsamer und kollektiver Verantwortlichkeit von Anbietern und Nutzern.. In: Hentschel, A. ; Hornung, G. ; Jandt, S. (eds.): Mensch – Technik – Umwelt: Verantwortung für eine sozialverträgliche Zukunft, Festschrift für Alexander Roßnagel zum 70. Geburtstag : Nomos, 2020
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Dickhaut, Ernestine ; Thies, Laura Friederike ; Janson, Andreas ; Roßnagel, Alexander ; Leimeister, Jan Marco:Towards a New Methodology to Capture the Legal Compatibility of Conversational Speech Agents.. In: Conference on Conversational User Interfaces (CUI), 2020
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Higher legal standards with regards to the data protection of individuals such as the EU General Data Protection Regulation (EU-GDPR) are increasing the pressure on developers of IT artifacts. This is especially prevalent when considering conversational speech agents (CSA), which are collecting data in new ways and thus are oftentimes producing conflicts with existing law regulations. For this purpose, we introduce the law simulation method, which is a well-known evaluation method among law researchers for capturing the legal compatibility of IT artifacts such as CSA. With this rigorous method, we are able to derive actionable guidance for CSA developers to evaluate developer efforts for increasing legal compatibility. To illustrate our methodological approach, we describe in this paper key steps of the method with respect to the evaluation of CSA. We briefly discuss how this procedure can serve as the foundation for a new evaluation method of legally compatible systems in information systems.
Durward, David ; Blohm, Ivo ; Leimeister, Jan Marco: The Nature of Crowd Work and its Effects on Individuals’ Work Perception. In: Journal of Management Information Systems (JMIS) vol. 37 (2020), Nr. 1, pp. 66–95
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Crowd work reflects a new form of gainful employment on the Internet. We study how the nature of the tasks being performed and financial compensation jointly shape work perceptions of crowd workers in order to better understand the changing modes and patterns of digital work. Surveying individuals on 23 German crowd working platforms, this work is the first to add a multi-platform perspective on perceived working conditions in crowd work. We show that crowd workers need rather high levels of financial compensation before task characteristics become relevant for shaping favorable perceptions of working conditions. We explain these results by considering financial compensation as an informational cue indicating the appreciation of working effort that is internalized by well-paid crowd workers. Resulting boundary conditions for task design are discussed. These results help us understand when and under what conditions crowd work can be regarded as a fulfilling type of employment in highly developed countries.
Geminn, Christian ; Roßnagel, Alexander:Datenschutz-Grundverordnung verbessern! – Änderungsvorschläge aus Sicht der Verbraucher. vol. DuD-Fachbeiträge. Wiesbaden : Springer Vieweg, 2020
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Dierks, C. ; Roßnagel, A. (eds.):Sekundärnutzung von Sozial- und Gesundheitsdaten – Rechtliche Rahmenbedingungen, TMF-Schriftenreihe. vol. 17. Berlin : Medizinisch Wissenschaftliche Verlagsgesellschaft, 2020
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Hornung, G. ; Gilga, C.: Einmal öffentlich - für immer schutzlos? Die Zulässigkeit der Verarbeitung öffentlicher personenbezogener Daten. In: Computer und Recht (2020), pp. 367–379
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Hegenberg, J. ; Krause, P. ; Schmidt, L.:Verbesserung eines omnidirektionalen Laufeingabegerätes für die virtuelle Realität.. In: Gesellschaft für Arbeitswissenschaft e. V. (ed.): Digitaler Wandel, digitale Arbeit, digitaler Mensch? 66. Kongress der Gesellschaft für Arbeitswissenschaft (Berlin 2020). Dortmund : GfA-Press, 2020, pp. 1–6 (B.1.2)
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Ein Prototyp eines omnidirektionalen Laufeingabegerätes wurde insbesondere hinsichtlich des Regelungskonzeptes auf Basis von Empfehlungen aus der Literatur optimiert. Der Beitrag stellt die relevanten Rahmenbedingungen des Einsatzes solcher Systeme vor und berichtet über die Ergebnisse einer vergleichenden Studie, die auf die Verbesserung der Nutzung, insbesondere bzgl. der Regelung der translatorischen und der rotatorischen Bewegungsrichtung, abzielt. Dabei wurden zwei neuentwickelte Regelungsvarianten der bestehenden Lösung des Herstellers gegenübergestellt. Die Effekte wurden mit gängigen Standardfragebögen sowie Befragungsinstrumenten zu anderen Laufeingabegeräten untersucht. Es konnte ein signifikanter Vorteil des neuen Regelungskonzeptes belegt werden.
Janson, Andreas ; Thiel de Gafenco, Marian ; Klusmeyer, Jens ; Leimeister, Jan Marco:Aufbau und Ablauf des kuLtig-Projektes.. In: Leimeister, J. M. ; Klusmeyer, J. (eds.): Export beruflicher Aus- und Weiterbildung - Entwicklung und Evaluation kultursensitiver Lerndienstleistungen am Beispiel China. Wiesbaden, Deutschland : SpringerGabler, 2020 — ISBN 978-3-7376-0628-8, pp. 13–17
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Roßnagel, Alexander ; Löber, Lena:Desinformation aus der Perspektive des Rechts.. In: Steinebach, M. ; Bader, K. ; Rinsdorf, L. ; Krämer, N. ; Roßnagel, A. (eds.): Desinformation aufdecken und bekämpfen. Interdisziplinäre Ansätze gegen Desinformationskampagnen und für Meinungspluralität. Baden-Baden, 2020, pp. 149–194
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Pham Minh, T. ; Kottke, D. ; Tsarenko, A. ; Gruhl, C. ; Sick, B.:Improving Self-Adaptation For Multi-Sensor Activity Recognition with Active Learning.. In: International Joint Conference on Neural Networks (IJCNN) : IEEE, 2020
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Knote, Robin ; Thies, Laura Friederike ; Söllner, Matthias ; Jandt, Silke ; Leimeister, Jan Marco ; Roßnagel, Alexander: Rechtsverträgliche und qualitätszentrierte Gestaltung für „KI made in Germany“. In: Informatik Spektrum (2020)
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Künstlich intelligente (KI) Systeme erfreuen sich immer größerer Beliebtheit. Insbesondere smarte persönliche Assistenten (SPAs) von Amazon, Google und vielen weiteren verzeichnen ein stetiges Marktwachstum. Den vielfältigen Potenzialen dieser KI-Systeme stehen jedoch auch zahlreiche Risiken gegenüber. Berichte von Datenpannen und -lecks häufen sich und haben bei Nutzern eine zunehmende Skepsis zur Folge, was zu einem gespaltenen Bild von KI in der Gesellschaft beiträgt. Diesem Problem stellt sich das Forschungsprojekt AnEkA mit einem interdisziplinären Gestaltungsansatz. Auf Basis von Rechts- und Qualitätszielen werden Anforderungen an rechtsverträgliche und qualitativ hochwertige SPAs abgeleitet. Zusätzlich werden Gestaltungsalternativen identifiziert, die diese Anforderungen unter Berücksichtigung möglicher Zielkonflikte umsetzen. Ergebnis des Projekts sind Entwurfsmuster, die Entwicklern von SPAs dabei helfen sollen, rechtsverträgliche und qualitativ hochwertige SPAs und KI-Systeme im Allgemeinen zu entwickeln. Dadurch soll das Alleinstellungsmerkmal einer „KI made in Germany`` entstehen, welche sowohl die Bedürfnisse von Nutzern berücksichtigt und sie ebenfalls bestmöglich vor Risiken der Systemnutzung schützt. Dieser Beitrag erläutert das interdisziplinäre Vorgehen anhand eines Szenarios zur Nutzung von SPAs.
Nebel, Maxi: Tagungsbericht zur Jahreskonferenz des Forum Privatheit „Aufwachsen in überwachten Umgebungen – Wie lässt sich Datenschutz in Schule und Kinderzimmer umsetzen?“. In: ZD-aktuell (2020), p. 06929
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Nebel, Maxi:Persönlichkeitsschutz in Social Networks, Technische Unterstützung eines grundrechtskonformen Angebots von Social Networks : Springer Vieweg, 2020
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Mrass, Volkmar ; Peters, Christoph ; Leimeister, Jan Marco:Crowdworking Platforms in Germany: Business Insights from a Study & Implications for Society.. In: Jahrestagung des Verbands der Hochschullehrer für Betriebswirtschaft (VHB). Frankfurt am Main, Germany, 2020
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The competitiveness of organizations and whole economies depends on how successfully they are able to cope with the digital transformation and new technological trends. In the area of digital work, crowdworking platforms emerged as intermediaries that support a new form of service delivery and work organization. Despite their increasing importance, there is only few data about key characteristics of such platforms such as number of employees or revenues. Furthermore, extant data often focusses only on a few platforms, mostly from the US. Based on results from a study about the 32 crowdworking platforms that have their headquarters or a physical location in Germany, we provide data that for the first time allows to draw conclusions for the “total population” of crowdworking platforms in a defined larger region (Germany as Europe’s largest and the world fourth largest economy). These results are valuable for various stakeholders from economy and politics, allowing them to make economic or political decisions on a more informed basis. Furthermore, we develop an evaluation framework that depicts the implications for these groups along the dimensions costs, flexibility, “humanity”, quality, and time: Crowdworking platforms on the one hand provide several opportunities: Individuals gain more flexibility, groups can benefit from additional contributors, organizations have the potential to process work faster and cheaper. On the other hand, this novel form of work organization also includes potential threats for all groups: Low payments and ‘tayloristic’ work, insufficient quality or irritation of internal employees. Based on 12 interviews with company representatives and crowdworkers, we evaluate implications of this novel form of work organization for society.
Leimeister, Jan Marco ; Durward, David ; Simmert, Benedikt:Die interne Crowd - Mitarbeiter/innen im Spannungsfeld neuer Arbeitsformen. Study der Hans-Böckler-Stiftung. vol. Band 436. Dusseldorf, Germany, 2020 — ISBN 978-3-86593-351-5
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Lowry, Paul Benjamin ; Petter, Stacie ; Leimeister, Jan Marco: Desperately Seeking the Artefacts and the Foundations of Native Theory in Gamification Research: Why Information Systems Researchers Can Play a Legitimate Role in this Discourse and How They Can Better Contribute. In: European Journal of Information Systems (EJIS) vol. 29 (2020), Nr. 4, pp. 609–620
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Gamification has taken the world by storm. Regardless of where one stands on gamification, it can aptly be described as interesting but also galvanising and controversial. We are pleased to write a provocative editorial to kick off this special issue on gamification in the European Journal of Information Systems. Our position is that the information systems (IS) discipline has the opportunity to play an outsized role in navigating the discourse of gamification-an increasingly influential, interdisciplinary discourse in research and practice. We assert that active engagement in the gamification discourse is a compelling IS research opportunity, given the growing, globalised platform-based economy. Consequently, we frame our editorial with the knowledge we have gained as IS researchers who engage in gamification research in an effort to share what we have learned about artefacts and original theorisation with both IS and gamification scholars. We do so by proposing a pragmatic path forward for gamification and IS researchers who wish to contribute to these related discourses, both individually and in the form of the combined IS-gamification discourse. We propose a framework of three practices that we are confident can more systematically generate the key theoretical artefacts needed to generate native theory in the IS-gamification discourse and hence to improve the associated research and practice. Foundational to this framework is our paradigm, which advocates active engagement with IS-gamification research and practice, as bridged by a strong focus on design thinking and generating artefacts that are foundational to theory generation.
Lurtz, Helmut: Bewertungstechnologien im Beschäftigungsverhältnis – eine (erste) datenschutzrechtliche Bewertung. In: ZD-Aktuell (2020), p. 06926
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Leimeister, Jan Marco ; Klusmeyer, Jens:Export beruflicher Aus- und Weiterbildung - Entwicklung und Evaluation kultursensitiver Lerndienstleistungen am Beispiel China. Wiesbaden, Deutschland : SpringerGabler, 2020 — ISBN 978-3-658-31500-9
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Im diesem Sammelband adressieren die Autoren charakteristische Herausforderungen des Exports von digitalen Lerndienstleistungen im Bereich der beruflichen Aus- und Weiterbildung. Sie stellen disziplinübergreifende Methoden und Modelle vor, mit denen die erforderliche Flexibilität auf Seiten der Dienstleister in der Planung, Vermarktung und Evaluation für einen wachsenden internationalen Markt erreicht wird. Im Verbundprojekt kuLtig wurden anhand kulturangepasster, digitaler Lerndienstleistungen für die Aus- und Weiterbildung in China die Praktikabilität und Transferfähigkeit der entwickelten Lösungen aufgezeigt und wissenschaftlich begleitet.
Leimeister, Jan Marco ; Klusmeyer, Jens:Hintergrund und Zielsetzung des kuLtig-Projektes.. In: Leimeister, J. M. ; Klusmeyer, J. (eds.): Export beruflicher Aus- und Weiterbildung - Entwicklung und Evaluation kultursensitiver Lerndienstleistungen am Beispiel China. Wiesbaden, Deutschland : SpringerGabler, 2020 — ISBN 978-3-7376-0628-8, pp. 3–11
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He, Yujiang ; Henze, Janosch ; Sick, Bernhard:Continuous Learning of Deep Neural Networks to Improve Forecasts for Regional Energy Markets.. In: International Federation of Automatic Control (IFAC) World Congress : Elsevier, 2020, pp. 12175–12182
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He, Y. ; Henze, J. ; Sick, B.:Forecasting Power Grid States for Regional Energy Markets with Deep Neural Networks.. In: International Joint Conference on Neural Networks (IJCNN) : IEEE, 2020
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Gilga, Carolin: EDSB: Überwachung sozialer Medien - Social Media Monitoring. In: ZD-Aktuell (2020), p. 07022
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Gilga, Carolin: Beschäftigtendatenschutz und Covid-19: Daten sicher im Homeoffice?. In: ZD-Aktuell (2020), p. 07113
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Dankwa, Nana Kesewaa:Investigating Smart Home Needs for Elderly Women Who Live Alone. An Interview Study.. In: Stephanidis, C. ; Antona, M. ; Ntoa, S. (eds.): HCI International 2020 - Late Breaking Posters - 22nd International Conference, HCI 2020, Copenhagen, Denmark, July 19-24, 2020, Proceedings, Part II, Communications in Computer and Information Science. vol. 1294 : Springer, 2020 — ISBN 978-3-030-60702-9, pp. 32–38
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Identity aspects such as gender, race, culture, and socio-economic status should be considered when technologies are designed with and for persons [9]. HCI research in ageing populations can benefit from considering the complexity of identity, use and context of older persons. This short paper draws attention to gender as an aspect of identity in working with ageing populations. It presents results from an interview study with elderly women who live alone in Germany. This study is part of a larger research project dedicated to innovating smart home technologies with and for elderly women who live alone. The research project has comprised of an “exploratory getting-to know each other” session, use experience of a smart speaker and interview studies. This paper presents insights from semi-structured interviews with 7 elderly women who live alone. These insights are also presented as design considerations for smart home technology for elderly women living alone. The study is the basis for further work with the elderly women, which are co-creation sessions to design smart home devices and develop prototypes.
Schmidt, L. ; Funk, J. ; Klingauf, A.: FachWerk. In: Schlussbericht des BMBF-Projektes, Schlussbericht des BMBF-Projektes.. Kassel (2020)
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Bläsing, Lisa Marie ; Draude, Claude: Geschlechterforschungen zwischen Reflexion und Reproduktion bestehender Bilder von Informatik. In: ZSE Zeitschrift für Soziologie der Erziehung und Sozialisation vol. 40, Beltz Juventa (2020), Nr. 3, pp. 276–295
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Seit Jahrzehnten wird die geschlechtliche Verteilung von Studierenden in MINT bzw. der Informatik aus unterschiedlichen Perspektiven in den Blick genommen. Aus Sicht geschlechtertheoretischer Forschungen werden dafür unter anderem geschlechtliche Codierungen der Fächer gesehen, in denen sich alltägliches Geschlechterwissen und strukturelle Ungleichheiten manifestieren. In Bildern und Annahmen, die Schüler*innen und Studierende über die jeweiligen Fächer haben, werden diese vergeschlechtlichten Codierungen sichtbar. Der Beitrag fasst Ergebnisse ausgewählter Literatur zu Bildern von Informatik zusammen. Sie zeigen, wie die Befragten Informatik als männliches, weißes und westliches Fach konstruieren, welches Zugangs- und Aufstiegsmöglichkeiten mindestens einschränkt und ‚das Andere‘, also beispielsweise Frauen/Weiblichkeit, alles nicht-westliche, nicht-weiße – bzw. was diesen Begriffen zugeschrieben wird – abwertet. Beiträge zu Informatikbildern laufen jedoch Gefahr, bestehende Bilder zu reproduzieren. Deshalb werden in der untersuchten Literatur Leerstellen und Perspektiven aufgezeigt, die zu einer intersektionalen, reflektierten Forschung über Informatik(bilder) beitragen können.
Geminn, Christian: Japan: Evaluation des Act on the Protection of Personal Information. In: Zeitschrift für Datenschutz (2020), p. XVI-XVII
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Johannes, P.: USA: Mögliche Auswirkungen der Präsidentschaft Joe Bidens auf den Datenschutz. In: ZD-Aktuell (2020), p. 07441
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Eilers, Karen ; Simmert, Benedikt ; Peters, Christoph:Doing Agile vs. Being Agile - Understanding Their Effects to Improve Agile Work.. In: International Conference on Information Systems (ICIS) : ICIS Proceedings, 2020
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Companies show a growing demand in corporate agility. The effects of so-called doing and being agile are the key for positive outcomes in agile work. Scrum is used by companies to make them more agile. The present study examines the interaction of doing agile (leadership, work design) and being agile (individual characteristics, empowerment) in relation to satisfaction and commitment based on an online survey of 129 Scrum development team members. The results show that work design and leadership impact empowerment and that the latter leads to both job satisfaction and commitment. Team orientation has no effect. Openness for new actions moderates the relationship between work design and the outcome variables. The results can be used in practice to increase the satisfaction and commitment within Scrum. They provide an insight into the impact structure within Scrum and are thus also the basis for future research.
Johannes, P.: GEMIMEG II: Sensoren und digitale Zwillinge – sichere und robuste kalibrierte Messsysteme. In: ZD-Aktuell (2020), p. 07280
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Ochs, Carsten ; Büttner, Barbara ; Lamla, Jörn: Trading Social Visibility for Economic Amenability: Data-Based Value Translation on a ‘Health- and Fitness-Platform’. In: Science, Technology & Human Values vol. 46 (2020), Nr. 3, pp. 480–506
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Simmert, Benedikt ; Peters, Christoph:Leaders, Empower Your Workforce! Analyzing Leadership in Internal Crowd Work.. In: Academy of Management Annual Meeting (AOM), 2020
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New digital and agile forms of work organization require new leadership styles and competencies. Still, the understanding of leadership in these new forms of work is in its infancy. We select internal crowd work (ICW) as one, clearly defined new form of work and increase understanding of leadership in this context by analyzing four distinct cases of ICW. Based on qualitative interviews, we describe how employees perceive psychological empowerment and develop workforce agility through different leadership styles in ICW. As our main contribution, we detail and extend existing research regarding ICW and empowerment by identifying structural antecedents that affect psychological empowerment of ICW as well as consequences of an empowered workforce in ICW. Thereby, we indicate that an empowered workforce is an important factor for the implementation of workforce agility in ICW. Moreover, regarding leadership, we explain the design and changes of leadership in ICW in detail and explicate a new requirement for leaders in agile and digital form of work organization: the flexible handling of different context-specific situations, projects and tasks. For this purpose, we develop a theoretical model that describes the effects of shared leadership, empowering leadership and e-leadership on workforce agility mediated by an empowered workforce.
Johannes, P.:Art. 24, 25 BayDSG.. In: Schröder (ed.): Landesdatenschutzgesetz Bayern. Baden-Baden, 2020
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Janson, A. ; Ernst, S. J. ; Söllner, M.:Kulturelle Werte im Rahmen der Aneignung von IT-gestütztem Lernen.. In: Export beruflicher Aus- und Weiterbildung - Entwicklung und Evaluation kultursensitiver Lerndienstleistungen am Beispiel China. Wiesbaden, Deutschland : SpringerGabler, 2020, pp. 21–46
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Li, Mahei Manhei ; Bronner, Esther ; Peters, Christoph ; Leimeister, Jan Marco:Künstliche Intelligenz und menschliche Kompetenz zur Automatisierung und Personalisierung von Dienstleistungen am Beispiel des Support.. In: Bruhn, M. ; Hadwich, K. (eds.): Automatisierung und Personalisierung von Dienstleistungen. Wiesbaden, Deutschland : Springer Gabler, 2020 — ISBN 978-3-658-30167-5
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Der Beitrag beleuchtet Möglichkeiten, wie der zunehmenden Komplexität digitaler Dienstleistungen und den einhergehenden Herausforderungen für den IT-Support mithilfe von künstlicher Intelligenz, begegnet werden kann, um personalisiert Nutzerprobleme durch das Automatisierungspotenzial von Chatbots, lösen zu können. Der Beitrag stellt somit die Grundlagen dar, um theoriegeleitet ein Support-System zu entwickeln, das klassischen Support mit Crowdsupport kombiniert und um einem Chatbot ergänzt. Es werden Potenziale aufgezeigt die Effizienz und Qualität im IT-Support zu erhöhen, IT-Mitarbeitende zu entlasten sowie Mitarbeitenden in die Support-Struktur miteinzubeziehen.
Barev, Torben Jan:Theory-Motivated Design for Developing Privacy Nudges.. In: International Conference on Wirtschaftsinformatik (WI), 2020
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Using digital technologies, various data traces are left behind for collection, storage and analysis. Potential risks that the availability of personal information entails, like the vulnerability to discrimination, commercial exploitation and unwanted monitoring, is ubiquitous. Hence, modern IT systems are needed that ensure employees' privacy and informational self-determination. One mechanism to achieve this is the implementation of privacy nudges in modern working systems. Nudging is a mechanism to influence decisions in a predictable way. In this context, privacy nudging concepts should influence employees` behavior in digital working environments in such a way that they make more data protection-friendly decisions. In this research project I am focusing on building an integrative understanding of effective nudging in privacy-related decisions. From this, design knowledge for better privacy nudges in digital work systems should be derived, which can pave the way for more privacy-sensitive IT systems. Successfully implemented privacy nudges can increase acceptance, trust and usage of modern IT-systems. Privacy sensitive IT-systems can then constitute a competitive advantage for the company. On the side of society, informational self-determination can be ensured and the potential risks that the availability of personal information entails can be reduced.
Janson, Andreas ; Mauritz, Carsten ; Weinert, Tim ; Thiel de Gafenco, Marian ; KoLeArn, V. (ed.):Digitaler Wandel in der Arbeitswelt - Status Quo der Aus- und Weiterbildung in China, 2020
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Oeste-Reiß, Sarah ; Schöbel, Sofia ; Söllner, Matthias ; Leimeister, Jan Marco:Chunking Big Journeys into Smaller Trips: Combining Peer Creation and Gamification to Design a Continuing Education Concept for Energy Consultants.. In: vom Brocke, J. ; Hevner, A. ; Maedche, A. (eds.): Design Science Research. Cases : Springer, Cham, 2020 — ISBN 978-3-030-46780-7, pp. 229–259
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Designing socio-technical systems like IT-supported teaching-learning systems that motivate learners while at the same time stimulating knowledge transfer has become challenging. Teaching-learning techniques that consist of a social context that interacts with and is supported by information technologies are often bundled in a holistic design artifact. To explore a socio-technical design artifact, one must recognize that it consists of several sub-artifacts, each of which must have its own design approach. We introduce the research approach of designing and piloting the IT-supported teaching-learning concept, sensitized to the demand of distinguishing among several socio-technical sub-artifacts. We present the purpose of our design science research (DSR) journey and differentiate among several design artifacts, each of which make prescriptive knowledge contributions and, thus, represent diverse types of theory in information systems. The first artifact is a Peer Creation Process for enhancing knowledge transfer and documentation, which contributes to a nascent design theory. The second artifact is a User-Centered Process to gamify LMSs, which contributes to a theory of design and action. We describe the DSR journey that was part of the project StaySmart, the purpose of which was to design and evaluate a teaching-learning concept for knowledge workers. Teaching-learning artifacts usually have one purpose: to design and evaluate the learning experience. However, designing such artifacts requires identifying their sub-purposes, which leads to designing and evaluating several design artifacts, which we call teaching-learning techniques, so a holistic design artifact usually has several design artifacts. Therefore, the project makes distinct prescriptive knowledge contributions and has the potential to create distinct types of theory in information systems. Our case provides guidance in developing artifacts for a holistic design artifact and in understanding how such artifacts can be separated into sub-artifacts that have their own design science approaches.
Johannes, P.: Sicherheit der Datenverarbeitung nach § 64 BDSG im Vergleich zur JI-Richtlinie und DS-GVO. In: ZD-Aktuell (2020), p. 06875
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Felde, Maximilian ; Hanika, Tom ; Stumme, Gerd: Null Models for Formal Contexts. In: Information vol. 11, Multidisciplinary Digital Publishing Institute (2020), Nr. 3, p. 135
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Alt, Rainer ; Leimeister, Jan Marco ; Priemuth, Thomas ; Sachse, Stephan ; Urbach, Nils ; Wunderlich, Nico: Software-Defined Business – Implications for IT Management. In: Business & Information Systems Engineering vol. 62 (2020), Nr. 6, pp. 609–621
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In August 2011 the Wall Street Journal published an essay by Netscape co-founder Marc Andreessen titled “Why software is eating the world”. He argues that “more and more major businesses and industries are being run on software and delivered as online services—from movies to agriculture to national defense. Many of the winners are Silicon Valley-style entrepreneurial technology companies that are invading and overturning established industry structures. […] Companies in every industry need to assume that a software revolution is coming.” (Andreessen 2011). By pointing at examples in various industries from automotive and banking to defense, healthcare, music, retailing, and telecommunications, he illustrates the transformational power of information technology (IT) and software in particular. The discussion is not new and dates back to the early 2000s. For example, Power and Jerjian (2001, p. 99) mention for Heathrow airport that “software is the thing that runs the airport” and in a biological analogy they consider software to be the nervous system. Meanwhile, the large “big tech” software companies (e.g., GAFAM, BATX) have impressively confirmed this development: their digital platforms have spread over many industries with an impact on processes (e.g., interaction and transaction), on products (e.g., app stores and services) as well as on business models (e.g., streaming and as-a-service models). The recent tech-portmanteaus (e.g., Fintech, Insurtech, Regtech) also reflect the attitude of these startup businesses, which perceive themselves rather as IT (tech) companies than as representatives of the industry they are aiming to transform (Meijer and Kapoor 2014). In the same vein, the high valuation of Tesla Motors since early 2020 spurred an intense debate of whether the company is in the automotive or the tech business (e.g., Klebnikov 2020). Obviously, these developments have numerous implications for the field of IT management, which were discussed during a panel at the 82nd Annual German Business Researcher Conference on March 18, 2020. The panel builds on prior discussions regarding the impact of digitalization on IT management. For example, a BISE discussion section in 2017 addressed the implications of the broad trend of digitalization for the field of Business Information Systems Engineering and pointed out new topics, such as digital innovation and transformation, which complement existing competencies (e.g., in modeling and managing enterprise IT). The discussion revealed strong arguments for the strategic role of IT and that business and IT departments as well as academia and practice need to collaborate more closely (Legner et al. 2017). While these statements adopted a rather broad perspective, another discussion section focused on “the impact of digitalization on the IT department” (Urbach et al. 2019). It mentioned important and intricate challenges: On the one hand, IT departments need to move closer to the business units and, on the other hand, they need to constantly update their technological skills in an environment with a high pace of technological innovation. In a world “eaten by software” these developments are equally prevalent and lead to the question how businesses address these challenges, in particular, how they assess the dominant role of software, how activities in managing the software lifecycle should be organized, and what the implications are for the BISE community.
Lücking, Phillip:Automatisierte Ungleichheit - Wie algorithmische Entscheidungssysteme gesellschaftliche Machtverhältnisse (re)produzieren.. In: netzforma e.V. (ed.): Wenn KI, dann feministisch. Berlin, 2020, pp. 65–76
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Johannes, P.: Gegenüberstellung – Schadensersatz nach BDSG, JI-Richtlinie und DS-GVO. In: ZD-Aktuell (2020), p. 06925
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Klumbytė, Goda ; Britton, Loren: Said the Bot to the Computer: 57th collected significant residue transmission between MIT and SliMoSA3. In: Arts of the Working Class, The New Serenity. (2020), Nr. 120, pp. 26–27
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Johannes, P.: Bedarf an und Inhalt eines Gesetzes für Corona-Tracing-Apps. In: ZD-Aktuell (2020), p. 07114
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Bachmann, Marek ; Morold, Michel ; Engel, Sebastian ; Götz, Johann ; David, Klaus:Camera vs. Cooperative VRU Collision Avoidance.. In: 2020 IEEE 91st Vehicular Technology Conference (VTC2020-Spring), 2020, pp. 1–5
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Johannes, P.:§ 40 DSG NRW.. In: Pabst ; Schwartmann (eds.): Datenschutzgesetz NRW, 2020
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Bile, Tamer ; Roßnagel, Alexander ; Geminn, Christian ; Nebel, Maxi ; Hallinan, D.:"Evaluation of the General Data Protection Regulation", Policy Paper, Schriftenreihe Forum Privatheit. Karlsruhe : Fraunhofer ISI, 2020
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Bereswill, Mechthild ; Draude, Claude ; Kuhn, Hans-Peter: Ungleiche Präferenzen? Zum Zusammenhang von Studienfachwahl und Geschlechterzuschreibungen. In: ZSE Zeitschrift für Soziologie der Erziehung und Sozialisation vol. 40, Beltz Juventa (2020), Nr. 3, pp. 227–230
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Einführung in den Themenschwerpunkt
Johannes, P.:§§ 25, 39, 40, 44 - 48, 58, 59, 62 - 72, 77, 78 HDSIG.. In: Roßnagel, A. (ed.): Landesdatenschutzgesetz Hessen mit Informationsfreiheitsrecht. Baden-Baden, 2020
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Simmert, Benedikt ; Eilers, Karen ; Peters, Christoph ; Leimeister, Jan Marco:Agile Arbeitsorganisation fordert und fördert Empowerment - Zusammenspiel von sozialen und technischen Elementen in interner Crowd Work.. In: Boes, A. ; Gül, K. ; Kämpf, T. ; Lühr, T. (eds.): Empowerment in der agilen Arbeitswelt. Analysen, Handlungsorientierungen und Erfolgsfaktoren. Freiburg, Germany : Haufe, 2020 — ISBN 978-3-648-13589-1, pp. 53–64
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Mack, N. A. ; Schmidt, L.:Gebrauchstauglichkeit einer Augmented-Reality-Reiseassistenzanwendung und Vergleich mit herkömmlicher Unterstützung in einem Echtweltszenario.. In: Gesellschaft für Arbeitswissenschaft e. V. (ed.): Digitaler Wandel, digitale Arbeit, digitaler Mensch? 66. Kongress der Gesellschaft für Arbeitswissenschaft (Berlin 2020). Dortmund : GfA-Press, 2020, pp. 1–6 (B.3.4)
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Im Rahmen des Projektes RadAR+ wurde eine Augmented-Reality-(AR)-Reiseassistenzanwendung für eine Datenbrille entwickelt und prototypisch umgesetzt, welche ein Routing für den öffentlichen Verkehr sowie eine AR-Fußgängernavigation vereint und dadurch eine vollständige Navigation vom Start- zum Zielort ermöglicht. Der Prototyp wurde in einem Echtweltszenario mit 37 Probanden vergleichend zur herkömmlichen Unterstützung evaluiert. Es konnte gezeigt werden, dass die Gebrauchstauglichkeit der AR-Reiseassistenzanwendung von den Probanden als "gut" bewertet wird. Des Weiteren ist feststellbar, dass keine signifikanten Unterschiede zwischen der subjektiv empfundenen Beanspruchung beim Prototyp und der herkömmlichen Unterstützung bestehen. Jedoch gab es eine signifikant geringere Schrittzahl bei der Gruppe, die das Reiseassistenzsystem nutzte.
Bretschneider, Ulrich ; Ebel, Philipp Alexander ; Leimeister, Jan Marco: Open Business Model Innovation via the Internet: How Digital Technologies Can Improve the Quality of Business Models. In: International Journal of Innovation and Technology Management (IJITM) vol. 18 (2020), Nr. 2, p. 2040004
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Increasingly, firms follow the strategy of open business model innovation via the Internet. In this form of digital innovation management, firms make use of Internet platforms that allow them to integrate external customers and other stakeholders for (re-)innovation of their business models. However, the used IT tools on these Internet platforms suffer from not being able to merge the content of multiple users in an adequate way, thus the resulting business models suffer from low degrees of quality. Against this backdrop, in this research, we propose to equip these Internet platforms with a wiki technology. This would allow users to add to each other’s content, to make changes or to correct mistakes. In our action design research (ADR), we could empirically validate that this leads to a higher quality in terms of business models’ degree of elaboration. Since research that focusses on the design of Internet-based open BMI is still neglected, our research contributes to the literature base by being the first that answers ongoing open calls for research on this phenomenon of interest.
Johannes, P.: Zertifizierung von Datenverarbeitungsvorgängen bei der Polizei. In: Die Polizei (2020), Nr. 10, pp. 409 – 415
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Klumbyte, Goda ; Lücking, Phillip ; Draude, Claude:Reframing AX with Critical Design: The Potentials and Limits of Algorithmic Experience as a Critical Design Concept.. In: Proceedings of the 11th Nordic Conference on Human-Computer Interaction: Shaping Experiences, Shaping Society, NordiCHI ’20. Tallinn, Estonia : Association for Computing Machinery, 2020 — ISBN 9781450375795
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This paper investigates how Algorithmic Experience (AX) can be used as a conceptual tool to help make algorithms and experiences of them visible through systems design and how interactions might be designed in order to elicit conscious and critical examination. Can algorithmic systems be positioned as critical artifacts? If so, to what extent? The paper reflects on interactions between users and the Social Privilege Estimator– a social scoring system based on facial recognition and classification that was built as a critical design artifact in order to raise awareness of existing inequalities and adverse effects of facial recognition systems. We argue that critical design can and should be used for AX and human-algorithm interaction design in order to support algorithmic literacy and critical capacity of the users and we suggest some conceptual reframings of AX towards this goal.
Klumbytė, Goda ; Britton, Loren: Abstracting Otherwise: In Search for a Common Strategy of Arts and Computing. In: ASAP/Journal vol. 5, Project Muse (2020), Nr. 1, pp. 19–43
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Schöbel, Sofia ; Janson, Andreas ; Söllner, Matthias: Capturing the complexity of gamification elements: a holistic approach for analysing existing and deriving novel gamification designs. In: European Journal on Information Systems (EJIS) vol. 29 (2020), Nr. 6, pp. 641–668
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Gamification is a well-known approach that refers to the use of elements to increase the motivation of information systems users. A remaining challenge in gamification is that no shared understanding of the meaning and classification of gamification elements currently exists. This impedes guidance concerning analysis and development of gamification concepts, and often results in non-effective gamification designs. The goal of our research is to consolidate current gamification research and rigorously develop a taxonomy, as well as to demonstrate how a systematic classification of gamification elements can provide guidance for the gamification of information systems and improve understanding of existing gamification concepts. To achieve our goal, we develop a taxonomic classification of gamification elements before evaluating this taxonomy using expert interviews. Furthermore, we provide evidence as to the taxonomy’s feasibility using two practical cases: First, we show how our taxonomy helps to analyse existing gamification concepts; second, we show how our taxonomy can be used for guiding the gamification of information systems. We enrich theory by introducing a novel taxonomy to better explain the characteristics of gamification elements, which will be valuable for both gamification analysis and design. This paper will help guide practitioners to select and combine gamification elements for their gamification concepts.
Roßnagel, Alexander:Verbraucherrechte im Datenschutz verwirklichen – ein Überblick.. In: Brönneke, T. ; Willburger, A. ; Bietz, S. (eds.): Verbraucherrechte verwirklichen! Der richtige Instrumentenmix für einen wirkungsvollen Verbraucherrechtsvollzug. Baden-Baden, 2020, pp. 299–323
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Elshan, Edona ; Ebel, Philipp:Let’s Team Up: Designing Conversational Agents as Teammates.. In: International Conference on Information Systems (ICIS), 2020
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The success of projects is, amongst others, highly depended on the team members skillset and ability to collaborate. Hence, education has to undergo a change to keep up with the shift in the compositions of skills and knowledge needed for students. To overcome scalability issues, we propose to develop Timmy-a conversational agents (CAs) that acts as a team member. As there is a lack of concrete design knowledge concerning CAs as peers in teams, we conduct a design science research project. Based on requirements from scientific literature and expert interviews, we develop a concise set of design principles for designing CAs in peer roles in educational settings. Furthermore, we present an initial proof of concept evaluation. These insights will support researchers and practitioners to understand better how CAs can be systematically built to ameliorate the collaborative skill of students in teamwork settings.
Schöbel, Sofia ; Barev, Torben Jan ; Janson, Andreas ; Hupfeld, Felix ; Leimeister, Jan Marco:Understanding User Preferences of Digital Privacy Nudges – A Best-Worst Scaling Approach.. In: Hawaii International Conference on System Sciences (HICSS), 2020
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Digital nudging in privacy has become more important to protect users of information systems while working with privacy-related data. Nudging is about altering a user’s behavior without forbidding any options. Several approaches exist to “nudge” users to change their behavior. Regarding the usage of digital privacy nudges, research still has to understand the meaning and relevance of individual nudges better. Therefore, this paper compares the preferences of users for different digital nudges. To achieve this goal, it presents the results of a so-called best-worst scaling. This study contributes to theory by providing a better understanding of user preferences regarding design variations of digital nudges. We support practitioners by giving implications on how to design digital nudges in terms of user preferences.
Meier, David ; Hartmann, Gregor ; Völker, Jens ; Viefhaus, Jens ; Sick, Bernhard:Reconstruction of offsets of an electron gun using deep learning and an optimization algorithm.. In: Advances in Computational Methods for X-Ray Optics V : SPIE, 2020, pp. 71–77
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Bereswill, Mechthild ; Draude, Claude ; Kuhn, Hans-Peter ; Bläsing, Lisa Marie ; Lumpp, Gabriele ; Spitzner, Josefine: Ungleiche Präferenzen? Zum Zusammenhang von Studienfachwahl und Geschlecht aus sozialisations- und geschlechtertheoretischer Perspektive am Beispiel des Studienfachs Informatik. In: ZSE Zeitschrift für Soziologie der Erziehung und Sozialisation vol. 40, Beltz Juventa (2020), Nr. 3, pp. 231–253
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Insgesamt zeigen sich bei der Studienfachwahl in Deutschland teilweise große Unterschiede zwischen den Geschlechtern. So studieren Frauen deutlich seltener als Männer Fächer im MINT-Bereich, Männer dagegen deutlich seltener Fächer im sozialen Bereich. Der Beitrag stellt die Frage, warum solche Ungleichheiten trotz zahlreicher bildungspolitischer Interventionen stabil bleiben und sich auf der Ebene der individuellen Entscheidungen entsprechend konventionelle Orientierungen zeigen. Zunächst werden verschiedene Einflussfaktoren hinsichtlich der Studienfachwahl unter einer sozialisations- und entwicklungstheoretischen Perspektive in den Blick genommen. Im Anschluss daran werden die beharrlichen Unterschiede in den individuellen Orientierungen und Entscheidungen von Mädchen und Jungen aus einer geschlechtertheoretischen Perspektive als strukturelle Ungleichheiten eingeordnet. Zuletzt werden die mit diesen strukturellen Ungleichheiten zusammenhängenden Dynamiken von Öffnungen und Schließungen eines sozialen Feldes am Beispiel des Fachs Informatik weiter konkretisiert und es wird gezeigt, dass Veränderungen nur greifen können, wenn eine Fachkultur sich im Hinblick auf systematische Öffnungen wandelt. Im Fazit wird dafür plädiert, die verschiedenen Forschungsstränge und Theorieperspektiven, die im Beitrag aufgenommen werden, in Zukunft noch stärker zu verbinden.
Bile, Tamer ; Ebbers, F. ; Karaboga, M. ; Bremert, B.:Datenschutz in der Blockchain - Diskussion der Herausforderungen und Lösungsansätze auf Basis der Blockchain-Konsultation der Bundesregierung. Karlsruhe : Fraunhofer ISI, 2020. — Schriftenreihe Forum Privatheit
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Johannes, P.:Vertrauensdienste oder Bärendienste? Rechtssicherheit von Kundenportalen Blockchain & Co durch oder neben der eIDAS-VO.. In: Hentschel ; Hornung ; Jandt (eds.): Mensch – Technik – Umwelt: Verantwortung für eine sozialverträgliche Zukunft. Baden-Baden, 2020, pp. 587–602
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Roßnagel, Alexander: Der Datenschutz von Kindern in der Datenschutz-Grundverordnung – Vorschläge für die Evaluierung und Fortentwicklung. In: ZD (2020), Nr. 2, pp. 88–92
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Schäfermeier, Bastian ; Stumme, Gerd ; Hanika, Tom: Topic Space Trajectories: A case study on machine learning literature (2020). — cite arxiv:2010.12294Comment: 36 pages, 8 figures
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The annual number of publications at scientific venues, for example, conferences and journals, is growing quickly. Hence, even for researchers becomes harder and harder to keep track of research topics and their progress. In this task, researchers can be supported by automated publication analysis. Yet, many such methods result in uninterpretable, purely numerical representations. As an attempt to support human analysts, we present \emph{topic space trajectories, a structure that allows for the comprehensible tracking of research topics. We demonstrate how these trajectories can be interpreted based on eight different analysis approaches. To obtain comprehensible results, we employ non-negative matrix factorization as well as suitable visualization techniques. We show the applicability of our approach on a publication corpus spanning 50 years of machine learning research from 32 publication venues. Our novel analysis method may be employed for paper classification, for the prediction of future research topics, and for the recommendation of fitting conferences and journals for submitting unpublished work.
Funk, J. ; Schmidt, L.:Evaluation einer Augmented-Reality-Anleitung für eine komplexe Montageaufgabe.. In: Zender, R. ; Ifenthaler, D. ; Leonhardt, T. ; Schumacher, C. (eds.): DELFI 2020: 18. Fachtagung Bildungstechnologien (Online 2020), Lecture Notes in Informatics (LNI) - Proceedings. Bonn : Gesellschaft für Informatik, 2020, pp. 25–36 *** Best Paper Award ***
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Die vorliegende Studie vergleicht den Einsatz einer markerbasierten AR-Anleitung mit einer in der manuellen Montage üblichen Papieranleitung. Es wurden die Hypothesen geprüft, ob sich die Anleitungsart auf die Montagezeit, die Anzahl der Fehler, die Gebrauchstauglichkeit und die Beanspruchung der Mitarbeiter auswirkt. Statt mit studentischen Stichproben und künstlichen Montageaufgaben (z. B. Legobaugruppen) wurde die Studie mit 16 Auszubildenden an einem realen Arbeitsplatz für die Montage von Notgriffen zur Türentriegelung in Schienenfahrzeugen durchgeführt. Es wurden fünf Montagedurchgänge durchgeführt. Die Montagezeit und die gemachten Fehler wurden aus Videoaufzeichnungen ermittelt. Die Gebrauchstauglichkeit (SUS) und die Beanspruchung (NASA-TLX) wurden mit Fragebögen erhoben. Nachdem die AR-Gruppe zu Beginn langsamer montierte als die Papier-Gruppe, war diese im fünften Durchgang signifikant schneller. Die vergleichbare Fehleranzahl, Gebrauchstauglichkeit und Beanspruchung machen markerbasierte AR-Anwendungen besonders durch den leichten Einstieg und die geringen Kosten interessant für die Wissensvermittlung in der manuellen Montage.
Simmert, Benedikt ; Eilers, Karen ; Peters, Christoph ; Leimeister, Jan Marco:Interne Crowd Work als Baustein einer Empowerment-orientierten Arbeitsorganisation.. In: Daum, M. ; Wedel, M. ; Zinke-Wehlmann, C. ; Ulbrich, H. (eds.): Gestaltung vernetzt-flexibler Arbeit - Beiträge aus Theorie und Praxis für die digitale Arbeitswelt. Berlin : Springer Vieweg, 2020 — ISBN 978-3-662-61559-1, pp. 209–226
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Interne Crowd Work gewinnt im Hinblick auf eine agilitätsfördernde Arbeitsorganisation immer mehr an Bedeutung. Das Empowerment der Mitarbeitenden kann dabei als ein zentraler Erfolgsfaktor angesehen werden. Um das Empowerment in interner Crowd Work zielgerichtet zu untersuchen und die Wahrnehmung aus Sicht der Mitarbeitenden sowie die Effekte auf Ebene der Gesamtorganisation zu verstehen und beschreiben zu können, analysieren wir die interne Crowd Work mit Hilfe einer literaturbasierten erweiterten Wirtschaftlichkeitsbetrachtung sowie empirisch anhand von sechs Fallstudien. Auf organisationaler Ebene stehen im Ergebnis dabei insbesondere die Themen Organisationskultur, abteilungsübergreifende Zusammenarbeit und die Gestaltung von Aufgaben und Projekten im Fokus. Auf individueller Ebene können vornehmlich die selbstbestimmte Wahl von Arbeitsaufgaben inkl. selbstorganisierter Arbeitsprozesse sowie neue Führungsansätze als wesentliche Stellschrauben identifiziert werden.
Funk, J. ; Schmidt, L.:Vergleichende Usability-Evaluation einer Lernplattform.. In: Gesellschaft für Arbeitswissenschaft e. V. (ed.): Digitaler Wandel, digitale Arbeit, digitaler Mensch? 66. Kongress der Gesellschaft für Arbeitswissenschaft (Berlin 2020). Dortmund : GfA-Press, 2020, pp. 1–6 (C.8.1)
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Im Rahmen der hier vorgestellten Studie wurden die Gebrauchstauglichkeit, die Gestaltung und der Aufbau einer zuvor an die Bedürfnisse der Lernenden angepassten Lernplattform bei Nutzung mit typischen Aufgaben, wie der Anmeldung mit Login-Daten, im Vergleich zu der unveränderten Moodle-Lernplattform untersucht. Neben Fragebögen für die Gebrauchstauglichkeit (SUS), die visuelle Gestaltung (VisAWI) und den Aufbau und die Struktur der Lernplattform wurden die Aufgabenerfüllung (Effektivität) und die dafür benötigten Zeiten (Effizienz) sowie teilweise Blickbewegungsdaten erfasst. Mit 29 Studienteilnehmenden zeigten sich keine signifikanten Unterschiede.
Geminn, Christian: USA: Entwurf eines Data Accountability and Transparency Act of 2020 vorgelegt. In: ZD-Aktuell (2020), Nr. 13, p. 07221
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Söllner, Matthias:Same Same But Different? A Two-Foci Perspective on Trust in Information Systems.. In: Proceedings of the 53rd Hawaii International Conference on System Sciences : Hawaii International Conference on System Sciences, 2020
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Trust is one of the most important factors driving the adoption and use of information systems. The goal of this paper is to provide a first evaluation of a conceptual piece claiming a) that users distinguish between their trust in an IS and the provider of this IS and b) that both kinds of trust are important for the success sustainable success of IS providers. To evaluate the claims, a research model is developed and evaluated using data of 234 students during the introduction of a new IS at an European university. The results provide support for both claims, since the correlation between the two trust constructs is low, and the nomological networks differ. Regarding the importance of both constructs, trust in the IS is found to have an important impact of the use of the IS, whereas trust in the provider is a major driver of the users’ loyalty.
Simmert, Benedikt ; Reinhard, Marie-Therese ; Eilers, Karen ; Peters, Christoph ; Leimeister, Jan Marco:Handlungsbroschüre: Interne Crowd Work als agile Form der Arbeitsorganisation - Handlungsempfehlungen zum Empowerment-orientierten Ansatz ( Nr. 9). vol. ITeG Technical Reports: Wissenschaftliches Zentrum für Informationstechnik-Gestaltung (ITeG) an der Universität Kassel. 9. ed.. Kassel, Germany : Kassel University Press, 2020 — ISBN 978-3-7376-5100-4
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Lipusch, Nikolaus ; Dellermann, Dominik ; Bretschneider, Ulrich ; Ebel, Philipp ; Leimeister, Jan Marco: Designing for Crowdfunding Co-creation: How to Leverage the Potential of Backers for Product Development. In: Business & Information Systems Engineering (BISE) vol. 62 (2020), Nr. 6, pp. 483–499
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Crowdfunding is now established as a valid alternative to conventional methods of financing for startups. Unfortunately, to date, research has not investigated how backers can be encouraged to support entrepreneurs beyond funding. The aim of this study is to design and evaluate certain design elements for reward-based crowdfunding platforms that can engage backers in co-creational activities for product development. The study uses a design science research (DSR) approach and the theoretical concept of psychological ownership to inform a new design and then experimentally test that design. The results suggest that the derived artifacts positively influence co-creational activities in crowdfunding and that feelings of psychological ownership play an important mediating role. The contribution of this research is threefold. First, this paper extends crowdfunding’s application potential from merely a method of financing to a method of value creation with customers for product development. Second, the study advances DSR by applying a new DSR approach that shows whether a design performs as hypothesized by theory. Third, this research allows the exploration of backers’ individual behavior as opposed to their collective behavior.
Bretschneider, Ulrich:Which Motivations Boost Idea Quality? Exploring the Impact of Customers’ Motives for Participating in Virtual Ideas Communities on Ideation Outcome.. In: European Conference on Information Systems (ECIS). Marrakesch, Marokko, 2020. — Best Research-In-Progress Paper Award
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For practice it is important to leverage ideas of high quality from Virtual Ideas Communities (VIC). Therefore, firms that run such VIC have a strong interest in understanding which factors impact customers’ ideation outcome. This research investigates the influence of customers’ motivation factors for developing ideas on the quality of their ideas. So far, empirical studies that provide evidence on this association are neglected, although these insights would be highly beneficial for firms in their role as operator of VIC. Knowing the factors that have a positive influence will provide valuable insights into how to design effective incentive strategies that attract corresponding customer motivations and, in turn, will lead to higher levels of idea quality. In this research-in-progress paper we build a theoretical model explaining which of customers‘ motives for developing ideas have a positive impact on their ideation outcome.
Klumbytė, Goda ; Lücking, Phillip ; Draude, Claude:Reframing AX with Critical Design: The Potentials and Limits of Algorithmic Experience as a Critical Design Concept.. In: Proceedings of the 11th Nordic Conference on Human-Computer Interaction: Shaping Experiences, Shaping Society, NordiCHI ’20. New York, NY, USA : Association for Computing Machinery, 2020 — ISBN 9781450375795, pp. 1–12
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This paper investigates how Algorithmic Experience (AX) can be used as a conceptual tool to help make algorithms and experiences of them visible through systems design and how interactions might be designed in order to elicit conscious and critical examination. Can algorithmic systems be positioned as critical artifacts? If so, to what extent? The paper reflects on interactions between users and the Social Privilege Estimator– a social scoring system based on facial recognition and classification that was built as a critical design artifact in order to raise awareness of existing inequalities and adverse effects of facial recognition systems. We argue that critical design can and should be used for AX and human-algorithm interaction design in order to support algorithmic literacy and critical capacity of the users and we suggest some conceptual reframings of AX towards this goal.
Barev, Torben Jan ; Janson, Andreas ; Leimeister, Jan Marco:Designing Effective Privacy Nudges in Digital Environments: A Design Science Research Approach.. In: International Conference on Design Science Research in Information Systems and Technology (DESRIST) : Springer, Cham - Vinton G. Cerf Award., 2020 — ISBN 978-3-030-64822-0, pp. 388–393
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When using digital technologies, various data traces are left behind for collection, storage and analysis. Innovative solutions for information systems are needed that mitigate privacy risks and foster information privacy. One mechanism to achieve this is using privacy nudges. Nudges are a concept from behavioral eco-nomics to influence individual’s decisions. However, many nudges show low or at least less effects than choice architects hope for and expect. Therefore, this de-sign science research (DSR) project focusses on developing evidence-based de-sign principles for privacy nudges to improve their effectiveness and pave the way for more privacy sensitive IT systems. In this context, we adopt a DSR ap-proach from Vaishnavi & Kuechler. From a theoretical perspective, we are con-tributing to the discussion of what drives privacy sensitive behavior. We extend generic nudge design models, making them applicable in the context of data dis-closure. For practitioners, we provide guidance on how to design and implement effective privacy nudges in the user interface of digital work systems.
Johannes, P. ; D., Zwirner: Gegenüberstellung HDSIG zu BDSG, DS-GVO und JI-RL. In: ZD-Aktuell (2020), p. 06977
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Pejović, V. ; Gjoreski, M. ; Anderson, C. ; David, K. ; Luštrek, M.: Toward Cognitive Load Inference for Attention Management in Ubiquitous Systems. In: IEEE Pervasive Computing vol. 19 (2020), Nr. 2, pp. 35–45
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Miedzianowski, Nadine: Arbeitsrecht und Covid-19. In: ZD-Aktuell (2020), p. 07071
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Henze, Janosch ; Schreiber, Jens ; Sick, Bernhard:Representation Learning in Power Time Series Forecasting.. In: Pedrycz, W. ; Chen, S.-M. (eds.): Deep Learning: Algorithms and Applications : Springer International Publishing, 2020 — ISBN 978-3-030-31760-7, pp. 67–101
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Sixt, M.:Whistleblowing im Spannungsfeld von Macht, Geheimnis und Information. Wiesbaden : Springer Vieweg, 2020
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Miedzianowski, Nadine:Rechtliche Anforderungen an ein System zur Erreichbarkeitssteuerung.. In: Daum, M. ; Wedel, M. ; Zinke-Wehlmann, C. ; Ulbrich, H. (eds.): Gestaltung vernetzt-flexibler Arbeit. Beiträge aus Theorie und Praxis für die digitale Arbeitswelt. Berlin, 2020
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Schöbel, Sofia ; Janson, Andreas ; Jahn, Katharina ; Kordyaka, Bastian ; Turetken, Ozgur ; Djafarova, Naza ; Saqr, Mohammad ; Wu, Dezhi ; et al.: A Research Agenda for the Why, What, and How of Gamification Designs Results on an ECIS 2019 Panel. In: Communications of the Association for Information Systems vol. 46 (2020), Nr. 1, pp. 706–721
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This report summarizes the discussion in a panel session on gamification designs at the 2019 European Conference on Information Systems in Stockholm, Sweden. The panel explores a research agenda for gamification design. The “what, why, and how” are considered to analyze the current state of the art of gamification research. An adapted defini-tion of gamification is presented as one outcome of the workshop to better describe what gamification is and what it can be used for. “Why” and “how” to employ gamification are discussed for different contexts. This can be used to gamify information systems, identity outcomes that are addressed by gamification concepts, and explore new ways of how to gamify. Overall, the panel presents new areas for future research and practice by identifying innovative ways to bring existing gamification concepts to a more impactful level.
Nolan, Sam ; Rumi, Shakila Khan ; Anderson, Christoph ; David, Klaus ; Salim, Flora D.: Exploring the Impact of COVID-19 Lockdown on Social Roles and Emotions while Working from Home.. In: CoRR vol. abs/2007.12353 (2020)
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Kress, V. ; Schreck, S. ; Zernetsch, S. ; Doll, K. ; Sick, B.:Pose Based Action Recognition of Vulnerable Road Users Using Recurrent Neural Networks.. In: IEEE Symposium Series on Computational Intelligence (SSCI) : IEEE, 2020, pp. 2723–2730
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Hentschel, A. ; Hornung, G. ; Jandt, S. (eds.):Mensch – Technik – Umwelt: Verantwortung für eine sozialverträgliche Zukunft, Festschrift für Alexander Roßnagel zum 70. Geburtstag : Nomos, 2020
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Ernst, Sissy-Josefina ; Nölker, Julia ; Janson, Andreas:Leitfaden für kultursensitives E-Learning - Entwicklung auf Basis qualitativer Interviews.. In: Leimeister, J. M. ; Klusmeyer, J. (eds.): Export beruflicher Aus- und Weiterbildung - Entwicklung und Evaluation kultursensitiver Lerndienstleistungen am Beispiel China. Wiesbaden, Deutschland : SpringerGabler, 2020 — ISBN 978-3-7376-0628-8, pp. 47–67
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Schomberg, S ; Stroscher, Jan-Philipp: Corona-Virus - eine Herausforderung auch für den Datenschutz?. In: ZD-Aktuell (2020), p. 07074
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Moerman, Ingrid ; Zeghlache, Djamal ; Shahid, Adnan ; Santos, Joao F. ; DaSilva, Luiz A. ; David, Klaus ; Farscrotu, John ; de Ridder, Ad ; et al.:Mandate-driven Networking Eco-system: A Paradigm Shift in End-to-End Communications.. In: 2020 2nd 6G Wireless Summit (6G SUMMIT), 2020, pp. 1–6
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Ernst, Sissy-Josefina ; Janson, Andreas:Mobile Kompetenzentwicklung am Beispiel der „MoKe“ App.. In: Leimeister, J. M. ; Klusmeyer, J. (eds.): Export beruflicher Aus- und Weiterbildung - Entwicklung und Evaluation kultursensitiver Lerndienstleistungen am Beispiel China. Wiesbaden, Deutschland : SpringerGabler, 2020 — ISBN 978-3-7376-0628-8, pp. 71–88
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Hühnlein, D. ; Hühnlein, T. ; Hornung, G. ; Strack, H.:Towards Universal Login.. In: Open Identity Summit. Bonn : Gesellschaft für Informatik e.V., 2020, pp. 193–200
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Knote, Robin ; Thies, Laura Friederike ; Söllner, Matthias ; Jandt, Silke ; Leimeister, Jan Marco ; Roßnagel, Alexander: Rechtsverträgliche und qualitätszentrierte Gestaltung für ‚KI made in Germany‘ – Ein interdisziplinärer Ansatz am Beispiel smarter persönlicher Assistenten. In: Informatik Spektrum (2020)
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Künstlich intelligente (KI) Systeme erfreuen sich immer größerer Beliebtheit. Insbesondere smarte persönliche Assistenten (SPAs) von Amazon, Google und vielen weiteren verzeichnen ein stetiges Marktwachstum. Den vielfältigen Potenzialen dieser KI-Systeme stehen jedoch auch zahlreiche Risiken gegenüber. Berichte von Datenpannen und -lecks häufen sich und haben bei Nutzern eine zunehmende Skepsis zur Folge, was zu einem gespaltenen Bild von KI in der Gesellschaft beiträgt. Diesem Problem stellt sich das Forschungsprojekt AnEkA mit einem interdisziplinären Gestaltungsansatz. Auf Basis von Rechts- und Qualitätszielen werden Anforderungen an rechtsverträgliche und qualitativ hochwertige SPAs abgeleitet. Zusätzlich werden Gestaltungsalternativen identifiziert, die diese Anforderungen unter Berücksichtigung möglicher Zielkonflikte umsetzen. Ergebnis des Projekts sind Entwurfsmuster, die Entwicklern von SPAs dabei helfen sollen, rechtsverträgliche und qualitativ hochwertige SPAs und KI-Systeme im Allgemeinen zu entwickeln. Dadurch soll das Alleinstellungsmerkmal einer „KI made in Germany`` entstehen, welche sowohl die Bedürfnisse von Nutzern berücksichtigt und sie ebenfalls bestmöglich vor Risiken der Systemnutzung schützt. Dieser Beitrag erläutert das interdisziplinäre Vorgehen anhand eines Szenarios zur Nutzung von SPAs.
Geihs, Kurt ; Baraki, Harun ; de la Oliva, Antonio:Performance analysis of edge-fog-cloud architectures in the Internet of Things.. In: Proceedings of the 13th IEEE/ACM International Conference on Utility and Cloud Computing Companion : IEEE/ACM, 2020
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We present a general performance model for communication architectures in Internet of Things scenarios. The architecture involves three processing layers, i.e., edge, fog, and cloud computing. According to the objectives of edge and fog computing, we assume that a certain percentage of the data is finally processed at the edge and fog layer. The rest is forwarded to the next higher layer for further processing. Data processing is modeled as a sequence of queueing stations. This allows us to compute performance parameters such as throughput and response times at all layers. The main contribution of this paper is an easy to use method for IoT application designers that provides a very fast and very flexible parametric support for evaluating design trade-offs in edge-fog-cloud configurations.
Löber, Lena I.: Abschluss des Forschungsprojekts ‚Desinformation aufdecken und bekämpfen‘ (DORIAN). In: ZD-Aktuell (2020), p. 06980
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Britton, Loren ; Pritchard, Helen: CS FIELD MANUAL. In: Arts of the Working Class (2020)
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Hollick, M. ; Engels, J. I. ; Fraune, C. ; Freisleben, B. ; Hornung, G. ; Knodt, M. ; M., Mühlhäuser:Resiliente Informations- und Kommunikationstechnologie für ein krisenfestes Deutschland.. In: emergenCITY Policy Paper No. 1, 2020
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Hornung, Gerrit ; Wagner, B: Anonymisierung als datenschutzrelevante Verarbeitung? Rechtliche Anforderungen und Grenzen für die Anonymisierung personenbezogener Daten. In: Zeitschrift für Datenschutz vol. 5 (2020), pp. 223–228
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Maier-Reinhardt, Natalie:Die Zertifizierung von Verarbeitungsvorgängen nach der DSGVO – Anforderungen an Zertifizierungsprogramme.. In: Hentschel ; Hornung ; Jandt (eds.): Mensch – Technik – Umwelt: Verantwortung für eine sozialverträgliche Zukunft, Festschrift für Alexander Roßnagel zum 70. Geburtstag. Baden-Baden, 2020, pp. 401–417
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Roßnagel, Alexander ; Geminn, Christian: Zwei Jahre Datenschutz-Grundverordnung – eine Bilanz aus Verbrauchersicht vol. 59 (2020), Nr. 3-4, pp. 27–39
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Klumbytė, Goda ; Draude, Claude ; Britton, Loren: Re-Imagining HCI: New Materialist Philosophy and Figurations as Tool for Design (2020)
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In this paper we interrogate the practices of imagining in human-computer interaction (HCI), particularly in scenario building (SBE) and persona construction. We discuss the philosophical premises of HCI imaginings in rationalism, cognitivism and phenomenology, and we propose (feminist) new materialist philosophy as an enriching perspective that helps generate a holistic, relational perspective of users, imaginaries and technologies. In the end we explore the method of figurations as a potential tool for HCI design.
Geihs, Kurt: Engineering Challenges Ahead for Robot Teamwork in Dynamic Environments. In: Applied Sciences vol. 10, Multidisciplinary Digital Publishing Institute (2020), Nr. 4, p. 1368
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Maier, Natalie ; Lins, S. ; Teigeler, A. ; Roßnagel, Alexander ; Sunyaev, A.: AUDITOR: Einreichung des Zertifizierungsprogramms bei der deutschen Akkreditierungsstelle. In: ZD-Aktuell (2020), Nr. 9, p. 07119
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Billert, Matthias Simon ; Weinert, Tim ; Janson, Andreas ; Leimeister, Jan Marco: Co-Creation durch Peers im digitalen Lernen – Wie Plattformen und Chatbots die Partizipation bei der Lernmaterialerstellung begleiten können. In: Robra‐Bissantz, S. ; Lattemann, C. (eds.) HMD Praxis der Wirtschaftsinformatik vol. 57 (2020), Nr. 4, pp. 722–743
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Die Arbeit in Industrieunternehmen verändert sich auf Grund der Digitalisierung grundlegend. Entwicklungen in der Automatisierungstechnik können in naher Zukunft einen Teil der Arbeit von Arbeitnehmenden ersetzen. Dadurch wird es notwendig sein, sich auf die sich schnell wechselnden Qualifikationsanforderungen aus diesem Digitalisierungsprozess einzustellen. Hierzu gehört einerseits die schnelle Reaktionsfähigkeit auf die fortlaufenden Veränderungen, die in Unternehmen stattfinden, beispielsweise die Einbettung neuer Technologien in Arbeitsprozesse. Andererseits aber auch die notwendigen Upskilling-Prozesse, die durch den Einsatz neuer Technologien notwendig werden. Für beide Aspekte sind aber entsprechende Angebote zur Schulung notwendig, die sich flexibel auf die Bedarfe anpassen. Digitale Lernservices ermöglichen dabei auf die individuellen Arbeitssituation von Mitarbeitenden zu reagieren und im Sinne der Co-Creation den Prozess der gemeinsamen Erstellung von Lern- sowie Schulungsmaterialien durch die Einbindung mehrerer Akteure zu steuern.
Henze, Janosch ; Siefert, Malte ; Bremicker-Trübelhorn, Sascha ; Asanalieva, Nazgul ; Sick, Bernhard: Probabilistic upscaling and aggregation of wind power forecasts. In: Energy, Sustainability and Society vol. 10 (2020), Nr. 1, p. 15
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Wind power forecasts of the expected wind feed-in for the next hours or days are necessary to integrate the generated volatile wind energy into power systems. Most forecasting models predict in some sense the best value, but they ignore the other possible outcomes which may arise because of forecasting uncertainties. Probabilistic forecasts, on the other hand, also predict a distribution of possible outcomes with their respective probabilities that specific power values will occur and therefore have higher information content. In this work, we address two problems that hinder the introduction of probabilistic forecasts in practice: (1) no measurement data are available for some wind farms and (2) the flexible aggregation of probabilistic forecasts for changing wind farm portfolios.

2019[ to top ]

Dellermann, Dominik ; Ebel, Philipp ; Söllner, Matthias ; Leimeister, Jan Marco: Hybrid Intelligence, Business & Information Systems Engineering. In: Business & Information Systems Engineering vol. 61 (2019), Nr. 5, pp. 637–643
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Research has a long history of discussing what is superior in predicting certain outcomes: statistical methods or the human brain. This debate has repeatedly been sparked off by the remarkable technological advances in the field of artificial intelligence (AI), such as solving tasks like object and speech recognition, achieving significant improve- ments in accuracy through deep-learning algorithms (Goodfellow et al. 2016), or combining various methods of computational intelligence, such as fuzzy logic, genetic algorithms, and case-based reasoning (Medsker 2012). One of the implicit promises that underlie these advancements is that machines will 1 day be capable of performing complex tasks or may even supersede humans in performing these tasks. This triggers new heated debates of when machines will ultimately replace humans (McAfee and Brynjolfsson 2017). While previous research has proved that AI performs well in some clearly defined tasks such as playing chess, playing Go or identifying objects on images, it is doubted that the development of an artificial general intelligence (AGI) which is able to solve multiple tasks at the same time can be achieved in the near future (e.g., Russell and Norvig 2016). Moreover, the use of AI to solve complex business problems in organizational con- texts occurs scarcely, and applications for AI that solve complex problems remain mainly in laboratory settings instead of being implemented in practice. Since the road to AGI is still a long one, we argue that the most likely paradigm for the division of labor between humans and machines in the next decades is Hybrid Intelligence. This concept aims at using the complementary strengths of human intelligence and AI, so that they can perform better than each of the two could separately (e.g., Kamar2016).
Dankwa, Nana Kesewaa: Participatory Design of Smart Home Technology: self-reflections of my work as a black African migrant HCI researcher. In: GenderIT.org (2019)
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Hanika, Tom ; Kibanov, Mark ; Kropf, Jonathan ; Laser, Stefan:Ich denke, es ist wichtig zu verstehen, warum die Netzwerkanalyse jetzt populär und besonders interessant für die Forschung geworden ist.. In: Kropf, J. ; Laser, S. (eds.): Digitale Bewertungspraktiken : Springer, 2019, pp. 165–188
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Scheiner, Nicolas ; Appenrodt, Nils ; Dickmann, Jürgen ; Sick, Bernhard:Automated Ground Truth Estimation of Vulnerable Road Users in Automotive Radar Data Using GNSS.. In: IEEE MTT-S International Conference on Microwaves for Intelligent Mobility (ICMIM), 2019, pp. 5–9
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Knote, Robin ; Janson, Andreas ; Söllner, Matthias ; Leimeister, Jan Marco:Classifying Smart Personal Assistants: An Empirical Cluster Analysis.. In: Hawaii International Conference on System Sciences (HICSS), 2019
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Maedche, Alexander ; Legner, Christine ; Benlian, Alexander ; Berger, Benedikt ; Gimpel, Henner ; Hess, Thomas ; Hinz, Oliver ; Morana, Stefan ; et al.: AI-Based Digital Assistants - Opportunities, Threats, and Research Perspectives.. In: Business & Information Systems Engineering vol. 61 (2019), Nr. 4, pp. 535–544
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This article summarizes the panel discussion at the International Conference on Wirtschafts-informatik in March 2019 in Siegen (WI 2019) and presents different perspectives on AI-based digital assistants. It sheds light on (1) application areas, opportunities, and threats as well as (2) the BISE community’s roles in the field of AI-based digital assistants. The different authors’ contributions emphasize that BISE, as a socio-technical discipline, must address the designs and the behaviors of AI-based digital assistants as well as their interconnections. They have identified multiple research opportunities to deliver descriptive and prescriptive knowledge, thereby actively shaping future interactions between users and AI-based digital assistants. We trust that these inputs will lead BISE researchers to take active roles and to contribute an IS perspective to the academic and the political discourse about AI-based digital assistants.
Schmidt-Kraeplin, Manuel ; Thiebes, Scott ; Schöbel, Sofia ; Sunyaev, Ali:Users’ Game Design Element Preferences in Health Behavior Change Support Systems for Physical Activity: A Best-Worst-Scaling Approach.. In: International Conference on Information Systems (ICIS), 2019
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Over the last decades, physical inactivity has become one of the leading health risk factors in modern societies. To incentivize people to be more physically active, gamified health behavior change support systems (HBCSSs) are a promising approach. These systems often make use of gamification to keep their users engaged over a sustained period of time. However, despite its popularity, gamification often fails due to insufficient designs, which neglect users’ needs. Building on extant research that investigated users’ preferences in other gamification contexts, we conduct a survey among 447 potential users of HBCSSs for physical activity, using a best-worst-scaling approach. Our results indicate that users generally prefer the game design elements progress, goals, points, and levels, which is partially different from past research on preferred game design elements in other contexts. Thus, our research contributes to the understanding of contextual differences in users’ gamification preferences.
Lesch, V. ; Krupitzer, C. ; Tomforde, S.:Multi-objective Optimisation in Hybrid Collaborating Adaptive Systems.. In: ARCS Workshop 2019; 32nd International Conference on Architecture of Computing Systems, 2019, pp. 1–8
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Schöbel, Sofia ; Janson, Andreas ; Hopp, Jennifer Christin ; Leimeister, Jan Marco:Gamification of Online Training and its Relation to Engagement and Problem-solving Outcomes.. In: Academy of Management Annual Meeting (AOM), 2019
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Scheiner, Nicolas ; Appenrodt, Nils ; Dickmann, Jürgen ; Sick, Bernhard:Radar-based Road User Classification and Novelty Detection with Recurrent Neural Network Ensembles.. In: 2019 IEEE Intelligent Vehicles Symposium (IV). Paris, France : IEEE, 2019, pp. 642–649
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Martin, N. ; Bile, Tamer ; Nebel, Maxi ; Bieker, F. ; Geminn, Christian ; Schöning, C. ; Roßnagel, A. (ed.):Das Sanktionsregime der Datenschutz-Grundverordnung- Auswirkungen auf Unternehmen und Datenschutzaufsichtsbehörden, White Paper des Forums Privatheit und selbstbestimmtes Leben in der digitalen Welt. Karlsruhe, 2019
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D’Angelo, M. ; Gerasimou, S. ; Ghahremani, S. ; Grohmann, J. ; Nunes, I. ; Pournaras, E. ; Tomforde, S.:On Learning in Collective Self-Adaptive Systems: State of Practice and a 3D Framework.. In: 2019 IEEE/ACM 14th International Symposium on Software Engineering for Adaptive and Self-Managing Systems (SEAMS), 2019, pp. 13–24
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Martin, N. ; Bile, T. ; Nebel, M. ; Bieker, F. ; Geminn, C. L. ; Roßnagel, Alexander ; Schöning, C.:Das Sanktionsregime der Datenschutz-Grundverordnung – Auswirkungen auf Unternehmen und Datenschutzaufsichtsbehörden, Schriftenreihe Forum Privatheit und selbstbestimmtes Leben in der digitalen Welt. Karlsruhe : Fraunhofer ISI, 2019
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Dankwa, Nana Kesewaa:Offline or online. Mine!. In: Mosene, K. ; Kettemann, M. C. (eds.): Many Worlds. Many Nets. Many Visions. Critical Voices, Visions and Vectors for Internet Governance., Internet Governance Forum Berlin 2019 : Alexander von Humboldt Institute for Internet and Society (HIIG) and Leibniz Institute for Media Research / Hans-Bredow Institut (HBI), 2019, p. 25
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Dellermann, Dominik ; Ebel, Philipp ; Söllner, Matthias ; Leimeister, Jan Marco: Hybrid Intelligence. In: Business & Information Systems Engineering vol. 61. Wiesbaden, Germany, Springer Fachmedien (2019), Nr. 5, pp. 637–643
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Hanika, Tom ; Herde, Marek ; Kuhn, Jochen ; Leimeister, Jan Marco ; Lukowicz, Paul ; Oeste-Reiß, Sarah ; Schmidt, Albrecht ; Sick, Bernhard ; et al.: Collaborative Interactive Learning - A clarification of terms and a differentiation from other research fields.. In: CoRR vol. abs/1905.07264 (2019)
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Hanika, Tom ; Hirth, Johannes:Conexp-Clj - A Research Tool for FCA.. In: Cristea, D. ; Ber, F. L. ; Missaoui, R. ; Kwuida, L. ; Sertkaya, B. (eds.): ICFCA (Supplements), CEUR Workshop Proceedings. vol. 2378 : CEUR-WS.org, 2019, pp. 70–75
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Müller, J.: Dateneigentum in der vierten industriellen Revolution?. In: DuD (2019), Nr. 3, pp. 159–166
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Beuermann, Maximilian ; Ossenkopf, Marie ; Geihs, Kurt:Positioning of Active Wheels for Optimal Ball Handling.. In: Robot World Cup : Springer, 2019, pp. 30–43
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Hanika, Tom ; Marx, Maximilian ; Stumme, Gerd: Discovering Implicational Knowledge in Wikidata (2019). — cite arxiv:1902.00916
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Knowledge graphs have recently become the state-of-the-art tool for representing the diverse and complex knowledge of the world. Examples include the proprietary knowledge graphs of companies such as Google, Facebook, IBM, or Microsoft, but also freely available ones such as YAGO, DBpedia, and Wikidata. A distinguishing feature of Wikidata is that the knowledge is collaboratively edited and curated. While this greatly enhances the scope of Wikidata, it also makes it impossible for a single individual to grasp complex connections between properties or understand the global impact of edits in the graph. We apply Formal Concept Analysis to efficiently identify comprehensible implications that are implicitly present in the data. Although the complex structure of data modelling in Wikidata is not amenable to a direct approach, we overcome this limitation by extracting contextual representations of parts of Wikidata in a systematic fashion. We demonstrate the practical feasibility of our approach through several experiments and show that the results may lead to the discovery of interesting implicational knowledge. Besides providing a method for obtaining large real-world data sets for FCA, we sketch potential applications in offering semantic assistance for editing and curating Wikidata.
Hanika, Tom ; Koyda, Maren ; Stumme, Gerd:Relevant Attributes in Formal Contexts.. In: Endres, D. ; Alam, M. ; Sotropa, D. (eds.): ICCS, Lecture Notes in Computer Science. vol. 11530 : Springer, 2019 — ISBN 978-3-030-23182-8, pp. 102–116
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Maier, Natalie: Forschungsprojekt „European Cloud Service Data Protection Certification (AUDITOR). In: ZD-Aktuell (2019), p. 06876
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Hanika, Tom:Discovering Knowledge in Bipartite Graphs with Formal Concept Analysis., University of Kassel, Germany, PhD dissertation, 2019
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Scheiner, Nicolas ; Haag, Stefan ; Appenrodt, Nils ; Duraisamy, Bharanidhar ; Dickmann, Jürgen ; Fritzsche, Martin ; Sick, Bernhard: Automated Ground Truth Estimation For Automotive Radar Tracking Applications With Portable GNSS And IMU Devices.. In: CoRR vol. abs/1905.11987 (2019)
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Maier, Natalie ; Lins, S. ; Teigeler, H. ; Roßnagel, Alexander ; Sunyaev, A: Die Zertifizierung von Cloud-Diensten nach der DSGVO. In: Datenschutz und Datensicherheit (DuD) (2019), pp. 225–229
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Schöbel, Sofia ; Janson, Andreas ; Mishra, Abhay Nath:A Configurational View on Avatar Design – The Role of Emotional Attachment, Satisfaction, and Cognitive Load in Digital Learning.. In: International Conference on Information Systems (ICIS), 2019
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In online learning settings interactive and meaningful feedback is becoming increasingly important. However, feedback from teachers is oftentimes missing in online learning settings. To overcome challenges that arise from the missing representation of teachers, our study analyzes the relevance of avatar designs in learning settings. We therefore rely on avatars as game design elements and analyze how their design can influence emotional attachment, learning process satisfaction, and extraneous cognitive load in learning. To achieve our goal, we conduct a qualitative comparative analysis with 998 datasets that were collected in a 2x2x2 pre-post online experiment that was developed to train participants in learning functions in Excel. Our results indicate that interaction, familiarity, motivation, and aesthetic experiences are important configurations for avatars that are used in learning. We contribute to different streams of theory such as self-expansion and guide practitioners by providing implications about how to create meaningful avatar designs for learning applications.
Maier, Natalie ; Bile, Tamer: Die Zertifizierung nach der DSGVO - Innovatives, aber hochkomplexes Instrument, Datenschutz und Datensicherheit. In: DuD (2019), Nr. 8, pp. 478–482
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Lesch, V. ; Krupitzer, C. ; Tomforde, S.:Emerging Self-Integration through Coordination of Autonomous Adaptive Systems.. In: 2019 IEEE 4th International Workshops on Foundations and Applications of Self* Systems (FAS*W), 2019, pp. 6–9
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Mangelsdorf, Marion ; Draude, Claude:Gender in MINT unterrichten – Hochschuldidaktische Ansätze.. In: Mangelsdorf, M. (ed.): Handreichung Gendering MINT. Vernetzung und Austausch von Gender-Perspektiven in den Natur- und Technikwissenschaften : Universität Freiburg, Förderung Bundesministeriums für Bildung und Forschung, Förderkennzeichen 01FP1453, 2019, pp. 61–81
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Scheiner, Nicolas ; Appenrodt, Nils ; Dickmann, Jürgen ; Sick, Bernhard:A Multi-Stage Clustering Framework for Automotive Radar Data.. In: ITSC. vol. abs/1907.03511 : IEEE, 2019 — ISBN 978-1-5386-7024-8, pp. 2060–2067
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Lamla, Jörn: Selbstbestimmung und Verbraucherschutz in der Datenökonomie. In: Aus Politik und Zeitgeschichte vol. 69 (2019), Nr. 24-26, pp. 49–54
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Janson, Andreas ; Söllner, Matthias ; Leimeister, Jan Marco: Ladders for Learning: Is Scaffolding the Key to Teaching Problem Solving in Technology-mediated Learning Contexts?. In: Academy of Management Learning & Education (AMLE), Academy of Management (2019)
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The success of innovative teaching/learning approaches aiming to foster problem solving in management education depends on useful and easy-to-use IT components in the learning process. However, the complexity of problem solving in self-regulated learning approaches may overwhelm the learner and can lead to unsatisfying learning outcomes. Research suggests the implementation of technology-enhanced scaffolds as a mechanism to guide the learners in their individual problem-solving process to enhance their learning outcomes. We present a theoretical model based on adaptive structuration theory and cognitive load theory that explains how technologyenhanced scaffolding contributes to learning outcomes. We test the model with a fully randomized between-subject experiment in a flipped classroom for management education focusing on individual problem solving. Our results show that technology-enhanced scaffolding contributes significantly to the management of cognitive load as well as to learning process satisfaction and problemsolving learning outcomes. Thereby, our paper provides new conceptual and empirically tested insights for a better understanding of technology-enhanced scaffolds and their design to assist problem solving and its respective effects in flipped classrooms for management education.
Leimeister, Jan Marco ; Becker, Jörg ; Heinzl, Armin ; Winter, Robert ; Gefen, David: Doing a Doctorate in BISE in Germany, Austria and Switzerland? A Debate on the Why, What and How. In: Business & Information Systems Engineering vol. 61. Wiesbaden, Germany, Springer Fachmedien (2019), Nr. 6, pp. 759–766
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Heinisch, J. S. ; Anderson, C. ; David, K.:Angry or Climbing Stairs? Towards Physiological Emotion Recognition in the Wild.. In: 2019 IEEE International Conference on Pervasive Computing and Communications Workshops (PerCom Workshops). Kyoto, Japan : IEEE, 2019, pp. 486–491
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Physiological responses to emotions play a vital role in the field of emotion recognition. Machine-learning models implemented in wristbands or wearables, already exploit unique patterns in physiological responses to provide information about humans emotional states. However, such responses are commonly interfered and overlapped by physical activities, posing a challenge for emotion recognition “in-the-wild”. In this paper, we address this challenge by investigating new features based on the linear regression line and machine-learning models for emotion recognition. We triggered emotions through audio samples and recorded physiological responses from 18 participants before and while performing physical activities. We trained models with the least strenuous physical activity (sitting) and tested with the remaining, more strenuous ones. For three different emotion categories, we achieved classification accuracies up to 67%. Considering individual activities and participants, we achieve up to 73% classification accuracy, indicating the viability of emotion recognition models and features non-sensitive to interferences caused by physical activities.
Billert, Matthias Simon ; Peters, Christoph ; Leimeister, Jan Marco:Agile Dienstleistungsentwicklung in einer Smart City – Eine Plattform zur systematischen Erstellung digitaler bürgernaher Dienstleistungen.. In: Bruhn, M. ; Hadwich, K. (eds.): Kooperative Dienstleistungen. Forum Dienstleistungsmanagement.. Wiesbaden, Germany : Springer Gabler, 2019 — ISBN 978-3-658-26389-8, pp. 431–447
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Die Digitalisierungsstraße ist ein Konzept zur systematischen Entwicklung digitaler bürgernaher Dienstleistungen für eine Stadt, die technisch auf einer erfolgreich an die Stadtverwaltung angebundene Plattform basiert. Sie besteht aus drei Schritten, in denen Bürger unter Verwendung eines multimedialen, bürgerzentrierten Ansatzes ihre Dienstleistungsidee beschreiben, visualisieren und anschließend präsentieren. Erstmalig werden diese Schritte integriert und medienbruchfrei auf einer Plattform auf Basis von Scrum und der webbasierten Plattform GitLab zur Verwaltung agiler Softwareprojekte realisiert.
Schindler, Stephan: Die Rechtsprechung und der Überwachungsdruck im Nachbarschaftsverhältnis. In: ZD-Aktuell (2019), p. 06878
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Billert, Matthias Simon ; Peters, Christoph ; Leimeister, Jan Marco ; Niering, Peggy ; Hartmann, Christina: Weck den Herkules in dir – bürger-initiierte Dienstleistungen. In: Bittner, E. ; Leimeister, J. M. ; Krcmar, H. ; Peters, C. (eds.) Handlungsbroschüre zum Verbundforschungsprojekt Civitas Digitalis - Digitale und Crowd-basierte Dienstleistungssysteme zur Schaffung zukunftsfähiger und lebenswerter Lebensräume 2020. ITeG Technical Reports – Wissenschaftlichen Zentrum für Informationstechnik-Gestaltung (ITeG) an der Universität Kassel vol. 8. Kassel, Germany, kassel university press (2019), pp. 12–39 — ISBN 978-3-7376-5099-1
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Mrass, Volkmar ; Peters, Christoph ; Leimeister, Jan Marco:Crowdworking-Plattformen und die Digitalisierung der Arbeit.. In: Boes, A. ; Langes, B. (eds.): Die Cloud und der digitale Umbruch in Wirtschaft und Arbeit. Strategien, Best Practices und Gestaltungsimpulse. Freiburg, Germany : Haufe Group, 2019, pp. 173–190
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David, K. ; Geihs, K. ; Lange, M. ; Stumme, G. (eds.):GI Edition Proceedings Band 294 INFORMATIK 2019. Kassel, Deutschland., LNI. vol. P-294 : Gesellschaft für Informatik (GI), 2019
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Schindler, Stephan: Biometrische Gesichtserkennung in den USA. In: ZD-Aktuell vol. (06595) (2019)
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Knote, Robin ; Thies, Laura Friederike ; Söllner, Matthias ; Jandt, Silke ; Roßnagel, Alexander ; Leimeister, Jan Marco:Rechtsverträgliche und qualitätszentrierte Gestaltung für "KI made in Germany".. In: Draude, C. ; Lange, M. ; Sick, B. (eds.): INFORMATIK 2019: 50 Jahre Gesellschaft für Informatik – Informatik für Gesellschaft (Workshop-Beiträge). vol. Lecture Notes in Informatics (LNI) - Proceedings: Series of the Gesellschaft für Informatik (GI). Bonn, Germany : Gesellschaft für Informatik (GI), 2019 — ISBN 978-3-88579-689-3, pp. 421–424
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Schöbel, Sofia ; Söllner, Matthias:Leitfaden für die Identifikation, Auswahl und Kombination von Gamification-Elementen am Beispiel des Lernkontextes.. In: Leimeister, J. M. ; David, K. (eds.): Chancen und Herausforderungen des digitalen Lernens: Methoden und Werkzeuge für innovative Lehr-Lern-Konzepte. Berlin, Heidelberg : Springer Berlin Heidelberg, 2019 — ISBN 978-3-662-59390-5, pp. 143–164
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Gamification ist ein bekannter Ansatz, bei dem sogenannte Spieldesignelemente in Informationssysteme integriert werden. Entgegen des bisherigen Erfolges des Ansatzes gibt es viele Unstimmigkeiten in Bezug auf das Design von Spieldesignelementen, besonders wenn es um die Anpassung der Elemente an eine bestimmte Zielgruppe geht. Dieser Beitrag stellt eine neue Klassifikation von Spieldesignelementen wie auch einen Prozess vor, mit dem Gamification-Konzepte Schritt für Schritt entwickelt und an eine Zielgruppe angepasst werden können. Der Prozess wird anhand des Lernkontextes detailliert vorgestellt und gibt so Praktikern/Praktikerinnen und Forschenden eine Vorstellung, wie Gamification-Ansätze systematisch entwickelt werden können. Durch die Entwicklung des Prozesses können für die Praxis Hilfestellungen gegeben werden, um Gamification-Ansätze zu entwickeln. Weiterhin liefert die Klassifikation der Spieldesignelemente einen theoretischen Beitrag zur Gamification-Literatur.
Schindler, Stephan: Super-Recognizer: Die menschliche Alternative zur biometrischen Gesichtserkennung?. In: ZD-Aktuell (2019), p. 06730
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Löber, Lena I.: Kennzeichnung von Social Bots – Transparenzpflichten zum Schutz integrer Kommunikation. In: Roßnagel, A. (ed.) Multimedia und Recht (2019), Nr. 8, pp. 493–498
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Mrass, Volkmar ; Peters, Christoph:Managing Work Systems for Complex Work via Crowdworking Platforms - How to Orchestrate the Interplay of Crowds.. In: Hawaii International Conference on System Sciences (HICSS), 2019, pp. 6347–6356
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Schindler, Stephan: Künstliche Intelligenz und (Datenschutz-)Recht. In: ZD-Aktuell (2019), p. 06647
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Schindler, Stephan: Südkreuz zum Zweiten: Test intelligenter Videoanalysesoftware am Bahnhof Berlin Südkreuz. In: ZD-Aktuell (2019), p. 06071
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Schindler, Stephan ; Borell, A: Projektabschluss FLORIDA. In: ZD-Aktuell (2019), p. 06547
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Hentschel, M.:Kommentierung von §§ 5, 7, 10.),14, 14a, 19, 22, 23, 23a, 23b, 23c, 25a, 48a, 48b Bundesimmissionsschutzgesetzes.. In: Roßnagel, A. (ed.): Führ, M. (Hrsg.), Gemeinschaftskommentar zum Bundes-Immissionsschutzgesetz. Köln : Carl Heymanns Verlag, 2019
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Schindler, Stephan ; Lurtz, H: Gemeinsame Verantwortlichkeit des Websitebetreibers bei Social-Plug-Ins, Anmerkung zu EuGH, Urteil vom 29.07.2019 C-40/17, VuR 2019 VuR 2019, 468-476. In: VuR vol. 12 (2019), pp. 468–476
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Schindler, Stephan ; Borell, A:Polizei und Datenschutz. Vorgaben der neuen JI-RL für technische und organisatorische Maßnahmen zur Gewährleistung datenschutzkonformer polizeilicher Datenverarbeitung.. In: INFORMATIK 2019: 50 Jahre Gesellschaft für Informatik - Informatik für Gesellschaft. Konferenzbeiträge der 49. Jahrestagung der Gesellschaft für Informatik. Bonn : Gesellschaft für Informatik (Gi), 2019, pp. 393–406
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Bittner, Eva A. C. ; Oeste-Reiß, Sarah ; Ebel, Philipp Alexander ; Söllner, Matthias: Mensch-Maschine-Kollaboration: Grundlagen, Gestaltungsherausforderungen und Potenziale für verschiedene Anwendungsdomänen. In: HMD Praxis der Wirtschaftsinformatik (2019), pp. 1–16
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Dickel, Sascha ; Schneider, Christoph ; Thiem, Carolin ; Wenten, Klara-Aylin: Engineering Publics: The Different Modes of Civic Technoscience. In: Science and Technology Studies Journal. The Many Modes of Citizen Science vol. 32 (2019), Nr. 2, pp. 8–23
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Schmidt, L. ; Hornung, G. ; Leimeister, J. M.:Praktische Ansätze zur ELSI-Integration in Technologieprojekte.. In: Draude, C. ; Lange, M. ; Sick, B. (eds.): INFORMATIK 2019: 50 Jahre Gesellschaft für Informatik - Informatik für Gesellschaft (Workshop-Beiträge), Lecture Notes in Informatics. Bonn : Gesellschaft für Informatik e. V, 2019, pp. 401–402
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In Förderausschreibungen wird zunehmend gefordert, ethische, rechtliche und soziale Implikationen (ELSI) der Technikentwicklung nicht nur begleitend, sondern mit einem integrierten Forschungsansatz in Technologieprojekten zu berücksichtigen. Erfahrungen mit der praktischen Umsetzung in der Projektarbeit sollen in diesem Workshop ausgetauscht werden.
Bittner, Eva A. C. ; Oeste-Reiß, Sarah ; Leimeister, Jan Marco:Where is the Bot in our Team? Toward a Taxonomy of Design Option Combinations for Conversational Agents in Collaborative Work.. In: Hawaii International Conference on System Sciences (HICSS), 2019
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With rapid progress in machine learning, language technologies and artificial intelligence, conversational agents (CAs) gain rising attention in research and prac-tice as potential non-human teammates, facilitators or experts in collaborative work. However, designers of CAs in collaboration still struggle with a lack of com-prehensive understanding of the vast variety of design options in the dynamic field. We address this gap with a taxonomy to help researchers and designers understand the design space and the interrelations of different design options and recognize useful design option com-binations for their CAs. We present the iterative deve-lopment of a taxonomy for the design of CAs grounded in state of the art literature and validated with domain experts. We identify recurring design option combina-tions and white spots from the classified objects that will inform further research and development efforts.
Schmidt, L. ; Hegenberg, J. ; Klingauf, A. ; Sommer, C. ; Bieland, D. ; Lambrecht, F.: U-hoch-3. In: Schlussbericht der 1. Förderphase des BMBF-Projektes, Schlussbericht der 1. Förderphase des BMBF-Projektes.. Kassel (2019)
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Die Steigerung der Attraktivität öffentlicher Verkehrsmittel (ÖV) ist eine zentrale Komponente zur Verbesserung der Lebensqualität im urbanen Raum. Zwei Drittel der zurückgelegten Wege in Kernstädten entfallen auf Freizeitaktivitäten, Einkauf und private Erledigungen, wobei der ÖV-Nutzung oft der unbequeme Transport von Einkäufen oder Gepäck sowie die Unsicherheit bzgl. verfügbarer Sitzplätze und des Erreichens von Anschlüssen entgegenstehen. Deshalb wurde in diesem Projekt ein Mobilitätsassistenzsystem konzipiert, das den Nutzer bedarfsgerecht entlang seiner Reisekette unterstützt. Neben der intermodalen Reiseplanung bietet es einen innovativen innerstädtischen Lieferdienst, der mit Gepäckabgabe, Transport und Zustellung die gesamte Lieferkette abdeckt. Gemeinsam mit innerstädtischen Verkehrsdienstleistern wurde die Erfassung und Echtzeit-Bereitstellung von Belegungsdaten untersucht, deren Berücksichtigung neue individuelle Adaptionsmöglichkeiten schafft. Weiterhin wurde eine Anschlusssicherung konzipiert, die dem Nutzer verlässliche Informationen zur Anschlusserreichung bereitstellt und durch Anmeldung von Anschlusswünschen die Sicherstellung durch die Verkehrsdienstleister ermöglicht. Das Assistenzsystem bietet eine integrierte Lösung für die getrennte Personen- und Gepäckbeförderung und integriert Daten zu Belegung und Anschlüssen, die bisher nicht in Echtzeit bereitgestellt werden.
Morold, Michel ; Bachmann, Marek ; Mathuseck, Lars ; David, Klaus:Automated Learning of Pedestrian Walking Speed Profiles for Improved Movement Prediction.. In: Draude, C. ; Lange, M. ; Sick, B. (eds.): LNI, LNI. vol. P-295. Kassel, Germany : Gesellschaft für Informatik e.V., 2019
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Every year, about 310,500 pedestrians still lose their lives in traffic accidents worldwide. Cooperative pedestrian collision avoidance represents a promising approach to reduce those accident numbers. This approach assumes that pedestrians are equipped with mobile devices to obtain and exchange their current movement information with nearby vehicles and use those to predict and prevent possible collisions. However, the ability to predict collisions between a pedestrian and a vehicle also depends on the assumptions about the pedestrian’s future behavior. One important aspect of those assumptions is a pedestrian’s individual walking pattern, like his common or maximum speed. Thus, learning and applying individual walking speed profiles of pedestrians to improve movement prediction may increase the accuracy of a collision detection algorithm and could, in turn, reduce the probability of missing or erroneously triggering an alarm. In this publication, we propose an approach to learn individual walking speed profiles of a pedestrian based on smartphone Global Navigation Satellite System (GNSS) data and evaluate the ability to predict collisions based on those profiles. Therefore, we first conducted experiments to estimate the error of walking speed obtained from smartphone GNSS. Second, using our Pedestrian Monitor application, we recorded real-world walking speed information from nine participants. Based on these data, we show that individually learned walking speed profiles are able to increase the accuracy of predicting an impending collision.
Leimeister, Jan Marco:Dienstleistungsengineering und -management Data-driven Service Innovation. Zweite.. Berlin, Heidelberg : Springer Gabler, 2019 — ISBN 978-3-662-59857-3
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Schmidt, L.: Gestaltung technikgestützter Assistenzsysteme für den Menschen: Industrie 4.0, Robotik, Augmented Reality. In: 4. Innovationsfrühstück "Uni trifft Wirtschaft", Vortrag, 4. Innovationsfrühstück "Uni trifft Wirtschaft", Vortrag.. Kassel (2019)
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Mack, N. ; Schmidt, L.:Evaluierung der sozialen Akzeptanz verschiedener Interaktionsarten für Augmented-Reality-Datenbrillen.. In: Steinicke, F. ; Wolf, K. (eds.): Mensch und Computer 2019 - Workshopband (Hamburg 2019). Bonn : Gesellschaft für Informatik e. V, 2019, pp. 150–157
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Die soziale Akzeptanz ist neben der praktischen Akzeptanz ein wichtiger Bestandteil der Akzeptanz eines Systems durch die Nutzer. Es ist möglich, dass trotz hoher praktischer Akzeptanz ein System nicht genutzt wird, da dieses sozial nicht akzeptabel ist. Für Augmented-Reality-Datenbrillen (AR-Datenbrillen) wurden schon verschiedene Faktoren determiniert, welche die soziale Akzeptanz beeinflussen können, um zu vermeiden, dass diese von den Nutzern abgelehnt werden. Ein wichtiger Faktor, welcher die soziale Akzeptanz einer Datenbrille beeinflussen kann, ist die Interaktionsart. Es ist anzunehmen, dass die Verwendung unterschiedlicher Interaktionsarten in dem gleichen sozialen Kontext mit dem gleichen Gesamtsystem nicht in der gleichen sozialen Akzeptanz resultiert. Nachfolgend wird eine Studie mit 10 Probanden und 6 aktuell auf AR-Datenbrillen verwendeten Interaktionsarten durchgeführt, um deren soziale Akzeptanz in verschiedenen Orts- und Zuschauerkontexten vergleichend zu evaluieren. Die Studie zeigt, dass die Interaktionsarten, insbesondere diverse Arten der Sprachinteraktion, mit steigender Distanz der sozialen Beziehung zu dem Zuschauer in der Bewertung degradieren und, dass der Ort des voraussichtlichen Einsatzes der Interaktionsart berücksichtigt werden muss.
Janson, Andreas ; Degen, Oliver ; Schwede, Melanie:Designing for Social Presence and Leveraging the Outcomes of Customer Service Chatbots.. In: Academy of Management Annual Meeting (AOM). Boston, Massachusetts, USA, 2019
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Chatbots are innovative text-based dialogue systems that are oftentimes used in digital customer service encounters, since chatbots offer a lot of potential to optimize the relationship with the customer. However, chatbots face various problems, such as low adoption and satisfaction rates as well as other negative reactions from the customer. Companies therefore need to consider different design features when developing their chatbots. Key for designing chatbots is the use of anthropomorphic design elements. In this study, we examine the two anthropomorphic design elements of personification, which includes a human like appearance of the chatbot, and socially oriented communication, which means a more sensitive and extensive communication behavior. We tested the influence of the two design elements on social presence, satisfaction, trusting beliefs and empathy. The results of our experiment support a significant influence of the two anthropomorphic design elements on social presence. In addition, our findings show the central role of social presence concerning chatbot perceptions. First, social presence has a strong direct influence on trusting beliefs, empathy and satisfaction. Second, social presence acts as a mediator for both anthropomorphic design elements on satisfaction with a chatbot. The derived implications provide a theory for understanding anthropomorphic design elements related to chatbots and we offer design principles for practitioners that enable more effective chatbot implementations.
Schmidt, L.: Assistenzsystem zum Abbau von Nutzungsbarrieren öffentlicher Verkehrsmittel. In: Technik zum Menschen bringen : 4. BMBF-Zukunftskongress Demografie, eingeladener Vortrag, Technik zum Menschen bringen : 4. BMBF-Zukunftskongress Demografie, eingeladener Vortrag.. Bonn (2019)
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Schmidt, L.: Mensch-Roboter-Zusammenarbeit und Assistenz mit erweiterter Realität. In: Zukunft der Arbeit : 70 Jahre REFA Hessen, eingeladener Vortrag, Zukunft der Arbeit : 70 Jahre REFA Hessen, eingeladener Vortrag.. Kassel (2019)
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Lamla, Jörn:Vom industriellen Massenkonsum zum digitalisierten Individualkonsum?. In: Baule, B. ; Hohnsträter, D. ; Krankenhagen, S. ; Lamla, J. (eds.): Transformationen des Konsums. Vom industriellen Massenkonsum zum individualisierten Digitalkonsum. Baden-Baden : Nomos, 2019, pp. 109–118
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Mrass, Volkmar ; Peters, Christoph ; Leimeister, Jan Marco:Crowdworking-Plattformen als innovative Dienstleistungssysteme.. In: Stich, V. ; Schumann, J. H. ; Beverungen, D. ; Gudergan, G. ; Jussen, P. (eds.): Digitale Dienstleistungsinnovationen. Smart Services agil und kundenorientiert entwickeln. Berlin, Heidelberg : Springer Vieweg, 2019 — ISBN 978-3-662-59516-9, pp. 245–257
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Matzner, Tobias ; Ochs, Carsten: Privacy. In: Internet Policy Review. Journal on Internet Regulation vol. 8 (2019)
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This contribution provides a short introduction into the conceptual and socio-technical development of privacy. It identifies central issues that inform and structure current debates as well as transformations of privacy spurred by digital technology. In particular, it highlights central ambivalences of privacy between protection and de-politicization and the relation of individual and social perspectives. A second section connects these issues to the influential texts and discussions on digital privacy. In particular, we will demonstrate privacy in digital societies is to be conceived in a novel way, since contemporary socio-technical conditions unsettle central assumptions of established theories: forms of perceptions, social structure or individual rights. Thus, a final third paragraph summarises theoretical innovations triggered by this situation – especially research from computer science to the social sciences and law and philosophy highlighting the requirement to take groups, social relations and broader socio-cultural contexts into account.
Seeber, Isabella ; Bittner, Eva ; Briggs, Robert O. ; de Vreede, Triparna ; de Vreede, Gert-Jan ; Elkins, Aaron ; Maier, Ronald ; Merz, Alexander B. ; et al.: Machines as teammates: A research agenda on AI in team collaboration. In: Information & Management (2019)
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What if artificial intelligence (AI) machines became teammates rather than tools? This paper reports on an international initiative by 65 collaboration scientists to develop a research agenda for exploring the potential risks and benefits of machines as teammates (MaT). They generated 819 research questions. A subteam of 12 converged them to a research agenda comprising three design areas – Machine artifact, Collaboration, and Institution – and 17 dualities – significant effects with the potential for benefit or harm. The MaT research agenda offers a structure and archetypal research questions to organize early thought and research in this new area of study.
Seeber, Isabella ; Bittner, Eva ; Briggs, Robert O. ; De Vreede, Triparna ; De Vreede, Gert-Jan ; Elkins, Aaron ; Maier, Ronald ; Merz, Alexander B. ; et al.: Machines as teammates: A research agenda on AI in team collaboration, Information & Management. In: Information & Management vol. 57 (2019), Nr. 2, p. 103174
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What if artificial intelligence (AI) machines became teammates rather than tools? This paper reports on an international initiative by 65 collaboration scientists to develop a research agenda for exploring the potential risks and benefits of machines as teammates (MaT). They generated 819 research questions. A subteam of 12 converged them to a research agenda comprising three design areas – Machine artifact, Collaboration, and Institution – and 17 dualities – significant effects with the potential for benefit or harm. The MaT research agenda offers a structure and archetypal research questions to organize early thought and research in this new area of study.
Kolbe, B. ; Schmidt, L. ; Wagner, N. ; Hegenberg, J. ; Inninger, W. ; Mack, N. ; Stegemann, M.: Datenbrille für komplexe Umstiege: Wie gebrauchstauglich sind innovative Informationsdienste? Ergebnisse des Forschungsprojekts RadAR+: Reiseassistenzsystem für dynamische Umgebungen auf Basis von "Augmented Reality". In: Der Nahverkehr vol. 37 (2019), Nr. 9, pp. 48–55
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Mobilität präsentiert sich in Form von Alltags- und Versorgungsmobilität, als Freizeit-, Messe- und Touristenverkehr sowie in vielschichtigen Wirtschaftsbewegungen von Unternehmen und Dienstleistern. Mobilität ist ein Grundbedürfnis und sichert neben der Teilhabe am öffentlichen Leben die Erreichbarkeit des Arbeitsplatzes, also die Teilhabe am ökonomischen Leben. Die Sicherung von Mobilität sowie eine effiziente Ausgestaltung zur Information und Nutzung unter den technischen Rahmenbedingungen sind Aufgaben mit hoher gesellschaftlicher Verantwortung, zu deren Lösung das Projekt RadAR+ einen wesentlichen Beitrag leistete - durch die Entwicklung eines adaptiv lernenden Mobilitätsagenten unter Verwendung von Augmented Reality.
Lamla, Jörn ; Ochs, Carsten:Selbstbestimmungspraktiken in der Datenökonomie: Gesellschaftlicher Widerspruch oder ‚privates‘ Paradox?. In: Blättel-Mink, B. ; Kenning, P. (eds.): Paradoxien des Verbraucherverhaltens. Dokumentation der Jahreskonferenz 2017 des Netzwerks Verbraucherforschung. Wiesbaden : Springer Gabler, 2019, pp. 25–39
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Hegenberg, J.: Augmented-Reality-basierte Assistenz für die Mensch-Roboter-Kollaboration. In: Datenbrillen : Aktueller Stand von Forschung und Umsetzung sowie zukünftiger Entwicklungsrichtungen, Expertenworkshop der Bundesanstalt für Arbeitsschutz und Arbeitsmedizin, eingeladener Vortrag, Datenbrillen : Aktueller Stand von Forschung und Umsetzung sowie zukünftiger Entwicklungsrichtungen, Expertenworkshop der Bundesanstalt für Arbeitsschutz und Arbeitsmedizin, eingeladener Vortrag.. Dortmund, BAuA (2019)
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Bellman, K. L. ; Gruhl, C. ; Landauer, C. ; Tomforde, S.:Self-Improving System Integration -- On a Definition and Characteristics of the Challenge.. In: 2019 IEEE 4th International Workshops on Foundations and Applications of Self* Systems (FAS*W), 2019, pp. 1–3
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The self-improving system integration (SISSY) initiative-sometimes also called self-integration-started over six years ago. Recently, we have seen contributions approaching parts of the scope from different directions. In order to provide a better understanding how these attempts support the development of novel SISSY technology, this paper presents a definition of the term. In addition, it discusses the fundamental challenges stemming from the increasingly interconnected character of large-scale distributed and adaptive systems typically referred to as "Interwoven Systems", with these systems describing the basic motivation for SISSY research.
Billert, Matthias:Yes, We Can! Blockchain Based Crowdfunding and Crowdworking.. In: Pre-ICIS SIGBPS Workshop on Blockchain and Smart Contract (Pre-ICIS), 2019
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In the current process of crowdfunding and crowdworking, many criteria-based conditions must be considered on different platforms. Assignments must be initiated for each platform, which costs time, money and resources. In order to counteract these challenges and reduce transactions, we developed a blockchain-based platform using a design-oriented approach. This platform accompanies the process from requirements to self-executing, event- and condition-controlled contracts in a partially automated manner. Based on the literature of crowdfunding, crowdworking and blockchain-based smart contracts, we derived requirements for a platform creation. While we contribute to the literature by eliciting design-oriented requirements, we show practical implications by building a blockchain-based platform concept for facilitating a more efficient combined crowdfunding and crowdworking process by reducing transactions.
Dellermann, Dominik ; Calma, Adrian ; Lipusch, Nikolaus ; Weber, Thorsten ; Weigel, Sascha ; Ebel, Philipp:The Future of Human-AI Collaboration: A Taxonomy of Design Knowledge for Hybrid Intelligence Systems.. In: Hawaii International Conference on System Sciences (HICSS), 2019
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Recent technological advances, especially in the field of machine learning, provide astonishing progress on the road towards artificial general intelligence. However, tasks in current real-world business applications cannot yet be solved by machines alone. We, therefore, identify the need for developing socio-technological ensembles of humans and machines. Such systems possess the ability to accomplish complex goals by combining human and artificial intelligence to collectively achieve superior results and continuously improve by learning from each other. Thus, the need for structured design knowledge for those systems arises. Following a taxonomy development method, this article provides three main contributions: First, we present a structured overview of interdisciplinary research on the role of humans in the machine learning pipeline. Second, we envision hybrid intelligence systems and conceptualize the relevant dimensions for system design for the first time. Finally, we offer useful guidance for system developers during the implementation of such applications.
Billert, Matthias ; Peters, Christoph: Die Digitalisierungsstraße für die Stadt der Zukunft. In: Innovative Verwaltung vol. 41. Wiesbaden, Germany, Springer Fachmedien (2019), Nr. 7-8/2019, pp. 172–189
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Vorgestellt wird ein innovatives, multimediales Portal, die sogenannte Digitalisierungsstraße, mit dem die Kompetenzen der Bürgerinnen und Bürger kollaborativ in die Entwicklung neuer städtischer Dienstleistungen eingebunden werden können.
Miedzianowski, N. ; Saternus, Z. ; Staab, K.: Stakeholderbezogene und rechtliche Anforderungen an ein Erreichbarkeitsmanagement-System. In: ZD-Aktuell (2019), Nr. 15, p. 04381
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Lamla, Jörn ; Hess, Thomas:Einführung: Die Zukunft der Datenökonomie. Zwischen Geschäftsmodell, Kollektivgut und Verbraucherschutz.. In: Ochs, C. ; Friedewald, M. ; Hess, T. ; Lamla, J. (eds.): Die Zukunft der Datenökonomie. Zwischen Geschäftsmodell, Kollektivgut und Verbraucherschutz. Wiesbaden : Springer VS, 2019, pp. 1–7
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Janson, Andreas:Improving Processes and Outcomes in Digital Learning Environments - Empirical Foundations and Design Principles for Scaffolding in Technology-mediated Learning. vol. Research on IT / Service / Innovation / Collaboration. Kassel, Germany : kassel university press, 2019 — ISBN 978-3-7376-0628-8
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Hegenberg, J. ; Schimpf, D. W. ; Fischer, N. ; Schmidt, L.:Pilotstudie zur Roboterunterstützung des Menschen bei manueller Montage.. In: Gesellschaft für Arbeitswissenschaft e. V. (ed.): Arbeit interdisziplinär analysieren - bewerten - gestalten: 65. Kongress der Gesellschaft für Arbeitswissenschaft (Dresden 2019). Dortmund : GfA-Press, 2019, pp. 1–6 (B.9.1)
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In diesem Beitrag wird ein Konzept zur Integration einer kollaborativen Roboterunterstützung an einem manuellen Montagearbeitsplatz vorgestellt. Dazu wurde exemplarisch ein Arbeitsplatz in der Wellenvormontage der Getriebefertigung in der Automobilindustrie betrachtet. Die Arbeitsprozesse bei der manuellen Montage wurden analysiert und das darauf basierende Konzept in einem vollfunktionsfähigen Mock-up umgesetzt, welcher die Montage ohne und mit Roboterunterstützung ermöglicht. Auf Basis dieses Mock-ups wurde eine Nutzerstudie (n = 8) durchgeführt, die die Ergonomie und Gebrauchstauglichkeit des Konzepts sowie das wirtschaftliche Potenzial der Roboterunterstützung evaluiert.
Agarwal, Nivedita ; Bästlein, Moritz ; Böhmann, Tilo ; Ernst, Sissy-Josefina ; Fritzsche, Albrecht ; Grotherr, Christian ; Hoffmann, Holger ; Klemm, Pablo ; et al.:Nutzergenerierte Dienstleistungssysteme zur digitalen Transformation von Organisationen.. In: Digivation : Springer, 2019
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Leimeister, J.-M. ; David, Klaus:Chancen und Herausforderungen des digitalen Lernens Methoden und Werkzeuge für innovative Lehr-Lern-Konzepte, Kompetenzmanagement in Organisationen. Berlin, Heidelberg : Springer-Verlag, 2019 — ISBN 978-3-662-59389-9
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Knote, Robin ; Thies, Laura Friederike ; Söllner, Matthias ; Roßnagel, Alexander ; Leimeister, Jan Marco:Gestaltung smarter persönlicher Assistenten zwischen Rechtsverträglichkeit und Dienstleistungsqualität: Gestaltungsziele und Zielkonflikte.. In: David, K. ; Geihs, K. ; Lange, M. ; Stumme, G. (eds.): INFORMATIK 2019. vol. Lecture Notes in Informatics (LNI) - Proceedings: Series of the Gesellschaft für Informatik (GI). Bonn, Germany : Gesellschaft für Informatik (GI), 2019 — ISBN 978-3-88579-688-6, pp. 435–448
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Smarte persönliche Assistenten von Amazon, Google und zahlreichen anderen Anbietern ermöglichen es, qualitativ hochwertige elektronische Dienstleistungen anzubieten. Gleichzeitig bringen diese Systeme auch viele Risiken mit sich. Berichte von diskriminierenden oder unverständlichem Systemverhalten häufen sich und verursachen Skepsis in der Gesellschaft. Diesen Problemen kann mit einer gleichermaßen rechtsverträglichen und qualitätsorientierten IT-Gestaltung entgegengewirkt werden. In diesem Beitrag werden Rechtsverträglichkeit und Dienstleistungsqualität als elementare Ziele für die Gestaltung smarter persönlicher Assistenten eingeführt. Zudem werden Zielkonflikte wie die Personalisierung von Leistungen bei gleichzeitiger Datensparsamkeit diskutiert und Implikationen für die Systemgestaltung erläutert.
Schöbel, Sofia ; Söllner, Matthias:Bedeutung von Präferenzen für Spielelemente - Analyse und Empfehlungen für die Anpassung von Spielelementen durch Nutzerpräferenzen.. In: Leimeister, J. M. ; David, K. (eds.): Chancen und Herausforderungen des digitalen Lernens - Methoden und Werkzeuge für innovative Lehr-Lern-Konzepte. Berlin : Springer, 2019 — ISBN 9783662595442, pp. 121–139
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Heidecker, F. ; Bieshaar, M. ; Sick, B.:Towards Corner Case Identification in Cyclists’ Trajectories.. In: Proceedings of CSCS ’19: 3rd ACM Symposium on Computer Science in Cars (CSCS ’19), 2019
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Schindler, Stephan: China: Biometrische Gesichtserkennung in der Volksrepublik China. In: ZD-Aktuell (2019), p. 06494
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Billert, Matthias Simon ; Peters, Christoph: Die Digitalisierungsstraße für die Stadt der Zukunft – Kollaborative Entwicklung eines Portals für bürger-initiierte Dienstleistungsentwicklung im Kontext einer Smart City. In: Siemon, D. ; Robra-Bissantz, S. (eds.) HMD Praxis der Wirtschaftsinformatik vol. 56 (2019), pp. 172–189
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Mrass, Volkmar ; Peters, Christoph:Digitale Wertschöpfung durch Crowd Services: Neue Formen des Kundensupports am Beispiel Mila und Swisscom.. In: Robra-Bissantz, S. ; Lattemann, C. (eds.): Digital Customer Experience - mit digitalen Diensten Kunden gewinnen und halten. vol. Edition HMD. Wiesbaden, Germany : Springer, 2019, pp. 271–282
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Rietsche, Roman ; Frei, Daniel ; Stoeckli, Emanuel ; Söllner, Matthias:Not all Reviews are Equal - a Literature Review on Online Review Helpfulness.. In: vom Brocke, J. ; Gregor, S. ; Müller, O. (eds.): European Conference on Information Systems (ECIS) 2019 : European Conference on Information Systems (ECIS), 2019
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The amount of online reviews is growing significantly. Between 2014 and 2017 the number of reviews for TripAdvisor grew by 300% and for Yelp by 208%. However, not all online reviews are equally valuable. Some reviews are perceived to be more helpful or trustworthy then others. Hence, a plethora of scholars have investigated the role of online reviews and researched factors and characteristics determining its helpfulness. Nevertheless, mixed findings were found. Consequently, the purpose of our paper is to present a holistic and representative analysis of the literature on factors indicating the helpfulness of online reviews. In total, we analyzed 81 journal articles and inductively created a framework resulting in four dimensions: review-related factors, reviewer-related factors, reader related factors and environment-related factors. The results reveled that researchers mainly focused on factors of the first two dimensions and that the findings are inconsistent and need to be solved by future research.
Draude, Claude:“Everything will be screen.” Readdressing Screenness through Art-based Experiments.. In: Borgdorff, H. ; Peters, P. ; Pinch, T. (eds.): Dialogues Between Artistic Research and Science and Technology Studies : London/New York: Routledge, 2019 — ISBN 9781138343856, pp. 139–154
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Lipusch, Nikolaus ; Dellermann, Dominik ; Ebel, Philipp ; Bretschneider, Ulrich ; Leimeister, Jan Marco: Radically Rethinking the Way Crowdfunding Works: The Case of Jumpstartfund and the Hyperloop. In: International Journal of Entrepreneurial Venturing (IJEV) vol. 11 (2019), Nr. 6, pp. 598–619
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In this research, we explore the unique case of JumpStartFund, a new crowdfunding platform that is used to develop the Hyperloop project. To this end, we employ an in-depth single case study to examine the participation architecture of the platform as well as the Hyperloop campaign content, based on which we derive a new crowdfunding model. The derived crowdfunding model differs from existing crowdfunding models in that it allows entrepreneurs to develop their business with the crowdmore actively. Our research has important implications for research and practice. First, we introduce a new crowdfunding model that expands the boundaries of existent models. Second, we explain how our model helps to more efficiently leverage the potential inherent in the crowd thereby redefining entrepreneurial success within crowdfunding. Third, we discuss how our findings contribute to existent research within the context of crowdsourcing.
Geminn, C.: Daten für alle? – Zum Diskussionspapier der SPD. In: ZD-Aktuell (2019), Nr. 4, p. 06492
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Hornung, G. ; Roßnagel, A. (eds.):Grundrechtsschutz im Smart Car – Kommunikation, Sicherheit und Datenschutz im vernetzten Fahrzeug. Wiesbaden : Springer Vieweg, 2019
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Nikolaus, Lipusch ; Dominik, Dellermann ; Philipp, Ebel:Managing Initial Coin Offerings: Towards a Taxonomy of ICO Processes.. In: Hawaii International Conference on System Sciences (HICSS), 2019
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07.01.2019-12.01.2019
Kress, V. ; Zernetsch, S. ; Doll, K. ; Sick, B.:Pose Based Trajectory Forecast of Vulnerable Road Users.. In: IEEE Symposium Series on Computational Intelligence (SSCI). Xiamen, 2019, pp. 1200–1207
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Kleinschmidt, Stefan ; Peters, Christoph ; Leimeister, Jan Marco: How to scale up contact-intensive services: ICT-enabled service innovation. In: Journal of Service Management (JOSM) vol. 31 (2019), Nr. 4, pp. 793–814
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Purpose While scaling is a viable approach to respond to growing demand, service providers in contactintensive services – such as education, healthcare, and social services – struggle to innovate their offerings. The reason is that the scaling of contact-intensive services – unlike purely digital settings – has resource limitations. To help ease the situation, the purpose of this article is to identify and describe the practices used in scaling contact-intensive services to support ICTenabled service innovation. Design/methodology/approach The research draws on an in-depth analysis of three contact-intensive services to examine service innovation practices. The analysis informs model development for service scaling. Findings The analysis uncovers three practices for service scaling – service interaction analysis, service pivoting, and service validation – and their related activities that are applied in a cyclic and iterative logic. Research limitations/implications While the findings reveal that the scalability of contact-intensive services is limited and determined by the formative characteristic of personal interaction, this study and its findings describe how to leverage scalability in contact-intensive services. Practical implications The insights into the practices enable service providers of contact-intensive services to iteratively revise their service offerings and the logic of creating value with the service. Originality/value This research identifies and describes for the first time the practices for the scaling of contactintensive services as an operationalisation of ICT-enabled service innovation.
Ochs, Carsten:Optionalität und Prediktivität: Privatheit und der Subjektivierungswiderspruch algorithmisch organisierter Überwachungsgesellschaften.. In: Köberer, N. ; Prinzing, M. ; Stapf, I. (eds.): Aufwachsen mit Medien: Zur Ethik mediatisierter Kindheit und Jugend. Baden-Baden : Nomos, 2019, pp. 213–226
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Johannes, P.: EDSA: Leitlinien 2/2019 zur Vertragsdatenverarbeitung. In: ZD-Aktuell (2019), p. 06821
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Barev, Torben Jan ; Janson, Andreas:Towards an Integrative Understanding of Privacy Nudging – Systematic Review and Research Agenda.. In: Annual Pre-ICIS Workshop on HCI Research in MIS (Pre-ICIS), 2019
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When using digital technologies, various data traces are left behind for collection, storage and analysis. Innovative solutions for information systems are needed that mitigate privacy risks and foster information privacy. One mechanism to achieve this are privacy nudges. Nudges are a concept from behavioural economics to influence individual’s decisions. This paper focusses on building an integrative understanding of privacy nudging. Specifically, we conceptualize the constituting characteristics of privacy nudges by conducting a systematic literature review to cover the current state of knowledge in the interdisciplinary privacy nudge literature stream. We structure the intrapersonal factors that determine effectiveness for each privacy nudge in a morphological box and conceptualize on this basis current research coverage as well as demand for future research. Finally, we develop theoretical propositions contributing to the discussion of how to study and design effective privacy nudges that can pave the way for more privacy sensitive IT systems.
Hornung, Gerrit ; Hollick, M:The Emergency Responsive Digital City, Proceedings of the World Congress on Resilience, Reliability and Asset Management.. In: Proceedings of the World Congress on Resilience, Reliability and Asset Management, 2019, pp. 136–139
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Roßnagel, Alexander ; Geminn, Christian:Spezielle datenschutzrechtliche Fragen der Weiternutzung von Sozial- und Gesundheits-daten für die medizinische Forschung.. In: Dierks, C. ; Roßnagel, A. (eds.): Sekundärnutzung von Sozial- und Gesundheitsdaten – Rechtliche Rahmenbedingungen. vol. TMF-Schriftenreihe. Berlin, 2019, pp. 125–243
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Kropf, Jonathan ; Lamla, Jörn ; Leimeister, Jan Marco ; Oeste-Reiß, Sarah ; Weber, Thorsten:Gestaltung hybrider Entscheidungsarchitekturen zur Förderung kritischer Verbraucherkompetenzen.. In: Internationale Tagung Wirtschaftsinformatik (WI). vol. 14. Siegen, Germany, 2019
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Internetanwendungen, Soziale Medien, wirkmächtige KI-Algorithmen und Active‐Learning‐Technologien bilden heute bereits hybride Entscheidungsarchitekturen. Gemeint sind damit die oft unbemerkten Rahmungen innerhalb derer (Verbraucher-)Entscheidungen getroffen werden und die sich auf hybride Verbindungen von künstlicher und menschlicher Intelligenz verteilen. Die Gestalter solcher Architekturen werden dabei mit einer großen Machtfülle ausgestattet, deren Konsequenzen gegenwärtig nur schwer absehbar sind. Daraus ergibt sich für die Forschung die Frage, wie hybride Entscheidungsarchitekturen gesellschaftlich-wünschenswert gestaltet sein sollten, damit sie die kritischen Kompetenzen der Verbraucher erhalten und fördern, anstatt sie unbemerkt zu untergraben. Wir schlagen dafür ein hybrides Entscheidungsunterstützungssystem vor, das durch Erkenntnisse aus den Literaturbereichen der Rechtfertigungsordnungen, Mapping of Controversies sowie auf pädagogischen Aspekten zur Kompetenzförderung aufbaut. Methodisch folgen wir einem gestaltungsorientierten Vorgehen, dem sog. Design Science Approach.
Hornung, Gerrit ; Wagner, B: Der schleichende Personenbezug. Die Zwickmühle der Re-Identifizierbarkeit in Zeiten von Big Data und Ubiquitous Computing. In: Hornung, G. (ed.) Computer und Recht vol. 9 (2019), pp. 565–574
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Kress, Viktor ; Jung, Janis ; Zernetsch, Stefan ; Doll, Konrad ; Sick, Bernhard:Start Intention Detection of Cyclists using an LSTM Network.. In: Draude, C. ; Lange, M. ; Sick, B. (eds.): INFORMATIK 2019: 50 Jahre Gesellschaft für Informatik -- Informatik für Gesellschaft (Workshop-Beiträge). vol. P-295. Bonn : Gesellschaft für Informatik e.V., 2019, pp. 219–228
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Braun, S.: Kooperation oder Konfrontation? Erste Bußgelder nach DS-GVO. In: ZD-Aktuell (2019), Nr. 2, p. 06445
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Schomburg, Sabrina ; Reubert, P: Regulierung von Nudging durch Private im geplanten Medienstaatsvertrag?. In: ZD-Aktuell (2019), p. 06877
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Ossenkopf, Marie ; Jorgensen, Mackenzie ; Geihs, Kurt: Hierarchical Multi-Agent Deep Reinforcement Learning to Develop Long-Term Coordination. In: Proceedings of the 34th Annual ACM Symposium on Applied Computing SAC (2019)
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Hornung, Gerrit ; Lurtz, H:Cyber-physische Systeme zwischen rechtlichen Anforderungen und rechtskonformer Gestaltung.. In: Obermaier, R. (ed.): Handbuch Industrie 4.0 und Digitale Transformation. Betriebswirtschaftliche, technische und rechtliche Herausforderungen : Springer, 2019, pp. 113–136
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Dürrschnabel, Dominik ; Hanika, Tom ; Stumme, Gerd: Drawing Order Diagrams Through Two-Dimension Extension (2019). — cite arxiv:1906.06208Comment: 16 pages, 12 Figures
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Order diagrams are an important tool to visualize the complex structure of ordered sets. Favorable drawings of order diagrams, i.e., easily readable for humans, are hard to come by, even for small ordered sets. Many attempts were made to transfer classical graph drawing approaches to order diagrams. Although these methods produce satisfying results for some ordered sets, they unfortunately perform poorly in general. In this work we present the novel algorithm DimDraw to draw order diagrams. This algorithm is based on a relation between the dimension of an ordered set and the bipartiteness of a corresponding graph.
Klingauf, A. ; Hegenberg, J. ; Lambrecht, F. ; Bieland, D. ; Schmidt, L. ; Sommer, C.:Nutzeranforderungen an ein Assistenzsystem für den ÖPNV.. In: Gesellschaft für Arbeitswissenschaft e. V. (ed.): Arbeit interdisziplinär analysieren - bewerten - gestalten: 65. Kongress der Gesellschaft für Arbeitswissenschaft (Dresden 2019). Dortmund : GfA-Press, 2019, pp. 1–6 (B.2.6)
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Um die Attraktivität des öffentlichen Nahverkehrs zu erhöhen, wurde ein Mobilitätsassistenzsystem (MAS) konzipiert, das die Nutzer_innen in den Bereichen Anschlusssicherung und Belegungszustand sowie durch einen integrierten Lieferdienst unterstützt. Dazu wurde eine Anforderungserhebung mit Experten (n = 5) und Nutzer_innen (n = 426) durchgeführt, womit auch die Anforderungen von älteren Menschen und Menschen mit Einschränkungen besonders berücksichtigt werden sollten. Entgegen der Erwartungen ist das MAS für diese Gruppen nicht attraktiver als für andere Nutzer_innen. Die meisten Nutzer_innen wünschen sich die Interaktion mittels einer App, ältere Menschen und Menschen mit Einschränkungen bevorzugen andere Schnittstellen.
Hornung, Gerrit ; Hofmann, K: 工业4.0与法律：三大核心挑战 (Übersetzung des Beitrags „Industrie 4.0 und das Recht: Drei zentrale Herausforderungen“, Hornung, G. (Hrsg.), Rechtsfragen der Industrie 4.0. Datenhoheit – Verantwortlichkeit – rechtliche Grenzen der Vernetzung, Baden-Baden 2018). In: Law and Modernization vol. 5 (2019), pp. 161–184
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Industrie Norm 33453, Deutsche:(DIN SPEC 33453) Development of digital service systems. Entwicklung digitaler Dienstleistungssysteme : Beuth publishing DIN, 2019
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Barnes, C. M. ; Bellman, K. ; Botev, J. ; Diaconescu, A. ; Esterle, L. ; Gruhl, C. ; Landauer, C. ; Lewis, P. R. ; et al.:CHARIOT - Towards a Continuous High-Level Adaptive Runtime Integration Testbed.. In: 2019 IEEE 4th International Workshops on Foundations and Applications of Self* Systems (FAS*W) : IEEE, 2019, pp. 52–55
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Krupitzer, Christian ; Tomforde, Sven:The Organic Computing Doctoral Dissertation Colloquium: Status and Overview in 2019.. In: Draude, C. ; Lange, M. ; Sick, B. (eds.): INFORMATIK 2019: 50 Jahre Gesellschaft für Informatik -- Informatik für Gesellschaft (Workshop-Beiträge). vol. P-295. Bonn : Gesellschaft für Informatik e.V., 2019, pp. 545–554
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Kress, V. ; Jung, J. ; Zernetsch, S. ; Doll, K. ; Sick, B.:Pose Based Start Intention Detection of Cyclists.. In: 2019 IEEE Intelligent Transportation Systems Conference (ITSC), 2019, pp. 2381–2386
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Hornung, Gerrit ; Bauer, S:Privacy through Certification? The new Certification Scheme of the General Data Protection Regulation,.. In: Rott, P. (ed.): Certification - Trust, Accountability, Liability, 2019
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Geminn, Christian: Die Forschungstätigkeit des Arztes im Spannungsfeld der Schweigepflicht. In: Recht der Datenverarbeitung (RDV) (2019), pp. 116–122
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Peters, Christoph ; Leimeister, Jan Marco:Cloud, Hybrid Intelligence und digitale Arbeit für das Engineering von soziotechnischen Systemen.. In: Boes, A. ; Langes, B. (eds.): Die Cloud und der digitale Umbruch in Wirtschaft und Arbeit. Strategien, Best Practices und Gestaltungsimpulse.. Freiburg : Haufe Group, 2019 — ISBN 978-3-648-12473-4, pp. 91–99
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Als Wirtschaftsinformatiker streben wir danach, Lösungen für relevante Probleme zu gestalten, die technisch stabil, ökonomisch sinnvoll und gesellschaftlich wünschenswert sind. Dies tun wir, indem wir eine soziotechnische Systemperspektive einnehmen. Dieser Artikel präsentiert dabei eine inhaltliche Leitorientierung, wie bereits bekannte und neu aufgekommene Phänomene und Konzepte ganzheitlich ineinandergreifen können.
Roßnagel, Alexander ; Geminn, Christian ; Nebel, Maxi ; Bile, Tamer:Evaluation der Datenschutz-Grundverordnung, Policy Paper des Forums Privatheit und selbst-bestimmtes Leben in der digitalen Welt. Karlsruhe, 2019
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Geminn, Christian: Was wird aus den Innovationen der Datenschutz-Grundverordnung?. In: ZD-Aktuell (2019), p. 04361
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Geminn, Christian: IMPACT: Neues Forschungsprojekt zu sozialen Folgen und rechtlicher Gestaltung der Kommunikation mit künstlichen Sprachassistenten. In: ZD-Aktuell (2019), p. 06596
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Imas, Constantin ; Urbon, Ute ; Kraft, Jürgen ; Herbst, Ingo ; Schöbel, Sofia ; Glavas, Marija ; Oeste-Reiß, Sarah:Entwicklung von Lernvideos, Lernzielen und Testfragen in kleinen und mittelständischen Unternehmen und ich Weiterbildungsinstituten.. In: Leimeister, J. M. ; David, K. (eds.): Chancen und Herausforderungen des digitalen Lernens - Methoden und Werkzeuge für innovative Lehr-Lern-Konzepte. Berlin : Springer, 2019 — ISBN 9783662595442, pp. 199–218
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Dürrschnabel, Dominik ; Hanika, Tom ; Stubbemann, Maximilian: FCA2VEC: Embedding Techniques for Formal Concept Analysis (2019). — cite arxiv:1911.11496Comment: 25 pages
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Embedding large and high dimensional data into low dimensional vector spaces is a necessary task to computationally cope with contemporary data sets. Superseding latent semantic analysis recent approaches like word2vec or node2vec are well established tools in this realm. In the present paper we add to this line of research by introducing fca2vec, a family of embedding techniques for formal concept analysis (FCA). Our investigation contributes to two distinct lines of research. First, we enable the application of FCA notions to large data sets. In particular, we demonstrate how the cover relation of a concept lattice can be retrieved from a computational feasible embedding. Secondly, we show an enhancement for the classical node2vec approach in low dimension. For both directions the overall constraint of FCA of explainable results is preserved. We evaluate our novel procedures by computing fca2vec on different data sets like, wiki44 (a dense part of the Wikidata knowledge graph), the Mushroom data set and a publication network derived from the FCA community.
Maier, N.:Erweiterte berufsbezogene Erreichbarkeit – Lösungsvorschläge zum Gesundheits- und Persönlichkeitsschutz. Wiesbaden : Springer Vieweg, 2019
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Dürrschnabel, Dominik ; Hanika, Tom ; Stumme, Gerd:DimDraw - A Novel Tool for Drawing Concept Lattices.. In: Cristea, D. ; Ber, F. L. ; Missaoui, R. ; Kwuida, L. ; Sertkaya, B. (eds.): ICFCA (Supplements), CEUR Workshop Proceedings. vol. 2378 : CEUR-WS.org, 2019, pp. 60–64
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Knote, Robin:Towards Solving the Personalization-Privacy Paradox for Smart Personal Assistants.. In: Hawaii International Conference on System Sciences (HICSS), 2019
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Roßnagel, Alexander ; Geminn, Christian ; Nebel, Maxi ; Bile, Tamer:Evaluation der Datenschutz-Grundverordnung. https://www.forum-privatheit.de/wp-content/uploads/Policy-Paper-Evaluation-der-DSGVO.pdf : Forum Privatheit, 2019
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Klingauf, A. ; Funk, J. ; Lüüs, A. ; Schmidt, L.:Wirkung von interaktiven 3D-360°-Lernvideos in der praktischen Ausbildung von Handwerkern.. In: Pinkwart, N. ; Konert, J. (eds.): DELFI 2019: 17. Fachtagung Bildungstechnologien (Berlin 2019), Lecture Notes in Informatics (LNI) - Proceedings. Bonn : Gesellschaft für Informatik, 2019, pp. 145–156
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Die vorliegende Studie vergleicht den Einsatz von 3D-360°\hbox{-}}Lernvideos mit konventionellen Lernvideos bei der praktischen Ausbildung von Handwerkern. Es wurde die Hypothese geprüft, dass Motivation und Ablenkung durch die Technologie einen gegensätzlichen Einfluss auf den Lernerfolg haben und so die vorliegenden gemischten Befunde in diesem Feld erklären. Insgesamt 20 Auszubildende des ersten Lehrjahrs der Ausbildung zum Hoch- bzw. Tiefbaufacharbeiter lernten entweder mit konventionellen Lernvideos am Laptop oder mit 3D\hbox{-}}360°-Videos, die auf einem Smartphone\hbox{-}}basierten Head-Mounted Display angeschaut wurden. Der Lernerfolg wurde anhand einer praktischen Aufgabe gemessen, die von zwei unabhängigen Ratern bewertet wurde. Die durch die Lernmethode ausgelöste Motivation und Ablenkung der Lernenden wurde mithilfe von Fragebögen gemessen. Wie erwartet zeigte sich in der Gruppe der mit 3D\hbox{-}}360°\hbox{-}}Videos Lernenden sowohl eine höhere Motivation als auch eine höhere Ablenkung als in der Kontrollgruppe. Der Lernerfolg unterschied sich nicht zwischen den Gruppen. Die erwarteten Korrelationsmuster zur Unterstützung der weiteren Teilhypothesen konnten nicht gefunden werden.
Ochs, Carsten:Teilhabebeschränkungen und Erfahrungsspielräume: eine negative Akteur-Netzwerk-Theorie der Privatheit.. In: Behrendt, H. ; Loh, W. ; Matzner, T. ; Misselhorn, C. (eds.): Privatsphäre 4.0. Eine Neuverortung des Privaten im Zeitalter der Digitalisierung. Stuttgart : Metzler, 2019, pp. 13–31
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Peters, Christoph ; Simmert, Benedikt ; Eilers, Karen ; Leimeister, Jan Marco:Future Organization Report 2019. St.Gallen, Switzerland and Frankfurt, Germany : Institut für Wirtschaftsinformatik der Universität St.Gallen, Campana & Schott Business Services GmbH, 2019
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Felde, Maximilian ; Hanika, Tom:Formal Context Generation Using Dirichlet Distributions.. In: Endres, D. ; Alam, M. ; Sotropa, D. (eds.): ICCS, Lecture Notes in Computer Science. vol. 11530 : Springer, 2019 — ISBN 978-3-030-23182-8, pp. 57–71
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Ossenkopf, Marie ; Jorgensen, Mackenzie ; Geihs, Kurt: When Does Communication Learning Need Hierarchical Multi-Agent Deep Reinforcement Learning. In: Cybernetics and Systems vol. 50, Taylor & Francis (2019), Nr. 8, pp. 672–692
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AbstractMulti-agent systems need to communicate to coordinate a shared task. We show that a recurrent neural network (RNN) can learn a communication protocol for coordination, even if the actions to coordinate are performed steps after the communication phase. We show that a separation of tasks with different temporal scale is necessary for successful learning. We contribute a hierarchical deep reinforcement learning model for multi-agent systems that separates the communication and coordination task from the action picking through a hierarchical policy. We further on show that a separation of concerns in communication is beneficial but not necessary. As a testbed, we propose the Dungeon Lever Game and we extend the Differentiable Inter-Agent Learning (DIAL) framework. We present and compare results from different model variations on the Dungeon Lever Game.
Ossenkopf, Marie ; Castro, Gastón ; Pessacg, Facundo ; Geihs, Kurt ; De Cristóforis, Pablo:Long-Horizon Active SLAM system for multi-agent coordinated exploration.. In: 2019 European Conference on Mobile Robots (ECMR) : IEEE, 2019, pp. 1–6
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Kein „Verbotsprinzip“ und kein „Verbot mit Erlaubnisvorbehalt“ im Datenschutzrecht – Zur Dogmatik der Datenverarbeitung als Grundrechtseingriff. In: Roßnagel, A. (ed.) Neue Juristische Wochenschrift (2019), Nr. 1, pp. 1–5
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Roßnagel, Alexander: Innovationen der Datenschutz-Grundverordnung Wer greift die Chancen zu besserem Datenschutz auf?. In: DuD (2019), Nr. 8, pp. 467–472
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Bretschneider, Ulrich ; Heider, Anne ; Rüsen, Tom ; Hülsbeck, Marcel:Diffusion von digitalen Technologien und Trends in Familienunternehmen.. In: Kollmann, T. (ed.): Handbuch Digitale Wirtschaft, Springer Reference Wirtschaft. Wiesbaden, Germany : Springer Gabler, 2019 — ISBN 978-3-658-17345-6
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Der vorliegende Beitrag beschreibt den Diffusionsprozess von digitalen Technologien und Trends in Familienunternehmen (FU). Die Diffusion von digitalen Technologien und Trends in FU gestaltet sich wegen des Einfluss der Eigentümerfamilie auf das FU im Vergleich zu Nicht-FU grundlegend anders. Eigenschaften der Familie sowie des FU und der digitalen Technologien und Trends wirken sich zugleich negativ auf die Geschwindigkeit, mit der digitale Technologien und Trends den Diffusionsprozess im FU durchlaufen, aus. Dagegen entwickeln FU spezifische Strategien, die dabei helfen, diese Zeitbarrieren zu umgehen.
Li, Mahei Manhai ; Peters, Christoph ; Leimeister, Jan Marco:Linking Strategy and Operations using a Service Business Model – a hypergraph theory-based approach.. In: International Research Symposium on Advancing Service Research and Practice (QUIS). Karlstad, Sweden, 2019
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Business models (BM) have become increasingly important and versatile abstract tools to describe businesses on both, a strategic, as well as operational level (Wirtz et al. 2015). These BMs are used to understand what a business does to remain competitive, strategically (Johnson et al. 2008). Existing research (Johnson et al. 2008; Wirtz et al. 2015) identified the importance of BMs for the success of businesses. Also, practice revealed that financially successful companies ascertain twice the level of importance than less successful companies (IBM, 2007). A BM is a conceptual and structural implementation of a business strategy and the foundation of business processes (Osterwalder and Pigneur, 2002). BMs include a strategy, input factors, processes, with an underlying financial model to ensure the profitability. In recent years BMs have become synonymous with entire companies. Literature shows a heterogeneous abstraction of BMs, sometimes referring to BMs as business unit or products (Wirtz et al. 2015). Service systems literature shows similar structures, with service systems referring to exchanges on an individual level, among business units or entire ecosystems (Chandler and Lusch 2015). We propose that a service systems perspective can systematically model businesses and capture its inherent complexities (Peters et al. 2015). The service business model (SBM) includes (1) the value proposition, which is the firm’s offering to the customer; (2) the value creation and delivery mechanisms, reflecting the value chain; (3) value capture and analysis of the BM and its constituent elements to understand how the firm generates profit. Our model, thus, captures the holistic characteristic of BM, while retaining the detailed information on how the business is constructed. Businesses are confronted with a complex, digitalized world, in which important service innovations are continuously emerging, which need to be designed and linked to the BM of a company, thus addressing the strategy to execution gap (Kaplan and Norton 2009). Typical BM tools, such as the business model canvas (Osterwalder et al. 2005), only provide a descriptive framework for structuring businesses, missing the interrelations of its BM elements. This is important for operational decision makers, who implement new service innovations. In sum, without a SBM that relates the high level strategic information to the detailed operations perspective, BMs only reflect half the picture. Hence, we develop a hypergraph theory-based underlying model for businesses to understand how the business works both from a strategic perspective, as well as from a detailed operational perspective. Our SBM makes value creation visible, relying on a systems perspective linking multi-dimensional input factors with set of activities and actors and thus capturing value proposition, value creation and delivery and value capture mechanisms (Li & Peters 2018). Attached table shows an overview of our SBM, which relies on a formally model (Li et al. 2018). It represents a base structure of businesses and can be used for operational purposes too (e.g.: scheduling, planning and cost analyses) and thus enables a high level strategic perspective to be integrated into the operational perspective, bridging the gap between strategy and execution for successful businesses.
Felde, Maximilian ; Stumme, Gerd: Interactive Collaborative Exploration using Incomplete Contexts (2019)
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A common representation of information about relations of objects and attributes in knowledge domains are data-tables. The structure of such information can be analysed using Formal Concept Analysis (FCA). Attribute exploration is a knowledge acquisition method from FCA that reveals dependencies in a set of attributes with help of a domain expert. However, in general no single expert is capable (time- and knowledge-wise) of exploring knowledge domains alone. Therefore it is important to develop methods that allow multiple experts to explore domains together. To this end we build upon results on representation of incomplete knowledge [2, 8-10], adapt the corresponding version of attribute exploration to fit the setting of multiple experts and suggest formalizations for key components like expert knowledge, interaction and collaboration strategy. Furthermore we discuss ways of comparing collaboration strategies and suggest avenues for future research.
Roßnagel, Alexander:Quantifizierung der Persönlichkeit – aus grundrechtlicher und datenschutzrechtlicher Sicht.. In: Baule, B. ; Hohnsträter, D. ; Krankenhagen, S. ; Lamla, J. (eds.): Transformationen des Konsums – Vom industriellen Massenkonsum zum individualisierten Digitalkonsum. Baden-Baden, 2019, pp. 33–53
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Roßnagel, Alexander: Elektronische Schriftkommunikation (De-Mail, Vertrauensdienste). In: Veit, S. ; Reichard, C. ; Wewer, G. (eds.) Handbuch zur Verwaltungsreform. Wiesbaden, Springer Fachmedien Wiesbaden (2019), pp. 617–628 — ISBN 978-3-658-21563-7
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Die digitale Transformation der Verwaltung setzt auch eine digitale Kommunikation zwischen Bürger oder Organisationen (z. B. Unternehmen) und Verwaltung voraus. Soweit diese asynchron mit Hilfe von Schriftzeichen erfolgt, handelt es sich um eine elektronische Schriftkommunikation. Sie bedarf einer technischen und rechtlichen Absicherung, wenn es um die Kommunikation rechtlich schwerwiegender Willenserklärungen geht. Die Absicherung kann durch Sicherungsmechanismen, wie sie Vertrauensdienste zur Verfügung stellen oder durch ausreichend sichere Kommunikationsdienste wie De-Mail erfolgen.
Britton, Loren ; Klumbyte, Goda ; Draude, Claude: Doing thinking: revisiting computing with artistic research and technofeminism. In: Digital Creativity vol. 30 (2019), Nr. 4, pp. 1–16
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Ohly, Sandra: Characteristics of challenging situations: two policy-capturing studies. In: Journal of Managerial Psychology vol. 34, Emerald Publishing Limited (2019), Nr. 3, pp. 170–183
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Purpose Although the appraisal of a situation as challenging has positive effects on performance and stress-related outcomes, the situational and individual characteristics that make challenge appraisal likely are far from clear. The purpose of this paper is to test these characteristics based on a review of the conceptualizations of challenge and the associated positive effects.Design/methodology/approach Potential characteristics of challenge are tested in two policy-capturing studies using a full factorial experimental design.Findings Results reveal that situations are appraised as more challenging than threatening when goal importance, task difficulty and controllability are high rather than low.Research limitations/implications These results indicate that challenge and threat are distinguished through the means a person believes to have available to cope with demands, an aspect of controllability.Originality/value This paper provides a first experimental test of characteristics of challenging situations.
Opfer, Stephan ; Jakob, Stefan ; Jahl, Alexander ; Geihs, Kurt:ALICA 2.0 - Domain-Independent Teamwork.. In: Proceedings of 42nd German Conference on Artificial Intelligence (KI2019), 2019
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Schomberg, Sabrina: Nudger: Forschungsprojekt zu Privacy Nudges in der digitalisierten Arbeitswelt. In: ZD-Aktuell (2019), p. 06493
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Simmert, Benedikt ; Weinert, Tim ; Janson, Andreas ; Peters, Christoph ; Ebel, Philipp ; Leimeister, Jan Marco:Kontinuierliche Verbesserung von internationalen Geschäftsmodellen in der Berufsbildung.. In: Berufsbildung International. vol. Geschäftsmodellentwicklung : DLR Projektträger, 2019, pp. 32–33
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Simo, H. ; M., Waidner. ; Geminn, C.:Intrusion Detection Systems für vernetzte Fahrzeuge – Konzepte und Herausforderungen für Privatheit und Cyber-Sicherheit.. In: Roßnagel, A. ; Hornung, G. (eds.): Grundrechtsschutz im Smart Car. Wiesbaden : Springer Vieweg, 2019
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Opfer, Stephan ; Jakob, Stefan ; Geihs, Kurt:Teaching Commonsense and Dynamic Knowledge to Service Robots.. In: 11th Conference on Social Robotics (ICSR2019), 2019
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Simmert, Benedikt ; Eilers, Karen ; Leimeister, Jan Marco:Interne Crowd Work an der Schnittstelle sozialer und technischer Elemente der digitalen Arbeitsorganisation.. In: Schröter, W. (ed.): Der mitbestimmte Algorithmus - Gestaltungskompetenz für den Wandel der Arbeit. Mössingen-Talheim, Germany : Talheimer Verlag, 2019 — ISBN 978-3-89376-181-4, pp. 155–166
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Friedrichs, Juliane ; Ohly, Sandra: Wir mögen uns nicht und arbeiten trotzdem zusammen - wie Aufgabeninterdependenzen den Zusammenhang zwischen interpersonellen Teamprozessen und Zufriedenheit beeinflussen. In: Gruppe. Interaktion. Organisation. Zeitschrift für Angewandte Organisationspsychologie (GIO) vol. 50 (2019), Nr. 1, pp. 15–24
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This article in the journal Gruppe. Interaktion. Organisation focusses on the relationship between interpersonal team processes and team satisfaction. Interpersonal team processes include conflict- and affectmanagement as well as motivational team processes. In this context, the role of task interdependence is examined. Student teams (n = 25) were interviewed to examine if the degree of task interdependence positively influences the relationship of interpersonal processes and team satisfaction. The results show on the one hand, that interpersonal team processes are positively related to perceived satisfaction at the team level and, on the other hand, that task interdependence is a moderator variable. Contrary to the assumption that task interdependencies reinforce the relationship between interpersonal processes and team satisfaction, it was shown that there is a compensatory effect in the low interdependence condition. Teams with lower task interdependence and good conflict-, affect- and motivation management are almost as satisfied with their team as teams with higher task interdependence and good conflict-, affect- and motivation management. Implications are discussed.
Li, Mahei Manhai ; Peters, Christoph ; Leimeister, Jan Marco ; Zierau, Naim:Digitale Servicesysteme.. In: Gassman, O. ; Sutter, P. (eds.): Digitale Transformation gestalten - Geschäftsmodelle, Erfolgsfaktoren, Checklisten. Zweite.. München : Carl Hanser Verlag GmbH & Co. KG, 2019 — ISBN 978-3-446-45868-0, pp. 33–41
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Oeste-Reiß, Sarah ; Simmert, Benedikt: Collaboration Engineering. In: Gronau, N. ; Becker, J. ; Kliewer, N. ; Leimeister, J. M. ; Overhage, S. (eds.) Enzyklopädie der Wirtschaftsinformatik – Online-Lexikon vol. Vol. 10. Berlin, GITO (2019)
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Ochs, Carsten ; Büttner, Barbara:Selbstbestimmte Selbst-Bestimmung? Wie digitale Subjektivierungspraktiken objektivierte Datensubjekte hervorbringen.. In: Ochs, C. ; Friedewald, M. ; Hess, T. ; Lamla, J. (eds.): Die Zukunft der Datenökonomie Zwischen Geschäftsmodell, Kollektivgut und Verbraucherschutz. Wiesbaden : Springer, 2019
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Schomberg, Sabrina ; Lurtz, H: Pflicht zur Benennung eines Datenschutzbeauftragten. In: ZD-Aktuell (2019), p. 06732
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Ochs, C. ; Friedewald, M. ; Hess, T. ; Lamla, J. (eds.):Die Zukunft der Datenökonomie. Zwischen Geschäftsmodell, Kollektivgut und Verbraucherschutz. Wiesbaden : Springer, 2019
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Digitale Daten gelten sowohl als Quelle für Wirtschaftswachstum, Innovation und Arbeitsplätze wie auch als Treiber der datenbasierten Reorganisation praktisch aller gesellschaftlichen Bereiche („Datafizierung“). Die datenökonomisch befeuerten Transformationsprozesse des Sozialen werfen dementsprechend vielfältige Fragen auf: Welche Daten sollen von wem wie verwertbar sein? Wie lässt sich legitime Verfügungsmacht gestalten? Usw. Der Band behandelt diese Fragen aus interdisziplinärer Perspektive.
Klose, E. ; Funk, J. ; Hegenberg, J. ; Schmidt, L.: Feldstudie zur physiologischen und videogestützten Analyse von Nutzerzustand und -verhalten bei der Orientierung und Navigation am Frankfurter Flughafen. In: Zeitschrift für Arbeitswissenschaft vol. 73 (2019), Nr. 1, pp. 45–57
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Die vorliegende Studie untersucht das Verhalten und den Zustand von Menschen während der Navigation durch den Frankfurter Flughafen. Dafür absolvierten die zwölf Teilnehmer drei flughafentypische Navigationsaufgaben, während Gangparameter, die Herz-Kreislauf-Aktivität und die Blickbewegung aufgezeichnet wurden. Anschließend wurde die videogestützte Retrospektive-Think-Aloud-Methode genutzt, um einen Einblick in die Gedanken und Strategien der Probanden zu bekommen. Die vielfältigen sowohl quantitativ als auch qualitativ analysierten Daten liefern Erkenntnisse über das Gehverhalten, die Herzrate und die Herzratenvariabilität sowie das Informationssuch- und -aufnahmeverhalten. Außerdem werden Problemstellen bei der Orientierung und Navigation am Flughafen ermittelt. Die Ergebnisse werden diskutiert und auf den Anwendungsbereich der Reiseassistenz angewendet, um in einem menschzentrierten Ansatz den Informationsbedarf für ein Augmented-Reality-Reiseassistenzsystem zu spezifizieren und Gestaltungsempfehlungen dafür abzuleiten. Praktische Relevanz: Es wird eine Vielzahl an Daten aus einer Feldstudie unter natürlichen Bedingungen zur Verfügung gestellt, mithilfe derer Nutzerverhalten und -zustand bei der Navigation beschrieben und analysiert werden können. Der Versuchsraum - ein komplexer Verkehrsknotenpunkt - ist für diverse Anwendungsbereiche von Interesse. Die vorgestellten Daten können auch als Referenzdaten für ähnliche Studien von Nutzen sein, z. B. um zu vergleichen, ob und inwieweit sich das Verhalten und der Zustand von Reisenden durch eine Navigationsunterstützung verändert.
Li, Mahei Manhai ; Peters, Christoph ; Leimeister, Jan Marco:Developing a Production Structure Model using Service-Dominant Logic – A hypergraph-based Modeling Approach.. In: INFORMS International Conference on Service Science (ICSS), 2019
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To make a fundamental shift towards value orientation, manufacturing companies strategically move to integrate services into their portfolio. While manufacturing firms rely on production information systems as the backbone of their operations, these systems are based on product structure models (e.g., bill of materials). This poses a problem because services do not adhere to the goods-dominant perspective of product structures. To solve this divide, this paper proposes an integrative mathematical model for both production systems and service systems. This model draws upon concepts of service-dominant logic and is based on hypergraph theory. To illustrate that the production structure model includes both product structures and process structures, we further demonstrate that the production structure model can be transformed into either. Therefore, our theoretical contribution lies in introducing a structural model for production systems that is compatible with structures of a service system model. For practice, this model enables the development of production information systems that can plan and control products, services and hybrids.
Baraki, Harun ; Jahl, Alexander ; Jakob, Stefan ; Schwarzbach, Corvin ; Fax, Malte ; Geihs, Kurt: Optimizing Applications for Mobile Cloud Computing Through MOCCAA. In: Journal of Grid Computing, Springer (2019), pp. 1–26
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Klose, E. M. ; Mack, N. A. ; Hegenberg, J. ; Schmidt, L.:Text Presentation for Augmented Reality Applications in Dual-Task Situations.. In: Teather, R. ; Itoh, Y. ; Gabbard, J. ; Argelaguet, F. ; Olivier, A.-H. ; Keefe, D. (eds.): 26th IEEE Conference on Virtual Reality and 3D User Interfaces (Osaka 2019). Piscataway : IEEE, 2019, pp. 636–644
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We investigate how reading text in augmented reality (AR) glasses and the simultaneous execution of three real-world tasks interfere with each other. The three tasks are a visual stimulus-response task (VSRT), a simple walking task and a walking obstacle course. Also, we investigate the effects of different AR text positions on primary task and reading performance as well as subjective preference. We propose a novel out of sight body-locked text placement for AR text presentation to be used in dual-task situations and compare it to head-locked text placement, each in two heights. AR reading affected performance in all tasks and reading speed was affected in all dual-task conditions. Participants subjectively preferred the body-locked text presentation, while objective measures do not reflect that preference. Differences between the tasks and several interaction effects between task and AR text placement demonstrate the necessity to carefully consider the context of use when designing AR reading UIs. The presented study with 12 participants provides insights into the effects of AR glasses usage in dual-task situations and several design recommendations are derived from the results.
Klose, E. M. ; Ni, I. ; Schmidt, L.:Mit benutzerzentrierter Entwicklung zur Integration von sozialen Aspekten in die Projektarbeit.. In: Draude, C. ; Lange, M. ; Sick, B. (eds.): INFORMATIK 2019: 50 Jahre Gesellschaft für Informatik - Informatik für Gesellschaft (Workshop-Beiträge), Lecture Notes in Informatics. Bonn : Gesellschaft für Informatik e. V, 2019, pp. 447–463
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Ein benutzerzentrierter Entwicklungsansatz kann in Technologieentwicklungsprojekten dazu genutzt werden, um nachhaltige, sozial verantwortliche Gestaltungslösungen zu fördern. Dieser Ansatz rückt den Menschen und seine Aufgaben in den Fokus der technischen Systementwicklung und bezieht Benutzer sowie weitere Beteiligte von Anfang an fortlaufend in den Entwicklungsprozess ein. So wird sichergestellt, dass die entwickelten Systeme, Dienstleistungen und Produkte eine hohe Gebrauchstauglichkeit und Akzeptanz aufweisen und dass auch langfristige Folgen der Nutzung betrachtet werden. Dieser Beitrag gibt einen Überblick über das methodische Vorgehen mit diesem Ansatz und beschreibt am Beispiel eines mehrjährigen Verbundforschungsprojektes die konkrete praktische Anwendung mit exemplarischen Methoden.
Fromm, Hansjörg ; Wambsganss, Thiemo ; Söllner, Matthias:Towards a Taxonomy of Text Mining Features.. In: vom Brocke, J. ; Gregor, S. ; Müller, O. (eds.): European Conference on Information Systems (ECIS) 2019 : European Conference on Information Systems (ECIS), 2019, p. 12
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Recently, text mining has received special attention from both researchers and practitioners, since it enables the development of intelligent and automated services. Text mining has been influenced by different disciplines like computer science, statistics, computational linguistics and library and infor-mation sciences. However, text mining features that evolved in one particular discipline are often un-known or rarely used in the other disciplines. No scientific feature framework exits which facilitates costly feature engineering and evaluation. Therefore, we aim to develop a novel text mining feature taxonomy, which helps researchers and practitioners to develop, refine, compare and evaluate their text mining studies. In this research in progress paper, we focus on laying the foundation for our tax-onomy development by presenting our first two research cycles. Here, we were aiming for diversity, not completeness. We derived five dimensions and classified different text features accordingly to pro-vide a deeper understanding.
Anderson, Christoph ; Heinisch, Judith S. ; Ohly, Sandra ; David, Klaus ; Pejovic, Veljko:The Impact of Private and Work-related Smartphone Usage on Interruptibility.. In: Adjunct Proceedings of the 2019 ACM International Joint Conference on Pervasive and Ubiquitous Computing and Proceedings of the 2019 ACM International Symposium on Wearable Computers, UbiComp/ISWC ’19 Adjunct. London, United Kingdom : ACM, 2019 — ISBN 978-1-4503-6869-8, pp. 1058–1063
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In the last decade, the effects of interruptions through mobile notifications have been extensively researched in the field of Human-Computer Interaction. Breakpoints in tasks and activities, cognitive load, and personality traits have all been shown to correlate with individuals' interruptibility. However, concepts that explain interruptibility in a broader sense are needed to provide a holistic understanding of its characteristics. In this paper, we build upon the theory of social roles to conceptualize and investigate the correlation between individuals' private and work-related smartphone usage and their interruptibility. Through our preliminary study with four participants over 11 weeks, we found that application sequences on smartphones correlate with individuals' private and work roles. We observed that participants engaged in these roles tend to follow specific interruptibility strategies - integrating, combining, or segmenting private and work-related engagements. Understanding these strategies breaks new ground for attention and interruption management systems in ubiquitous computing.
Funk, J. ; Klingauf, A. ; Lüüs, A. ; Schmidt, L.:Umsetzung einer 3D-360°-Lerneinheit in der praktischen Ausbildung von Handwerkern: Einsatzmöglichkeiten von interaktiven immersiven Medien.. In: Schulz, S. (ed.): Proceedings of DELFI Workshops (Berlin 2019). Bonn : Gesellschaft für Informatik e. V, 2019, pp. 161–172
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Im Folgenden wird die Umsetzung einer Lerneinheit in der praktischen Ausbildung von Handwerker*innen mithilfe von interaktiven 3D-360°-Videos vorgestellt. Vorhandene Inhalte aus dem Projekt FAINLAB wurden dabei als interaktive immersive Anwendung für das Erlernen der Herstellung eines Fliesenspiegels umgesetzt. Die Anwendung kann mithilfe eines Smartphone-basierten Head-Mounted Displays (HMD) genutzt werden und ermöglicht durch niedrige Kosten eine breite Verwendung in der Ausbildung. Die Interaktion wird mittels mehrerer Schaltflächen ermöglicht, die per Blicksteuerung zu nutzen sind, wie eine formative Evaluation mit Studierenden absicherte. Es wird auf eine vergleichende Evaluation verwiesen, die zeigt, dass die Anwendung gegenüber dem ursprünglichen FAINLAB-Video bei gleichem Lernerfolg eine höhere Motivation der Lernenden bewirkt.
Kropf, J ; Laser, S:Digitale Bewertungspraktiken. Für eine Bewertungssoziologie des Digitalen. Wiesbaden : Springer VS, 2019
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Fujiwara, S. ; Geminn, C. ; Roßnagel, A.: Fujiwara, S./Geminn, C./Roßnagel, A. Title: Angemessenes Datenschutzniveau in Japan – Der Angemessenheitsbeschluss der Kommission und seine Folgen. In: ZD (2019), Nr. 4
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Roßnagel, Alexander:Die Korrektur technologiepolitischer Fehlentscheidungen – Am Beispiel der gesetzlichen Beendigung der Kernenergienutzung.. In: Hess, F. (ed.): Umwelt- und Planungsrecht in Zeiten des Klimawandels – Berichte aus Wissenschaft und Praxis, Festschrift für W. Baumann. Würzburg, 2019, pp. 203–220
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Roßnagel, Alexander: Unvollendete Innovationen. In: DuD (2019), Nr. 8, pp. 461–462
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Schomberg, Sabrina ; Barev, Torben Jan ; Janson, Andreas ; Hupfeld, Felix: Ansatz zur Umsetzung von Datenschutz nach der DSGVO im Arbeitsumfeld: Datenschutz durch Nudging. In: Datenschutz und Datensicherheit - DuD vol. 43. Wiesbaden, Germany, Springer Fachmedien (2019), Nr. 12, pp. 774–780
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Die noch recht neue DSGVO hat einige Änderungen mit sich gebracht, welche sich in der Praxis erst noch bewähren und innovativ umgesetzt werden müssen. Insbesondere das Arbeitsumfeld wird von der fortschreitenden Digitalisierung stark verändert und sieht sich neuen Herausforderungen des Datenschutzes gegenüber. Ein Ansatz, diesen Herausforderungen zu begegnen, könnte die Integration von Privacy Nudges in digitale betriebliche Systeme sein. Ziel von Privacy Nudges ist es dabei, den Entscheidungsprozess in digitalen Entscheidungsumgebungen gezielt zu mehr Schutz von personenbezogenen Daten und Privatheit zu beeinflussen. Diesem Ansatz nähert sich dieser Beitrag interdisziplinär durch Erkenntnisse aus der verhaltensökonomischen, informatischen und der rechtswissenschaftlichen Literatur. Schließlich werden verschiedene Szenarien für den Einsatz von Privacy Nudges in digitalen Arbeitssystemen beschrieben und bewertet.
Li, Mahei Manhai ; Peters, Christoph:From Service Systems Engineering to Service Innovation - A Modeling Approach.. In: European Conference on Information Systems (ECIS), 2019
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Due to the advent of digitization, service innovation has become even more important for both business and service research alike. Current service systems engineering approaches have employed a recombinant perspective that follows innovation mechanisms to leverage existing company resources for new service innovations. Employing these innovation mechanisms is still challenging, since there is little support on how to structure and identify these mechanisms. We propose a model-based service system engineering approach to structure existing resources into one formal model, enabling the formalization of service innovation mechanisms. The formalized service innovation mechanisms allow for a graphical illustration and enable future research to apply functions to analyze how innovation impacts entire or specific parts of service systems. Furthermore, the mathematical model enables an object-oriented value-driven perspective on service systems and is basis for graphical software tools. We contribute to literature by formalizing service innovations and its mechanisms in the context of service systems and by combining concepts of service innovation and service systems engineering. We do so by a) formalizing service innovation mechanisms and b) demonstrating the application of formal service innovations along one specific software implementation case. For practice, the service system model can with simulating the effects of service innovations.
Botache, Diego ; Dandan, Liu ; Bieshaar, Maarten ; Sick, Bernhard:Early Pedestrian Movement Detection Using Smart Devices Based on Human Activity Recognition.. In: Draude, C. ; Lange, M. ; Sick, B. (eds.): INFORMATIK 2019: 50 Jahre Gesellschaft für Informatik -- Informatik für Gesellschaft (Workshop-Beiträge). Bonn : Gesellschaft für Informatik e.V., 2019, pp. 229–238
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Nebel, Maxi: Die Zulässigkeit der Erhebung des Klarnamens nach den Vorgaben der Datenschutz-Grundverordnung. In: Kommunikation und Recht (K&R) (2019), Nr. 3, pp. 148–152
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Gilga, Carolin: Ausspioniert im Kinderzimmer? - Gefahren smarter Spielzeuge. In: ZD-Aktuell (2019), p. 06822
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Bogusz, Tanja ; Lamla, Jörn:Experimentalismus in der Soziologie. Forschungsprogramm und Brückenschläge.. In: Burzan, N. (ed.): Komplexe Dynamiken globaler und lokaler Entwicklungen. Verhandlungen des 39. Kongresses der Deutschen Gesellschaft für Soziologie in Göttingen 2018, 2019
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Lamla, Jörn:Die neuen kulturellen Grenzen des Konsums. Entscheidungsarchitekturen und ihre verbraucherwissenschaftliche Reflexion.. In: Hohnsträter, D. ; Krankenhagen, S. (eds.): Konsumkultur. Eine Standortbestimmung. Berlin : Kadmos, 2019, pp. 45–58
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Janson, Andreas ; Thiel de Gafenco, Marian ; Klusmeyer, Jens ; Leimeister, Jan Marco:Theoriegeleitete und nutzerzentrierte Entwicklung von digitalen Lernangeboten und Dienstleistungen.. In: Berufsbildung International. vol. Digitalisierung : DLR Projektträger, 2019
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Kottke, Daniel ; Schellinger, Jim ; Huseljic, Denis ; Sick, Bernhard: Limitations of Assessing Active Learning Performance at Runtime. In: CoRR vol. abs/1901.10338 (2019)
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Knop, Nicolas ; Blohm, Ivo ; Leimeister, Jan Marco: Internes Crowdsourcing – Herausforderungen und Lösungsstrategien für eine erfolgreiche Transformation der Arbeitsorganisation. In: HMD Praxis der Wirtschaftsinformatik vol. 56. Wiesbaden, Germany, Springer Fachmedien (2019), Nr. 4, pp. 735–747
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Dieser Artikel hilft Organisationen ihre Mitarbeiter mittels Crowdsourcing in einem digitalen Umfeld zu reorganisieren, um Agilität, Produktivität und Effektivität der Geschäftsprozesse zu erhöhen. Internes Crowdsourcing, in welchem die kollektive Arbeitskraft, Kreativität und Intelligenz der Mitarbeiter effektiver genutzt wird, stellt eine flexible, dezentrale sowie digitale Form der Arbeitsorganisation dar. Dieser Prozess resultiert in einer Transformation der Organisation, der über die einfache Einrichtung der Crowdsourcing-Plattform hinausgeht. Aus diesem Grund stehen viele Unternehmen vor Problemen, diesen Transformationsprozess erfolgreich zu gestalten und können die Vorteile von Crowdsourcing nicht oder nur eingeschränkt nutzen. Daher identifizieren wir in unserem Artikel, basierend anhand einer multiplen Fallstudie fünf Herausforderungen und dazu passende Maßnahmen, um eine erfolgreiche Transformation zu managen. In diesem Rahmen gehen wir in einem Fall auf die Herausforderungen und Lösungen im Detail ein, auf denen wir dann in den zusätzlichen Fällen aufbauen. Schließlich präsentieren wir fünf Herausforderungen, wie inadäquate IT Fähigkeiten und die passenden Lösungsansätze, wie gezielte Schulungen. Diese erlauben es Unternehmen Internes Crowdsourcing als eine innovative Form der Arbeitsorganisation zu nutzen und Agilität sowie Effektivität interner Arbeitsprozesse zu erhöhen.
Li, Mahei Manhai ; Müller, Jennifer ; Ernst, Sissy-Josefina ; Peters, Christoph:Take the Wheel - Technology-driven Change in the Energy Sector.. In: International Conference on Information Systems (ICIS), 2019
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Nebel, Maxi: Das Sanktionsregime der DS-GVO. In: Zeitschrift für Datenschutz (2019), Nr. 6, p. VII
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Lurtz, Helmut: Projektabschluss MyCPS. In: ZD-Aktuell (2019), p. 06594
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Schreiber, Jens:Transfer Learning in the Field of Renewable Energies - A Transfer Learning Framework Providing Power Forecasts Throughout the Lifecycle of Wind Farms After Initial Connection to the Electrical Grid.. In: Tomforde, S. ; Sick, B. (eds.): Organic Computing - Doctoral Dissertation Colloquium 2018 : Kassel university press, 2019, pp. 75–87
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Gilga, Carolin: Drohender Gnadenstoß für das Privacy Shield?. In: ZD-Aktuell (2019), p. 06696
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Hornung, Gerrit:Die parlamentarische Kontrolle digitaler Räume.. In: Rechtspolitik, S. G. für ; Trier, I. für R. der U. (eds.): Bitburger Gespräche. Jahrbuch 2018. Munich, Germany : C.H.Beck, 2019, pp. 95–112
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Schreiber, Jens ; Jessulat, Maik ; Sick, Bernhard:Generative Adversarial Networks for Operational Scenario Planning of Renewable Energy Farms: A Study on Wind and Photovoltaic.. In: Tetko, I. V. ; Kurkova, V. ; Karpov, P. ; Theis, F. (eds.): Artificial Neural Networks and Machine Learning -- ICANN 2019: Image Processing. vol. 11729. Cham : Springer International Publishing, 2019 — ISBN 978-3-030-30508-6, pp. 550–564
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Groh, Olga ; Baraki, Harun ; Jahl, Alexander ; Geihs, Kurt:COOP - AutomatiC ValidatiOn of EvOlving Microservice ComPositions.. In: Proceedings of the Seminar Series on Advanced Techniques & Tools for Software Evolution (SATTOSE 2019), 2019
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Draude, Claude ; Klumbyte, Goda ; Lücking, Phillip ; Treusch, Pat: Situated algorithms: a sociotechnical systemic approach to bias. In: OIR (Online Information Review) vol. ahead-of-print (2019), Nr. ahead-of-print, pp. 16–34
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Gerken, Maike ; Bretschneider, Ulrich ; Hülsbeck, Marcel:More Than a Need for Knowledge: Understanding Drivers for Knowledge Seeking and Knowledge Sharing Behavior in Online Communities.. In: International Conference on Information Systems (ICIS). Munich, Germany, 2019 — ISBN 978-0-9966831-9-7
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Knowledge seeking is the default activity in online communities and therefore important for their functioning. Existing research studies on why members seek knowledge overlook other factors than a simple need for knowledge, resulting in an extremely narrow body of knowledge. We propose that a need for advice can increase knowledge seeking and is further shaped by perceptions of reciprocity, self-esteem, and identification with the community. By surveying 186 respondents from 34 large online communities and applying OLS regression analyses, we find that knowledge seeking is driven by need for advice and identification, but not reciprocity. The results further show that members with high self-esteem seek less knowledge. Yet, the decision to seek knowledge depends on the level of self-esteem and this is predicted by need for advice. Our results contribute to the currently sparse body on knowledge seeking and add to the realization of necessary design attributes of online communities.
Schaefermeier, Bastian ; Hanika, Tom ; Stumme, Gerd:Distances for wifi based topological indoor mapping.. In: Proceedings of the 16th EAI International Conference on Mobile and Ubiquitous Systems: Computing, Networking and Services : ACM, 2019
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Draude, C. ; Lange, M. ; Sick, B. (eds.):GI Edition Proceedings Band 295 INFORMATIK 2019, Workshop-Beiträge. vol. 295 : Gesellschaft für Informatik (GI), 2019
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Nebel, M.: Datenportabilität in Social Networks im „Schnellcheck“. In: ZD-Aktuell (2019), p. 04380
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Knauer, Uwe ; Styp von Rekowski, Cornelius ; Stecklina, Marianne ; Krokotsch, Tilman ; Pham Minh, Tuan ; Hauffe, Viola ; Kilias, David ; Ehrhardt, Ina ; et al.: Tree Species Classification Based on Hybrid Ensembles of a Convolutional Neural Network (CNN) and Random Forest Classifiers. In: Remote Sensing vol. 11 (2019), Nr. 23
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In this paper, we evaluate different popular voting strategies for fusion of classifier results. A convolutional neural network (CNN) and different variants of random forest (RF) classifiers were trained to discriminate between 15 tree species based on airborne hyperspectral imaging data. The spectral data was preprocessed with a multi-class linear discriminant analysis (MCLDA) as a means to reduce dimensionality and to obtain spatial–spectral features. The best individual classifier was a CNN with a classification accuracy of 0.73 +/− 0.086. The classification performance increased to an accuracy of 0.78 +/− 0.053 by using precision weighted voting for a hybrid ensemble of the CNN and two RF classifiers. This voting strategy clearly outperformed majority voting (0.74), accuracy weighted voting (0.75), and presidential voting (0.75).
Goldhammer, M. ; Köhler, S. ; Zernetsch, S. ; Doll, K. ; Sick, B. ; Dietmayer, K.: Intentions of Vulnerable Road Users -- Detection and Forecasting by Means of Machine Learning. In: IEEE Transactions on Intelligent Transportation Systems (2019), pp. 1–11
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Nebel, Maxi: Datenschutzrechtliche Verantwortlichkeit bei der Nutzung von Fanpages und Social Plug-ins. In: Recht der Datenverarbeitung (RDV) (2019), Nr. 1, pp. 9–13
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Goeble, Tilo:Freiraum oder Herrschaftsgebiet. Menschenrecht auf Zugang und völkerrechtliche Prinzipien als Schranken staatlichen Handelns im Internet, Der Elektronische Rechtsverkehr. vol. 41. Baden-Baden : Nomos, 2019 — ISBN 978-3-8487-6163-0
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Rudolph, Stefan ; Tomforde, Sven ; Hähner, J: Mutual Influence-aware Runtime Learning of Self-adaptation Behavior. In: ACM Transactions on Autonomous and Adaptive Systems vol. 14. New York, NY, USA, ACM (2019), Nr. 1, pp. 4:1–4:37
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Rudolph, Stefan ; Tomforde, Sven ; Hähner, Jörg: On the Detection of Mutual Influences and Their Consideration in Reinforcement Learning Processes. In: CoRR vol. abs/1905.04205 (2019)
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Kibanov, Mark ; Heiberger, Raphael H. ; Rödder, Simone ; Atzmueller, Martin ; Stumme, Gerd: Social studies of scholarly life with sensor-based ethnographic observations. In: Scientometrics (2019)
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Social network analysis is playing an increasingly important role in sociological studies. At the same time, new technologies such as wearable sensors make it possible to collect new types of social network data. We employed RFID tags to capture face-to-face interactions of participants of two consecutive Ph.D. retreats of a graduate school on climate research. We use this data in order to explore how it may support ethnographic observations and to gain further insights on scholarly interactions. The unique feature of the data is the opportunity to distinguish short and long conversations, which often have a different nature from a sociological point of view. Furthermore, an advantage of this data is the availability of socio-demographic, research-related, and situational attributes of participants. We show that, even though an interaction partner is often found rather randomly during coffee breaks of retreats, a strong homophily between participants from the same institutions or research areas exists. We identify cores of the networks and participants who play ambassador roles between communities, e.g., persons who visit the retreat for the second time are more likely to be ambassadors. Overall, we show the usefulness and potential of RFID tags for scientometric studies.
Glavas, Marija ; Schöbel, Sofia ; Oeste-Reiß, Sarah:Über die Entwicklung und Bedeutung von Berufsbildern im Lernkontext - Ergebnisse einer Marktstudie des Energieberatungsmarktes.. In: Leimeister, J. M. ; David, K. (eds.): Chancen und Herausforderungen des digitalen Lernens - Methoden und Werkzeuge für innovative Lehr-Lern-Konzepte. Berlin : Springer, 2019 — ISBN 9783662595442, pp. 11–31
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Glavas, Marija ; Schöbel, Sofia ; Oeste-Reiß, Sarah:Referenzprozesse zur Aufarbeitung von implizitem Wissen zu Tätigkeitsfeldern und Arbeitsprozessen - Ergebnisse einer Workshopserie.. In: Leimeister, J. M. ; David, K. (eds.): Chancen und Herausforderungen des digitalen Lernens - Methoden und Werkzeuge für innovative Lehr-Lern-Konzepte. Berlin : Springer, 2019, pp. 75–94
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Sandrock, C. ; Herde, M. ; Calma, A. ; Kottke, D. ; Sick, B.:Combining Self-reported Confidences from Uncertain Annotators to Improve Label Quality.. In: 2019 International Joint Conference on Neural Networks (IJCNN), 2019, pp. 1–8
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Hornung, Gerrit:Das Spannungsverhältnis zwischen Datenschutz und Informationszugang im Strafverfahren: Grundlagen, einfachgesetzliche Abwägungen und europarechtliche Überformung.. In: Zöller, M. A. ; Esser, R. (eds.): Justizielle Medienarbeit im Strafverfahren. Entwurf des Arbeitskreises Strafprozessrecht und Polizeirecht (ASP) für eine die Pressefreiheit und das Persönlichkeitsrecht schützende Auskunftserteilung im Strafverfahren, 2019, pp. 135–172
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Draude, Claude ; Lange, Martin ; Sick, Bernhard:INFORMATIK 2019: 50 Jahre Gesellschaft für Informatik – Informatik für Gesellschaft (Workshop-Beiträge), LNI P-295. Bonn : Gesellschaft für Informatik e.V., 2019 — ISBN 978-3-88579-689-3
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Simmert, Benedikt ; Ebel, Philipp Alexander ; Peters, Christoph ; Bittner, Eva Alice Christiane ; Leimeister, Jan Marco: Conquering the Challenge of Continuous Business Model Improvement - Design of a Repeatable Process. In: Business & Information Systems Engineering vol. 61 (2019), Nr. 4, pp. 451–468
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In an atmosphere of rapidly changing business environments and intense competition, adequate and timely business models are crucial for companies. Current research mainly focuses on business model development that often neglects the legacy of established companies. The paper at hand addresses this research gap by a process design which allows established companies to rethink, improve, and continually innovate their business models. Following a design science research approach, requirements for improving business models are identified by the analysis of existing literature and by expert interviews. Collaboration Engineering and a multilevel evaluation are applied to create a continuous and implementable process design for business model improvement – including specific activities, instructions, and tools. The process design represents a nascent design theory in form of an “invention” type of knowledge contribution. Moreover, going beyond existing literature, the importance of collaboration between participants in a business model improvement project is highlighted. From a practical perspective, the developed process design enables companies for continuous and recurring business model improvement without the ongoing support of professional moderators or consultants.
Geminn, Christian ; Müller, Johannes: USA: Stand der Modernisierungsbemühungen des Rechtsrahmens zur IT-Sicherheit im Fahrzeug. In: ZD-Aktuell (2019), Nr. 20, p. 06895
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Kommunikation, Sicherheit und Datenschutz im vernetzten Fahrzeug.. In: Roßnagel, A. ; Hornung, G. (eds.): Grundrechtsschutz im Smart Car – Kommunikation, Sicherheit und Datenschutz im vernetzten Fahrzeug. Wiesbaden, 2019, pp. 1–13
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Baule, B. ; Hohnsträter, D. ; Krankenhagen, S. ; Lamla, J. (eds.):Transformationen des Konsums. Vom industriellen Massenkonsum zum individualisierten Digitalkonsum. Baden-Baden : Nomos, 2019
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Wohin entwickelt sich die Konsumgesellschaft? Wie ändern sich die Einstellungen und Verhaltensweisen der Verbraucherinnen und Verbraucher? Zeichnet sich ein Wandel vom industriellen Massenkonsum zum individualisierten Digitalkonsum ab? Diesen Fragen widmete sich die dritte Jahrestagung des bundesweiten Netzwerks Verbraucherforschung, deren Ergebnisse der vorliegende Band dokumentiert.Tiefgreifende Transformationen in der Geschichte des Konsums, wie sie die Industrielle Revolution und die Digitalisierung darstellen, können nur durch disziplinübergreifende Forschungsanstrengungen verstanden werden. Neben den klassischen Fächern der Verbraucherwissenschaften wie Wirtschafts-, Rechts-, Politik- und Sozialwissenschaften kommen daher in diesem Band auch historiografische und kulturwissenschaftliche Perspektiven zum Tragen. Die Veröffentlichung hat zum Ziel, den Austausch aktueller Ergebnisse der verbraucherbezogenen Forschung in Wissenschaft und Politik zu fördern und den Wissenstransfer zu stärken.
Löber, L. I. ; Roßnagel, A.: Das Netzwerkdurchsetzungsgesetz in der Umsetzung. Bilanz nach den ersten Transparenzberichten. In: MMR 2019 (2019), Nr. 2, pp. 71–76
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Geminn, C. ; Roßnagel, A. (eds.):Evaluation der Datenschutz-Grundverordnung aus Verbrauchersicht. Berlin : Veröffentlichungen der Verbraucherzentrale Bundesverbands e.V. (vzbv), 2019
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Rietsche, Roman ; Söllner, Matthias:Insights on Using IT-Based Peer Feedback to Practice the Students’ Providing Feedback Skill.. In: Hawaii International Conference on System Sciences (HICSS), 2019
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The skills students need today, have changed over the last decades. The required skills shift more and more towards higher order thinking skills such as critical thinking, collaboration and communication. One of the main factors to practice these skills is through formative feedback. Which in our setting consist of self-assessment and peer-assessment. However, today’s lecturers are facing the challenge that the amount of students per lecture continuously increases, while the available budget stagnates. Hence, large scale lectures often lack feedback caused by the scarcity of resources. To overcome this issue we propose a teaching-learning scenario, using IT to provide formative feedback at scale. In this paper, we are focusing on the students providing feedback skill, which is important for collaborative tasks. In our experiment with around 101 master students, we were able to show that the students ability to provide feedback significantly improved by attending IT-based peer feedback iterations.
Handlungsbedarf für einen Grundrechtsausgleich.. In: Roßnagel, A. ; Hornung, G. (eds.): Grundrechtsschutz im Smart Car – Kommunikation, Sicherheit und Datenschutz im vernetzten Fahrzeug. Wiesbaden, 2019, pp. 469–481
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Draude, Claude:Non-discrimination by design?!. In: Mosene, K. ; Kettemann, M. C. (eds.): Many Worlds. Many Nets. Many Visions. Critical Voices, Visions and Vectors for Internet Governance., Internet Governance Forum Berlin 2019 : Alexander von Humboldt Institute for Internet and Society (HIIG) and Leibniz Institute for Media Research / Hans-Bredow Institut (HBI), 2019, p. 34
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Geminn, Christian ; Waidner, Michael ; Simo, Hervais:Intrusion Detection-Systeme für vernetzte Fahrzeuge – Konzepte und Herausforderungen für Privatheit und Cyber-Sicherheit.. In: Roßnagel, A. ; Hornung, G. (eds.): Grundrechtsschutz im Smart Car – Kommunikation, Sicherheit und Datenschutz im vernetzten Fahrzeug. vol. DuD-Fachbeiträge. Wiesbaden : Springer Vieweg, 2019, pp. 311–333
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Simitis, S. ; Hornung, G. ; Spiecker gen. Döhmann, S. (eds.):Datenschutzrecht. DSGVO mit BDSG : Nomos, 2019
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Geminn, Christian ; Laubach, Anne: Gewährleistung einer unabhängigen Datenschutzaufsicht in Japan – Die Schaffung der Personal Information Protection Commission. In: Zeitschrift für Datenschutz (2019), pp. 403–407
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Seufert, Sabine ; Meier, Christoph ; Soellner, Matthias ; Rietsche, Roman: A Pedagogical Perspective on Big Data and Learning Analytics: A Conceptual Model for Digital Learning Support. In: Technology, Knowledge and Learning vol. 24 (2019), Nr. 4, pp. 599–619
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The increasing prevalence of learner-centred forms of learning as well as an increase in the number of learners actively participating on a wide range of digital platforms and devices give rise to an ever-increasing stream of learning data. Learning analytics (LA) can enable learners, teachers, and their institutions to better understand and predict learning and performance. However, the pedagogical perspective and matters of learning design have been underrepresented in research thus far. In our paper, we propose a general design framework that includes critical dimensions of LA and assists in creating LA services that support educational practice. On the basis of a two-dimensional framework (individual vs. social, reflection vs. prediction), we then identify four generic approaches to LA aimed at improving learning process and learning outcomes. To demonstrate the application, four use cases are outlined that are based on four previously elaborated generic approaches to LA. Finally, we discuss the validation of the model and close with an outlook on relevant future research.
Nebel, Maxi ; Dräger, M.: Altersgrenzen für die Einwilligung von Kindern nach Art. 8 DS-GVO in den einzelnen Mitgliedstaaten. In: ZD-aktuell (2019), p. 06645
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Geminn, Christian ; Johannes, Paul Christian: Datenschutz-Folgenabschätzung im Zuge der Gesetzgebung – Das Verfahren nach Art. 35 Abs. 10 DS-GVO. In: Roßnagel, A. (ed.) ZD (2019), Nr. 10, pp. 435–440
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Durward, David ; Leimeister, Jan Marco:Crowd Work als neue Form digitaler Erwerbsarbeit – Veränderungen der Arbeitsorganisation in Unternehmen.. In: Kohlrausch, B. ; Schildmann, C. ; Voss, D. (eds.): Neue Arbeit – neue Ungleichheiten – Folgen der Digitalisierung. Weinheim, Germany : Beltz Juventa, 2019 — ISBN 978-3-7799-4941-1
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Grundrechtsverwirklichung im vernetzten und automatisierten Straßenverkehr.. In: Roßnagel, A. ; Hornung, G. (eds.): Grundrechtsschutz im Smart Car – Kommunikation, Sicherheit und Datenschutz im vernetzten Fahrzeug. Wiesbaden, 2019, pp. 17–42
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Schäfermeier, Bastian ; Hanika, Tom ; Stumme, Gerd:Distances for WiFi Based Topological Indoor Mapping.. In: 16th EAI International Conference on Mobile and Ubiquitous Systems: Computing, Networking and Services (MobiQuitous), November 12--14, 2019, Houston, TX, USA, 2019 — ISBN 978-1-4503-7283-1/19/11
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For localization and mapping of indoor environments through WiFi signals, locations are often represented as likelihoods of the received signal strength indicator. In this work we compare various measures of distance between such likelihoods in combination with different methods for estimation and representation. In particular, we show that among the considered distance measures the Earth Mover's Distance seems the most beneficial for the localization task. Combined with kernel density estimation we were able to retain the topological structure of rooms in a real-world office scenario.
Krämer, Nicole C. ; Artelt, André ; Geminn, Christian ; Hammer, Barbara ; Kopp, Stefan ; Manzeschke, Arne ; Roßnagel, Alexander ; Slawik, Pauline ; et al.: KI-basierte Sprachassistenten im Alltag: Forschungsbedarf aus informatischer, psychologischer, ethischer und rechtlicher Sicht (2019)
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Projekt IMPACT: ein von der VW-Stiftung gefördertes Forschungsprojekt mit dem Ziel, die Chancen und Risiken künstlicher Intelligenz innerhalb einer Lebensspanne zu untersuchen; vom Kind zum Senior.
Durward, David ; Simmert, Benedikt ; Blohm, Ivo ; Peters, Christoph:Internal Crowd Work as a Source of Empowerment - An Empirical Analysis of the Perception of Employees in a Crowdtesting Project.. In: International Conference on Wirtschaftsinformatik (WI). Siegen, Germany, 2019
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Internal crowd work has emerged as a new form of digital gainful employment that changes the nature of work. However, the possible effects of internal crowd work on the individual level have been largely neglected. In this paper, we therefore present our research in progress which is concerned with the effects of work characteristics in internal crowd work that have impact on the individual’s empowerment and satisfaction. Thus, we developed our research model and conducted an online survey amongst 118 internal crowd workers of a Swiss bank who were asked to test new software. Our expected contribution will increase the understanding of internal crowd work and provide important insights for organizations to (re-) design work on internal IT-platforms.
Knote, Robin:Towards Smart Assistance Systems for Physical and Manual Tasks.. In: European Conference on Information Systems (ECIS). Stockholm, Sweden, 2019
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Although automation of physical work is continuously accelerated by advances in information technol-ogy, many complex tasks, such as in manufacturing, assembly or maintenance still require human work. In this context, Smart Physical and Manual Task Assistance Systems (SPMTAs) support workers by adapting to their current situation or task. Since the importance of physical work is still evident in a digitized economy, there is a need for properly designed SPMTAs in order to increase job satisfaction and performance of workers by taking off physical and cognitive strain. However, scientific literature on how to design SPMTAs is sparse. Combining sociotechnical systems and work design theory, we derived propositions and conducted interviews with workers of a German car component manufacturer as part of a design science project. The company uses three SPMTAs for assembly, final inspection, and tool management. As a result, we elicited 18 design requirements for SPMTAs to increase job satisfac-tion and performance. In this research-in-progress paper, we present our preliminary results and dis-cuss next steps.
König, Immanuel ; Heilmann, Erik ; Henze, Janosch ; David, Klaus ; Wetzel, Heike ; Sick, Bernhard:Using grid supporting flexibility in electricity distribution networks.. In: David, K. ; Geihs, K. ; Lange, M. ; Stumme, G. (eds.): INFORMATIK 2019: 50 Jahre Gesellschaft für Informatik – Informatik für Gesellschaft, LNI. vol. P-294. Kassel, Germany : Gesellschaft für Informatik e.V., 2019, pp. 531–544
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Durward, David ; Simmert, Benedikt ; Peters, Christoph ; Blohm, Ivo ; Leimeister, Jan Marco:How to Empower the Workforce – Analyzing Internal Crowd Work as a Neo-Socio-Technical System.. In: Hawaii International Conference on System Sciences (HICSS), 2019
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2018[ to top ]

Schneider, Tim ; Janson, Andreas ; Schöbel, Sofia:Understanding the Effects of Gamified Feedback in Mobile Learning – An Experimental Investigation.. In: International Conference on Information Systems (ICIS). San Francisco, California, USA, 2018
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Hofmann, Johanna ; Roßnagel, Alexander:Rechtsverträgliche Gestaltung von Cloud-Services.. In: Krcmar, H. ; Eckert, C. ; Roßnagel, A. ; Sunyaev, A. ; Wiesche, M. (eds.): Management sicherer Cloud-Services : Springer, 2018 — ISBN 978-3-658-19579-3, pp. 25–57
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Hornung, Gerrit:Erosion traditioneller Prinzipien des Datenschutzrechts durch Big Data.. In: Hoffmann-Riem, W. (ed.): Big Data - Regulative Herausforderungen. Baden-Baden, Germany : Nomos Verlagsgesellschaft, 2018, pp. 81–98
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Hofmann, Johanna ; Roßnagel, Alexander:Vertrauensschutz durch Zertifizierung.. In: Krcmar, H. ; Eckert, C. ; Roßnagel, A. ; Sunyaev, A. ; Wiesche, M. (eds.): Management sicherer Cloud-Services, 2018 — ISBN 978-3-658-19579-3, pp. 69–80
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Janson, Andreas ; Schöbel, Sofia:Nudging Privacy in Digital Work Systems – Towards the Development of a Design Theory.. In: International Conference on Information Systems (ICIS), 2018
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Digitization changes our society, the way we work and the way we generate value in work systems. More precisely, it equally affects how business and employees organize their work. While there is a tremendous innovation potential for businesses such as more flexible and efficient work arrangements, there are also tremendous privacy risks. Such privacy risks especially relate to issues that employees leave data traces in every working step while being oftentimes not aware of their generated data. Employees leave data traces on intranet platforms such as Wikis and on external work tools such as Slack and reveal not only personal information but also company insights. At the same time companies must handle new privacy regulations such as the European General Data Protection Regulation (GDPR) which do not only affect companies in the European countries but also providers of information systems (IS) all around the world that offer their services in Europe. Thus, innovative approaches for considering challenges that exist because of privacy related issues are needed. A promising approach to overcome the aforementioned privacy issues of digital working environments is the application of digital nudges in IS – small design modifications in digital choice environments which guide peoples’ behavior (Weinmann et al. 2016). The nudge theory – originally derived from behavioral economics– is based on the irrational behavior of human beings. A nudge “is any aspect of the choice architecture that alters people’s behavior in a predictable way without forbidding any options or significantly changing their economic incentives” (Thaler and Sunstein 2008, p. 6) and is typically applied in offline environments, e.g., to nudge individuals for being organ donors through a default opt-in. By relying on the concept of nudging, individuals in digital work system could be nudged to improve their decisions when disclosing data. This is especially prevalent, since many individuals are not aware about how their data is used. As such, there is a lack of research regarding nudging in context of digital work systems and privacy which should be addressed in a socio-technical research approach. By examining the impact and perception of digital nudges in work systems, we want to shed light on the application, design and effects of nudges to overcome challenges that arise because of privacy related issues. We therefore first examine use cases and requirements for nudging in digital work system under the consideration of users, companies and other stakeholders. Since we draw on a socio-technical view, we incorporate requirements that relate to a legal as well as an ethical perspective for nudging privacy. By this means, we develop a design theory for privacy nudging by an iterative design and evaluation process in the field. The ultimate goal is to improve decisions concerning data disclosure and, secondary, increase by this means trust and acceptance of digital work systems by lowering privacy concerns. By developing a design theory, we contribute to the body of knowledge with a more profound understanding of digital nudging in the context of privacy as well as with prescriptive design knowledge for nudging in digital work systems.
Hofmann, Johanna ; Lins, Sebastian ; Lang, Michael ; Banse, Christian ; Doll, Bernhard ; Kühn, Ramona ; Laatzen, Britta ; de Meer, Hermann ; et al.:Handlungsempfehlungen.. In: Krcmar, H. ; Eckert, C. ; Roßnagel, A. ; Sunyaev, A. ; Wiesche, M. (eds.): Management sicherer Cloud-Services, 2018 — ISBN 9783658195786, pp. 379–390
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Schmidt, Andreas ; Stumme, Gerd:Prominence and Dominance in Networks.. In: Faron Zucker, C. ; Ghidini, C. ; Napoli, A. ; Yannick, T. (eds.): Proceedings of the 21th International Conference on Knowledge Engineering and Knowledge Management (EKAW), Lecture Notes in Computer Science : Springer, 2018, pp. 370–385
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Lurtz, Helmut ; Engel, Friederike: Bedeutung der Netzneutralität für die Industrie 4.0. In: ZD-Aktuell (2018), p. 05951
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Li, Mahei Manhai ; Peters, Christoph ; Leimeister, Jan Marco:A Hypergraph-based Modeling Approach for Service Systems.. In: INFORMS International Conference on Service Science (ICSS), 2018
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Currently, research on service science has emerged as its own discipline, where service systems are its basic unit of analysis. However, without a clearly defined modeling approach for service systems, analyzing a service system is challenging. We therefore propose a conceptual hypergraph-based modeling approach, which can be used to model services for both traditional goods-dominant businesses, as well as service-businesses. We define key elements of a service system while drawing upon hypergraph theory and present three modeling properties which are required to model a service systems graph (SSG). The focus of SSGs is to describe the relationships between the various resources, actors and activities, thus configuring a service system. It provides the foundation for computer graphic simulations and database applications of service business structure for future research.
Johannes, P. C.: : Privatheit in der Rechtsprechung des BVerfG. In: ZD-Aktuell (2018), Nr. 4, p. 06007
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Johannes, Paul:Datenschutz im Polizei- und Sicherheitsrecht.. In: Bretthauer, S. ; Döhmann, L. (eds.): Dokumentation zum Datenschutz mit Informationsfreiheitsrecht. Baden-Baden, 2018
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Schlegel, B. ; Mrowca, A. ; Wolf, P. ; Sick, B. ; Steinhorst, S.:Generalizing Application Agnostic Remaining Useful Life Estimation Using Data-Driven Open Source Algorithms.. In: IEEE 3rd International Conference on Big Data Analysis. Shanghai, China, 2018
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Schreiber, Jens ; Sick, Bernhard:Quantifying the Influences on Probabilistic Wind Power Forecasts.. In: International Conference on Power and Renewable Energy. vol. 3, 2018, p. 6
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In recent years, probabilistic forecasts techniques were proposed in research as well as in applications to integrate volatile renewable energy resources into the electrical grid. These techniques allow decision makers to take the uncertainty of the prediction into account and, therefore, to devise optimal decisions, e.g., related to costs and risks in the electrical grid. However, it was yet not studied how the input, such as numerical weather predictions, affects the model output of forecasting models in detail. Therefore, we examine the potential influences with techniques from the field of sensitivity analysis on three different black-box models to obtain insights into differences and similarities of these probabilistic models. The analysis shows a considerable number of potential influences in those models depending on, e.g., the predicted probability and the type of model. These effects motivate the need to take various influences into account when models are tested, analyzed, or compared. Nevertheless, results of the sensitivity analysis will allow us to select a model with advantages in the practical application.
Bachmann, Marek ; Morold, Michel ; David, Klaus:The Wireless Seat Belt Requirements, Experiments, and Solutions for Pedestrian Safety.. In: Proceedings of the 2018 IEEE International Conference on Pervasive Computing and Communications Workshops (PerCom Workshops). Athens, Greece : IEEE, 2018, pp. 250 – 255
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Augenstein, Dominik ; Fleig, Christian ; Dellermann, Dominik:Towards Value Proposition Mining – Exploration of Design Principles.. In: International Conference on Information Systems (ICIS), 2018
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Johannes, P. C.: Privacy by Design und Privay by Default – Regelungen für Polizei- und Strafverfolgungsbehörden im Vergleich zur DS-GVO. In: ZD-Aktuell (2018), Nr. 16, p. 06291
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Hornung, Gerrit: Mitlauschen bei den lieben Kleinen: Kindeswohl oder Kindesgefährdung? Editorial. In: Verbraucher und Recht (2018), pp. 41–42
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Hornung, Gerrit:Sind neue Technologien datenschutzrechtlich regulierbar? Herausforderungen durch „Smart Everything“.. In: Roßnagel, A. ; Hansen, M. ; Friedewald, M. (eds.): Die Fortentwicklung des Datenschutzes.. Wiesbaden, Germany : Springer Vieweg, 2018, pp. 315–336
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Johannes, Paul:Einführung in den Datenschutz.. In: TRUST – Training zum Umgang mit sensiblen Forschungsdaten. Universität Marburg, 2018
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Johannes, P. C.: Stand der Anpassung der Datenschutzgesetze der Länder an die DS-GVO. In: ZD-Aktuell (2018), Nr. 10, p. 06148
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Schöbel, Sofia ; Janson, Andreas:Avatar Designs are in the Eye of the Beholder – About Identifying Preferred Avatar Designs in Digital Learning.. In: Annual Pre-ICIS Workshop on HCI Research in MIS (Pre-ICIS), 2018
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Gamification focuses on using game-like elements in non-entertainment-based contexts. An example for a game element is an avatar. Although lots of research has focused on analyzing avatars in gamification, little is known about which kind of avatar design users prefer. Especially avatars in gamification that are used as tutors or mentors for learning purposes do not spark the interest of users. Thus, the goal of our paper is to analyze the kinds of avatar designs users of digital learning environments such as learning management systems would prefer. For that purpose, we use a best-worst scaling approach to analyze if the familiarity and shape of avatars determine user preferences in gamification. Our research will contribute to research and practice as it delivers implications about how to design avatars in gamified learning systems. We will enrich theory by getting a better understanding about the general meaning of user-centered avatar designs in gamification.
Laufs, U ; Maucher, J ; Miedzianowski, Nadine ; Rost, K ; Saternus, Z: Erste Ergebnisse des Forschungsprojekts „SANDRA“. In: ZD-Aktuell (2018), p. 06151
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Löber, L. I. ; Rösner, L.:Fakt oder Fake? – Falschinformationen im digitalen Zeitalter aus medienpsychologischer und rechtlicher Perspektive.. In: Kassel, G. (ed.): Sagen! Vom Erzählen zwischen Antike und digitalem Zeitalter. Zum 200. Jahrestag der Deutschen Sagen der Brüder Grimm, 2018, pp. 87–97
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Schöbel, Sofia ; Janson, Andreas:Gamifying Information Systems - Improving Motivation and Effective Use Through a Theory-motivated Method.. In: International Conference on Information Systems (ICIS), 2018
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Hornung, G. (ed.):Rechtsfragen der Industrie 4.0. Datenhoheit, Verantwortlichkeit, rechtliche Grenzen der Vernetzung,. Baden-Baden, Germany : Nomos Verlagsgesellschaft, 2018
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Schäfermeier, Bastian ; Hanika, Tom ; Stumme, Gerd: Distances for WiFi Based Topological Indoor Mapping (2018). — cite arxiv:1809.07405Comment: 10 pages, 6 figures
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For localization and mapping of indoor environments through WiFi signals, locations are often represented as likelihoods of the received signal strength indicator. In this work we compare various measures of distance between such likelihoods in combination with different methods for estimation and representation. In particular, we show that among the considered distance measures the Earth Mover's Distance seems the most beneficial for the localization task. Combined with kernel density estimation we were able to retain the topological structure of rooms in a real-world office scenario.
Hofmann, Johanna M.:Dynamische Zertifizierung – Der Weg zum verordnungskonformen Cloud Computing.. In: Roßnagel, A. ; Hansen, M. ; Friedewald, M. (eds.): Die Fortentwicklung des Datenschutzes.. Wiesbaden, Germany : Springer Vieweg, 2018, pp. 293–310
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Jahl, Alexander ; Tran, Tam Huu ; Baraki, Harun ; Geihs, Kurt:Behavior-based Service Change Detection.. In: 4th IEEE International Conference on Smart Computing (SMARTCOMP) : IEEE, 2018
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Husemann, Charlotte ; Pittroff, Fabian ; Schulz, Andreas D.: Fitness-Tracking als Informationsproblem. Zu den Potenzialen und Herausforderungen rechtlicher Regulierung und pädagogischer Vermittlung. In: Datenschutz und Datensicherheit (2018), Nr. 11, pp. 694–700
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Johannes, P. C.: Gegenüberstellung – Verfahrensverzeichnisse für Polizei- und Strafverfolgungsbehörden nach BDSG, DS-GVO und JI-Richtlinie. In: ZD-Aktuell (2018), Nr. 8, p. 06100
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Schmidt, L.: Unbeschwert urban unterwegs. In: 2. Vernetzungstreffen "Individuelle und adaptive Technologien für eine vernetzte Mobilität", Vortrag, 2. Vernetzungstreffen "Individuelle und adaptive Technologien für eine vernetzte Mobilität", Vortrag.. Berlin (2018)
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Lipusch, Nikolaus ; Dellermann, Dominik ; Oeste-Reiß, Sarah ; Ebel, Philipp:Innovating Beyond the Fuzzy Front End: How to Use Reward-Based Crowdfunding to Co-create with Customers.. In: Hawaii International Conference on System Sciences (HICSS), 2018 — ISBN 978-0-9981331-1-9, pp. 4202–4211
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Current research suggests that crowdfunding not only serves as an alternative source of capital but also as a flexible tool allowing start-ups to systematically integrate a crowd into their innovation processes. However, an adequate understanding of how start-ups can systematically leverage the co-creation potential of their early customers during crowdfunding is still nascent. Against this background, the aim of this research is to conceptualize and examine the concept of co-creation in the context of reward-based crowdfunding. In doing so, we distinguish it from other methods of user integration in the realm of open innovation and discuss how entrepreneurs can leverage reward-based crowdfunding to engage their customers in the development and deployment of their product and service offerings.
Johannes, P. C.: Datenschutz und der Koalitionsvertrag der GroKo. In: ZD-Aktuell (2018), Nr. 6, p. 06056
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Hübener, Isabel ; David, Klaus:FeSNOC: A Novel Feature Selection Algorithm Based on Niche Overlapping Coefficient.. In: Proceedings of the 2018 IEEE International Conference on Pervasive Computing and Communications (PerCom). Athens, Greece : IEEE, 2018, pp. 165 – 171
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Hornung, Gerrit ; Lurtz, Helmut:Datenschutzrechtliche Herausforderungen und Lösungen der Industrie 4.0.. In: Bauer, W. ; Marrenbach, D. (eds.): MyCPS - Migrationsunterstützung für die Umsetzung menschzentrierter Cyber-Physical Systems. Abschlussbericht. Stuttgart, Germany : Frauenhofer IAO, 2018, pp. 83–97
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Schmidt, L. ; et al.:Informatorisch-mentale Arbeitsformen.. In: Schlick, C. ; Bruder, R. ; Luczak, H. (eds.): Arbeitswissenschaft. Berlin : Springer, 2018, pp. 186–275
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Hornung, Gerrit ; Schindler, Stephan ; Schneider, Jana: Die Europäisierung des strafverfahrensrechtlichen Datenschutzes. Zum Anwendungsbereich der neuen Datenschutz-Richtlinie für Polizei und Justiz. In: Zeitschrift für Internationale Strafrechtsdogmatik (2018), pp. 566–574
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Das neue Datenschutzrecht bei Polizei und Justiz - Europäisches Datenschutzrecht und deutsche Datenschutzgesetze.. In: Johannes, P. ; Weinhold (eds.): , 2018
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Li, Mahei Manhai ; Peters, Christoph ; Ernst, Sissy-Josefina ; Leimeister, Jan Marco:Towards Bridging the Gap between Business Model Innovation and Practice Using Hypergraph-based Modeling.. In: INFORMS International Conference on Service Science (ICSS), 2018
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Hornung, Gerrit ; Hofmann, Kai:Handlungsempfehlungen.. In: Hornung, G. (ed.): Rechtsfragen der Industrie 4.0. Datenhoheit, Verantwortlichkeit, rechtliche Grenzen der Vernetzung. Baden-Baden, Germany : Nomos Verlagsgesellschaft, 2018, pp. 213–220
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Hornung, Gerrit:Datenschutz als Herausforderung der Arbeit in der Industrie 4.0.. In: Hirsch-Kreinsen, H. ; Ittermann, P. ; Niehaus, J. (eds.): Digitalisierung industrieller Arbeit. Die Vision Industrie 4.0 und ihre sozialen Herausforderungen. Baden-Baden, Germany : Nomos Verlagsgesellschaft, 2018, pp. 233–255
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Li, Mahei Manhai ; Peters, Christoph:Reconceptualizing Service Systems – Introducing Service System Graphs.. In: International Conference on Information Systems (ICIS), 2018
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Currently, research on service science has emerged as its own discipline, where service systems are its basic unit of analysis. However, without a clearly defined modeling approach for service systems, analyzing a service system is challenging. We therefore propose a conceptual hypergraph-based modeling approach, which can be used to model services for both traditional goods-dominant businesses, as well as service-businesses. We define key elements of a service system while drawing upon hypergraph theory and present three modeling properties which are required to model a service systems graph (SSG). The focus of SSGs is to describe the relationships between the various resources, actors and activities, thus configuring a service system. It provides the foundation for computer graphic simulations and database applications of service business structure for future research.
Hornung, Gerrit ; Herfurth, Constantin:Datenschutz bei Big Data. Rechtliche und politische Implikationen.. In: König, C. ; Schröder, J. ; Wiegand, E. (eds.): Big Data – Chancen, Risiken, Entwicklungstendenzen. Wiesbaden, Germany : Springer VS, 2018, pp. 149–184
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Laubach, A.: 欧州の一般データ保護規制の枠組みにおける新しい連邦データ保護法。(dt.: „Das neue Bundesdatenschutzgesetz im Rahmen der Datenschutzgrundverordnung“). In: ZD-Aktuell (2018), Nr. 12
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Laubach, A.: „iPAT 2018 – 1. Interdisziplinärer Workshop des Graduiertenkollegs2050“. In: ZD-Aktuell (2018), Nr. 14, p. 06253
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Lasry, George ; Kopal, Nils ; Wacker, Arno: Ciphertext-Only Cryptanalysis of Short Hagelin M-209 Ciphertexts. In: Cryptologia, Taylor & Francis (2018)
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The Hagelin M-209 was a mechanical encryption device used by the U.S. Army during World War 2 (WWII) and the Korean War, as well as by other armies and diplomatic services. The Hagelin M-209 has been the focus of extensive research by codebreaking agencies. Several ciphertext-only attacks have been published, but, those attacks are applicable only to the case of long cryptograms. In this article, the authors present a nested hill-climbing and simulated annealing algorithm for recovering the full key settings from ciphertext only, with ciphertexts as short as 500 letters, compared to a minimum of 750 to 1,250 letters with prior methods. With this method, the authors have solved the last problem of a public Hagelin M-209 challenge contest.
Husemann, Charlotte ; Pittroff, Fabian:Smarte Regulierung in Informationskollektiven. Bausteine einer Informationsregulierung im Internet der Dinge.. In: Roßnagel, A. ; Friedewald, M. ; Hansen, M. (eds.): Die Fortentwicklung des Datenschutzes.. Wiesbaden, Germany : Springer Vieweg, 2018, pp. 337–360
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Schöbel, Sofia ; Janson, Andreas:Is it all about Having Fun? - Developing a Taxonomy to Gamify Information Systems.. In: European Conference on Information Systems (ECIS), 2018
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Gamification is a well-known approach that refers to the use of game design elements in information systems to make monotonous and tedious tasks more enjoyable. However, research and practice show that game design elements are oftentimes chosen and integrated in information systems randomly, therefore impeding the outcomes of such systems. In this regard, taxonomies can guide system developers, i.e., in selecting and combining game design elements to gamify their information system. Nonetheless, existing taxonomies do not provide such guidance for gamifying information systems. Therefore, the goal of our research is to consolidate the state of the art of gamification research and rigorously develop a gamification taxonomy. To achieve our goal, we conducted a systematic literature review and developed a taxonomy based on a rigorous taxonomy development process. We evaluate our theory by providing evidence of its feasibility with two practical cases: First, we show how the taxonomy helps to analyze existing gamification approaches, and, second, how the taxonomy guides to gamify information systems. Overall, we enrich theory by introducing a new taxonomy to better explain the meaning and characteristics of game design elements. Likewise, practitioners will be guided in selecting and combining game design elements for their gamification approaches.
Laubach, A. ; Dräger, M.: „Brasilien: Neues Datenschutzgesetz“. In: ZD-Aktuell (2018), Nr. 14, p. 06254
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Laser, Stefan:Elektroschrott und die Abwertung von Reparaturpraktiken: Eine soziologische Erkundung des Recyclings von Elektronikgeräten in Indien und Deutschland.. In: Krebs, S. ; Schabacher, G. ; Weber, H. (eds.): Kulturen des Reparierens : transcript, 2018, pp. 85–103
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Li, Mahei Manhai ; Peters, Christoph ; Leimeister, Jan Marco:Dynamic Solutions in Service Systems.. In: AIS SIG SVC Pre-ICIS Workshop (Pre-ICIS), 2018
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With the rapidly increasing number and complexity of service demands, service providers need to become even more flexible and faster. To accommodate this, the service system needs to dynamically reconfigure its required resourced based on the context of both service providers and the customer. The resulting chosen service system configuration is called a dynamic solution. Our research question is therefore as follow: How can we implement the characteristic of dynamic solutions based on the service system model (SSM)? We demonstrate our model using a real-life citizen-based produce delivery service. We contribute by being able to quantify service system configurations and compare different configurations dynamically. Keywords: Service operations, operationalizing
Li, Mahei Manhai:A service system modelling approach.. In: International Conference on Exporing Service Science (IESS), 2018
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Baraki, Harun ; Schwarzbach, Corvin ; Fax, Malte ; Geihs, Kurt: MOCCAA: A Delta-synchronized and Adaptable Mobile Cloud Computing Framework. In: SCITEPRESS (ed.) Proceedings of the 8th International Conference on Cloud Computing and Services Science 2018 (2018), pp. 136–147 — ISBN 978-989-758-295-0
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Mobile Cloud Computing (MCC) requires an infrastructure that is merging the capabilities of resource-constrained but mobile and context-aware devices with that of immovable but powerful resources in the cloud. Application execution shall be boosted and battery consumption reduced. However, a solution's practicability is only ensured, if the provided tools, environment and framework themselves are performant too and if developers are able to adopt, extend and apply it easily. In this light, we introduce our comprehensive and extendable framework MOCCAA (MObile Cloud Computing AdaptAble) and demonstrate its effectiveness. Its performance gain is mainly achieved through minimized monitoring efforts for resource consumption prediction, scalable and location-aware resource discovery and management, and, in particular, through our graph-based delta synchronization of local and remote object states. This allows us to reduce synchronization costs significantly and improve quality dimensions such as latency and bandwidth consumption.
Baraki, Harun ; Schwarzbach, Corvin ; Jakob, Stefan ; Jahl, Alexander ; Geihs, Kurt:SAM: A Semantic-aware Middleware for Mobile Cloud Computing.. In: 2018 IEEE 11th International Conference on Cloud Computing (CLOUD) : IEEE, 2018
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Mobile Cloud Computing (MCC) requires an infrastructure that is combining the capabilities of resource-constrained but mobile and context-aware devices with that of immovable but powerful resources in the cloud. Application execution shall be boosted and battery consumption reduced. Our goal is to relieve mobile devices by enabling applications to cooperate transparently with components provided by third parties remotely, locally, or both. For this purpose, we developed SAM - the Semantic-aware Middleware - and the SAM Store. The latter resembles a registry. It allows component providers to publish semantically enriched interfaces and to offer corresponding local and remote implementations. SAM makes use of the SAM Store to match local interprocess communication (IPC) messages transparently against local and remote components. This architecture facilitates the integration of powerful, but resource-intensive remote components, which may be prioritized over local ones, and fosters various patterns of cooperation that demonstrate useful solutions in the area of MCC. By means of a realistic scenario, our evaluation proves the efficiency with respect to latency and practicality.
Lücking, Phillip ; Lier, Florian ; Bernotat, Jasmin ; Wachsmuth, Sven ; Ŝabanović, Selma ; Eyssel, Friederike:Geographically Distributed Deployment of Reproducible HRI Experiments in an Interdisciplinary Research Context.. In: Companion of the 2018 ACM/IEEE International Conference on Human-Robot Interaction, HRI ’18. Chicago, IL, USA : ACM, 2018 — ISBN 978-1-4503-5615-2, pp. 181–182
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Reproducible experiments are a major requirement for transparent, comparable and verifiable results in the field of human-robot interaction (HRI). Furthermore, a version-controlled and well-structured "ready to deploy" system setup of soft- and hard-ware for an HRI experiment opens up a range of innovative possibilities for interdisciplinary efforts as well as simplified participation of collaborators in the research community. However, making experiments reproducible is not a trivial task. It stems from the lack of agreed upon methodologies, tools and the inherent technical complexity. In this work we present our latest efforts in the context of an international and interdisciplinary research project to enable robotics researchers, software engineers, and social scientists to work together to reproduce a behavioral HRI experiment. The successful reproduction demonstrates that our tool chain approach meets the proposed requirements of the reproducibility problem. To the best of our knowledge, this is the first time an integrated systemic approach allowed an identical instantiation of a complete HRI experiment at geographically distributed locations.
Hofmann, Kai ; Goeble, Thilo ; Lurtz, Helmut ; Wagner, Bernd:Tagungsbericht.. In: Hornung, G. (ed.): Rechtsfragen der Industrie 4.0. Datenhoheit, Verantwortlichkeit, rechtliche Grenzen der Vernetzung. Baden-Baden, Germany : Nomos Verlagsgesellschaft, 2018, pp. 199–212
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Laser, Stefan ; Ochs, Carsten:Kontroversen bewertbar machen. Über die Methode des „Mapping of Controversies“.. In: Kropf, J. ; Laser, S. (eds.): Digitale Bewertungspraktiken. Für eine Bewertungssoziologie des Digitalen. Wiesbaden : Springer, 2018, pp. 97–125
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Lasry, George:A Methodology for the Cryptanalysis of Classical Ciphers with Search Metaheuristics, Kassel University Press : kassel university press, 2018 — ISBN 978-3-7376-0458-1
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Cryptography, the art and science of creating secret codes, and cryptanalysis, the art and science of breaking secret codes, underwent a similar and parallel course during history. Both fields evolved from manual encryption methods and manual codebreaking techniques, to cipher machines and codebreaking machines in the first half of the 20th century, and finally to computerbased encryption and cryptanalysis from the second half of the 20th century. However, despite the advent of modern computing technology, some of the more challenging classical cipher systems and machines have not yet been successfully cryptanalyzed. For others, cryptanalytic methods exist, but only for special and advantageous cases, such as when large amounts of ciphertext are available. Starting from the 1990s, local search metaheuristics such as hill climbing, genetic algorithms, and simulated annealing have been employed, and in some cases, successfully, for the cryptanalysis of several classical ciphers. In most cases, however, results were mixed, and the application of such methods rather limited in their scope and performance. In this work, a robust framework and methodology for the cryptanalysis of classical ciphers using local search metaheuristics, mainly hill climbing and simulated annealing, is described. In an extensive set of case studies conducted as part of this research, this new methodology has been validated and demonstrated as highly effective for the cryptanalysis of several challenging cipher systems and machines, which could not be effectively cryptanalyzed before, and with drastic improvements compared to previously published methods. This work also led to the decipherment of original encrypted messages from WWI, and to the solution, for the first time, of several public cryptographic challenges.
Hornung, Gerrit:Industrie 4.0 und das Recht: Drei zentrale Herausforderungen.. In: Hornung, G. ; Hofmann, K. (eds.): Rechtsfragen der Industrie 4.0. Datenhoheit, Verantwortlichkeit, rechtliche Grenzen der Vernetzung. Baden-Baden, Germany : Nomos Verlagsgesellschaft, 2018, pp. 9–64
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Atzmueller, Martin ; Thiele, Lisa ; Stumme, Gerd ; Kauffeld, Simone:Analyzing Group Interaction on Networks of Face-to-Face Proximity using Wearable Sensors.. In: Proc. IEEE International Conference on Future IoT Technologies. Boston, MA, USA : IEEE Press, 2018
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Johannes, P. C.:Wissenschaft, Forschung und Bildung – Einführung.. In: Döhmann, I. ; Bretthauer, S. (eds.): Dokumentation zum Datenschutz mit Informationsfreiheitsrecht. Baden-Baden : Nomos, 2018
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Jahn, Andreas ; Tomforde, Sven ; Morold, Michel ; David, Klaus ; Sick, Bernhard:Towards Cooperative Self-adapting Activity Recognition.. In: Proceedings of the 8th International Joint Conference on Pervasive and Embedded Computing and Communication Systems, PECCS 2018, Porto, Portugal, July 29-30, 2018., 2018, pp. 215–222
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Jahn, Andreas ; Morold, Michel ; David, Klaus:5G Based Collision Avoidance - Benefit from Unobtrusive Activities.. In: Proceedings of the 2018 European Conference on Networks and Communications (EuCNC). Ljubljana, Slovenia : IEEE, 2018, pp. 352–356
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Every year many vulnerable road users (VRUs), such as pedestrians or bicyclists, are killed or seriously injured in traffic accidents. To reduce the number of such traffic accidents several research groups are working on different solutions. The approach presented in this paper is based on wireless communications such as WLAN and 5G/LTE and a “context filter.” The “context filter” identifies vulnerable road users in potentially dangerous situations based on several inputs (e.g., location, movement direction). An identified dangerous situation is communicated between VRUs and cars using wireless communication. As one interesting context for identifying dangerous situations, this paper investigates how to recognize pedestrians stepping onto the road. Utilizing smartphone sensor data, the investigated approaches address three key challenges: inconsistent sensor data, overrepresentation of periodic activities, as well as the evaluation of the recognition. For each challenge, a possible solution is proposed. The results indicate that recognizing the “stepping onto the road” is possible and support the overall 5G based collision avoidance system.
Hohmann, Carolin ; Miedzianowski, Nadine:Rechte der betroffenen Person.. In: Roßnagel, A. (ed.): Das neue Datenschutzrecht – Europäische Datenschutz-Grundverordnung und deutsche Datenschutzgesetz. Baden-Baden : Nomos, 2018, pp. 125–142
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Li, Mahei Manhai ; Billert, Matthias Simon ; Dellermann, Dominik ; Peters, Christoph ; Leimeister, Jan Marco:Einführung von Crowd-Based Support Dienstleistungen zur Verbesserung der Softwareeinführung.. In: Meyer, K. ; Klingner, S. ; Zinke, C. (eds.): Service Engineering. Wiesbaden, Germany : Springer Fachmedien, 2018 — ISBN 978-3-658-20905-6, pp. 133–149
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Leimeister, Jan Marco ; Schöbel, Sofia ; Lehmann, Katja ; Oeste-Reiß, Sarah ; Söllner, Matthias:StaySmart-Ansatz zum kollaborativen Kompetenzaufbau, -erhalt und -austausch.. In: Ahrens, D. ; Molzberger, G. (eds.): Kompetenzentwicklung in analogen und digitalisierten Arbeitswelten. Gestaltung sozialer, organisationaler und technologischer Innovationen, 2018 — ISBN 978-3-662-54955-1, pp. 89–106
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Lurtz, Helmut: Die Vorkehrungen für die „Abmahnwelle“. In: ZD-Aktuell (2018), p. 06292
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Maier, N.:Stellungnahme im Rahmen der öffentlichen Anhörung von Sachverständigen am 12. April 2018 zum „Gesetz über die Transparenz von Informationen im Freistaat Sachsen“, Gesetzentwurf der Fraktion BÜNDNIS 90/DIE GRÜNEN, APr IA 6/46, 2018
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Schindler, Stephan ; Salzmann, Miriam: Polizeiliche Gesichtserkennung in Deutschland. In: ZD-Aktuell (2018), p. 06344
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Maier, N. ; Ossoinig, V.:Beschäftigtendatenschutz – Einführung –.. In: Döhmann ; Bretthauer (eds.): Dokumentation zum Datenschutz mit Informationsfreiheitsrecht. Baden-Baden, 2018
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Funk, J. ; Eis, A. ; Schmidt, L.:Übersicht zu Lernplattformen für die berufliche Weiterbildung.. In: Gesellschaft für Arbeitswissenschaft e. V. (ed.): ARBEIT(s).WISSEN.SCHAF(f)T - Grundlage für Management & Kompetenzentwicklung: 64. Kongress der Gesellschaft für Arbeitswissenschaft (Frankfurt am Main 2018). Dortmund : GfA-Press, 2018, pp. 1–6 (C.3.5)
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Eine große Anzahl an verfügbaren Lernplattformen und eine stetige Veränderung des Markts durch neue Anbieter erschweren die Auswahl eines geeigneten Systems. Für eine Marktübersicht wurde eine Literatur- und Internetrecherche von verfügbaren Lernplattformen durchgeführt. Die Rechercheergebnisse wurden aussagefähigen Kategorien wie bspw. Administration, Didaktik, Kommunikation oder Technik zugeordnet. Durch die Unterteilung der Lernplattformen in Kategorien lassen sich die Rechercheergebnisse schnell anhand eigener Anforderungen filtern, um geeignete Plattformen für bestimmte Anforderungen zu identifizieren. Die Recherche ergab, dass sich einige Produktmerkmale, bspw. die mobile Zugänglichkeit von E-Learning-Material, als Basiseigenschaften etabliert haben, wohingegen VR-/AR-Technologien bisher nicht berücksichtigt werden.
Roßnagel, Alexander ; Bile, Tamer ; Geminn, Christian ; Johannes, Paul C. ; Karaboga, Murat ; Krämer, Nicole ; Maier, Natalie ; Martin, Nicholas ; et al.:„Datenschutz stärken, Innovationen ermöglichen – Wie man den Koalitionsvertrag ausgestalten sollte“. Karlsruhe : Fraunhofer ISI, 2018
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Roßnagel, Alexander ; Bile, Tamer ; Geminn, Christian ; Heesen, Jessica ; Karaboga, Murat ; Krämer, Nicole ; Kreutzer, Michael ; Löber, Lena ; et al.:„Das Netzwerkdurchsetzungsgesetz“. Karlsruhe : Fraunhofer ISI, 2018
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Roßnagel, Alexander ; Bile, Tamer ; Friedewald, Michael ; Geminn, Christian ; Grigorjew, Olga ; Karaboga, Murat ; Nebel, Maxi:„National Implementation of the GDPR: Challenges, Approaches, Strategies“. Karlsruhe : Fraunhofer ISI, 2018
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Roßnagel, Alexander ; Bile, Tamer ; Friedewald, M ; Geminn, Christian ; Karaboga, M ; Nebel, Maxi ; ISI, F. (ed.):National Implementation of the GDPR: Challenges – Approaches – Strategies. Policy Paper. Schriftenreihe Forum Privatheit und selbstbestimmtes Leben in der digitalen Welt. Karlsruhe, 2018
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Roßnagel, Alexander ; Bile, Tamer ; Friedewald, M ; Geminn, Christian ; Karaboga, M ; Nebel, Maxi ; ISI, K. F. (ed.):Nationale Implementierung der DSGVO: Herausforderungen – Ansätze – Strategien. Policy Paper. Schriftenreihe Forum Privatheit und selbstbestimmtes Leben in der digitalen Welt. Karlsruhe, 2018
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Ochs, Carsten ; Büttner, Barbara:Das Internet als ’Sauerstoff’ und ’Bedrohung’: Privatheitspraktiken zwischen analoger und digital-vernetzter Subjektivierung.. In: Friedewald, M. (ed.): Privatheit und selbstbestimmtes Leben in der digitalen Welt. Interdisziplinäre Perspektiven auf aktuelle Herausforderungen des Datenschutzes. Wiesbaden : Springer, 2018, pp. 33–80
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Roßnagel, Alexander ; Bile, Tamer ; Friedewald, M ; Geminn, Christian ; Heesen, J ; Karaboga, M ; Krämer, N ; Kreutzer, M ; et al. ; ISI, F. (ed.):Das Netzwerkdurchsetzungsgesetz. Policy Paper. Schriftenreihe Forum Privatheit und selbstbestimmtes Leben in der digitalen Welt. Karlsruhe, 2018
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Oeste-Reiß, Sarah:Leveraging the Potentials of Peer Learning – Conceptual Foundations and Reference Processes for Peer Learning. vol. Research on IT / Service/ Innovation / Collaboration. Kassel, Germany : Kassel University Press, 2018
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Roßnagel, Alexander: Datenschutz in der Forschung. In: ZD vol. 5 (2018)
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Klose, E. M. ; Schmidt, L.:A User-based Comparison of Two Augmented Reality Glasses.. In: Kiyokawa, K. ; Steinicke, F. ; Thomas, B. ; Welch, G. (eds.): 25th IEEE Conference on Virtual Reality and 3D User Interfaces (Reutlingen 2018). Piscataway : IEEE, 2018, pp. 603–604
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We present a scenario-based laboratory study with 40 participants comparing two augmented reality (AR) glasses in a travelling scenario. In a within-subject design, the binocular Epson Moverio BT-200 and the monocular Vuzix M100 were compared with regard to performance, acceptance, workload and preference. While performance was equal with both glasses, the Epson Moverio BT-200 glasses got higher acceptance and lower workload ratings and were preferred by the majority of the participants. The findings provide knowledge on human factors in AR glasses usage.
Funk, J. ; Klose, E. M. ; Schmidt, L.:Blickbewegungsstudie zu Orientierung und Informationsbedarf beim Verkehrsmittelwechsel am Frankfurter Flughafen.. In: Gesellschaft für Arbeitswissenschaft e. V. (ed.): ARBEIT(s).WISSEN.SCHAF(f)T - Grundlage für Management & Kompetenzentwicklung: 64. Kongress der Gesellschaft für Arbeitswissenschaft (Frankfurt am Main 2018). Dortmund : GfA-Press, 2018, pp. 1–6 (B.1.2)
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Die vorliegende Studie untersucht, woran sich Menschen an komplexen Verkehrsknotenpunkten orientieren und welche Probleme hierbei auftreten. Dafür wurden die Blickbewegung gemessen und die Schritte gezählt, während die zwölf Teilnehmer drei Navigationsaufgaben durch den Frankfurter Flughafen absolvierten. Anschließend wurde die Retrospektive Think-Aloud-Methode genutzt, um einen Einblick in Gedanken und Strategien der Probanden zu bekommen. So konnten Problemstellen, wie z. B. die Suche auf Übersichtsplänen oder das Bestimmen der derzeitigen Etage, identifiziert werden, aus denen Gestaltungsempfehlungen für eine Fußgängernavigation mit Datenbrillen abgeleitet werden.
Friedrichs, Juliane ; Ohly, Sandra ; Duranova, Lenka:Schwimmen oder Untergehen - Informationsüberflutung durch E-Mails im Arbeitsalltag.. In: Presentation at the 51. Kongress der Deutschen Gesellschaft für Psychologie (DGPs) in Frankfurt, 2018, p. 52
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Breker, Sebastian ; Rentmeister, Jan ; Sick, Bernhard ; Braun, Martin: Hosting capacity of low-voltage grids for distributed generation: Classification by means of machine learning techniques. In: Appl. Soft Comput. vol. 70 (2018), pp. 195–207
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Klumbytė, Goda:Extended Cognition.. In: Braidotti, R. ; Hlavajova, M. (eds.): Posthuman Glossary. London : Bloomsbury Academic, 2018, pp. 148–150
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Roßnagel, Alexander ; Nomos-Verlag (ed.):Das neue Datenschutzrecht. vol. Europäische Datenschutz-Grundverordnung und deutsche Datenschutzgesetze, 2018
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Ohly, Sandra: Promoting Creativity at Work - Implications for Scientific Creativity. In: European Review vol. 26 (2018), Nr. S1, pp. 91–99
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Creativity is the generation of novel and useful ideas. Organizations, including universities and other research institutions, need to develop novel and useful products to satisfy constantly evolving customer needs. Furthermore, organizational procedures and processes develop over time, and continuous improvements in processes contribute to organizational efficiency. Thus, the development of novel and useful ideas in relation to products, procedures and services is mandated from many employees in modern organizations, including researchers and scientists. This creativity can take on many different forms, for example unconventional solutions to a wide variety of problems related to research, teaching and administration. Because many of these problems are comparable to that of workers in all kinds of jobs, I believe it is possible to draw on the rich knowledge in the field of organizational creativity to provide some insights into how to foster scientific creativity. The work of researchers and scientists is in many ways comparable to that of knowledge workers in other kinds of organizations: they are high-level employees who apply knowledge to do their work, oftentimes using creative thinking. A rich body of literature has dealt with creativity in these jobs where creativity is a core requirement, and has examined the organizational factors related to creativity. Before I summarize this research and highlight some important research findings concerning the rewards for creativity, the design of jobs, the processes leading to creativity, the organizational climate, and daily work events associated with creativity, I will disentangle different forms of creativity at work and describe a general model of creativity in the context of work.
Ohly, Sandra:Energy and Thriving. Professional Development Workshop on Energy.. In: Academy of Management Meeting. Chicago, 2018
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Roßnagel, Alexander:Notwendige Schritte zu einem modernen Datenschutzrecht.. In: Roßnagel, A. ; Hansen, M. ; Friedewald, M. (eds.): Die Fortentwicklung des Datenschutzes.. Wiesbaden, Germany : Springer Vieweg, 2018, pp. 361–386
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Anderson, Christoph ; Hübener, Isabel ; Seipp, Ann-Kathrin ; Ohly, Sandra ; David, Klaus ; Pejovic, Veljko: A Survey of Attention Management Systems in Ubiquitous Computing Environments. In: Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies vol. 2. New York, NY, USA, ACM (2018), Nr. 2, pp. 1–27
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Ernst, Sissy-Josefina ; Janson, Andreas ; Söllner, Matthias ; Leimeister, Jan Marco:Mobiles Lernen in praktischen Trainings - Lernzielerreichung vor dem Hintergrund von Motivation und Akzeptanz der Zielgruppe.. In: . Wiesbaden, Germany : Springer VS, 2018 — ISBN 978-3-658-19122-1
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Lehr-Lernkontexte werden zunehmend durch den allgegenwärtigen Einsatz mobiler Endgeräte geprägt. Durch mobiles Lernen besteht die Möglichkeit, auch bei einer hohen Anzahl an Lernenden, die Wissensaneignung in praktischen Trainings zu unterstützen. Für die Gestaltung von mobilen Lehr-Lernszenarien ist die explizite Berücksichtigung des Lehr-Lernkontextes, den entsprechenden Lernzielen sowie des Lernenden selbst von grundlegender Bedeutung. Lernziele können unter Zuhilfenahme der Lernzieltaxonomie hinsichtlich Komplexität und Schwierigkeit eingeordnet und in Bezug zum Lehr-Lernkontext gesetzt werden. Darüber hinaus ist der Lernende selbst eine wichtige Determinante, welche es bei der Ausgestaltung mobiler Lernanwendungen zu berücksichtigen gilt. In diesem Zusammenhang sind sowohl Faktoren der Technologieakzeptanz als auch die Motivation zur Nutzung einer mobilen Lernanwendung zu nennen, welche den Erfolg von mobilen Lernanwendungen maßgeblich beeinflussen können. Aufbauend auf einem theoretischen Grundgerüst wird im Beitrag die Umsetzung von Lernzielen im mobilen Lernen aufgezeigt sowie Akzeptanz und Motivationskomponenten von mobilem Lernen vor dem Hintergrund bestehender Literatur erläutert. Anhand eines Praxisbeispiels wird aufgezeigt, wie mobile Lehr-Lernszenarien und entsprechende mobile Lernanwendungen vor dem Hintergrund des Lehr-Lernkontextes, der Motivation und der Akzeptanz gestaltet werden können. Speziell wird darauf eingegangen, wie durch eine zielgruppen- und kontextspezifische Entwicklung die Akzeptanz des mobilen Lernens gesteigert wird.
Söllner, Matthias:Designing Digital Innovations in Learning. St.Gallen, 2018
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Opfer, Stephan ; Jakob, Stefan ; Geihs, Kurt:Reasoning for Autonomous Agents in Dynamic Domains: Towards Automatic Satisfaction of the Module Property.. In: Agents and Artificial Intelligence. vol. 1 : Springer International Publishing, 2018 — ISBN 978-3-319-93581-2, pp. 22–47
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Roßnagel, A. ; Hornung, G. ; Geminn, C. ; Johannes, P. C. (eds.):Rechtsverträgliche Technikgestaltung und technikadäquate Rechtsentwicklung – 30 Jahre Projektgruppe verfassungsverträgliche Technikgestaltung. Kassel, Germany : kassel university press, 2018
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Kropf, Jonathan:Recommender Systems in der populären Musik. Kritik und Gestaltungsoptionen.. In: Kropf, J. ; Laser, S. (eds.): Für eine Bewertungssoziologie des Digitalen. Wiesbaden : Springer, 2018
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Klose, E. ; Eis, A. ; Hegenberg, J. ; Schmidt, L.: Nutzerorientierte Anforderungsanalyse für ein adaptiv lernendes Reiseassistenzsystem mit Datenbrillen. In: Zeitschrift für Arbeitswissenschaft vol. 72 (2018), Nr. 1, pp. 3–12
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Für die Entwicklung eines persönlichen, adaptiv lernenden Reiseassistenzsystems für den öffentlichen Verkehr auf Basis von Augmented Reality wurde in der Anforderungsanalyse ein Mixed-Methods-Ansatz mit Fokusgruppen (n = 40) und einer Online-Befragung (n = 311) gewählt. Die Ergebnisse zeigen, dass ein Großteil der Nutzer sich vorstellen kann, ein Reiseassistenzsystem zu nutzen, viele bei der Verwendung von Datenbrillen und Sprachinteraktion im öffentlichen Raum jedoch Bedenken haben. Als wichtigste Funktionen eines Reiseassistenzsystems werden die Unterstützung im Störungsfall, die Fußgängernavigation sowie die Versorgung mit Informationen zur Reisekette angesehen. Basierend auf den erhobenen Daten wurden Personas und Szenarien entworfen. Diese Werkzeuge ermöglichen es, dass sich die an der Entwicklung beteiligten Personen besser in den zukünftigen Nutzer des Reiseassistenzsystems sowie in den Nutzungskontext hineinversetzen und Gestaltungslösungen aus Nutzersicht beurteilt werden können. Praktische Relevanz: Intermodale Mobilitätsketten sowie die zunehmende Komplexität von Verkehrsknotenpunkten stellen Reisende vor die Herausforderung, unter Zeitdruck herauszufiltern, welche aus der Fülle der zur Verfügung stehenden Informationen für sie in der aktuellen Situation relevant sind. Dieser Beitrag analysiert, welche Informationen Reisende wann benötigen, mit dem Ziel, die Entwicklung von Assistenzsystemen zu unterstützen, die Informationen situations- und nutzergerecht zur Verfügung stellen und so die Beanspruchung beim Reisen reduzieren.
Klesel, Michael ; Kampling, Henrik ; Bretschneider, Ulrich ; Niehaves, Björn: Does the Ability to Choose Matter? On the Relationship between Bring-your-own Behavior and IT Satisfaction. In: Communications of the Association for Information Systems vol. 43 (2018), Nr. 36, pp. 690–710
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Employees increasingly complete organizational tasks using privately owned consumer technologies such as private devices (e.g., smartphones) or private Internet accounts (e.g., email accounts). Higher satisfaction constitutes a major reason for this bring-your-own behavior (BYOB). However, little research has theoretically explored and empirically tested this assumption. This study sheds light on this phenomenon by analyzing the effect of BYOB on IT satisfaction. Drawing from social cognitive theory, we propose choice self-efficacy as a new construct that intermediates the relationship between BYOB and IT satisfaction. Building on results from survey data (n = 400), we provide new evidence that BYOB has a positive effect on IT satisfaction whereby choice self-efficacy plays a vital element as it mediates this relationship. Since IT satisfaction shapes how people use technology and how they perform with it, we derive important implications for future research on IT consumerization. Furthermore, we provide several conclusions for practitioners and discuss how to enhance IT satisfaction and choice self-efficacy.
Roßnagel, A. ; Bile, T. ; Geminn, C. ; Grigorjew, O. ; Johannes, P. C. ; Karaboga, M. ; Krämer, N. ; Maier, N. ; et al.:Datenschutz stärken, Innovationen ermöglichen - Wie man den Koalitionsvertrag ausgestalten sollte, Policy Paper des Forum Privatheit. Karlsruhe, 2018
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Geminn, C. ; Richter, P.:Telemedien.. In: Roßnagel, A. (ed.): Das neue Datenschutzrecht – Europäische Datenschutz-Grundverordnung und deutsche Datenschutzgesetze. Baden-Baden : Nomos Praxis, 2018, pp. 362–373
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Roßnagel, Alexander ; Hornung, Gerrit: Die DS-GVO in den Startlöchern: Anfangszauber oder Reise ins Ungewisse? Editorial. In: Multimedia und Recht (2018), pp. 197–198
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Roßnagel, Alexander ; Hofmann, Johanna:- Rechtliche Anforderungen an Zertifizierungen nach der Datenschutz-Grundverordnung.. In: Krcmar, H. ; Eckert, C. ; Roßnagel, A. ; Sunyaev, A. ; Wiesche, M. (eds.): Management sicherer Cloud-Services, 2018 — ISBN 978-3-658-19579-3, pp. 101–112
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Nguyen Van, Thao ; Fredivianus, Nugroho ; Tran, Tam Huu ; Geihs, Kurt ; Binh Huynh, Thanh Thi:Formal Verification of ALICA Multi-agent Plans Using Model Checking.. In: Proceedings of the Ninth International Symposium on Information and Communication Technology. Danang City, Viet Nam, 2018
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Simmert, Benedikt ; Ebel, Philipp Alexander ; Peters, Christoph ; Bittner, Eva Alice Christiane ; Leimeister, Jan Marco: Conquering the Challenge of Continuous Business Model Improvement Design of a Repeatable Process. In: Business & Information Systems Engineering (BISE) vol. 61, Springer Fachmedien Wiesbaden GmbH (2018), Nr. 4, pp. 451–468
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Geminn, Christian: „Das Europäische Datenschutzrecht – Zwischen Leuchtturmfunktion und Werteexport?“. In: Verwaltungsblatt, Deutsches (2018), Nr. 24
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Geminn, Christian: „Wissenschaftliche Forschung und Datenschutz – Neuerungen durch die Datenschutz-Grundverordnung“. In: Datenschutz und Datensicherheit (2018), Nr. 10
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Geminn, Christian: „Laura Schulte, Vom quantitativen zum qualitativen Datenschutz. Leitbildwandel im Datenschutzrecht, Duncker & Humblot 2018“. In: Schulte, L. (ed.) Zeitschrift für Datenschutz vol. 9 (2018), Nr. 8
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Roßnagel, A. ; Hansen, M. ; Friedewald, M. (eds.):Die Fortentwicklung des Datenschutzes. Zwischen Systemgestaltung und Selbstregulierung.. Wiesbaden, Germany : Springer Vieweg, 2018
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Geminn, Christian:„Rechtsschutz für Betroffene“.. In: Jandt, S. ; Steidle, R. (eds.): „Datenschutz im Internet – Rechtshandbuch zu DSGVO und BDSG“. Baden-Baden : Nomos, 2018, pp. 458–489
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Geminn, Christian: „Was wird aus der Vorratsdatenspeicherung?“. In: Neue Juristische Wochenschrift vol. 34 (2018), Nr. 71, p. 14
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Geminn, Christian:„The New Federal Data Protection Act – Implementation of the GDPR in Germany“ : Blog Droit Européen, 2018
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Geminn, C. ; Johannes, P. C.: 30 Jahre provet e.V. und 20 Jahre provet an der Universität Kassel – Forschung und Methoden zur rechtsverträglichen Technikgestaltung und technikadäquaten Rechtsentwicklung. In: ZD-Aktuell (2018), Nr. 18, p. 06346
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Ochs, Carsten: Das Wissen der Netzwerk-Gesellschaft: Noortje Marres erörtert Aufgaben und Probleme einer Digitalen Soziologie [Rezension von Noortje Marres (2017): Digital Sociology: The Reinvention of Social Research. In: Soziopolis (2018)
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Kropf, Jonathan ; Laser, Stefan:Für eine reflexive Vergleichspraxis in der Bewertungssoziologie. Pinterest und WhatsApp als Beispiel.. In: Kropf, J. ; Laser, S. (eds.): Digitale Bewertungspraktiken. Für eine Bewertungssoziologie des Digitalen. Wiesbaden : Springer, 2018, pp. 19–40
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Kleinschmidt, Stefan ; Ebel, Philipp ; Peters, Christoph ; Leimeister, Jan Marco:Erstellung neuer Geschäftsmodelle für IKT-basierte, personenbezogene Dienstleistungssysteme.. In: Bruhn, M. ; Hadwich, K. (eds.): Service Business Development: Strategien – Innovationen – Geschäftsmodelle. vol. 1. Wiesbaden, Germany : Springer Nature, 2018 — ISBN 9783658224257, pp. 379–402
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Geihs, Kurt ; Witsch, Andreas: Decentralized decision making in adaptive multi-robot teams. In: it - Information Technology vol. 60 (2018), Nr. 4, pp. 239–248
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Braukmann, Johanna ; Schmitt, Antje ; Ďuranová, Lenka ; Ohly, Sandra: Identifying ICT-Related Affective Events Across Life Domains and Examining their Unique Relationships with Employee Recovery. In: Journal of Business and Psychology vol. 33 (2018), Nr. 4, pp. 529–544
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The purpose of this study was to investigate the role of information and communication technology (ICT) use for employees by exploring affective ICT events and their relation to employee recovery. We conducted two daily diary studies with knowledge workers in Germany. In study 1 (N = 153), we followed a qualitative approach by developing a taxonomy of negative and positive ICT events at work and at home. We found 11 negative (e.g., multichannel use, work e-mails in the evening) and 10 positive ICT event clusters (e.g., utilizing idle times, availability at home). In study 2 (N = 154), we examined how the occurrence of ICT-related events in the evening is related to detachment from work and sleep quality using a multilevel design. Study 2 provided a differentiated picture of relationships between evening ICT events and recovery. Overall, results indicate that work-related ICT events in the evening—even in cases where they are appraised as positive—are detrimental for employee recovery. Our study contributes to the refinement of the operationalization of ICT use for future analyses of ICT impacts and sheds light on the differential effects of specific types of ICT events. ICT use conceptualized as the occurrence of affective events helps to advance our understanding of the diversity of ICT-related experiences. The negative effects of handling work e-mails at home imply that organizations should engage in optimizing their “e-mail culture.”
Digitale Bewertungspraktiken. Für eine Bewertungssoziologie des Digitalen.. In: Kropf, J. ; Laser, S. (eds.): . Wiesbaden : VS, 2018
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Löber, Lena: Das Netzwerkdurchsetzungsgesetz in der Umsetzung. Bilanz nach den ersten Transparenzberichten. In: Roßnagel, A. (ed.) Multimedia und Recht (2018), Nr. 1, pp. 71–76
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Ochs, Carsten:Self-protection beyond the self: collective privacy practices in (Big) datascapes.. In: Rudinow Sætnan, A. ; Schneider, I. ; Green, N. (eds.): The Politics of Big Data - Big Data, Big Brother?. London : Routledge, 2018, pp. 265–291
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Braun, S.: Datenschutz im Smart Office. In: ZD (2018), Nr. 2, pp. 71–76
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Braun, S.: Überwachung am Arbeitsplatz – Amazon patentiert neues Wearable. In: ZD-Aktuell (2018), Nr. 4, p. 06008
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Braun, S.: GeopNu: Zwischenstand des Projekts. In: ZD-Aktuell (2018), Nr. 16, p. 06294
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Braun, S. ; Henzler, T. ; Berg, A.: Nutzeridentifikation mit mobilen Endgeräten, Datenschutz und Datensicherheit. In: DuD vol. 42 (2018), Nr. 11, pp. 673–679
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Buholzer, Fabienne ; Rietsche, Roman ; Söllner, Matthias:Knowing what Learners Like – Developing a Cultural Sensitive Peer Assessment Process in MOOCs.. In: Multikonferenz Wirtschaftsinformatik (MKWI), 2018
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MOOCs attract learners from various cultural backgrounds with differing educational beliefs and learning preferences. Research has long acknowledged that culture has an impact on the adoption and use of information technology. Cultural differences can cause conflicts, especially when learners provide each other with feedback during the peer assessment process. With this paper, we use a design science approach to create a cultural sensitive peer assessment process in MOOCs. Based on Hofstede’s cultural dimension theory we derive design elements and evaluate them in a qualitative and comparative study with Swiss and Chinese students. Our results show that different cultures prefer different designs. Consequently, our key contribution is the practical elaboration of design elements, which can be integrated in MOOCs to provide a better learning experience. Further, we contribute to cross-cultural theory by using an existing framework and adapting it to a new and relevant phenomenon: MOOCs.
Roßnagel, A. ; Bile, T ; Friedewald, M ; Geminn, C. ; Grigorjew, O. ; Karaboga, M. ; M., Nebel.:Nationale Implementierung der DSGVO: Herausforderungen – Ansätze – Strategien. Policy Paper des Forum Privatheit. Karlsruhe, 2018
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Neumann, N. ; Meyer zu Borgsen, S. ; Lücking, P. ; Wachsmuth, S.:An automated pick-and-place benchmarking system in robotics.. In: 2018 IEEE International Conference on Autonomous Robot Systems and Competitions (ICARSC), 2018, pp. 243–249
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The reproducibility and objective assessment of a robot's manipulation ability is a crucial topic in robotics. The definition of testing protocols and the automation of such test procedures is challenging. Most evaluation protocols in benchmarks and competitions include not completely standardized interactions of a human/referee and are furthermore influenced by partially subjective criteria across different research areas. A promising and more objective solution is to automate benchmarking protocols for a range of reproducible manipulation tasks. We present an approach that is simplified to the essential elements, in which most of the process and evaluation is automated. The proposed system has low price and effort requirements and allows researchers to compare their robots without placing them side by side. To allow a wide range of robots to be benchmarked all parts will be available open source. In our system, an object is positioned in front of the benchmarked robot by a mobile minirobot that localizes itself on a table according to the individual task's predefined positions. By automating most of the process we ensure that the object locations tested as well as the timings are reproducible and well documented. This approach fosters the objective comparability of robot performances.
Knote, Robin ; Söllner, Matthias ; Leimeister, Jan Marco:Towards a Pattern Language for Smart Personal Assistants.. In: Conference on Pattern Languages of Programs (PLoP), 2018
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Supporting users in their daily activities, thus, making their lives more comfortable, has long been a goal for consumer-oriented systems development. With the rise of smart personal assistants (SPAs), however, we have reached a new milestone along the path towards this goal. These systems assist their owners by providing personalized and context-dependent information and service. Today's implementations reach from conversational agents, such as Siri, Cortana or Google Assistant, over chatbots, which are primarily text-based, to cognitive assistants, which assist according to a user's current cognitive or emotional state. However, although both research and practice proceed with full pace, recurring design elements of SPAs have not yet been investigated. We hence propose a pattern language for smart personal assistants to guide further empirical and design efforts. Therefore, we review existing information systems, computer science and human-computer interaction literature to find recurring design characteristics among 115 different assistants. The resulting pattern language contains 22 patterns that specify the interaction behavior and the intelligence of smart personal assistants.
Draude, Claude ; Klumbyte, Goda ; Treusch, Pat:Re-Considering Bias: What Could Bringing Gender Studies and Computing Together Teach Us About Bias in Information Systems?. In: Bates, J. ; Clough, P. D. ; Jäschke, R. ; Otterbacher, J. (eds.): Proceedings of International Workshop on Bias in Information, Algorithms, and Systems co-located with 13th International Conference on Transforming Digital Worlds (iConference 2018) : CEUR Workshop Proceedings, 2018
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Draude, Claude ; Klumbyte, Goda:Acceptability by Design: Integrating Gender Research in HCI.. In: Koelle, M. ; Proﬁta, H. ; Olsson, T. ; Mitchell, R. ; Williamson, J. ; Kane, S. ; Boll, S. (eds.): Proceedings of CHI’18 Workshop on (Un)Acceptable!?! – Re-thinking the Social Acceptability of Emerging Technologies, 2018
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Rietsche, Roman ; Duss, Kevin ; Persch, Jan Martin ; Söllner, Matthias:Design and Evaluation of an IT-based Formative Feedback Tool to Foster Student Performance.. In: International Conference on Information Systems (ICIS), 2018
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Today’s world is changing faster than ever before. Students need to constantly acquire new knowledge and the required skills shift more and more to higher order thinking skills. One major approach to support the students in this shift is through formative feedback, which initiates self-regulated learning processes. However, given the constant rise of student numbers while public spending remains constant, one of the major challenges is how to effectively provide formative feedback in large-scale lectures. The aim of our project is to develop an IT-tool which provides students with formative feedback to increase their performance in large-scale lectures. Our results show that through the use of the IT-tool the objective and perceived student performance can be significantly increased. By documenting our design knowledge according to the eight components of Gregor and Jones (2007), we take a first step towards creating a design theory for formative feedback tools.
Quinn, R. ; Baur, A. ; Bile, Tamer ; Nebel, Maxi ; Bremert, B. ; Büttner, B. ; Grigorjew, Olga ; Hagendorff, T. ; et al.:Forum Privatheit (Hrsg.), Tracking – Beschreibung und Bewertung neuer Methoden. Karlsruhe : Frauenhofer ISI, 2018
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Kottke, Daniel ; Calma, Adrian ; Huseljic, Denis ; Sandrock, Christoph ; Kachergis, George ; Sick, Bernhard:The Other Human in The Loop -- A Pilot Study to Find Selection Strategies for Active Learning.. In: International Joint Conference on Neural Networks. Rio de Janiero, Brazil, 2018
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Knote, Robin ; Janson, Andreas ; Eigenbrod, Laura ; Söllner, Matthias:The What and How of Smart Personal Assistants: Principles and Application Domains for IS Research.. In: Multikonferenz Wirtschaftsinformatik (MKWI), 2018
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Digitization brings new possibilities to ease our daily life activities by the means of assistive technology. Amazon Alexa, Microsoft Cortana, Samsung Bixby, to name only a few, heralded the age of smart personal assistants (SPAs), personified agents that combine artificial intelligence, machine learning, natural language processing and various actuation mechanisms to sense and influence the environment. However, SPA research seems to be highly fragmented among different disciplines, such as computer science, human-computer-interaction and information systems, which leads to ‘reinventing the wheel approaches’ and thus impede progress and conceptual clarity. In this paper, we present an exhaustive, integrative literature review to build a solid basis for future research. We have identified five functional principles and three research domains which appear promising for future research, especially in the information systems field. Hence, we contribute by providing a consolidated, integrated view on prior research and lay the foundation for an SPA classification scheme.
Domhardt, M.:Gestaltungsempfehlungen für touchscreenbasierte Benutzungsschnittstellen. Kassel : Kassel University Press, 2018
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Bisher erfolgt die Gestaltung von Touchscreensystemen nach Kriterien für ergonomische Eingabemittel oder der Softwareergonomie. Der allgemeine Charakter dieser Empfehlungen deckt nicht touchscreenspezifische Besonderheiten ab. Hersteller- und softwarespezifische Design Guides enthalten keine Hinweise zur Berücksichtigung der technologiebedingten Interaktionsmöglichkeiten und -einschränkungen der verschiedenen technischen Komponenten eines Touchscreensystems. Bisher existiert kein Gestaltungsansatz, der die touchscreenspezifischen Besonderheiten systematisch berücksichtigt. Die technologischen Möglichkeiten von Touchscreensystemen sowie die die Gefahr einer physischen Überbeanspruchung des belasteten Bewegungsapparates werden dadurch bei der Systemgestaltung nur unzureichend berücksichtigt. Im Rahmen dieser Arbeit wurde daher das Ziel verfolgt, einen ganzheitlichen Gestaltungsansatz zu erarbeiten, der die Besonderheiten der Touchscreentechnologien und -interaktion durch spezifische Gestaltungsempfehlungen berücksichtigt. Als Lösungsansatz wurde die Erweiterung bestehender Modelle um die Besonderheiten touchscreenbasierter Systeme verfolgt. Im ersten Schritt erfolgte die systematische Auswahl eines Modells eines interaktiven Systems als geeignetes Basismodell für Touchscreensysteme. Anschließend wurde dieses Modell um die charakteristischen Bestandteile eines Touchscreensystems erweitert. Anhand dieses Modells wurden Wissenslücken in den theoretischen Grundlagen identifiziert und daraus sechs Forschungsfragen abgeleitet. Um die Fragen systematisch zu beantworten, wurden Literaturanalysen und empirische Studien konzipiert, durchgeführt und ausgewertet. Die theoretischen Grundlagen wurden mit den erarbeiteten Ergebnissen der Analysen und empirischen Studien zusammengeführt und als Basis für die Formulierung touchscreenspezifischer Gestaltungsempfehlungen genutzt. Diese Empfehlungen wurden anschließend im Basismodell verankert, um so einen ganzheitlichen Gestaltungsansatz für Touchscreensysteme zu erhalten. Für die praktikable Anwendung des Ansatzes wurde dieser in den menschzentrierten Gestaltungsprozess integriert. Die Anwendbarkeit konnte anhand eines Praxisbeispiels erfolgreich demonstriert werden. Die Ergebnisse dieser Arbeit erleichtern die Gestaltung touchscreenbasierter Systeme im Rahmen des menschzentrierten Gestaltungsprozesses. Auch eine formative analytische Evaluierung entsprechender Systeme kann durch die erarbeiteten touchscreenspezifischen Gestaltungsempfehlungen vereinfacht werden, indem diese als Konformitätskriterien verwendet werden.
Dankwa, Nana Kesewaa: Driving smart home innovation with the gender dimension. In: Feminist Voices in Technology vol. 1 (2018), Nr. ISS001, pp. 9–10
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Doerfel, Stephan ; Hanika, Tom ; Stumme, Gerd:Clones in Graphs.. In: Ceci, M. ; Japkowicz, N. ; Liu, J. ; Papadopoulos, G. A. ; Ras, Z. W. (eds.): ISMIS, Lecture Notes in Computer Science. vol. 11177 : Springer, 2018 — ISBN 978-3-030-01851-1, pp. 56–66
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Doerfel, Stephan ; Hanika, Tom ; Stumme, Gerd: Clones in Social Networks. In: CoRR vol. abs/1802.07849 (2018). — cite arxiv:1802.07849Comment: 12 pages, 2 figures, 2 tables
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It is well known that any bipartite (social) network can be regarded as a formal context $$(G,M,I)$$. Therefore, such networks give raise to formal concept lattices which can be investigated utilizing the toolset of Formal Concept Analysis (FCA). In particular, the notion of clones in closure systems on $$M$$, i.e., pairwise interchangeable attributes that leave the closure system unchanged, suggests itself naturally as a candidate to be analyzed in the realm of FCA based social network analysis. In this study, we investigate the notion of clones in social networks. After building up some theoretical background for the clone relation in formal contexts we try to find clones in real word data sets. To this end, we provide an experimental evaluation on nine mostly well known social networks and provide some first insights on the impact of clones. We conclude our work by nourishing the understanding of clones by generalizing those to permutations of higher order.
Söllner, Matthias ; Bitzer, Philipp ; Janson, Andreas ; Leimeister, Jan Marco: Process is king: Evaluating the performance of technology-mediated learning in vocational software training. In: Journal of Information Technology (JIT) vol. 33 (2018), Nr. 3, pp. 233–253
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Technology-mediated learning (TML) is a major trend in education, since it allows to integrate the strengths of traditional- and IT-based learning activities. However, TML providers still struggle in identifying areas for improvement in their TML offerings. One reason for their struggles is inconsistencies in the literature regarding drivers of TML performance. Prior research suggests that these inconsistencies in TML literature might stem from neglecting the importance of considering the process perspective in addition to the input and outcome perspectives. This gap needs to be addressed to better understand the different drivers of the performance of TML scenarios. Filling this gap would further support TML providers with more precise guidance on how to (re-)design their offerings toward their customers’ needs. To achieve our goal, we combine qualitative and quantitative methods to develop and evaluate a holistic model for assessing TML performance. In particular, we consolidate the body of literature, followed by a focus group workshop and a Q-sorting exercise with TML practitioners, and an empirical pre-study to develop and initially test our research model. Afterward, we collect data from 161 participants of TML vocational software trainings and evaluate our holistic model for assessing TML performance. The results provide empirical evidence for the importance of the TML process quality dimension as suggested in prior literature and highlighted by our TML practitioners. Our main theoretical as well as practical contribution is a holistic model that provides comprehensive insights into which constructs and facets shape the performance of TML in vocational software trainings.
David, Klaus ; Berndt, Hendrik: 6G Vision and Requirements: Is There Any Need for Beyond 5G?. In: IEEE Vehicular Technology Magazine vol. 13 (2018), Nr. 3, pp. 72–80
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To address the question in the subtitle of this article, we start by discussing earlier mobile communication systems, beginning with the first analog wireless cellular standards, then moving on to second generation (2G) [or Global System for Mobile Communications (GSM)], passing third generation (3G) and fourth generation (4G), and proceeding to fifth generation (5G). First, we present each generation's key achievements in terms of user services, each generation's technologyrelated factors of success (called innovations) as well as its relation to regulation, and each generation's potential deficiencies.
Prem, Roman ; Ohly, Sandra ; Kubicek, Bettina ; Korunka, Christian: Corrigendum: Thriving on challenge stressors? Exploring time pressure and learning demands as antecedents of thriving at work. In: Journal of Organizational Behavior, 1. vol. 39 (2018), pp. 129–129
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Reitberger, G. ; Zernetsch, S. ; Bieshaar, M. ; Sick, B. ; Doll, K. ; Fuchs, E.:Cooperative Tracking of Cyclists Based on Smart Devices and Infrastructure.. In: ITSC. Maui, HI, 2018
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Deist, S. ; Bieshaar, M. ; Schreiber, J. ; Gensler, A. ; Sick, B.:Coopetitive Soft Gating Ensemble.. In: Workshop on Self-Improving System Integration (SISSY). Trento, Italy, 2018
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Dellermann, Dominik:Accelerating Decisional Guidance in Entrepreneurship with Hybrid Intelligence.. In: International Conference on Information Systems (ICIS), 2018
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Decision making in the context of entrepreneurship is a highly complex task. For dealing with such uncertain problems, decisional guidance proved to be a valuable approach to support entrepreneurs in making decisions. Mentoring and feedback from human experts and simple statistical methods emerge as dominant forms of providing decisional guidance. However, both individual human experts and existing decision support systems (DSS) have limited capabilities to provide optimal decisional guidance in such highly uncertain settings. While human experts have cognitive and resource constraints that prevent them from providing optimal guidance, computational DSS are frequently to deal with such complex problems. Consequently, the purpose of this dissertation is to provide prescriptive knowledge for novel forms of decisional guidance that support entrepreneurial decision makers by proposing collective intelligence and crowdsourcing (effective) as well as hybrid intelligence (effective and efficient) mechanism for efficient and effective decisional guidance. Following a design science research approach, I develop several artefacts such as system architectures and DSSs that are evaluated and provide innovative design knowledge for hybrid intelligence IS. The contribution of this dissertation is threefold. First, I provide an in-depth exploration of decisional guidance and its limitations in entrepreneurial decision making. Second, I propose collective intelligence and IT enabled crowdsourcing as a novel mechanism to guide entrepreneurs in creating their opportunities. Third, I conceptually develop hybrid intelligence as novel forms for making predictions under uncertainty. My research therefore provides prescriptive knowledge on the design of such hybrid intelligence architectures that are capable to predict uncertain outcomes. Finally, my results point towards a new class of DSS that might be particularly valuable in highly uncertain contexts.
Dellermann, Dominik ; Calma, Adrian:Making AI Ready for the Wild- the Hybrid Intelligence Unicorn Hunter.. In: Social Science Research Network (SSRN), 2018
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Dellermann, Dominik ; Lipusch, Nikolaus ; Li, Mahei:Combining Humans and Machine Learning: A Novel Approach for Evaluating Crowdsourcing Contributions in Idea Contests.. In: Multikonferenz Wirtschaftsinformatik (MKWI), 2018
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The creative potential from innovative contributions of the crowd constitutes some critical challenges. The quantity of contributions and the resource demands to identify valuable ideas is high and remains challenging for firms that apply open innovation initiatives. To solve these problems, research on algorithmic approaches proved to be a valuable way by identifying metrics to distinguish between high and low-quality ideas. However, such filtering approaches always risk missing promising ideas by classifying good ideas as bad ones. In response, organizations have turned to the crowd to not just for generating ideas but also to evaluate them to filter high quality contributions. However, such crowd-based filtering approaches tend to perform poorly in practice as they make unrealistic demands on the crowd. We, therefore, conduct a design science research project to provide prescriptive knowledge on how to combine machine learning techniques with crowd evaluation to adaptively assign humans to ideas.
Dellermann, Dominik ; Lipusch, Nikolaus ; Ebel, Phlipp:Heading for new shores: Crowdsourcing for entrepreneurial opportunity creation.. In: European Conference of Information Systems (ECIS), 2018
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Kopal, Nils:Secure Volunteer Computing for Distributed Cryptanalysis : kassel university press GmbH, 2018 — ISBN 3737604266, 9783737604260
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Volunteer computing offers researchers and developers the possibility to distribute their huge computational jobs to the computers of volunteers. So, most of the overall cost for computational power and maintenance is spread across the volunteers. This makes it possible to gain computing resources that otherwise only expensive grids, clusters, or supercomputers offer. Most volunteer computing solutions are based on a client-server model. The server manages the distribution of subjobs to the computers of volunteers, the clients, which in turn compute the subjobs and return the results to the server. The Berkeley Open Infrastructure for Network Computing (BOINC) is the most used middleware for volunteer computing. A drawback of any client-server architecture is the server being the single point of control and failure. To get rid of the single point of failure, we developed different distribution algorithms (epoch distribution algorithm, sliding-window distribution algorithm, and extended epoch distribution algorithm) based on unstructured peer-to-peer networks. These algorithms enable the researchers and developers to create volunteer computing networks without any central server. The thesis is structured into two different parts. The first is the distribution part and discusses the aforementioned new distribution algorithms and their usage for distributed cryptanalysis. The second part is the cheating part which extends our system with solutions for cheat detection in unstructured peer-to-peer networks. In this thesis, we focus on volunteer computing for distributed cryptanalysis. Since the computational effort to break many classical as well as most modern ciphers is very huge, hundreds to thousands of computers are often needed for executing successful attacks. We show in this thesis that our solutions are well-suited for attacking classical as well as modern ciphers. Some of our algorithms have been implemented for distributed cryptanalysis, e.g. brute-force and heuristics, to solve real-world ciphers. Additionally, we evaluated all of our distribution solutions with self-written simulators and with real-world tests over the Internet in CrypTool 2. By combining 50 off-the-shelf computers, we achieved a search speed of about 615 millions AES keys per second. A single of these computers, an Intel i5-3570 with 3.4 GHz and 4 CPU cores, is able to search at a rate between 12 and 13 millions AES keys per second. The distribution is self-organized by our algorithms. Additionally, we achieved a speedup for the cryptanalysis of the classical M-94 cipher of about 6.82, with respect to using only a single computer, enabling us to break original M-94 messages within 2 hours and 56 minutes with 6 standard computers. Cheating is a well-known threat in any volunteer computing project. Cheaters aim at computing less work as demanded by the creator of the project but they try to gain the same reward, i.e. credit points, as non-cheaters deserve. Cheated results are mostly incomplete or wrong, disturbing or even destroying the final result of the volunteer computing project. This can make weeks, months, and years of computational work useless. To fight cheaters, detection and prevention mechanisms are needed. A BOINC server assigns the same subjob to different clients and uses majority voting to determine the correctness of results. Since we base our volunteer computing and our distribution algorithms on unstructured peer-to-peer networks, where all peers are equal in role, majority voting is not possible. No central server is available to assign same subjobs to different peers. Thus, we developed new cheat detection mechanisms for decentralized peer-to-peer networks. We spread the detection of a cheated result over all peers of the network. Each peer has a small probability of detecting a cheated result but the network in sum reaches a high detection rate. In this thesis, we differentiate between two cheat detection approaches: static detection, with each peer performing the same amount of detection effort, and adaptive detection, with each peer dynamically adapting his additional cheat-detection effort to the growing and shrinking size of the peer-to-peer network. Both approaches work but the static does not scale while the adaptive scales well. We show that we can achieve detection rates above 99.8 % with both, the static cheat detection approach as well as the adaptive cheat detection approach. With the adaptive cheat detection approach the needed detection effort is constant throughout the network when increasing the amount of connected nodes.
Dellermann, Dominik ; Lipusch, Nikolaus ; Ebel, Philipp ; Leimeister, Jan Marco: Design principles for a hybrid intelligence decision support system for business model validation. In: Electronic Markets vol. 29 (2018), Nr. 3, pp. 423–441
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One of the most critical tasks for startups is to validate their business model. Therefore, entrepreneurs try to collect information such as feedback from other actors to assess the validity of their assumptions and make decisions. However, previous work on decisional guidance for business model validation provides no solution for the highly uncertain and complex context of early-stage startups. The purpose of this paper is, thus, to develop design principles for a Hybrid Intelligence decision support system (HI-DSS) that combines the complementary capabilities of human and machine intelligence. We follow a design science research approach to design a prototype artifact and a set of design principles. Our study provides prescriptive knowledge for HI-DSS and contributes to previous work on decision support for business models, the applications of complementary strengths of humans and machines for making decisions, and support systems for extremely uncertain decision-making problems.
Dellermann, Dominik ; Lipusch, Nikolaus ; Ebel, Philipp:Integrating Your Ecosystem with the Hybrid Intelligence Accelerator.. In: Social Science Research Network (SSRN), 2018
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Dellermann, Dominik ; Lipusch, Nikolaus ; Ebel, Philipp:The Future of Entrepreneurship: Crowd-Based Incubation.. In: Social Science Research Network (SSRN), 2018
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Dellermann, Dominik ; Lipusch, Nikolaus:A Complementor ́s Perspective on Co-Innovation Risk.. In: Social Science Research Network (SSRN), 2018
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Draude, Claude ; Maaß, Susanne:Making IT Work: Integrating Gender Research in Computing Through a Process Model.. In: Proceedings of the 4th Conference on Gender & IT, GenderIT ’18. Heilbronn, Germany : ACM, 2018 — ISBN 978-1-4503-5346-5, pp. 43–50
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To become effective in the field of computing, gender research must explain its concepts to non-gender studies scholars and to convince them of their relevance. Our title "Making IT Work" claims that both can be done: interlinking gender research and computing, and by that improving IT systems. We present the "Gender-Extended Research and Development" (GERD) model, a process model which combines gender and diversity aspects with all phases of computing research and development. The model with seven phases is a generalization of common process models in computing. Gender/diversity expertise has been condensed into a number of aspects that characterize the social context of computing research. They can be related to and reflected during every phase. This reflection is somewhat operationalized by providing a list of questions for each combination of phase and aspect. Case studies as part of the model illustrate either in what way such reflections may help in research and development or what may happen if no such aspects have been included.
Pittroff, Fabian ; Ochs, Carsten ; Lamla, Jörn ; Büttner, Barbara:Digitale Reterritorialisierung als politische Strategie. Die Reaktionsweisen der Demokratie in den Neuverhandlungen um Privatheit.. In: Buhr, L. ; Hammer, S. ; Schölzel, H. (eds.): Staat, Internet und digitale Gouvernementalität. Wiesbaden : Springer, 2018, pp. 141–165
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Opfer, Stephan ; Ossenkopf, Marie ; Geihs, Kurt:Student Competition Teams: Combining Research and Teaching.. In: Proceedings of the 47th Annual Conference of the Southern African Computer Lecturers’ Association, SACLA 2018. Cape Town, South Africa, 2018
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Peters, Christoph:Digitale Arbeit.. In: Gronau, N. ; Becker, J. ; Leimeister, J. M. ; Overhage, S. ; Suhl, L. (eds.): Enzyklopädie der Wirtschaftsinformatik – Online-Lexikon. vol. 10. Berlin : GITO, 2018
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Kropf, Jonathan:Bewertungsformen und ihre Strukturdynamiken in sozialen Feldern: Eine Neubetrachtung der Feldtheorie im Hinblick auf die Rolle von Konsekrationsinstanzen.. In: Mathei, D. ; Neubauer, H. ; Schwetter, H. (eds.): Die Produktivität von Musikkulturen. Wiesbaden : Springer, 2018, pp. 185–206
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Kropf, Jonathan: Übersetzung, Ungleichzeitigkeit und Konflikt. In: Österreichische Zeitschrift für Soziologie vol. 43 (2018), pp. 157–178
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Kromat, Theresa ; Dehling, Tobias ; Haux, Reinhold ; Peters, Christoph ; Sick, Bernhard ; Tomforde, Sven ; Wolf, Klaus-Hendrik ; Sunyaev, Ali:Gestaltungsraum für proactive Smart Homes zur Gesundheitsförderung.. In: Multikonferenz Wirtschaftsinformatik. Lüneburg, Germany, 2018
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Kromat, Theresa ; Dehling, Tobias ; Haux, Reinhold ; Peters, Christoph ; Sick, Bernhard ; Tomforde, Sven ; Wolf, Klaus-Hendrik ; Sunyaev, Ali:Gestaltungsraum für proaktive Smart Homes zur Gesundheitsförderung.. In: Multikonferenz Wirtschaftsinformatik (MKWI), 2018
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Smart Homes sammeln eine Fülle von Daten über ihre Bewohner. Gut genutzt werden diese allerdings nicht. Smart Homes sind im wesentlichen reaktiv. Im Hinblick auf die Gesundheitsversorgung ist der Wandel zu proaktiven Smart Homes vielversprechend. Um proaktive Smart Homes Wirklichkeit werden zu lassen, sollte zunächst ein vollständiges Bild dieser komplexen und ressourcenreichen Umgebung gezeichnet werden. Das Ziel dieser Arbeit ist es, einen Gestaltungsraum für proaktive Smart Homes aufzuspannen. Ausgehend von den neun Elementen des Work System (WS) Rahmenwerks, werden Bausteine eines proaktiven Smart Homes identifiziert, beschrieben und analysiert sowie Gestaltungsfragen daraus abgeleitet, die bei einer Instanziierung eines proaktiven Smart Homes beantwortet werden müssen. Diese Arbeit bereitet einen fruchtbaren Nährboden für die zukünftige Gestaltung IT-gestützter proaktiver Lebenswelten, in denen die Gesundheit durch den Einsatz verschiedenster Systemressourcen proaktiv gefördert wird.
Eigenbrod, Laura ; Janson, Andreas ; Leimeister, Jan Marco:How Digital Nudges Influence Consumers – The Role of Social and Privacy Nudges in Retargeting.. In: Academy of Management Annual Meeting (AOM), 2018
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Retargeting is an innovative online marketing technique because it can provide consumer-specific advertising content based on consumers’ browsing behavior that meet consumers' prefer-ences and interests. Although this advertising form offers great opportunities of bringing back customers who have left an online store without to complete a purchase, retargeting is risky be-cause the necessary data collection leads to strong privacy concerns which in turn, trigger con-sumer reactance and decreasing trust. Digital nudges – small design modifications in digital choice environments which guide peoples’ behavior – present a promising concept to bypass these negative consequences of retargeting. In order to explore the positive effects of digital nudges in retargeting banners, we conducted a between-subject experiment with a subsequent survey which examines the impacts of social nudges (likes of friends) and privacy nudges (disclosure of privacy policy and purpose of retargeting banners). Whereas the social nudge led to a negative impact on consumers’ privacy concerns and a positive impact on consumers’ booking behavior, the privacy nudge did not have any significant impact. A combination of social nudge and privacy nudge showed that the privacy nudge negatively moderated the positive relationship between social nudge and consumers’ booking behavior. The derived implications provide a theory for under-standing nudges in digital environments and we offer design principles for practitioners that enable better retargeting outcomes.
Eigenbrod, Laura ; Janson, Andreas:How Digital Nudges Influence Consumers - Experimental Investigation in the Context of Retargeting.. In: European Conference on Information Systems (ECIS), 2018
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Retargeting is an innovative online marketing technique in the modern age. Although this advertising form offers great opportunities of bringing back customers who have left an online store without a com-plete purchase, retargeting is risky because the necessary data collection leads to strong privacy con-cerns which, in turn, trigger consumer reactance and decreasing trust. Digital nudges – small design modifications in digital choice environments which guide peoples’ behaviour – present a promising concept to bypass these negative consequences of retargeting. In order to prove the positive effects of digital nudges, we aim to conduct an online experiment with a subsequent survey by testing the impacts of social nudges and information nudges in retargeting banners. Our expected contribution to theory includes an extension of existing research of nudging in context of retargeting by investigating the effects of different nudges in retargeting banners on consumers’ behaviour. In addition, we aim to provide practical contributions by the provision of design guidelines for practitioners to build more trustworthy IT artefacts and enhance retargeting strategy of marketing practitioners.
Böhmann, Tilo ; Leimeister, Jan Marco ; Möslein, Kathrin: The New Frontiers of Service Systems Engineering. In: Business & Information Systems Engineering (BISE) vol. 60 (2018), Nr. 5, pp. 373–375
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Büttner, Barbara ; Geminn, Christian ; Husemann, Charlotte ; Miedzianowski, Nadine:„Die Arena der Datenschutz-Grundverordnung – Auseinandersetzungen um die Zukunft des Europäischen Datenschutzes“, ITeG – Interdisciplinary Research on Information System Design. vol. 6 : ITeG, 2018
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Almon, Lars ; Álvarez, Flor ; Lieser, Patrick ; Meuser, Tobias ; Schaller, Fabian:Ad-Hoc-Kommunikation – Gesellschaftlich wünschenswert, rechtlich ungeregelt.. In: Roßnagel, A. ; Hansen, M. ; Friedewald, M. (eds.): Die Fortentwicklung des Datenschutzes.. vol. Springer. Wiesbaden, Germany : Springer Vieweg, 2018, pp. 77–98
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C. Johannes, Paul:Analyse offener Datenquellen durch die Polizei: Entgrenzte Internet- und Darknetaufklärung in der Strafverfolgung?. In: Roßnagel, A. ; Hansen, M. ; Friedewald, M. (eds.): Die Fortentwicklung des Datenschutzes.. Wiesbaden, Germany : Springer Vieweg, 2018, pp. 151–174
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Peters, Christoph:Dienstleistungssystem.. In: Gronau, N. ; Becker, J. ; Leimeister, J. M. ; Overhage, S. ; Suhl, L. (eds.): Enzyklopädie der Wirtschaftsinformatik – Online-Lexikon. vol. 10. Berlin : GITO, 2018
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Calma, A. ; Reitmaier, T. ; Sick, B.: Semi-supervised active learning for support vector machines: A novel approach that exploits structure information in data. In: Information Sciences vol. 456 (2018), pp. 13–33
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Duong, Doan ; Xu, Yaqian ; David, Klaus:The Influence of Fast Fading and Device Heterogeneity on Wi-Fi Fingerprinting.. In: Proceedings of the 2018 IEEE 87th Vehicular Technology Conference (VTC Spring). Porto, Portugal : IEEE, 2018, pp. 1–5
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As Wi-Fi fingerprinting is a promising approach for indoor localization, one of the major challenges is understanding how fast fading and device heterogeneity problems influence the performance of the Wi-Fi fingerprinting systems. In this paper, we experimentally investigate the influence of fast fading and the device heterogeneity problems on the Wi-Fi RSS values, as well as on the performance (i.e., the recognition rate) of a Wi-Fi fingerprinting system WHERE. Besides, we also compare the performance of Wi-Fi fingerprinting in the experimental scenarios and in the real scenarios with the consideration of the fast fading problem. It concludes that both fast fading and device heterogeneity heavily influences the RSS values. However, the influence of fast fading on the performance of the Wi-Fi fingerprinting system can be mitigated when the Wi-Fi data is collected in the real scenarios.
Calma, Adrian ; Dellermann, Dominik:Decision Support with Hybrid Intelligence.. In: Organic Computing -- Doctoral Dissertation Colloquium 2018. Würzburg, Germany, 2018
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Calma, Adrian ; Kuhn, Jochen ; Leimeister, Jan Marco ; Lukowicz, Paul ; Oeste-Reiß, Sarah ; Schmidt, Albrecht ; Sick, Bernhard ; Stumme, Gerd ; et al.:A Concept for Productivity Tracking based on Collaborative Interactive Learning Techniques.. In: International Conference on Architecture of Computing Systems (ARCS), 2018 — ISBN 978-3-8007-4559-3
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The academic success of individual students differs widely and it depends on various factors, ranging from financial to social and to health aspects. In this article, we propose a concept for a novel productivity tracking system that provides the basis for a self-assessment of academic behaviour and that can be used by students to support their academic success. The development of such a system requires interdisciplinary efforts, most of them located in the field of collaborative interactive learning (CIL) that is grounded on a socio-technical system perspective. The system is interactive since it is based on bidirectional communication, collaborative in the sense that it uses students, other students, and external sources such as the Internet for generation of knowledge, and learning in the sense that it continuously and autonomously acquires knowledge. It is further self-organised as it decides about interaction partners and self-adaptive in terms of modifying its behaviour according to changing conditions.
Peters, Christoph ; Korthaus, Axel ; Kohlborn, Thomas:Smart City Portals for Public Service Delivery: Insights From a Comparative Study.. In: Sugumaran, V. (ed.): Developments and Trends in Intelligent Technologies and Smart Systems. Hershey, PA, USA : IGI Global, 2018 — ISBN 9781522536864, pp. 212–232
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Calma, Adrian ; Oeste-Reiß, Sarah ; Sick, Bernhard ; Leimeister, Jan Marco:Leveraging the Potentials of Dedicated Collaborative Interactive Learning: Conceptual Foundations to Overcome Uncertainty by Human-Machine Collaboration.. In: Hawaii International Conference on System Sciences (HICSS). Waikoloa, HI, USA, 2018 — ISBN 978-0-9981331-1-9, pp. 960–968
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Calma, Adrian ; Stolz, Moritz ; Kottke, Daniel ; Tomforde, Sven ; Sick, Bernhard:Active Learning with Realistic Data -- A Case Study.. In: International Joint Conference on Neural Networks. Rio de Janiero, Brazil, 2018
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Kress, V. ; Jung, J. ; Zernetsch, S. ; Doll, K. ; Sick, B.:Human Pose Estimation in Real Traffic Scenes.. In: 2018 IEEE Symposium Series on Computational Intelligence (SSCI). Bangalore, India, 2018
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Peters, Christoph ; Zaki, Mohamed:Modular Service Structures for the Successful Design of Flexible Customer Journeys for AI Services and Business Models – Orchestration and Interplay of Services.. In: Working Paper Series of the Cambridge Service Alliance. Cambridge, UK : Cambridge Service Alliance, University of Cambridge, 2018
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Krempl, G. ; Lemaire, V. ; Kottke, D. ; Calma, A. ; Holzinger, A. ; Polikar, R. ; Sick, B. (eds.):Proceedings of the Workshop on Interactive Adaptive Learning co-located with European Conference on Machine Learning (ECML 2018) and Principles and Practice of Knowledge Discovery in Databases (PKDD 2018), Dublin, Ireland, September 10th, 2018, CEUR Workshop Proceedings. vol. 2192 : CEUR-WS.org, 2018
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Durward, David ; Blohm, Ivo:Understanding Job Satisfaction of Crowd Workers: An Empirical Analysis of Its Determinants and Effects.. In: Multikonferenz Wirtschaftsinformatik (MKWI). Lüneburg, Germany, 2018
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Crowd work has emerged as new pattern of digitally mediated collaboration. In this paper, we focus on the determinants and effects of crowd workers’ job satisfaction – a perspective that has been largely neglected by current crowdsourcing research. We report results from a survey of 161 crowd workers participating in crowdsourced software testing. Our research shows that job satisfaction mediates the effects of monetary rewards, hedonic value, and cognitive stimulation on the intention to participate in future testing tasks. By contrast, factors of work context (i.e., flexibility and provided information) have no effects. We contribute to the literature by unraveling job satisfaction as causal mechanism influencing future participation. For practice, our results help to design more effective tasks in crowd work.
Pittroff, Fabian:Perverse Privatheiten. Die Postprivacy-Kontroverse als Labor der Transformation von Privatheit und Subjektivität.. In: Kropf, J. ; Laser, S. (eds.): Digitale Bewertungspraktiken. Für eine Bewertungssoziologie des Digitalen. Wiesbaden, 2018, pp. 191–214
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Duque Antón, S. ; Fraunholz, D. ; Lipps, D. ; Müller, J. ; Schotten, H. D. ; Zimmermann, M.:Deception in Information Security: Legal Considerations in the Context of German and European Law.. In: Imine, A. ; Fernandez Jean-Yves Marion, J. M. ; Logrippo Joaquin Garcia-Alfaro, L. (eds.): The 10th International Symposium on Foundations & Practice of Security. International Symposium on Foundations & Practice of Security (FPS-17). Nancy, France, 2018, pp. 259–274
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Duong, Doan ; Xu, Yaqian ; David, Klaus:Comparing the Performance of Wi-Fi Fingerprinting Using the 2.4 GHz and 5 GHz Signals.. In: Proceedings of the 2018 IEEE 87th Vehicular Technology Conference (VTC Spring). Porto, Portugal : IEEE, 2018, pp. 1–5
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Wi-Fi fingerprinting is a promising technique for indoor localization. The use of both 2.4 GHz and 5 GHz for Wi-Fi fingerprinting has been preliminarily studied by some research groups. However, most of the previous studies only consider the reflection and multi-paths caused by walls around but do not consider the damping and scattering through walls between them. In this paper, we particularly consider the situation that the radio propagation covers several rooms divided by walls, and compare the localization performance of using 2.4 GHz and 5 GHz networks. Moreover, we also compare the power consumption of scanning the surrounding wireless channels used for 2.4 GHz and 5 GHz networks. The results show that the performance of accuracy of Wi-Fi fingerprinting is similar when using 2.4 GHz and 5 GHz respectively. However, the use of 5 GHz results in higher response rate, while the use of 2.4 GHz consumes less power.
Geminn, Christian ; Laubach, Anne ; Fujiwara, Shizuo: „Schutz anonymisierter Daten im japanischen Datenschutzrecht – Kommentierung der neu eingeführten Kategorie der ‚Anonymously Processed Information‘“. In: Zeitschrift für Datenschutz (2018), Nr. 9
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Gruhl, Christian ; Sick, Bernhard: Novelty detection with CANDIES: a holistic technique based on probabilistic models. In: Int. J. Machine Learning & Cybernetics vol. 9 (2018), Nr. 6, pp. 927–945
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Blazy, Stephan:Verantwortung für die Datenverarbeitung.. In: Roßnagel, A. (ed.): Das neue Datenschutzrecht - Europäische Datenschutz-Grundverordnung und deutsche Datenschutzgesetze. Baden-Baden : Nomos, 2018, pp. 155–163
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Heck, Henner ; Sick, Bernhard ; Tomforde, Sven:Security Issues in Self-Improving System Integration - Challenges and Solution Strategies.. In: 2018 IEEE 3rd International Workshops on Foundations and Applications of Self* Systems (FAS*W), Trento, Italy, September 3-7, 2018, 2018, pp. 176–181
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Lamla, Jörn ; Laser, Stefan:Verbraucherschutz.. In: H., B.-M. ; S., K. M. (eds.): Gesellschaftliche Verantwortung von Unternehmen in Deutschland. Wiesbaden : Springer, 2018, pp. 285–299
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Bile, Tamer ; Nebel, Maxi ; Grigorjew, O.:Tracking - Beschreibung und Bewertung neuer Methoden. Karlsruhe : Fraunhofer ISI, 2018. — Schriftenreihe Forum Privatheit
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Hegenberg, J. ; Schimpf, D. W. ; Fischer, N. ; Schmidt, L.: Fallstudie zur Roboterunterstützung des Menschen bei manueller Montage. In: Zeitschrift für Arbeitswissenschaft vol. 72 (2018), Nr. 4, pp. 239–251
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Anhand eines Montagearbeitsplatzes der Automobilindustrie wird die Integration eines unterstützenden Roboters betrachtet. Für die praxisnahe Evaluation der Roboterunterstützung wurde im Labor ein Mock-up des Arbeitsplatzes realisiert. Die damit durchgeführte Studie (n = 21) fokussierte sich auf die Steigerung der Effizienz des Arbeitsprozesses durch die technische Unterstützung und die Verringerung der Beanspruchung für den Werker durch Übernahme eines Teils der Materialhandhabung durch den Roboter. Die Effizienzsteigerung und Beanspruchungsreduktion ließen sich statistisch signifikant belegen. Vor dem Hintergrund der Akzeptanz einer solchen Roboterunterstützung wurde auch die Gebrauchstauglichkeit betrachtet und positiv bewertet. Praktische Relevanz. Einerseits finden wissenschaftliche Studien zur Mensch-Roboter-Kollaboration häufig in vereinfachten oder künstlichen Setups bspw. der Handhabung von Bauklötzen oder in VR-Umgebungen statt, andererseits werden vor allem in Großunternehmen Versuchsstände realisiert, die öffentlichkeitswirksam präsentiert werden können, aber häufig eine gewissen Praxisferne aufweisen. Der Aufbau und die Nutzung eines Mock-ups, der sich möglichst nah am realen Montagearbeitsplatz orientiert und ausschließlich kommerziell verfügbare Standardkomponenten nutzt, zur Durchführung wissenschaftlicher Studien anhand tatsächlicher und in der Industrie häufig vorzufindender Arbeitsprozesse stellt hier die hohe praktische Relevanz und die Übertragbarkeit der Ergebnisse sicher.
Mrass, Volkmar ; Peters, Christoph ; Leimeister, Jan Marco:Managing Complex Work Systems via Crowdworking Platforms: How Deutsche Bank Explores AI Trends and the Future of Banking with Jovoto.. In: Hawaii International Conference on System Sciences (HICSS), 2018
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Crowdsourcing has evolved into a powerful new instrument for companies. In the last years, crowdworking platforms that manage work systems as intermediaries between crowdsourcers and crowd workers have increasingly been used. Nevertheless, they currently often manage rather simple work systems. Although they have the potential for managing more complex ones, there is still little knowledge how this can be done and what measures are necessary to do so. To explore this question in more detail, we investigate three seminal projects that Deutsche Bank completed with the crowdworking platform Jovoto and that aimed at exploring AI trends and developing concepts for the future of banking. We derive measures necessary for the successful management of complex work systems and provide a model as guidance for both companies and crowdworking platform operators. With our findings, we extend current knowledge in the realm of IS, organizational theory, and platform ecosystems.
Bile, Tamer ; Geminn, Christian ; Grigorjew, Olga ; Johannes, Paul Christian ; Karaboga, M. ; Krämer, N. ; Maier, Natalie ; Martin, N. ; et al. ; Roßnagel, A. (ed.):Datenschutz stärken, Innovationen ermöglichen – Wie man den Koalitionsvertrag ausgestalten sollte, Policy Paper des Forum Privatheit. Karlsruhe, 2018
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Hegenberg, J. ; Kannengießer, N. ; Klose, E. ; Schmidt, L.:CAVE-basierte Nutzerstudie eines Aufenthalts-Empfehlungssystems.. In: Dachselt, R. ; Weber, G. (eds.): Mensch und Computer 2018 - Tagungsband (Dresden 2018). Bonn : Gesellschaft für Informatik e. V, 2018, pp. 117–128
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Reiseassistenzsysteme sind vielversprechend, um individualisierte und kontextbezogene Unterstützung entlang intermodaler Reiseketten im öffentlichen Verkehr anzubieten. Hierbei stellen sowohl zeitkritische Situationen als auch solche mit längerer Wartezeit eine Belastung des Reisenden dar. Für letztere bietet das untersuchte System Assistenz durch individualisierte Gestaltungsvorschläge für längere Aufenthalte. In Vorbereitung auf eine großangelegte Feldstudie wurden vier Varianten des zugrundeliegenden Empfehlungssystems und ein Trainingsansatz zur Initialisierung des Nutzerprofils hinsichtlich der numerischen und der subjektiv wahrgenommenen Genauigkeit der Empfehlungen evaluiert. Die Benutzungsschnittstelle in einer optischen Durchsichtdatenbrille wird außerdem hinsichtlich ihrer Gebrauchstauglichkeit evaluiert. Für die Evaluation wurde eine Reise inkl. zweier längerer Aufenthalte mittels einer CAVE simuliert.
Mrass, Volkmar ; Peters, Christoph ; Leimeister, Jan Marco:Managing Complex Work Systems via Crowdworking Platforms: How Intel and Hyve Explore Future Technological Innovations.. In: Hawaii International Conference on System Sciences (HICSS), 2018
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Crowdsourcing has the potential to change the way how companies and other organizations are working currently. Numerous companies are already exploiting this new form of work organization and are utilising the “wisdom of crowds”. Crowdworking platforms as intermediaries that manage the work system including customer companies and crowd workers play an important role in this context. Nevertheless, they currently mostly manage rather simple work systems that process rather plain work. In this summary for the HICSS 2018 Doctoral Consortium, we depict our current work in progress that aims at investigating how such platforms could also manage more complex work systems – a question that is crucial for the future success of this business model. Using the case of Intel and the crowdworking platform Hyve, we investigate one successful approach to tackle this challenge, elaborate on our method used as well as the theoretical background and communicate our first, preliminary findings.
Lamla, Jörn:Work and Consumption: A New Perspective for Economic Democracy.. In: Dörre, K. ; Mayer-Ahuja, N. ; Sauer, D. ; Wittke, V. (eds.): Capitalism and Labor. Towards Critical Perspectives. Frankfurt/New York : Campus, 2018, pp. 318–334
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Bile, Tamer ; Geminn, Christian ; Grigorjew, Olga ; Husemann, Charlotte ; Nebel, Maxi ; Roßnagel, Alexander:Fördern und Fordern: Regelungsformen zur Anreizgestaltung für einen wirksameren Schutz von Privatheit und informationeller Selbstbestimmung.. In: Friedewald (ed.): Privatheit und selbstbestimmtes Leben in der digitalen Welt, Interdisziplinäre Perspektiven auf aktuelle Herausforderungen des Datenschutzes : Springer Vieweg, 2018, pp. 83–126
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Mrass, Volkmar ; Peters, Christoph ; Leimeister, Jan Marco:Good Practices deutscher Crowdworking-Plattformen.. In: ITeG Technical Reports, Band 6: Herausforderung Cloud & Crowd: Good Practices und Handlungsempfehlungen. Kassel, Germany : University Press, 2018, pp. 13–20
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K. Bader, K. ; Jansen, C. ; Johannes, P. C. ; Krämer, N. ; Kreutzer, M. ; Löber, L. I. ; Rinsdorf, L. ; Rösner, L. ; et al.:Desinformation aufdecken und bekämpfen. Handlungsempfehlungen, Policy Paper DORIAN, Schriftenreihe Forum Privatheit. Darmstadt : Fraunhofer SIT, 2018
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Seeber, Isabella ; Bittner, Eva ; Briggs, Robert O. ; De Vreede, Gert-Jan ; De Vreede, Triparna ; Druckenmiller, Douglas ; Maier, Ronald ; Merz, Alexander B. ; et al.:Machines as Teammates: A Collaboration Research Agenda.. In: Hawaii International Conference on System Sciences (HICSS), 2018 — ISBN 978-0-9981331-1-9, pp. 420–429
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Humans will soon need to adapt to a collaborative setting in which technology becomes a smart collaboration partner that works with a group to achieve its goals. It is therefore time for collaboration researchers to explore the vast opportunities afforded by smart technology and to test its utility for enhancing team processes and outcomes. In this paper, we take a long view on the implications of smart technology for collaboration process design, and propose a research agenda for the next decade of collaboration research. We create a reference model to frame the research agenda.
Bile, Tamer ; Geminn, Christian ; Grigorjew, Olga ; Husemann, Charlotte ; Nebel, Maxi ; Roßnagel, Alexander:„Fördern und Fordern – Regelungsformen zur Anreizgestaltung für einen wirksameren Schutz von Privatheit und Selbstbestimmung“.. In: Friedewald, M. (ed.): „Privatheit und selbstbestimmtes Leben in der digitalen Welt – Interdisziplinäre Perspektiven auf aktuelle Herausforderungen des Datenschutzes“ : Springer Vieweg, 2018, pp. 83–126
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Heck, Henner ; Kieselmann, Olga ; Kopal, Nils ; Wacker, Arno:A Decentralized Resilient Short-Term Cache for Messaging.. In: IFIP International Conference on Distributed Applications and Interoperable Systems (DAIS), Lecture Notes in Computer Science. vol. 10853 : Springer, 2018, pp. 110–121
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Messaging applications are among the most popular internet applications and people use them worldwide on a daily basis. Their supporting infrastructure, though consisting of a multitude of servers, is typically under central control. This enables censorship and seamless user profiling. A fully decentralized infrastructure, with decentralized control and redundant data storage, can mitigate these dangers. In this paper we evaluate the basic ability of decentralized networks created by the network overlay and data storage protocol Kademlia to serve as a short-term data cache for messaging applications. Our results show, that reliable retrieval of up to 20 replicas is possible.
Mrass, Volkmar ; Peters, Christoph ; Leimeister, Jan Marco:Handlungsbroschüre Crowdworking-Plattformen - Neue Organisationskonzepte für Dienstleistungen nachhaltig gestalten ( Nr. 7). vol. ITeG Technical Reports: Wissenschaftliches Zentrum für Informationstechnik-Gestaltung (ITeG) an der Universität Kassel. 7. ed.. Kassel, Germany : Kassel University Press, 2018 — ISBN 978-3-7376-5073-1
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Bile, Tamer:"Fördern und Fodern: Regelungsformen zur Anreizgestaltung für einen wirksameren Schutz von Privatheit und informationeller Selbstbestimmung".. In: Friedewald, M. (ed.): Privatheit und selbstbestimmtes Leben in der digitalen Welt. Wiesbaden, 2018, pp. 83–126
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Seipp, Ann-Kathrin ; Heißler, Clara ; Ohly, Sandra:Reduzieren Unterbrechungen die Arbeitsleistung? Ein experimenteller Vergleich selbst- und fremdbestimmter Unterbrechungen.. In: Presentation at the 51. Kongress der deutschen Gesellschaft für Psychologie (DGPs) in Frankfurt, 2018
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Mrass, Volkmar ; Peters, Christoph ; Leimeister, Jan Marco:Managing Complex Work Systems via Crowdworking Platforms: The Case of Hamburger Hochbahn and Phantominds.. In: Hawaii International Conference on System Sciences (HICSS), 2018
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In the last decade, crowdsourcing has emerged as a new form of work organization. Crowdworking platforms as intermediaries between crowdsourcing companies and crowd workers have gained importance in this process. Currently, many of these platforms manage rather simple work systems. Using the case of the German Hamburger Hochbahn AG and the innovation platform Phantominds, this paper investigates measures necessary for crowdworking platforms to be able to manage also more complex work systems. To derive such measures, we analyze the work system of Hamburger Hochbahn and Phantominds, explore the interplay between the crowd and the platform provider and subsequently provide recommendations for companies that would like to use crowdworking platforms for the processing of work and for platform operators. With this paper, we extend current knowledge in the realms of IS, organizational theory, and platform ecosystems.
Hanika, Tom ; Zumbrägel, Jens:Towards Collaborative Conceptual Exploration.. In: Chapman, P. ; Endres, D. ; Pernelle, N. (eds.): ICCS, Lecture Notes in Computer Science. vol. 10872 : Springer, 2018 — ISBN 978-3-319-91379-7, pp. 120–134
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Billert, Matthias Simon ; Peters, Christoph:Grinding A Diamond - The Iterative Development of Citizen-Initiated Services.. In: European Conference on Information Systems (ECIS), 2018
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Many city administrations follow the smart city concept to grasp the potential of citizen participation. However, most participation concepts are not developed thoroughly, this leading to unexploited poten-tial. Citizens are experts of their everyday life and are best aware of their personal needs. However, current forms of citizen participation stop at the idea phase of service engineering. Following design science research, we iteratively build and evaluate a so-called “digitalization street” which aims to systematically guide the citizens through the refinement and further development of their services. This digitalization street is implemented in a mid-size European city and integrates five modules which let citizens (1) describe their project proposal, (2) concretise according strengths, weaknesses, opportuni-ties and threats, (3) identify the gain creators and pain relievers, (4) create their solution, (5) present their solution. Based on literature and a requirement elicitation workshop, a first instantiation of the artefact was developed. We contribute to the existing body of knowledge by presenting a framework for creating services based on a citizen-centric approach. We exhibit how the digitalization street can be implemented into existing processes in the city administration and help to increase the citizen par-ticipation from a project to an evaluated prototype.
Heinisch, Judith ; Hübener, Isabel ; David, Klaus:The Impact of Physical Activities on the Physiological Response to Emotions.. In: Proceedings of the 2018 IEEE International Conference on Pervasive Computing and Communications Workshops (PerCom Workshops). Athens, Greece : IEEE, 2018, pp. 860 – 865
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Heissler, Clara ; Ohly, Sandra: When Thinking about Work Makes Employees Reach for their Devices. A Cross-lagged Panel Diary Study. In: Academy of Management Proceedings vol. 2018 (2018), Nr. 1
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Previous research assumed that work-related ICT use impairs psychological detachment from work. However, since past studies assessed both variables cross-sectionally, little is actually known about the direction of effects in the relationship. This 5-day diary study implemented a cross-lagged panel design to shed light on the relationship between work-related ICT use and detachment (N = 211 employees, N = 2816 data points). Contrary to current research consensus we found that psychological detachment was related to an increase in work- related ICT use, but not vice versa. Furthermore, our results support the notion that unfinished work tasks act as a job stressor preceding both variables. Our findings suggest that work-related ICT use should not be treated as a job stressor but as a strategy employees rely on to cope with a high workload.
Hanika, Tom ; Schneider, Friedrich Martin ; Stumme, Gerd: Intrinsic Dimension of Geometric Data Sets (2018). — cite arxiv:1801.07985Comment: v2: completely rewritten 28 pages, 3 figures, 2 tables
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The curse of dimensionality is a phenomenon frequently observed in machine learning (ML) and knowledge discovery (KD). There is a large body of literature investigating its origin and impact, using methods from mathematics as well as from computer science. Among the mathematical insights into data dimensionality, there is an intimate link between the dimension curse and the phenomenon of measure concentration, which makes the former accessible to methods of geometric analysis. The present work provides a comprehensive study of the intrinsic geometry of a data set, based on Gromov's metric measure geometry and Pestov's axiomatic approach to intrinsic dimension. In detail, we define a concept of geometric data set and introduce a metric as well as a partial order on the set of isomorphism classes of such data sets. Based on these objects, we propose and investigate an axiomatic approach to the intrinsic dimension of geometric data sets and establish a concrete dimension function with the desired properties. Our mathematical model for data sets and their intrinsic dimension is computationally feasible and, moreover, adaptable to specific ML/KD-algorithms, as illustrated by various experiments.
Schindler, Stephan ; Salzmann, Miriam: Der internationale Siegeszug der größten Katastrophe des 21. Jahrhunderts?. In: ZD-Aktuell (2018), p. 06293
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Herde, Marek ; Kottke, Daniel ; Calma, Adrian ; Bieshaar, Maarten ; Deist, Stephan ; Sick, Bernhard:Active Sorting -- An Efficient Training of a Sorting Robot with Active Learning Techniques.. In: International Joint Conference on Neural Networks. Rio de Janiero, Brazil, 2018
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Schindler, Stephan ; Wentland, Katharina: Videoüberwachung - quo vadis?. In: ZD-Aktuell (2018), p. 06057
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Billert, Matthias Simon ; Li, Mahei Manhai ; Persch, Jan Martin ; Peters, Christoph ; Leimeister, Jan Marco:Dienstleistungssysteme im Smart City Kontext: Herausforderungen, Anwendungsfälle und Lösungskonzepte.. In: Arnold, C. ; Knödler, H. (eds.): Die informatisierte Service-Ökonomie. vol. 1. Wiesbaden, Hessen : Springer Gabler, 2018 — ISBN 978-3-658-21528-6, pp. 297–308
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Miedzianowski, Nadine:Rechtsbehelfe und Haftung.. In: Das neue Datenschutzrecht – Europäische Datenschutz-Grundverordnung und deutsche Datenschutzgesetz. Baden-Baden : Nomos, 2018, pp. 142–153
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Billert, Matthias Simon:Developing And Implementing Citizen-initiated Services.. In: International Conference on Exporing Service Science (IESS), 2018
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Most citizen participation concepts in city administrations are not sufficiently developed and stop at the idea phase of service engineering, which leads to challenges for administrations. However, top-down approaches of the government fail because citizens do not accept the invitation to participate and bottom-up approaches of citizen initiatives claim the attention and support of administrations. To counteract this, citizens are involved as experts of their everyday life. Following design science research, we iteratively build the “digitalization street”, which is a portal that systematically guides the citizens through the development of own services. For a formative and artificial evaluation, we used a framework with a human risk and effectiveness strategy. Thus, we contribute to the existing body of knowledge by systematically reconditioned knowledge about citizen sensing and we exhibit requirements for guidelines concerning how citizens can develop own services that can be implemented in the city administrations.
Schindler, Stephan ; Schneider, Jana: Videoüberwachung: Ein Fall für zwei? Die Videoüberwachung im Spannungsfeld von DSGVO und JI-RL. In: Privacy in Germany (2018), pp. 247–252
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Schindler, Stephan ; Schneider, Jana: Videoüberwachung als Verarbeitung besonderer Kategorien personenbezogener Daten. Datenschutzrechtliche Anforderungen beim Erheben von Videodaten. In: Zeitschrift für Datenschutz (2018), pp. 463–469
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Dellermann, Dominik ; Jud, Christopher ; Lipusch, Nikolaus ; Popp, Karl Michael:Managing the Dark Side of Software Ecosystems.. In: Social Science Research Network (SSRN), 2018
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Henze, Janosch ; Kutzner, Stephan ; Sick, Bernhard:Sampling Strategies for Representative Time Series in Load Flow Calculations.. In: Data Analytics for Renewable Energy Integration. Technologies, Systems and Society - 6th ECML PKDD Workshop, DARE 2018, Dublin, Ireland, September 10, 2018, Revised Selected Papers, 2018, pp. 27–48
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Schindler, Stephan ; Kottke, Clara: Dieselfahrverbote und Kennzeichenerkennung. In: ZD-Aktuell (2018), p. 06392
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Johannes, Paul ; Roßnagel, Alexander ; Hornung, Gerrit ; Geminn, Christian:Rechtsverträgliche Technikgestaltung und technikadäquate Rechtsentwicklung. vol. 30 Jahre Projektgruppe verfassungsverträgliche Technikgestaltung : Kassel University Press, 2018
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Schindler, Stephan ; Goeble, Thilo ; Schneider, Jana:Die Vermessung des Arbeitnehmers.. In: Schartner, P. ; Pohlmann, N. (eds.): D-A-CH Security 2018. Bestandsaufnahme, Konzepte, Anwendungen, Perspektiven. Frechen, Germany : syssec, 2018, pp. 252–263
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Johannes, Paul C. ; Geminn, Christian: „Datenschutz-Grundverordnung – eine neue Ära des Datenschutzes?“. In: ZD-Aktuell vol. 13 (2018), Nr. 8
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Mrass, Volkmar ; Leimeister, Jan Marco:Crowdworking-Plattformen als Enabler neuer Formen der Arbeitsorganisation.. In: Fortmann, H. R. ; Kolocek, B. (eds.): Arbeitswelt der Zukunft: Trends - Arbeitsraum - Menschen - Kompetenzen. Wiesbaden, Germany : Gabler Verlag, 2018 — ISBN 978-3-658-20968-1, pp. 139–151
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Johannes, Paul Christoper:Archivierung.. In: Roßnagel, A. (ed.): Das neue Datenschutzrecht – Europäische Datenschutz-Grundverordnung und deutsche Datenschutzgesetze. Baden-Baden : Nomos, 2018, pp. 314–324
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Herfurth, Constantin ; Schinder, Stephan ; Wagner, Bernd: Die europäische Datenschutz-Grundverordnung - Der Anbruch einer neuen Ära. In: Bonner Rechtsjournal (2018), pp. 16–22
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Johannes, Paul Christoper:Grundrechtecharta und Grundgesetz.. In: Roßnagel, A. (ed.): . Baden-Baden : Nomos, 2018, pp. 54–61
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Johannes, Paul Christopher:Wissenschaftliche Forschung.. In: Roßnagel, A. (ed.): Das neue Datenschutzrecht – Europäische Datenschutz-Grundverordnung und deutsche Datenschutzgesetze. Baden-Baden : Nomos, 2018
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Mrass, Volkmar ; Peters, Christoph:Digitale Wertschöpfung durch Crowd Services: Neue Formen des Kundensupports am Beispiel Mila und Swisscom.. In: Multikonferenz Wirtschaftsinformatik (MKWI), 2018
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Die digitale Transformation verändert gegenwärtig die Art und Weise, wie Arbeit erbracht und organisiert wird. Bestehende Geschäftsmodelle verlieren an Attraktivität, neue Geschäftsmodelle kommen hinzu. Zwei Trends sind dabei besonders signifikant: Die „Plattform-Ökonomie“, mit Crowdworking-Plattformen als einer ‚Spielart‘, die in den letzten Jahren starken Zulauf erfahren hat, und die „Sharing-Economy“. In diesem Beitrag zeigen wir am Beispiel der Crowdworking-Plattform Mila und ihres Kunden und 51-prozentigen Eigentümers Swisscom AG, wie Unternehmen die Crowd für Wertschöpfung einsetzen, ihren Kundensupport ausbauen und damit Vorteile für alle Beteiligten generieren können. Die Crowdworking-Plattform Mila verbindet in einem neuartigen Ansatz das Paradigma der Crowd, insbesondere die Nutzung einer Vielzahl von Leistungserbringern, mit den Prinzipien der Sharing-Economy, vor allem dem Einbezug der Kunden als Produzenten von Dienstleistungen. Basierend auf Experten-Tiefen-Interviews mit Verantwortlichen von Mila und Swisscom analysieren wir in diesem Beitrag dieses neuartige Arbeitssystem inklusive des Zusammenspiels aller Beteiligten und leiten daraus Handlungsempfehlungen für Unternehmen ab.
Schindler, Stephan: Mit dem Auto nach Karlsruhe: Dashcams und der BGH. In: ZD-Aktuell (2018), p. 06149
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Herrmann, R. ; Schmidt, L.: Design and Evaluation of a Natural User Interface for Piloting an Unmanned Aerial Vehicle. In: i-com - Zeitschrift für interaktive und kooperative Medien vol. 17 (2018), Nr. 1, pp. 15–24
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Controlling an unmanned aerial vehicle is challenging and requires an intensive training. One cause is the teleoperation with the conventional input device, the remote control, whose functions are complicate. This paper presents an alternative concept for the teleoperation. Its realization includes a Thalmic Myo gesture control wristlet and a Microsoft HoloLens head-mounted display. These devices are used to implement an augmented reality interface, a tactile feedback and a gesture and speech input. Finally, this implementation has been evaluated with 30 participants and compared with a conventional remote control. The results show that the proposed interface is a good solution but does not reach the performance of the remote control.
Scheiner, Nicolas ; Appenrodt, Nils ; Dickmann, Jürgen ; Sick, Bernhard:Radar-based Feature Design and Multiclass Classification for Road User Recognition.. In: 2018 IEEE Intelligent Vehicles Symposium (IV). Changshu, China : IEEE, 2018, pp. 779–786
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Bile, T.: Computers, Privacy & Data Protection (CPDP), 24. Januar bis 26. Januar 2018 in Brüssel. In: DuD vol. 42 (2018), Nr. 4, pp. 266–267
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Hanika, Tom ; Schneider, Friedrich Martin ; Stumme, Gerd: Intrinsic dimension of concept lattices. In: CoRR vol. abs/1801.07985 (2018). — cite arxiv:1801.07985Comment: 13 pages, 3 figures
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Geometric analysis is a very capable theory to understand the influence of the high dimensionality of the input data in machine learning (ML) and knowledge discovery (KD). With our approach we can assess how far the application of a specific KD/ML-algorithm to a concrete data set is prone to the curse of dimensionality. To this end we extend V.~Pestov's axiomatic approach to the instrinsic dimension of data sets, based on the seminal work by M.~Gromov on concentration phenomena, and provide an adaptable and computationally feasible model for studying observable geometric invariants associated to features that are natural to both the data and the learning procedure. In detail, we investigate data represented by formal contexts and give first theoretical as well as experimental insights into the intrinsic dimension of a concept lattice. Because of the correspondence between formal concepts and maximal cliques in graphs, applications to social network analysis are at hand.
Gilga, Carolin ; Schindler, Stephan: HUMAN+: Deutsch-österreichisches Forschungsprojekt. In: ZD-Aktuell (2018), p. 06255
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Bieker, Felix ; Geminn, Christian: „Interdisziplinäre Konferenz des ‚Forum Privatheit‘: Die Fortentwicklung des Datenschutzes“. In: ZD-Aktuell vol. 2 (2018)
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Jänicke, Martin ; Sick, Bernhard ; Tomforde, Sven: Self-Adaptive Multi-Sensor Activity Recognition Systems Based on Gaussian Mixture Models. In: Informatics vol. 5 (2018), Nr. 3, p. 38
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Hanika, Tom ; Koyda, Maren ; Stumme, Gerd: Relevant Attributes in Formal Contexts.. In: CoRR vol. abs/1812.08868 (2018)
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Navarro Bullock, Beate ; Hotho, Andreas ; Stumme, Gerd:Accessing Information with Tags: Search and Ranking.. In: Brusilovsky, P. ; He, D. (eds.): Social Information Access: Systems and Technologies. Cham : Springer International Publishing, 2018 — ISBN 978-3-319-90092-6, pp. 310–343
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With the growth of the Social Web, a variety of new web-based services arose and changed the way users interact with the internet and consume information. One central phenomenon was and is tagging which allows to manage, organize and access information in social systems. Tagging helps to manage all kinds of resources, making their access much easier. The first type of social tagging systems were social bookmarking systems, i.e., platforms for storing and sharing bookmarks on the web rather than just in the browser. Meanwhile, (hash-)tagging is central in many other Social Media systems such as social networking sites and micro-blogging platforms. To allow for efficient information access, special algorithms have been developed to guide the user, to search for information and to rank the content based on tagging information contributed by the users.
Goeble, Thilo ; Scheuble, Anne: USA: Microsoft erhält breite Unterstützung vor dem US-Supreme Court zur Sicherung des freien Datenverkehrs. In: ZD-Aktuell (2018), p. 06009
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Kieselmann, Olga:Data Revocation on the Internet, ITeG - Interdisciplinary Research on Information System Design : kassel university press, 2018 — ISBN 3737604207, 978-3737604208
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After publishing data on the Internet, the data publisher loses control over it. However, there are several situations where it is desirable to revoke published information. To support this, the European Commission has elaborated the General Data Protection Regulation (GDPR), which is mandatory for all countries in the European Union and must be applied from 25 May 2018. In particular, this regulation requires that providers must delete the data on user's demand. However, the data might already have been copied by third parties. Therefore, Article 17 of the GDPR includes the regulation that the provider must also inform all affected third parties about the user's request. Hence, the providers would need to track every access, which is hard to achieve. This technical infeasibility is a gap between the legislation and the current technical possibilities. To close this gap, we analyse the possibilities for a technical realisation of data deletion and propose a solution, which is based on the combination of the technical mechanisms and the obligation to follow the legal regulations of the GDPR. Our technical solution is a distributed and decentralized Internet-wide data revocation service (DRS). Hereby, we aim to support users to remain in control over their data even after publishing them on the Internet, and to give providers a possibility to follow the legal regulations of the Article 17 of the GDPR. With the DRS, the user is able to notify automatically and simultaneously all affected providers about her revocation request of a certain data object. Thus, we implicitly provide the notification of third parties about the user's request. Hereby, we propose two approaches how to distribute the revocation notification from users to providers: (1) to push the revocation requests to providers or (2) providers pull the revocation requests by themselves. Elaborating the DRS, protection of user's privacy and anonymity on the Internet is our central objective. To achieve this with a distributed and decentralized system, we supplement the DRS with a new privacy-aware fine-grained access control. We evaluate the DRS and its access control in terms of attacker resilience, computational and memory effort both through theoretical analysis and through simulations.
Nebel, Maxi: Sachsen auf dem Weg zur elektronischen Verwaltung. In: ZD-Aktuell (ed.) (2018), Nr. 05952
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Kieselmann, Olga ; Wacker, Arno: Löschen im Internet – rechtlich gefordert und technisch möglich!. In: Datenschutz und Datensicherheit (DuD) vol. 42/7 (2018), Nr. 7/2018, pp. 437–441
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Die im Art. 17 der Datenschutz-Grundverordnung (DSGVO) enthaltene Regelungen für das Löschen, insbesondere die Pflicht, Dritte über die Löschanfragen zu informieren, sind mit einem hohen Aufwand für die Verantwortlichen verbunden, sodass sie ohne eine technische Unterstützung in der Praxis nicht umgesetzt werden können. Die zurzeit jedoch fehlenden technischen Lösungen führen zu einer Lücke zwischen den Rechtsvorschriften und den derzeitigen technischen Möglichkeiten, während die DSGVO ab Mai 2018 anzuwenden ist. Um diese Lücke zu schließen, wird im Folgenden zunächst analysiert, welche Möglichkeiten im Allgemeinen bestehen, das Löschen im Internet gemäß Art. 17 technisch umzusetzen. Anschließend wird eine Lösung für die Verteilung der Löschanfragen an die Verantwortlichen vorgestellt, das auf der Kombination der Technik mit dem Gesetz beruht und sowohl den Betroffenen als auch den Verantwortlichen ein Werkzeug zur Unterstützung des Art. 17 zur Verfügung stellt.
Lamla, Jörn:Entgrenzter Konsum und Konsequenzen für die Verbraucherforschung.. In: Kenning, P. ; Lamla, J. (eds.): Entgrenzungen des Konsums. Dokumentation der Jahreskonferenz des Netzwerks Verbraucherforschung. Wiesbaden : Springer Gabler, 2018, pp. 147–153
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Nebel, Maxi:Erlaubnis zur Datenverarbeitung.. In: Roßnagel, A. (ed.): Das neue Datenschutzrecht – Europäische Datenschutz-Grundverordnung und deutsche Datenschutzgesetze. Baden-Baden : Nomos, 2018, pp. 104–115
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Jänicke, Martin ; Schmidt, Viktor ; Sick, Bernhard ; Tomforde, Sven ; Lukowicz, Paul ; Schmeißing, Jörn:Smart Device Stealing and CANDIES.. In: Agents and Artificial Intelligence - 10th International Conference, ICAART 2018, Funchal, Madeira, Portugal, January 16-18, 2018, Revised Selected Papers, 2018, pp. 247–273
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Jänicke, Martin ; Schmidt, Viktor ; Sick, Bernhard ; Tomforde, Sven ; Lukowicz, Paul:Hijacked Smart Devices -- Methodical Foundations for Autonomous Theft Awareness based on Activity Recognition and Novelty Detection.. In: Proceedings of the 10th International Conference on Agents and Artificial Intelligence, 2018
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Nebel, Maxi: Big Data und Datenschutz in der Arbeitswelt, Risiken der Digitalisierung und Abhilfemöglichkeiten. In: Zeitschrift für Datenschutz (2018), Nr. 11, pp. 520–524
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Nebel, Maxi: Das NetzDG – besser als sein Ruf. In: ZD-aktuell (2018), Nr. 7
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Nebel, Maxi: White Paper zu neuartigen Tracking-Methoden. In: ZD-aktuell (2018), Nr. 9
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Nebel, Maxi:Rechtswege.. In: Roßnagel, A. (ed.): Das neue Datenschutzrecht – Europäische Datenschutz-Grundverordnung und deutsche Datenschutzgesetze. Baden-Baden : Nomos, 2018, pp. 75–81
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Maier, Natalie ; Ossoinig, Verena:Betriebliche und behördliche Datenschutzbeauftragte.. In: Roßnagel, A. (ed.): Das neue Datenschutzrecht - Europäische Datenschutz-Grundverordnung und deutsche Datenschutzgesetze. Baden-Baden : Nomos, 2018, pp. 220–228
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Bieker, Felix ; Geminn, Christian:„Die Fortentwicklung des Datenschutzes“.. In: Roßnagel, A. ; Friedewald, M. ; Hansen, M. (eds.): „Zur künftigen Fortentwicklung des Datenschutzes“. Wiesbaden : Springer Vieweg, 2018, pp. 407–414
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Kibanov, Mark ; Becker, Martin ; Müller, Jürgen ; Atzmueller, Martin ; Hotho, Andreas ; Stumme, Gerd:Adaptive kNN Using Expected Accuracy for Classification of Geo-Spatial Data.. In: Proc. 33rd ACM Symposium On Applied Computing. New York, NY, USA : ACM Press, 2018
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Bieker, Felix ; Geminn, Christian:Zur künftigen Fortentwicklung des Datenschutzes.. In: Roßnagel, A. ; Hansen, M. ; Friedewald, M. (eds.): Die Fortentwicklung des Datenschutzes.. Wiesbaden, Germany : Springer Vieweg, 2018, pp. 387–394
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Schuster, Johannes ; Dellermann, Dominik ; Lipusch, Nikolaus ; Kohler, Thomas:How to Design a Crowdwork Platform.. In: Social Science Research Network (SSRN), 2018
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Bieshaar, M.:Where is my Device? Detecting the Smart Device’s Wearing Position in the Context of Active Safety for Vulnerable Road Users.. In: Tomforde, S. ; Sick, B. (eds.): Organic Computing: Doctoral Dissertation Colloquium : Kassel University Press, 2018
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Bieshaar, M. ; Depping, M. ; Schneegans, J. ; Sick, B.:Starting Movement Detection of Cyclists Using Smart Devices.. In: DSAA. Turin, Italy, 2018
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Bläsing, L. M. ; Götschel, H: Das Fachgebiet Gender MINT an der Hochschule Hannover. Lehrangebot für vielfältige Studierendengruppen wahrnehmbar attraktiver gestalten. In: Die Ingenieurin vol. 125 (2018), Nr. 2, pp. 11–14
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Gruhl, Christian ; Tomforde, Sven ; Sick, Bernhard:Aspects of Measuring and Evaluating the Integration Status of a (Sub-)System at Runtime.. In: 2018 IEEE 3rd International Workshops on Foundations and Applications of Self* Systems (FAS*W), Trento, Italy, September 3-7, 2018, 2018, pp. 198–203
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Bieshaar, M. ; Zernetsch, S. ; Hubert, A. ; Sick, B. ; Doll, K.: Cooperative Starting Movement Detection of Cyclists Using Convolutional Neural Networks and a Boosted Stacking Ensemble. In: IEEE Transactions on Intelligent Vehicles vol. 3 (2018), Nr. 4
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Sick, Bernhard ; Oeste-Reiß, Sarah ; Schmidt, Albrecht ; Tomforde, Sven ; Zweig, Katharina Anna: Collaborative Interactive Learning. In: Informatik Spektrum vol. 41 (2018), Nr. 1, pp. 52–55
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Hanika, Tom ; Kibanov, Mark ; Kropf, Jonathan ; Laser, Stefan:„Ich denke, es ist wichtig zu verstehen, warum die Netzwerkanalyse jetzt populär und besonders interessant für die Forschung geworden ist.“.. In: Kropf, J. ; Laser, S. (eds.): Digitale Bewertungspraktiken. Für eine Bewertungssoziologie des Digitalen. Wiesbaden : Springer, 2018, pp. 165–188
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Schaller, Fabian:Öffentlicher Bereich.. In: Roßnagel, A. (ed.): Das neue Datenschutzrecht Europäische Datenschutz-Grundverordnung und deutsche Datenschutzgesetze. Baden-Baden : Nomos, 2018, pp. 270–281
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Müller, J.: IUNO: Erfolgreicher Abschluss des Referenzprojekts IT Sicherheit in Industrie 4.0. In: ZD-Aktuell (2018), Nr. 16, p. 06290
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Blohm, Ivo ; Zogaj, Shkodran ; Bretschneider, Ulrich ; Leimeister, Jan Marco: How to Manage Crowdsourcing Platforms Effectively?. In: California Management Review (CMR) vol. 60 (2018), Nr. 2, pp. 122–149
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To profit from crowdsourcing, organizations can engage in four different approaches: microtasking, information pooling, broadcast search, and open collaboration. This article presents 21 governance mechanisms that can help organizations manage their crowdsourcing platforms. It investigates the effectiveness of these governance mechanisms in 19 case studies and recommends specific configurations of these mechanisms for each of the four crowdsourcing approaches. Also, it offers guidance to organizations that host a crowdsourcing platform by providing recommendations for implementing governance mechanisms into their platforms and building up governance capabilities for crowdsourcing.
Müller, Johannes:Auskunfteien, Bonitätsauskünfte, Scoring.. In: Roßnagel, A. (ed.): Das neue Datenschutzrecht – Europäische Datenschutz-Grundverordnung und deutsche Datenschutzgesetze. Baden-Baden : Nomos, 2018, pp. 385–396
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Entgrenzungen des Konsums. Dokumentation der Jahreskonferenz des Netzwerks Verbraucherforschung.. In: Kenning, P. ; Lamla, J. (eds.): , 2018
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Seipp, Ann-Kathrin ; Schmitt, Antje ; Ohly, Sandra:Energy at work: A Meta-Analytic Approach to Human Energy Conceptualization and Work-Related Concepts.. In: Teoh, K. ; Saade, N. ; Dediu, V. ; Hassard, J. ; Torres, L. (eds.): Poster presentation at the 13th European Academy of Occupational Health Psychology Conference, Lisbon, 2018, p. 446
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2017[ to top ]

Kolloch, Michael ; Dellermann, Dominik: Digital Innovation in the Energy Industry: The Impact of Controversies on the Evolution of Innovation Ecosystems. In: Technological Forecasting & Social Change (2017)
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Kounev, Samuel ; Lewis, Peter ; Bellman, Kirstie L ; Bencomo, Nelly ; Camara, Javier ; Diaconescu, Ada ; Esterle, Lukas ; Geihs, Kurt ; et al.:The Notion of Self-aware Computing.. In: Self-Aware Computing Systems : Springer, 2017, pp. 3–16
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Johannes, Paul C.:Wissenschaft und Forschung.. In: Roßnagel, A. (ed.): Europäische Datenschutz-Grundverordnung, Vorrang des Unionsrechts – Anwendbarkeit des nationalen Rechts. Baden-Baden : Nomos, 2017, pp. 233–244
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Knote, Robin ; Söllner, Matthias:Towards Design Excellence for Context-Aware Services - The Case of Mobile Navigation Apps.. In: 13th International Conference on Wirtschaftsinformatik (WI). St. Gallen, Switzerland, 2017
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To satisfy service customers and create unique value in a digitized world, companies must strive for exceeding customers’ expectations of e-service experience by establishing high e-service quality. However, an increasing amount of e-services is performed by context-aware mobile technology, which is able to sense and react to changes in the user’s environment. Although these context-aware services are able to address our personal needs and already determine our everyday live, knowledge on how to develop such services is sparse. In our study, we qualitatively compare three mobile navigation apps based on their user reviews in order to elicit first requirements and design approaches for e-service quality oriented design. Results show that well known e-service quality models are not fully applicable to the case of mobile navigation services.
Schöbel, Sofia:About the Relevance of User Preferences in the Development of Gamification Approaches.. In: European Conference on Information Systems (ECIS), Doctoral Consortium. Guimarães, Portugal, 2017
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Kogga, Damian ; Krawietz, Nicole ; Cevik, Fatih ; Brandau, Sven ; Li, Mahei Manhai:Design Prinzipien für Microlearning Crowdsourcing-Systeme - Konzept für audiovisuelle Mediengestaltung.. In: Leimeister, J. M. ; Brenner, W. (eds.): 13th International Conference on Wirtschaftsinformatik (WI). St. Gallen, Switzerland, 2017
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Lamla, Jörn ; Ochs, Carsten:Der NSA-Skandal als Krise der Demokratie? Selbstreflexionen der Öffentlichkeit in der Privacy-Arena.. In: Hahn, K. ; Langenohl, A. (eds.): Kritische Öffentlichkeiten – Öffentlichkeiten in der Kritik. Wiesbaden : Springer, 2017, pp. 83–112
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Johannes, Paul C.:Grundrechtecharta und Grundgesetz.. In: Roßnagel, A. (ed.): Europäische Datenschutz-Grundverordnung, Vorrang des Unionsrechts – Anwendbarkeit des nationalen Rechts. Baden-Baden : Nomos, 2017, pp. 78–86
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Janson, Andreas ; Söllner, Matthias:How Technology-Enhanced Scaffolding Contributes to Problem-Solving Outcomes in Management Education.. In: Academy of Management Annual Meeting (AOM). Atlanta, Georgia, USA, 2017
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Janson, Andreas ; Söllner, Matthias ; Leimeister, Jan Marco: Individual Appropriation of Learning Management Systems—Antecedents and Consequences. In: AIS Transactions on Human-Computer Interaction vol. 9 (2017), Nr. 3, pp. 173–201
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IT support in the learning process constitutes a key factor for the success of innovative teaching/learning scenarios. To ensure learning success in innovative teaching/learning scenarios, learners need to faithfully apply learning management systems (LMS). However, we lack theoretical insights into which factors affect whether they do so. To help solve this issue, we first used adaptive structuration theory to identify antecedents and consequences regarding faithful LMS appropriation and embed them into a theoretical model. Second, we conducted a survey study with 173 participants to evaluate the model. The results show that the perceived IT support, interactivity, and the tasktechnology fit significantly affect the degree to which learners faithfully apply a LMS. Moreover, the results indicate that faithful appropriation is a significant indicator of the learning process satisfaction as well as perceived learning success. The present paper thus theoretically contributes to the scientific discussion concerning technology
Lehmann, Katja ; Leimeister, Jan Marco: Kompetenzvermittlung in teilnehmerstarken Lehrveranstaltungen unter Verwendung von formativem Peer Assessment. In: Berendt, D. B. ; Fleischmann, D. A. ; Schaper, P. D. N. ; Szczyrba, D. B. ; Wildt, P. D. D. h.c. J. (eds.) Neues Handbuch Hochschullehre. Berlin, DUZ Verlags- und Medienhaus GmbH (2017)
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Dieser Beitrag zeigt, wie Studierende mit Hilfe von Peer Assessment auch in teilnehmerstarken Lehrveranstaltungen konkretes Feedback zu ihrem individuellen Lernstand bekommen können. Am Beispiel einer Grundlagenvorlesung im Fach Wirtschaftsinformatik erklären wir den Einsatz von Peer Assessment mit Hilfe der Lernplattform „Moodle“ und zeigen auf, wie es uns gelungen ist, damit in einer Massenvorlesung Interaktion und Kompetenzerwerb zu fördern. Darüber hinaus geben wir, basierend auf den Rückmeldungen der Studierenden und unseren eigenen Erfahrungen, Empfehlungen für die praktische Umsetzung.
Schöbel, Sofia ; Janson, Andreas ; Ernst, Sissy-Josefina ; Leimeister, Jan Marco:How to Gamify a Mobile Learning Application – A Modularization Approach.. In: International Conference on Information Systems (ICIS). Seoul, South Korea, 2017
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Kopal, Nils ; Heck, Henner ; Wacker, Arno: Simulating Cheated Results Acceptance Rates for Gossip-Based Volunteer Computing. In: International Journal of Mobile Network Design and Innovation vol. 7, Inderscience Publishers (IEL) (2017), Nr. 1, pp. 56–67
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Kopal, Nils ; Wander, Matthäus ; Konze, Christopher ; Heck, Henner:Adaptive Cheat Detection in Decentralized Volunteer Computing with Untrusted Nodes.. In: IFIP International Conference on Distributed Applications and Interoperable Systems (DAIS), Lecture Notes in Computer Science : Springer, 2017, pp. 192–205
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Lehmann, Katja ; Söllner, Matthias ; Blohm, Ivo ; Leimeister, Jan Marco:Third Time is a Charm – Determining the Required Number of Assessors when Using Peer Assessment in Large-Scale Lectures.. In: International Conference on Information Systems (ICIS). Seoul, South Korea, 2017
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Although peer assessment is a widely used didactical method in higher education, little is known about a) how many peer assessors are required to receive a stable assessment on a peer’s solution and b) how valid this assessment is compared to an expert assessment. To fill these gaps, we conducted a peer assessment in a large-scale lecture. Overall, 136 students participated in the peer assessment. Each student had to complete an assignment, which was then anonymously evaluated by five randomly selected peers, and three independent experts. We applied a bootstrap-based Monte Carlo simulation based on our data. The results show that a) three peer assessors are sufficient for a stable assessment, and b) the peer assessors are less critical compared to experts. We thus contribute to literature by providing insights on how many peer assessors are required when applying peer assessment, and how comparable peer assessment is with expert assessment.
Atzmueller, Martin ; Hayat, Naveed ; Schmidt, Andreas ; Klöpper, Benjamin:Explanation-Aware Feature Selection using Symbolic Time Series Abstraction: Approaches and Experiences in a Petro-Chemical Production Context.. In: Proc. IEEE International Conference on Industrial Informatics (INDIN). Boston, MA, USA : IEEE Press, 2017
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Knote, Robin ; Söllner, Matthias ; Leimeister, Jan Marco:Towards Requirement Patterns for Smart Physical Work Assistants.. In: International Workshop on Requirements Patterns (RePa’ 17). Lisbon, Portugal, 2017
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Janson, Andreas ; Söllner, Matthias ; Leimeister, Jan Marco:The Impact of Procedural Scaffolding on Mobile Learning Outcomes.. In: Academy of Management Annual Meeting (AOM). Atlanta, Georgia, USA, 2017
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Mobile learning, offering anytime and anywhere learning, is becoming increasingly important in various areas such as the training of blue-collar workers in organizations. However, mobile learning may overwhelm the learner since it is often used in rich physical environments and demands a high self-regulated learning ability. Therefore, research suggests the use of procedural scaffolds to guide the learner and to enhance learning outcomes. To investigate how different procedural scaffolds contribute to learning outcomes, we conducted a between-subject quasiexperiment with 333 Chinese blue-collar workers. Our results show that comprehensive tutorials at the beginning of the learning process have a positive influence on learning outcomes in contrast to instructional overlays during the learning process as well as a combination of both scaffolds. Consequently, we did not observe that procedural scaffolds per se have a positive impact on learning outcomes, but the right scaffold in the right context has the potential to increase learning outcomes.
Knop, Nicolas ; Durward, David ; Blohm, Ivo:How to Design an Internal Crowdsourcing System.. In: International Conference on Information Systems (ICIS). Seoul, South Korea, 2017
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Kunz, Michael Marcin ; Englisch, Oliver ; Bretschneider, Ulrich:Build your city! - Engaging citizens in crowdfunding projects.. In: European Conference on Information Systems (ECIS). Guimarães, Portugal, 2017
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Laubach, A. ; Maass, M. ; Herrmann, D.:PrivacyScore: Analyse von Webseiten auf Sicherheits- und Privatheitsprobleme – Konzept und rechtliche Zulässigkeit.. In: Eibl, M. ; Gaedtke, M. (eds.): Eibl, M./ Gaedtke, M. (Hrsg.), INFORMATIK 2017 GI-Tagungsband – Lecture Notes in Informatics (LNI). Bonn, 2017, pp. 1049–1060
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Johannes, Paul C.:Archivierung.. In: Roßnagel, A. (ed.): Europäische Datenschutz-Grundverordnung, Vorrang des Unionsrechts – Anwendbarkeit des nationalen Rechts. Baden-Baden : Nomos, 2017, pp. 254–263
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Kleinschmidt, Stefan ; Peters, Christoph ; Leimeister, Jan Marco:Towards ICT-Enabled Service Business: A Design Theory for Human-Centered Service Systems.. In: 2. Jahrestagung der Wissenschaftlichen Kommission Dienstleistungsmanagement (WK DLM) des Verbands der Hochschullehrer für Betriebswirtschaft e.V.. Leipzig, Germany, 2017
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Kleinschmidt, Stefan ; Peters, Christoph ; Leimeister, Jan Marco:Achieving scalability of human-centered service systems: Insights from the active and assisted living context.. In: International Research Symposium on Advancing Service Research and Practice (QUIS). Porto, Portugal, 2017
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Kleinschmidt, Stefan ; Peters, Christoph:Towards an integrated evaluation of human-centered service systems and corresponding business models: A systems theory perspective.. In: European Conference on Information Systems (ECIS). Guimarães, Portugal, 2017
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Kleinschmidt, Stefan ; Peters, Christoph:Fostering business model extensions for ICT-enabled human-centered service systems.. In: 13th International Conference on Wirtschaftsinformatik (WI). St. Gallen, Switzerland, 2017
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Sick, Bernhard ; Oeste-Reiß, Sarah ; Schmidt, Albrecht ; Tomforde, Sven ; Zweig, Katharina Anna: Collaborative Interactive Learning (Aktuelles Schlagwort). In: Informatik Spektrum vol. 41, Springer (2017), Nr. 1 — ISBN 0170-6012
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Simmert, Benedikt ; Ebel, Philipp ; Bittner, Eva Alice Christiane ; Peters, Christoph:Systematic and Continuous Business Model Development: Design of a Repeatable Process Using the Collaboration Engineering Approach.. In: 13th International Conference on Wirtschaftsinformatik (WI). St. Gallen, Switzerland, 2017
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Atzmueller, Martin ; Arnu, David ; Schmidt, Andreas:Anomaly Detection and Structural Analysis in Industrial Production Environments.. In: Proc. International Data Science Conference (IDSC 2017). Salzburg, Austria, 2017
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Atzmueller, Martin ; Arnu, David ; Schmidt, Andreas:Anomaly Analytics and Structural Assessment in Process Industries.. In: Proc. Annual Machine Learning Conference of the Benelux (Benelearn 2017). Eindhoven, The Netherlands : Eindhoven University of Technology, 2017
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Atzmueller, Martin ; Becker, Martin ; Mueller, Juergen:Collective Sensing Platforms.. In: Loreto, V. ; Haklay, M. ; Hotho, A. ; Servedio, V. D. ; Stumme, G. ; Tria, F. ; Theunis, J. (eds.): Participatory Sensing, Opinions and Collective Awareness. Heidelberg, Germany : Springer Verlag, 2017
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Johannes, P. C.: Der BDSG-Entwurf und das Mysterium der „23“. In: ZD-Aktuell (2017), Nr. 5, p. 05533
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Johannes, P. C.: Die Gegenüberstellung – Der Datenschutzbeauftragte nach DS-GVO, JI-Richtlinie und zukünftigem BDSG. In: ZD-Aktuell (2017), Nr. 17, p. 05794
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Johannes, P. C.: Radar: Neues Sicherheitssystem soll Gefährder bewerten. In: ZD-Aktuell (2017), Nr. 3, p. 05491
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Kieselmann, Olga ; Wacker, Arno ; Schiele, Gregor:k-rAC – a Fine-Grained k-Resilient Access Control Scheme for Distributed Hash Tables.. In: Proceedings of the 12th International Conference on Availability, Reliability and Security, ARES ’17, Reggio Calabria, Italy. New York, NY, USA : ACM, 2017 — ISBN 978-1-4503-5257-4/17/08, pp. 43:1–43:10
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Distributed Hash Tables (DHT) are a common architecture for decentralized data management. However, currently existing DHTs allow every participant to access any index. To build secure applications, we need to control this access. In this paper, we present k-rAC, a fine-grained access control for DHTs. It allows to specify and enforce different access rights for each individual data item in the presence of attackers and up to $$k$$ subverted participants. Our approach can be tailored towards different thread levels and usage scenarios by adapting k and by choosing one of three authentication mechanisms that we provide.
Johannes, P. C.: Gegenüberstellung – Der Datenschutzbeauftragte nach DS-GVO, JI-Richtlinie und zukünftigem BDSG. In: ZD (2017), Nr. 12, pp. 8–12
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Johannes, P. C.: Muskat: Projekt zur verbesserten Videoüberwachung abgeschlossen. In: ZD-Aktuell (2017), Nr. 21, p. 05898
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Atzmueller, Martin:Community Detection and Analysis on Attributed Social Networks.. In: Encyclopedia of Social Network Analysis and Mining. Heidelberg, Germany : Springer, 2017
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Atzmueller, Martin:Exceptional Model Mining in Ubiquitous and Social Environments.. In: Proc. Annual Machine Learning Conference of the Benelux (Benelearn 2017). Eindhoven, The Netherlands : Eindhoven University of Technology, 2017
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Atzmueller, Martin:Onto Explicative Data Mining: Exploratory, Interpretable and Explainable Analysis.. In: Proc. Dutch-Belgian Database Day : TU Eindhoven, Netherlands, 2017
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Johannes, P. C.: Die Gegenüberstellung – Allgemeine Grundsätze der Datenverarbeitung nach neuem BDSG, DS-GVO und JI-Richtlinie. In: ZD-Aktuell (2017), Nr. 15, p. 05757
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Schöbel, Sofia ; Ernst, Sissy-Josefina ; Söllner, Matthias ; Leimeister, Jan Marco:More than the Sum of its Parts – Towards Identifying Preferred Game Design Element Combinations in Learning Management Systems.. In: International Conference on Information Systems (ICIS). Seoul, South Korea, 2017
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Kunz, Michael Marcin ; Bretschneider, Ulrich ; Erler, Max ; Leimeister, Jan Marco: An Empirical Investigation of Signaling in Reward-Based Crowdfunding. In: Electronic Commerce Research vol. 17 (2017), Nr. 3, pp. 425–461
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Start-ups often face the challenge of a shortage of capital, the so-called funding gap, which can be overcome by raising small amounts of money from a large number of individuals. As crowdfunding suffers from a continuous rise in failure rates, the aim of this article is to contribute to the research concerning success factors in reward-based crowdfunding campaigns by focusing on signaling theory. Based on data retrieved from the crowdfunding platform Kickstarter, our results indicate that social ties, investment preparation and presentation, the supply of multiple rewards as well as endeavors to communicate and interact with the crowd positively influence the probability of success of a reward-based crowdfunding campaign. In contrast, the funding goal, a campaign’s runtime and the estimated time of delivery for the rewards have a negative impact on the successful completion of a campaign.
Knoell, Daniel ; Atzmueller, Martin ; Rieder, Constantin ; Scherer, Klaus Peter:A Scalable Framework for Data-Driven Ontology Evaluation.. In: Proc. GWEM 2017, co-located with 9th Conference Professional Knowledge Management (WM 2017). Karlsruhe, Germany : KIT, 2017
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Krcmar, H. ; Eckert, C. ; Roßnagel, A. ; Sunyaev, A. ; Wiesche, M. (eds.):Management sicherer Cloud-Services - Entwicklung und Evaluation dynamischer Zertifikate : Springer, 2017 — ISBN 978-3-658-19579-3
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Johannes, P. C.: Unterschiede in der Datenschutz-Folgenabschätzung für Polizei und Strafverfolgungsbehörden nach europäischem und deutschem Recht. In: ZD-Aktuell (2017), Nr. 19, p. 05852
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Johannes, P. C.: Bundesrat stimmt neuem BDSG zu. In: ZD-Aktuell (2017), Nr. 9, p. 05626
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Johannes, Paul Christopher: Forschungsdatenmanagement in der Rechtswissenschaft – Eine Betrachtung von außen nach innen. In: Die öffentliche Verwaltung vol. 21 (2017), Nr. 70, pp. 899–906
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Kroll, Dennis ; David, Klaus:Measuring the Capability of Smartphones for Executing Context Algorithms.. In: Eibl, M. ; Gaedke, M. (eds.): INFORMATIK 2017. Bonn, Germany : Gesellschaft für Informatik, 2017, pp. 1591–1596
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While the rise of context aware apps remains, the question arises whether algorithms for context processing can be applied to any smartphone and for any user. In this paper, we propose to test context algorithms for each specific smartphone, user, and situation to which a context algorithm is applied. Towards this, we present our framework which automatically measures all relevant information about an app's runtime properties, i.e. resource utilization and the time taken to process sensor values by a context algorithm. Both information can be automatically returned to the app developers in order to improve the app. We implemented the framework on Android and tested it using the example of a state-of-the-art context algorithm to find out whether our test smartphone is capable of running the context algorithm without delays and deadlocks.
Johannes, Paul Christopher ; Richter, Philipp: Privilegierte Verarbeitung im BDSG-E – Regeln für Archivierung, Forschung und Statistik. In: Datenschutz und Datensicherheit vol. 41 (2017), Nr. 5, pp. 300 – 305
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Schöbel, Sofia ; Söllner, Matthias ; Mishra, Abhay Nath:Does the Winner Take it All? Towards an Understanding of why there might be no One-Size-Fits-All Gamification Design.. In: European Conference on Information Systems (ECIS). Guimarães, Portugal, 2017
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Johannes, P. C.: Bundestag: Gesetz zum Abbau der Schriftform im Verwaltungsrecht des Bundes beschlossen. In: ZD-Aktuell (2017), Nr. 3, p. 05489
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Kropf, Jonathan: Der Wert der Musik: Aushandlungsdynamiken in der digitalisierten Musikwirtschaft. In: kommunikation@gesellschaft vol. 18 (2017), Nr. 8
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Kanawati, Rushed ; Atzmueller, Martin: Mining Attributed Networks (2017)
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Johannes, P. C.: LiDaKrA: BKA und LKA Hessen testen neues Internet-Analysetool. In: ZD-Aktuell (2017), Nr. 12, p. 05663
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Karaboga, Murat ; Matzner, Tobias ; Obersteller, Hannah ; Ochs, Carsten:Is There a Right to Offline-Alternatives in a Digital World?. In: Leenes, R. ; van Brakel, R. ; Gutwirth, S. ; De Hert, P. (eds.): Protection and Privacy: (In)visibilities and Infrastructures. Cham/Switzerland : Springer, 2017, pp. 31–57
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Seeger, M. ; Stein, T. ; Schmidt, L.:Vibrotaktile Wahrnehmung bei der Verwendung von Handschuhen.. In: Burghardt, M. ; Wimmer, R. ; Wolff, C. ; Womser-Hacker, C. (eds.): Mensch und Computer 2017 - Tagungsband (Regensburg 2017). Bonn : Gesellschaft für Informatik e. V, 2017, pp. 159–170
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Touchscreens werden zunehmend im industriellen Arbeitsumfeld bei Tätigkeiten eingesetzt, bei denen Handschuhe getragen werden, wodurch die Interaktion mit einem Touchscreen eingeschränkt wird. Um eine vibrotaktile Rückmeldung von Touchscreens beim Tragen von Handschuhen einzusetzen, wurde in einem ersten Schritt mit 47 Versuchsteilnehmern und 8265 Einzelmessungen die vibrotaktile Wahrnehmungsschwelle auf einem Touchscreen in Abhängigkeit der Frequenz, Stimulusdauer und Handschuhstärke ermittelt. Die Ergebnisse zeigen eine Frequenzabhängigkeit der Wahrnehmungsschwelle im Bereich von 50 bis 250 Hz sowie die Abnahme bei zunehmender Stimulusdauer. Weiterhin zeigt sich, dass für die Gestaltung einer vibrotaktilen Rückmeldung die Handschuhstärke nicht explizit berücksichtigt werden muss, da mit zunehmender Handschuhstärke die Kraft auf die Oberfläche zunimmt und keine Veränderung der Wahrnehmungsschwelle beobachtet werden konnte.
Seipp, Ann-Kathrin ; Ohly, Sandra ; Duranova, Lenka ; Schmitt, Antje ; Braukmann, Johanna:Methodological issues of surveys on information and communication technology (ICT) use after work.. In: Proceedings of the 18th EAWOP Congress 2017 - Enabling Change through Work and Organizational Psychology, 2017, p. 1825
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Purpose: Work-related ICT use after work is an emerging topic in work and organizational psychology. There are different delivery modes for surveys. It is unclear whether online methodology influences survey results. Particularly, do online questionnaires initiate or prolong work-related ICT use after work? To answer this question, we tested if the delivery mode influences the incidents and length of workrelated ICT use after work. Design/Methodology: We used a diary study with 167 German knowledge workers. Data were collected on 7 consecutive working days in the evening before bedtime either online via ICT devices (smartphone, tablet etc.) or via paper pencil surveys, asking for total time of workrelated ICT use and the ICT device used. The paper-pencil survey was used as control group (n=16) to identify the impact of delivery mode. Results: Independent t-tests showed no significant influence of delivery mode. Using ICT to collect data did not result in longer work-related ICT use compared to paper-pencil measurement. Additionally, it did not affect which ICT devices were used. Limitations: Results cannot be generalised to additional outcomes as we only tested the impact of delivery mode on work-related ICT use. Research/Practical Implications: The results show that researchers interested in ICT use after work do not need to fear method artefacts. It enables researchers to renounce the use of effortful paper-pencil surveys and encourages them to use less demanding ICT as delivery mode. Originality/Value: To our knowledge, previous research did not analyse the impact of delivery mode on ICT use after work.
Seipp, Ann-Kathrin ; Schmitt, Antje:Human energy at work - a meta analytic approach to discover its nomological network.. In: In Human Performance in Socio-Technical Systems: 10. Tagung der Fachgruppe Arbeits-, Organisations- und Wirtschaftspsychologie (AOW) der Deutschen Gesellschaft für Psychologie (DGPs). Dresden, Germany, 2017
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Klose, E. M. ; Eis, A. ; Hegenberg, J. ; Schmidt, L.:Augmented-Reality-Indoornavigation mit Datenbrillen.. In: Burghardt, M. ; Wimmer, R. ; Wolff, C. ; Womser-Hacker, C. (eds.): Mensch und Computer 2017 - Tagungsband (Regensburg 2017). Bonn : Gesellschaft für Informatik e. V, 2017, pp. 255–258
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In diesem Beitrag wird die Realisierung einer Versuchsumgebung beschrieben, die bei einem guten Verhältnis von Kosten, Aufwand und Genauigkeit eine Indoorlokalisierung mit Bluetooth-Low-Energy-Beacons ermöglicht. Es wird eine prototypische Indoornavigation mit einer Durchsichtdatenbrille vorgestellt, die dem Nutzer kontaktanaloge Navigationsanweisungen in 3-D entlang seines Zielpfades einblendet. Eine Nutzerevaluation zeigt, dass insbesondere die händefreie Interaktion als nützlich angesehen wird und die Gestaltung einer Augmented-Reality-Indoornavigation Ungenauigkeiten bei der Lokalisierung besonders berücksichtigen sollte, wenn relativ enge Wege genutzt werden.
Klose, E. ; Eis, A. ; Hegenberg, J. ; Schmidt, L.:Nutzeranforderungen an ein adaptiv lernendes Reiseassistenzsystem für Datenbrillen.. In: Gesellschaft für Arbeitswissenschaft e. V. (ed.): Soziotechnische Gestaltung des digitalen Wandels - kreativ, innovativ, sinnhaft: 63. Kongress der Gesellschaft für Arbeitswissenschaft (Brugg-Windisch 2017). Dortmund : GfA-Press, 2017, pp. 1–6 (F.1.13)
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Für die Entwicklung eines persönlichen, adaptiv lernenden Reiseassistenzsystems (RAS) für den öffentlichen Verkehr auf Basis von Augmented Reality wurde in der Anforderungsanalyse ein Mixed-Methods-Ansatz mit Fokusgruppen (n = 40) und einer Online-Befragung (n = 311) gewählt. Die Ergebnisse zeigen, dass ein Großteil der Nutzer sich vorstellen kann, ein RAS zu nutzen, viele bei der Verwendung von Datenbrillen und Sprachinteraktion im öffentlichen Raum jedoch Bedenken haben. Als wichtigste Funktionen eines RAS werden die Unterstützung im Störungsfall, die Fußgängernavigation sowie die Versorgung mit Informationen zur Reisekette angesehen.
Atzmueller, Martin:Descriptive Community Detection.. In: Missaoui, R. ; Obiedkov, S. ; Kuznetsov, S. (eds.): Formal Concept Analysis in Social Network Analysis. Berlin/Heidelberg, Germany : Springer Verlag, 2017
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Dellermann, Dominik ; Fliaster, Alexander ; Kolloch, Michael: Lost Energy? Managing Co-Innovation Risk of Digital Business Models. In: Journal of Business Strategy (2017)
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Janson, Andreas ; Peters, Christoph ; Leimeister, Jan Marco:The Efficient Provision of Culture-Sensitive Services: A Modularization Approach.. In: Sawatani, Y. ; Spohrer, J. ; Kwan, S. ; Takenaka, T. (eds.): Serviceology for Smart Service System. Tokyo, Japan : Springer, 2017, pp. 147–157
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Niemczyk, Stefan ; Opfer, Stephan ; Fredivianus, Nugroho ; Geihs, Kurt:ICE – Self-Configuration of Information Processing in Heterogeneous Agent Teams.. In: Proceedings of 12th Dependable, Adaptive, and Trustworthy Distributed Systems (DADS ’17). Marakesh, Marocco, 2017
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Geminn, Christian ; Richter, Philipp:Telekommunikation.. In: Roßnagel, A. (ed.): Europäische Datenschutz-Grundverordnung, Vorrang des Unionsrechts – Anwendbarkeit des nationalen Rechts. Baden-Baden : Nomos, 2017, pp. 276–290
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Geminn, Christian ; Richter, Philipp:Telemedien.. In: Roßnagel, A. (ed.): Europäische Datenschutz-Grundverordnung, Vorrang des Unionsrechts – Anwendbarkeit des nationalen Rechts. Baden-Baden : Nomos, 2017, pp. 290–301
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Geminn, Christian ; Nebel, Maxi:Internationalisierung vs. Nationalisierung im Zeitalter der digitalen Gesellschaft. Wege aus einer Krise des Rechts und der Demokratie.. In: Friedewald, M. ; Lamla, J. ; Roßnagel, A. (eds.): „Informationelle Selbstbestimmung im digitalen Wandel“, DuD-Fachbeiträge. Wiesbaden, 2017, pp. 287–318
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Roßnagel, Alexander ; Hentschel, Anja ; Emanuel, Florian: - Atomausstieg ist verfassungsgemäß – Zur Steuerung von Hochrisikotechnologien in einer demokratischen Gesellschaft. In: Umwelt- und Planungsrecht (UPR) (2017), pp. 128 – 133
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Borchmann, Daniel ; Hanika, Tom:Individuality in Social Networks.. In: Missaoui, R. ; Kuznetsov, S. O. ; Obiedkov, S. (eds.): Formal Concept Analysis of Social Networks. Cham : Springer International Publishing, 2017 — ISBN 978-3-319-64167-6, pp. 19–40
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We consider individuality in bi-modal social networks, a facet that has not been considered before in the mathematical analysis of social networks. We use methods from formal concept analysis to develop a natural definition for individuality, and provide experimental evidence that this yields a meaningful approach for additional insights into the nature of social networks.
Borchmann, Daniel ; Hanika, Tom ; Obiedkov, Sergei:On the Usability of Probably Approximately Correct Implication Bases.. In: Bertet, K. ; Borchmann, D. ; Cellier, P. ; Ferré, S. (eds.): Formal Concept Analysis - 14th International Conference, ICFCA 2017, Rennes, France, June 13-16, 2017, Proceedings, Lecture Notes in Computer Science. vol. 10308 : Springer, 2017 — ISBN 978-3-319-59271-8, pp. 72–88
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Nguyen, The An Bingh ; Meurisch, Christian ; Niemczyk, Stefan ; Böhnstedt, Doreen ; Geihs, Kurt ; Mühlhäuser, Max ; Steinmetz, Ralf:Adaptive Task-Oriented Message Template for In-Network Processing.. In: Proceedings of the International GI/ITG Conference on Network Systems (NetSys 2017). Göttingen, Germany, 2017
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Nguyen, Xuan Thang ; Tran, Huu Tam ; Baraki, Harun ; Geihs, Kurt: Optimization of Non-functional Properties in Internet of Things Applications. In: Journal of Network and Computer Applications, Elsevier (2017)
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Geminn, C. ; Fhom, H. S. ; Friedewald, M. ; Heesen, J. ; Hess, T. ; Kreutzer, M. ; Neubaum, G. ; Ochs, C.:Datensparsamkeit oder Datenreichtum? – Zur neuen politischen Diskussion über den datenschutzrechtlichen Grundsatz der Datensparsamkeit, Policy Paper, Schriftenreihe Forum Privatheit und selbstbestimmtes Leben in der digitalen Welt. Karlsruhe : Fraunhofer ISI, 2017
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Geminn, C.: „ヨーロッパデータ保護一般規則 : EUにおける新たなデータ保護の規律の客観的考察“ (dt.: Die Europäische Datenschutz-Grundverordnung – Eine kritische Betrachtung der neuen Datenschutzregeln in der Europäischen Union). In: 自治研究 (Jichi kenkyū, Forschung zur Selbstverwaltung) (2017), Nr. 3, pp. 3–23
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Niemczyk, Stefan ; Fredivianus, Nugroho ; Geihs, Kurt:On-the-Fly Transformation Synthesis for Information Sharing in Heterogeneous Multi-Agent Systems.. In: Proceedings of Intelligent Robotics and Multi-Agent Systems (IRMAS ’17). Marakesh, Marocco, 2017
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Braukmann, Johanna ; Schmitt, Antje ; Duranova, Lenka ; Ohly, Sandra:Work-related ICT events in the evening and work-home conflict – the role of perceived organizational expectations.. In: Proceedings of the 18th EAWOP Congress 2017 - Enabling Change through Work and Organizational Psychology, 2017, p. 2010
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Purpose Within the framework of Boundary Theory (Ashforth et al., 2000), various studies show how intense work-related ICT use after hours is related to a higher work-home conflict. In this study, we hypothesized that this relationship will be moderated by organizational expectations regarding a) ICT availability, b) ICT response time and 3) time sacrifices at home (organizational time demands). Design/Methodology Within a diary study with 104 German employed knowledge workers, cross-level interaction effects between ICT-related events in the evening (“work emails”, “work calls”, “finishing tasks”) and organizational expectations on work-home conflict were analyzed with HLM. Results Interaction effects were significant only for work emails, showing that when perceived ICT response expectations or organizational time demands are high, work emails are related to a higher work-home conflict compared to low perceived expectations. Effects were stable when controlled for time pressure, working hours and duration of ICT use. Limitations We relied on subjective measures of organizational expectations at an individual level. Research/Practical Implications Our study shows that organizational expectations are a meaningful factor that may determine if work emails are related to work-home conflict experiences or not. Employers should raise awareness for potentially implicit organizational expectations and optimize their “email culture”. Originality/Value This study contributes to literature by operationalizing different purposes of ICT use beyond its mere duration. Compared to other studies, it focuses on injunctive as opposed to descriptive organizational norms (Cialdini et al., 1991) and shows that the role of organizational expectations varies for different forms of ICT use.
Geminn, Christian Ludwig: Risikoadäquate Regelungen für das Internet der Dienste und Dinge?. In: Datenschutz und Datensicherheit vol. 41 (2017), Nr. 5, pp. 295–299
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Ochs, Carsten: Demokratische Privacy by Design: Kriterien soziotechnischer Gestaltung von Privatheit. In: Forschungsjournal Soziale Bewegungen vol. 30 (2017), Nr. 2, pp. 189–199
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Braun, S.:„Intelligentes Energiemanagement im Unternehmen – Rechtliche Anforderungen aus Sicht des Datenschutzes“.. In: Taeger, J. (ed.): RECHT 4.0 – Innovationen aus den rechtswissenschaftlichen Laboren, Tagungsband DSRI Herbstakademie. Edewecht, 2017
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Braun, S.: GeopNu: Neues Forschungsprojekt zur Nutzeridentifikation im Gebäudebetrieb. In: ZD-Aktuell (2017), Nr. 5, p. 05529
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Ochs, Carsten:Kulturtechnik, Praxis, Programm: Begriffsinventar zur Erforschung der Anthropo-Logik der Digitalisierung.. In: Koch, G. (ed.): Digitalisierung. Theorien und Konzepte für die empirische Forschung. Konstanz/ München : UVK, 2017, pp. 21–54
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Ochs, Carsten:Privacies in Practice.. In: Bergermann, U. ; Dommann, M. ; Schüttpelz, E. ; Stolow, J. (eds.): Connect & Divide: The Practice Turn in Media Studies. 3rd Media Studies Symposion of the German Research Foundation 2015. Zürich : Diaphanes, 2017
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Gautama, Sidharta ; Atzmueller, Martin ; Kostakos, Vasillis ; Gillis, Dominique ; Hosio, Simo:Observing Human Activity Through Sensing.. In: Loreto, V. ; Haklay, M. ; Hotho, A. ; Servedio, V. D. ; Stumme, G. ; Tria, F. ; Theunis, J. (eds.): Participatory Sensing, Opinions and Collective Awareness. Heidelberg, Germany : Springer Verlag, 2017
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Brenner, Walter ; Broy, Manfred ; Leimeister, Jan Marco: Auf dem Weg zu einer Informatik neuer Prägung in Wissenschaft, Studium und Wirtschaft. In: Informatik-Spektrum vol. 40 (2017), Nr. 6, pp. 602–606
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Brenner, Walter ; Broy, Manfred ; Leimeister, Jan Marco:Zur Rolle der Informatik in der Digitalisierung. St. Gallen, Switzerland, 2017
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Oeste-Reiß, Sarah ; Bittner, Eva ; Söllner, Matthias:Yes You Can - Empowering Lecturers to Simulate Collaboration among Learners in the Disciplines of Problem-Solving and Critical Thinking Regardless of Class Size.. In: 13th International Conference on Wirtschaftsinformatik (WI). St. Gallen, Switzerland, 2017
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Fostering higher-level learning in the disciplines of problem-solving and critical thinking becomes important when educating knowledge workers. By taking part in collaborative learning (CL) activities, e.g., interactiv discussions, learners have the chance to develop, defend, and critique positions. However, implementing CL activities is often complex because this requires knowledge in designing effective collaboration. We build on insights from learning and collaboration engineering literature to develop an IT-based Collaborative-Learning-Pattern Approach (CLPA) that consists of two patterns, each describing a process design – one for training problem-solving, and the other for attaining critical thinking abilities. To evaluate the CLPA, we use simulations, walk-throughs among lecturers, and pilot-tests among students. Results show that the CLPA empowers lecturers to implement respective activities in the classroom, takes into account pedagogical demands, and satisfies lecturers as well as learners. We contribute several findings toward a design theory for empowering lecturers to implement CL activities in their classes.
Roßnagel, A. (ed.):Datenschutzaufsicht nach der EU-Datenschutz-Grundverordnung : Springer, 2017 — ISBN 978-3-658-18506-0
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Roßnagel, Alexander: Entwurf eines neuen Bundesdatenschutzgesetzes. In: Datenschutz und Datensicherheit vol. 41 (2017), Nr. 5, pp. 269 – 270
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Roßnagel, Alexander ; Huge, Antonia:Möglichkeiten der Öffentlichkeitsbeteiligung in Planungs- und Genehmigungsverfahren von Windenergieanlagen.. In: Holstenkamp, L. ; Radtke, J. (eds.): Handbuch Energiewende und Partizipation : Springer, 2017 — ISBN 978-3-658-09416-4, pp. 613 – 626
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Gensler, A. ; Sick, B.:Probabilistic wind power forecasting: A multi-scheme ensemble technique with gradual coopetitive soft gating.. In: IEEE Symposium Series on Computational Intelligence (SSCI) : IEEE, 2017, pp. 1–10
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Roßnagel, Alexander:Europäische Datenschutz-Grundverordnung. Vorrang des Unionsrechts - Anwendbarkeit des nationalen Rechts : Nomos, 2017
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Schaller, Fabian:Datenverarbeitung im öffentlichen Bereich.. In: Roßnagel, A. (ed.): Europäische Datenschutz-Grundverordnung, Vorrang des Unionsrechts – Anwendbarkeit des nationalen Rechts. Baden-Baden : Nomos, 2017, pp. 216–224
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Blazy, Stephan ; Gonscherowski, Susan ; Selzer, Annika:Anforderungen des künftigen europäischen Datenschutzrechts an die vertrauenswürdige Verteilung von Verschlüsselungsschlüsseln.. In: Eibl, M. ; Gaedke, M. (eds.): INFORMATIK 2017. Bonn, 2017, pp. 751–762
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Mrass, Volkmar ; Peters, Christoph ; Leimeister, Jan Marco:Exploiting the Digitization of Leisure Time: Casual Work and Additional Earnings for Individuals on Crowdworking Platforms.. In: International Conference on Information Systems (ICIS), Pre-Workshop "Digitization of the Individual (DOTI)". Seoul, South Korea, 2017
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Mueller, J.: Combining Aspects of Genetic Algorithms with Weighted Recommender Hybridization (2017)
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Mueller, Juergen ; Stumme, Gerd:Predicting Rising Follower Counts on Twitter Using Profile Information.. In: 9th International ACM Web Science Conference 2017 (WebSci 2017), Troy, NY, USA, June 26-28, 2017. Accepted for Publication. New York, NY, USA : ACM, 2017 — ISBN 978-1-4503-4896-6
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When evaluating the cause of one's popularity on Twitter, one thing is considered to be the main driver: Many tweets. There is debate about the kind of tweet one should publish, but little beyond tweets. Of particular interest is the information provided by each Twitter user's profile page. One of the features are the given names on those profiles. Studies on psychology and economics identified correlations of the first name to, e.g., one's school marks or chances of getting a job interview in the US. Therefore, we are interested in the influence of those profile information on the follower count. We addressed this question by analyzing the profiles of about 6 Million Twitter users. All profiles are separated into three groups: Users that have a first name, English words, or neither of both in their name field. The assumption is that names and words influence the discoverability of a user and subsequently his/her follower count. We propose a classifier that labels users who will increase their follower count within a month by applying different models based on the user's group. The classifiers are evaluated with the area under the receiver operator curve score and achieves a score above 0.800.
Scheiner, Christian ; Haas, Philipp ; Bretschneider, Ulrich ; Blohm, Ivo ; Leimeister, Jan Marco:Obstacles and Challenges in the Use of Gamification for Virtual Idea Communities.. In: Stieglitz, S. ; Lattemann, C. ; Robra-Bissantz, S. ; Zarnekow, R. ; Brockmann, T. (eds.): Gamification - Using Game Elements in Serious Contexts. Cham : Springer, 2017, pp. 65–76
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Blohm, Ivo ; Haas, Philipp ; Peters, Christoph ; Jakob, Thomas ; Leimeister, Jan Marco: Managing disruptive innovation through service systems - Crowdlending in the banking industry. In: Case Center vol. 317-0281 (2017)
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The Internet has affected and partially radically changed the business models of traditional industries. Crowdfunding as a new concept of funding over the Internet by a large crowd has especially gained maturity. Crowdfunding offerings range from funding charitable projects or innovative gadgets to a funding alternative for start-ups or small businesses. Therefore, crowdfunding represents an innovative way to provide liquidity for illiquid markets. With regard to the banking crisis and the growing skepticism toward banks, crowdfunding is seen as a more transparent, democratic, and entertaining way of funding, which makes it highly attractive for banks. A senior innovation manager of The Bank of Switzerland (TBOS), one of Switzerland's largest and most traditional banks, recognized the disruptive and beneficial potential of crowdlending. By facing strong resentments, he developed the idea of TBOS engaging in crowdlending by collaborating with a start-up by bundling competencies in a service system.
Müller, J.: IUNO: Nationales Referenzprojekt IT-Sicherheit in Industrie 4.0. In: ZD-Aktuell (2017), Nr. 5, p. 05531
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Schaller, Fabian: EU: Die geplante Kodex-RL: Bündelung und Überarbeitung des bisherigen tk-rechtlichen Regelungsregimes. In: ZD-Aktuell (2017), Nr. 9
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Haas, Philipp ; Blohm, Ivo:Blueprinting Crowdfunding - Designing a Crowdfunding Service Configuration Framework.. In: 13th International Conference on Wirtschaftsinformatik (WI). St. Gallen, Switzerland, 2017
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Günther, Andreas ; Knote, Robin:How to Design Patterns in IS Research – A State-of-the-Art Analysis.. In: 13th International Conference on Wirtschaftsinformatik (WI). St. Gallen, Switzerland, 2017
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Schaller, Fabian: Feldtest der „smarter-App“. In: ZD-Aktuell (2017), Nr. 17
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Schaller, Fabian: RL 2014/53/EU und deren Umsetzung im geplanten Funkanlagengesetz. In: ZD-Aktuell (2017), Nr. 1
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Nebel, Maxi ; SLT-Drs (ed.):Stellungnahme im Rahmen der öffentlichen Anhörung von Sachverständigen zum „Bericht über die Evaluierung des Sächsischen E-Government-Gesetzes (SächsEGovG)“ ( Nr. 6/9859), 2017
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Gruhl, Christian ; Beer, Frank ; Heck, Henner ; Sick, Bernhard ; Buehler, Ulrich ; Wacker, Arno ; Tomforde, Sven:A Concept for Intelligent Collaborative Network Intrusion Detection.. In: ARCS 2017; 30th International Conference on Architecture of Computing Systems; Proceedings of : VDE, 2017, pp. 1–8
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Grigorjew, O. ; Nebel, M.: Forum Privatheit und selbstbestimmtes Leben in der Digitalen Welt. In: ZD-Aktuell (2017), Nr. 5, p. 05532
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Grigorjew, O. ; Bile, T.: Änderung des TMG: Gelungene Nachbesserung für einen rechtssicheren offenen WLAN-Betrieb?. In: ZD-Aktuell (2017), Nr. 9, p. 05621
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Grigorjew, Dr. Olga ; Bile, Tamer: Änderung des TMG: Gelungene Nachbesserung für einen rechtssicheren offenen WLAN-Betrieb?. In: ZD-Aktuell vol. Heft 9 (2017), Nr. 05621
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Grigorjew, Dr. Olga ; Bile, LL.M.:Forum Privatheit und selbstbestimmtes Leben in der Digitalen Welt, Phase II ( Nr. 05557) : Projektgruppe verfassungsverträgliche Technikgestaltung, 2017
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Goeble, Thilo ; Kottke, Clara: „Dieselgipfel“ und die datenschutzrechtlichen Fragestellungen. In: ZD-Aktuell vol. 15 (2017), Nr. 05759
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Nebel, M. ; Bile, T.: Die Fortentwicklung des Datenschutzes – Jahreskonferenz des Forum Privatheit. In: ZD-Aktuell (2017), Nr. 7, p. 05798
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Leicht, Niklas ; Blohm, Ivo ; Leimeister, Jan Marco: Leveraging the Power of the Crowd for Software Testing. In: IEEE Software vol. 34 (2017), Nr. 2, pp. 62–69
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The rapid development of new IT-enabled business models, a fast-growing hardware market, and that market's segmentation are making software testing more complex. So, manual testing is becoming less applicable--economically and practicably. One approach to overcome these issues is crowdtesting--using crowdsourcing to perform testing. To profit from crowdtesting, companies can use three approaches: engage an external crowd of Internet users, engage their employees, or engage their customers. Three case studies illustrate these approaches' differences, benefits, and challenges, and the potential solutions to those challenges. Researchers' experiences with these approaches have led to guidelines that can help software development executives establish crowdtesting in their organizations. The Web Extra at extras.computer.org/extra/mso2017020062s1.pdf describes the procedure for the case studies. This article is part of a special issue on Crowdsourcing for Software Engineering.
Roßnagel, Alexander ; Sunyaev, Ali ; Batman, Ayse ; Maier, Natalie ; Lins, Sebastian ; Teigeler, Heiner: AUDITOR: Neues Forschungsprojekt zur Datenschutz-Zertifizierung von Cloud-Diensten nach der DS-GVO. In: ZD-Aktuell (2017), Nr. 21
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Roßnagel, Alexander ; Richter, Philipp:Sachverständigenkommission 15. Kinder- und Jugendbericht (Hrsg.), Zwischen Freiräumen, Familie, Ganztagsschule und virtuellen Welten - Persön-lichkeitsentwicklung und Bildungsanspruch im Jugendalter.. In: und Jugendbericht, S. 15. K. (ed.): Zwischen Freiräumen, Familie, Ganztagsschule und virtuellen Welten - Persönlichkeitsentwicklung und Bildungsanspruch im Jugendalter : Verlag Deutsches Jugendinstitut, 2017 — ISBN 978-3-87966-455-9, pp. 205–260
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Giese, Holger ; Vogel, Thomas ; Diaconescu, Ada ; Götz, Sebastian ; Bencomo, Nelly ; Geihs, Kurt ; Kounev, Samuel ; Bellman, Kirstie L:State of the Art in Architectures for Self-aware Computing Systems.. In: Self-Aware Computing Systems : Springer, 2017, pp. 237–275
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Nebel, Maxi:Erlaubnistatbestände.. In: Roßnagel, A. (ed.): Europäische Datenschutz-Grundverordnung, Vorrang des Unionsrechts – Anwendbarkeit des nationalen Rechts. Baden-Baden : Nomos, 2017, pp. 130–143
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Roßnagel, Alexander:Datenschutz im vernetzten Fahrzeug.. In: Hilgendorf, E. (ed.): Autonome Systeme und neue Mobilität : Nomos, 2017 — ISBN 978-3-8487-3843-4, pp. 23–47
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Friedewald, M. ; Lamla, J. ; Roßnagel, A. (eds.):Informationelle Selbstbestimmung im digitalen Wandel. Wiesbaden : Springer, 2017
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Blazy, Stephan: E-Privacy-Verordnung: Wie geht es weiter? (2017)
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Dellermann, Dominik: Going East: A Framework for Reverse Innovation in SMEs. In: Journal of Business Strategy (2017)
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Duranova, Lenka ; Ohly, Sandra ; Schmitt, Antje ; Braukmann, Johanna:Technology-assisted supplemental work and ego depletion – Role of person and situation.. In: Proceedings of the 18th EAWOP Congress 2017 - Enabling Change through Work and Organizational Psychology, 2017, p. 611
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Purpose: Technology-assisted supplemental work (TASW; Fenner & Renn, 2010) is believed to contribute to ego depletion, but empirical results are inconsistent. Following conservation of resources theory, we suppose that employees performing TASW and, at the same time, achieving goals report lower levels of ego depletion than employees without goal achievement as a resource. Furthermore, we expect employees high on negative affectivity experiencing the highest levels of ego depletion. Design/Methodology: Using a daily diary study design, data were collected online from 148 knowledge workers in Germany who completed a general survey and three daily surveys over 5 work days. Results: Hierarchical moderation analyses support our hypotheses. Long TASW in the combination with high goal achievement and low NA does not contribute to ego depletion the next day – on the contrary, it diminishes. Furthermore, in the combination of low goal achievement and high NA, TASW turns into a stressor. Limitations: The constructs were measured with self-report scales. Research/Practical Implications: The results emphasize the relevance of conscious handling one’s own resources after hours. Future research should shed more light on the circumstances and long-term consequences of TASW. Originality/Value: Our study contributes to the emerging research on TASW by examining its consequences and boundary conditions. The findings suggest TASW having negative effects only for some employees under some circumstances.
Pittroff, Fabian ; Ochs, Carsten ; Lamla, Jörn ; Büttner, Barbara:Digitale Reterritorialisierung als politische Strategie. Die Reaktionsweisen der Demokratie in den Neuverhandlungen um Privatheit.. In: Buhr, L. ; Hammer, S. ; Schölzel, H. (eds.): Staat, Internet und digitale Gouvernementalität. Wiesbaden : Springer, 2017
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Rietsche, Roman ; Lehmann, Katja ; Haas, Philipp ; Söllner, Matthias:The Twofold Value of IT-Based Peer Assessment in Management Information Systems Education.. In: 13th International Conference on Wirtschaftsinformatik (WI). St. Gallen, Switzerland, 2017
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Richter, Philipp ; Müller, Johannes: Datenschutz, Datensicherheit und IT-Sicherheit in der Arbeitswelt im Zeichen von Industrie 4.0 und Big Data. In: sicher ist sicher vol. 68 (2017), Nr. 9,10,11, pp. 367–372, 446
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Draude, Claude:Computing Bodies : Gender Codes and Anthropomorphic Design at the Human-Computer Interface. Wiesbaden : Springer Fachmedien Wiesbaden Imprint : Springer VS, 2017 — ISBN 9783658186609 3658186607
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Claude Draude analyzes embodied software agents - interface solutions that are designed to talk back and give emotional feedback - from a gender and media studies perspective. She addresses technological and sociocultural concepts in their interplay of shifting the boundary between what is considered as human and what as machine. The author discusses the technological realization of specific personality models that define the design of embodied software agents - emotion and gaze models, in particular. Finally, she explores these models in their broader cultural context by relating them to the prominent topic of the Turing test and the notion of the Uncanny Valley. Contents The Human-Computer Interface Semiotic Mirrors: The Interface as a Place of Sign/Signal Mediating Embodiment: The Role of the Body, Gaze Behavior and Emotions Counting as Machine, Counting as Human Target Groups Researchers and students in the fields of media studies, computer science, cultural studies, gender studies, sociology The Author Prof. Dr. Claude Draude is head of the department for Gender/Diversity in Informatics Systems (GeDIS) at the Faculty of Electrical Engineering/Computing at the University of Kassel, Germany.
Radziwill, M. ; Kniewel, R. ; Schmidt, L.: Multimodale Smartphone-Interaktion für Jung und Alt? Gebrauchstauglichkeit und Akzeptanz von Sprachsteuerung. In: atp edition - Automatisierungstechnische Praxis vol. 59 (2017), Nr. 6, pp. 46–53
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Sprachsteuerungen halten verstärkt Einzug in den Alltag der Menschen, wenn diese mit technischen Geräten interagieren. Die Frage nach der Gestaltung von Mensch-Maschine-Schnittstellen stellt sich auch in der Automatisierungstechnik. Um die Gebrauchstauglichkeit und kontextabhängige Akzeptanz sprachbasierter Smartphone-Steuerung mittels Google-Now in Bezug auf Nutzer unterschiedlicher Alterskohorten zu evaluieren, wurden im Rahmen einer Laborstudie mit zwei unabhängigen Stichproben die Effektivität und die Effizienz sprachbasierter Smartphone-Interaktion mit dem heute üblichen Interaktionsmuster der virtuellen Touchscreen-Tastatur verglichen. Außerdem wurden die empfundene Einfachheit der Nutzung sowie die kontextabhängige Nutzungsbereitschaft der beiden Eingabemodalitäten evaluiert. Die Studie zeigt, dass beide Eingabemodalitäten sowohl von jüngeren als auch von älteren Nutzern zur Erledigung von navigationsbezogenen Aufgaben genutzt werden können. Jedoch treten im Hinblick auf Effektivität (Häufigkeit von Fehleingaben) und Effizienz (Bearbeitungsdauer) der Aufgabenerfüllung signifikante Unterschiede sowohl zwischen den Eingabemodalitäten als auch zwischen den beiden Alterskohorten auf.
Richter, Dr. Philipp ; Müller, MLE.: Datenschutz und Datensicherheit – Bedeutung für die Arbeitswelt im Zeichen von ‚Big Data‘. In: Pieper, R. ; Lang, K.-H. (eds.) Sicherheitswissenschaftliches Kolloquium 2015- 2016 (Band 12) vol. 12. Wuppertal, ASER Eigenverlag (2017), pp. 17–37
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Rhyn, Marcel ; Blohm, Ivo:Combining Collective and Artificial Intelligence: Towards a Design Theory for Decision Support in Crowdsourcing.. In: European Conference on Information Systems (ECIS). Guimarães, Portugal, 2017
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Rhyn, Marcel ; Blohm, Ivo:A Machine Learning Approach for Classifying Textual Data in Crowdsourcing.. In: 13th International Conference on Wirtschaftsinformatik (WI). St. Gallen, Switzerland, 2017
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David, Klaus ; Berndt, Hendrik:Safety Belt for Pedestrians.. In: Linnhoff-Popien, C. ; Schneider, R. ; Zaddach, M. (eds.): Digital Marketplaces Unleashed. Berlin, Heidelberg, Germany : Springer Berlin Heidelberg, 2017 — ISBN 978-3-662-49275-8, pp. 491–497
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The paper outlines an innovative and efficient pedestrian protection system. It is mobile phone based and easy to implement. It detects and evaluates context and surroundings of vulnerable road users to reduce their number of accidents, injuries and fatalities. Involved stakeholders and potential business scenarios are identified.
Dellermann, Dominik:Hybrid Intelligence DSS for Business Model Innovation.. In: Academy of Management Annual Meeting, TIM Doctoral Research Development Workshop. Atlanta, Georgia, USA, 2017
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Dellermann, Dominik ; Reck, Fabian:The Antecedents of Transaction Costs in Digital Ecosystems: A Configurational View on the Interplay of App Architecture and Platform Governance.. In: Hawaii International Conference on System Sciences (HICSS). Waikoloa, HI, USA., 2017
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Pittroff, Fabian:Amplituden der Demokratie. Der NSA-Untersuchungsausschuss des Deutschen Bundestages als demokratische Reaktion auf Verunsicherungen nach Snowden.. In: Bauman, J. ; Lamla, J. (eds.): Privacy-Arena. Kontroversen um Privatheit im digitalen Zeitalter. Kassel : Kassel University Press, 2017
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Dellermann, Dominik ; Reck, Fabian:Minimizing Complementors’ Risk in Third-Party Innovation: A Qualitative Comparative Analysis (QCA) of Digital Platform Configurations.. In: Hawaii International Conference on System Sciences (HICSS). Waikoloa, HI, USA., 2017
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Dellermann, Dominik ; Lipusch, Nikolaus ; Ebel, Philipp ; Popp, Karl Michael ; Leimeister, Jan Marco:Finding the Unicorn: Predicting Early Stage Startup Success through a Hybrid Intelligence Method.. In: International Conference on Information Systems (ICIS). Seoul, South Korea, 2017
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Dellermann, Dominik ; Lipusch, Nikolaus ; Ebel, Philipp ; Leimeister, Jan Marco:Design Principles for Hybrid Intelligence Decision Support Systems in Entrepreneurship.. In: Electronic Markets Paper Development Workshop. Karlsruhe, Germany, 2017
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Dellermann, Dominik ; Lipusch, Nikolaus ; Ebel, Philipp ; Leimeister, Jan Marco:Building Your IoT Ecosystem: Proposing the Hybrid Intelligence Accelerator.. In: Buxmann, P. ; Curan, A. T. ; Eichler, G. ; Jansen, S. ; Kude, T. ; Popp, K. M. (eds.): Proceedings of the European Workshop on Software Ecosystems 2017. Darmstadt, Germany : Books on Demand, 2017
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Dellermann, Dominik ; Lipusch, Nikolaus ; Ebel, Philipp ; Leimeister, Jan Marco:New Ways to Consider: Towards a Design Theory for Hybrid Intelligence Accelerators.. In: The Baugh-Ratio Colloquium for Young Social Scientists. Stockholm, Sweden, 2017
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Dellermann, Dominik ; Lipusch, Nikolaus ; Ebel, Philipp ; Leimeister, Jan Marco:Digitizing Knowledge Intensive Service Systems: The CrowdServ Project.. In: AIS SIG Services Pre-ICIS Workshop. Seoul, South Korea, 2017
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Dellermann, Dominik ; Lipusch, Nikolaus ; Ebel, Philipp:Entrepreneurship at the Interface: How Crowdsourcing Can Support Opportunity Creation.. In: Academy of Management Annual Meeting (AOM). Atlanta, Georgia, USA, 2017
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Dellermann, Dominik ; Lipusch, Nikolaus ; Ebel, Philipp:Developing Design Principles for a Service System for Crowd-Based Business Model Validation.. In: Design Science Research in Information Systems and Technology (DESRIST). Karlsruhe, Germany, 2017
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Dellermann, Dominik ; Lipusch, Nikolaus ; Ebel, Philipp:Crowd-based Incubation: A new Pathway to Support Entrepreneurship.. In: ISPIM Innovation Conference. Vienna, Austria, 2017
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Dellermann, Dominik ; Jud, Christopher ; Reck, Fabian:Understanding Platform Loyalty in the Cloud: A Configurational View on ISV’s Costs and Benefits.. In: 13th International Conference on Wirtschaftsinformatik (WI). St. Gallen, Switzerland, 2017
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Dellermann, Dominik ; Jud, Christopher ; Reck, Fabian: Plattform-Loyalität in der Cloud. In: HMD Praxis der Wirtschaftsinformatik, Springer Fachmedien Wiesbaden (2017)
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Duranova, Lenka ; Ohly, Sandra ; Weigelt, Oliver ; Hoffmann, Katja:Antecedents and consequences of always on.. In: Proceedings of the 10. Tagung der Fachgruppe Arbeits-, Organisations- und Wirtschaftspsychologie (AOW) der Deutschen Gesellschaft für Psychologie (DGPs) in Dresden, 2017, p. 196
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Research Question According to effort-recovery theory (Meijman & Mulder, 1998), employees need recovery from work-related effort. However, work stressors influence employees even beyond their workplaces. Furthermore, the rapid development of new technologies leads to growth in work-related technology use after hours. Consequently, the opportunities for employee recovery are reduced. In order to shed light on the supplemental work behaviour through technology use after hours, we examine its antecedents and consequences. Study Design We used a shortitudinal panel design. Data from 73 full-time workers in Germany were collected online on Friday after work, at the weekend, and on Monday morning before going to work. Results Serial mediation analysis supported the hypotheses. Results indicate that work stressors influence work-related technology use after hours, which, in turn, hinders psychological detachment from work and impairs sleep quality. Limitations Future research should shed more light on the long-term consequences of work-related technology use after hours and systematically take personal and situational factors into account. Implications Our findings emphasize the importance of the need for developing strategies to prevent and handle work stressors and supplemental work after hours. Contribution This study contributes to stress and recovery research and the emerging research on work-related technology use after hours by examining its antecedents and consequences.
Pittroff, Fabian:Profile als Labore des Privaten.. In: Degeling, M. ; Othmer, J. ; Weich, A. ; Westermann, B. (eds.): Profile. Interdisziplinäre Beiträge. Lüneburg : Meson Press, 2017
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Friedewald, Michael ; Lamla, Jörg ; Roßnagel, Alexander:Einleitung: Informationelle Selbstbestimmung im digitalen Wandel.. In: Informationelle Selbstbestimmung im digitalen Wandel, 2017 — ISBN 978-3-658-17662-4, pp. 1–8
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Ohly, Sandra ; Gochmann, Viktoria:Handbook of Methods in Leadership Research.. In: Diary studies in leadership. Edward Elgar Publishing, 2017 — ISBN 9781785367274
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Friedewald, M. ; Bieker, F. ; Obersteller, H. ; Nebel, M. ; Martin, N. ; Rost, M. ; Hansen, M. ; Friedewald ; Quinn, A. ; Hansen ; Heesen ; Hess ; Lamla ; Matt ; A., R. ; et al. (eds.):White Paper Datenschutz-Folgenabschätzung, Ein Werkzeug für einen besseren Datenschutz. Karlsruhe : Forum Privatheit und selbstbestimmtes Leben in der Digitalen Welt, 2017
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Roßnagel, Alexander: Datenschutzgesetzgebung für öffentliche Interessen und den Beschäftigungskontext – Chancen für risikoadäquate Datenschutzregelungen?. In: Datenschutz und Datensicherheit vol. 41 (2017), Nr. 5, pp. 290 – 294
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Bretschneider, Ulrich ; Hartmann, Marco ; Leimeister, Jan Marco: Keep them alive! Design and Evaluation of the "Community Fostering Reference Model". In: Business Information System & Engineering (BISE) vol. 60 (2017), Nr. 6, pp. 493–511
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Firms host online communities for commercial purposes, for example in order to integrate customers into ideation for new product development. The success of these firm-hosted online communities depends entirely on the cooperation of a high number of customers that constantly produce valuable knowledge for firms. However, in practice, the majority of successfully implemented communities suffers from stagnation and even a decrease of member activities over time. Literature provides numerous guidelines on how to build and launch these online communities. While these models describe the initial steps of acquiring and activating a community base from scratch very well and explicitly, they neglect continuous member activation and acquistion after a successful launch. Against this background, the authors propose the Community Fostering Reference Model (CoFoRM), which represents a set of general procedures and instruments to continuously foster member activity. In this paper, the authors present the theory-driven design as well as the evaluation of the CoFoRM in a practical use setting. The evaluation results reveal that the CoFoRM represents a valuable instrument in the daily working routine of community managers, since it efficiently helps activating community members especially in the late phases of a community’s lifecycle.
Folmer, Jens ; Kirchen, Iris ; Trunzer, Emanuel ; Vogel-Heuser, Birgit ; Pötter, Thorsten ; Graube, Markus ; Heinze, Sebastian ; Urbas, Leon ; et al.: Challenges for Big and Smart Data in Process Industries. In: atp edition vol. 01-02 (2017)
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Roßnagel, Alexander: Gesetzgebung im Rahmen der Datenschutz-Grundverordnung – Aufgaben und Spielräume des deutschen Gesetzgebers?. In: Datenschutz und Datensicherheit vol. 41 (2017), Nr. 5, pp. 277 – 281
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Bretschneider, Ulrich ; Leimeister, Jan Marco: Not Just An Ego Trip: Exploring Backers’ Motivation for Funding in Incentive-Based Crowdfunding. In: Journal of Strategic Information Systems (JSIS) vol. 26 (2017), Nr. 4, pp. 246–260
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Incentive-based forms of crowdfunding – such as reward-, equity- and lending-based crowdfunding – are becoming increasingly popular. However, research that studies backers’ motivations for funding in these environments is still in an embryonic state, revealing an inconsistent and narrow picture. The few existing studies are largely guided by the idea that backers are mainly egoistically motivated and do not have prosocial motives. We developed a research model that describes backers’ motivation and conducted an empirical study to examine this model. Results indicate that backers indeed have several self-interest motivations for funding: prospect of a reward; expectation of recognition from others; to lobby a certain project in the hopes of its fruition; and to develop their image. However, some backers are also prosocially motivated in that they develop feelings of liking for a certain venture and/or project team. Furthermore, we found evidence that herding has a significant moderating effect on backers’ reward motivation. Strategic IS researchers as well as crowdfunding practitioners can draw on our findings to systematically design, implement, and evaluate potential incentive systems that respond to reward-, recognition-, lobbying-, image- and liking-motives and thereby attract the crowd more effectively to invest in ventures presented on incentive-based crowdfunding systems.
Roßnagel, Alexander: Entwurf einer E-Privacy-Verordnung – Licht und Schatten. In: Zeitschrift für Rechtspolitik (2017), p. 33
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Roßnagel, Alexander: Einführung zu TeleMediaR - Telekommunikations- und Multimediarecht, dtv-Textsammlung (2017) — ISBN 978-3-423-05598-7
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Ohly, Sandra: Arbeitszufriedenheit und Energie. In: Organisationsberatung, Supervision, Coaching vol. 24 (2017), Nr. 2, pp. 195–204
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Der vorliegende Artikel argumentiert, dass ein Fokus auf Energie als hoch aktivierter affektiver Zustand neue Möglichkeiten eröffnet, Wohlbefinden bei der Arbeit und Arbeitsleistung zu fördern. Dazu werden exemplarische Forschungsarbeiten dargestellt und diskutiert, etwa zu affektiven Arbeitsereignissen, Erholung und zu Merkmalen von Arbeitsaufgaben. Diese zeigen verschiedene Ansatzpunkte zur Förderung von Energie auf. Die praktischen Implikationen dieser Forschung werden dargelegt.
Ohly, Sandra ; Duranova, Lenka:Information overload and well-being: Longitudinal test of reverse causation.. In: Proceedings of the 18th EAWOP Congress 2017 - Enabling Change through Work and Organizational Psychology, 2017, p. 612
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Purpose: Information overload by modern information and communication technology (ICT) is believed to be detrimental but longitudinal research is scarce. Because the term “overload” has negative connotations, there is a risk of spurious correlations with well-being outcomes. Furthermore, reverse causation seems likely because when employees are too exhausted to deal with work demands, they might perceive their current email and information load as taxing or overloading. Design/Methodology: We tested the effects in a 2-wave panel design and conducted an online survey collecting data by German employees (N = 95) two weeks apart. Results: Exploratory factor analysis revealed three components of information overload: by emails, by additional ICT, and general work overload. Only general work overload was a significant predictor when examining the three components simultaneously. Test of reverse causation revealed that lower levels of well-being contribute to higher levels of general work overload. Well-being was not related to email overload or ICT overload two weeks later. Limitations: The validity of the information overload instrument by Misra and Stokols (2012) needs further examination. Research/practical implications: The results suggest that information overload is detrimental to well-being, but not when considering more traditional stressors such as general workload. Future research needs to examine the sources of information overload and the effects of information overload in specific high risk occupations. Originality/value: This study is one of the few longitudinal studies in this area testing for reverse causation.
Ohly, Sandra ; Duranova, Lenka:Überlastung durch Emails: längsschnittliche Ergebnisse.. In: Proceedings of the 10. Tagung der Fachgruppe Arbeits-, Organisations- und Wirtschaftspsychologie (AOW) der Deutschen Gesellschaft für Psychologie (DGPs) in Dresden, 2017, p. 369
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Fragestellung: Informations- und Kommunikationstechnologien (IKT) ermöglichen es, überall und ständig Emails zu empfangen. Dies wird häufig als Ursache von Überlastung angesehen. Emails können neben der Ursache aber auch ein Symbol von Überlastung sein (Barley, Meyerson, & Grodal, 2011). Demnach wird das Stresserleben lediglich auf die zahlreichen Emails attribuiert. Weiterhin ist eine umgekehrte Verursachungsrichtung plausibel: Personen, die bereits in ihrem Wohlbefinden beeinträchtigt sind, sind weniger in der Lage, eingehende Informationen zu filtern und erleben daher Emails als belastend. Die zahlreichen bisherigen Studien zu diesem Thema lassen aufgrund methodischer Schwächen keine eindeutigen Schlüsse über die Wirkrichtung zu, da nur querschnittliche Zusammenhänge analysiert werden. Untersuchungsdesign: In diesem Vortrag werden die Ergebnisse zweier längsschnittlicher Untersuchungen (N = 95 und N = 333) zum Thema Informationsflut und Wohlbefinden vorgestellt, die Hinweise auf die Ursache-Wirkungs-Kette erlauben. Ergebnisse: Die Auswertung beider Studien mittels Regressionsanalysen und Strukturgleichungsmodelle weisen darauf hin, dass Informationsüberflutung durch Email über die Zeit hinweg mit verringertem Wohlbefinden in Verbindung steht. Es gibt keine Bestätigung für die umgekehrte Verursachungsrichtung. Theoretische Implikationen: Die Ergebnisse weisen darauf hin, dass Überlastung durch Emails tatsächlich ursächlich für verringertes Wohlbefinden sein kann. In zukünftiger Forschung muß geklärt werden, für welche Personengruppen dies besonders gilt, und welche Strategien hilfreich sein können, um der Überlastung entgegen zu wirken. Praktische Implikationen: Strategien dem Emailaufkommen besser zu begegnen sind das Deaktivieren der Push-Funktion, das Automatische Ablegen von Emails in Unterordner, und ein verbessertes Kommunikationsverhalten per Email. Diese sollten zur Verbesserung des Wohlbefindens verwendet werden. Beitrag: Die Studien weisen darauf hin, dass Überlastung durch Emails tatsächlich ursächlich für verringertes Wohlbefinden sein kann.
Ohly, Sandra ; Göritz, Anja S. ; Schmitt, Antje: The power of routinized task behavior for energy at work. In: Journal of Vocational Behavior vol. 103 (2017), pp. 132–142
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According to conservation of resources model and control theory, routinized task behavior that develops through repeated execution under stable circumstances helps employees to deal with demanding aspects of their jobs. In two studies, we investigated whether routinized task behavior predicts momentary levels of energy. In the first study, 328 employees rated their level of routinization of five work tasks and subsequently provided information on their daily working on these tasks and energy twice a day on five consecutive workdays. Multilevel analyses reveal that employees experience higher levels of energy after they were working on a highly routinized task. In the second study, 32 employees provided ratings of their current routinized task behavior and energy three times a day for three consecutive workdays (in total 285 data points). Routinized task behavior at one point in time predicted energy at the next point in time when controlling for initial levels of energy. These results indicate that routinized task behavior is an effective way of managing energy at work, and that a microanalysis of task behaviors offers valuable insights.
Durward, David ; Blohm, Ivo:The Rise of Crowd Aggregators - How Individual Workers Restructure Their Own Crowd.. In: 13th International Conference on Wirtschaftsinformatik (WI). St. Gallen, Switzerland, 2017
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Ohly, Sandra ; Plückthun, Laura ; Kissel, Dorothea: Developing Students’ Creative Self-Efficacy Based on Design-Thinking: Evaluation of an Elective University Course. In: Psychology Learning & Teaching vol. 16 (2017), Nr. 1, pp. 125–132
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The development of novel and useful ideas is a process that can be described in multiple steps, including information gathering, generating ideas and evaluating ideas. We evaluated a university course that was developed based on design thinking principles which employ similar steps. Our results show that the course was not effective in enhancing students' creative self-efficacy, the belief that they are able to generate novel and useful ideas. Comparison to previous training approaches lead to conclusions on how to improve the course, and to implications for future research.
Ernst, Sissy-Josefina ; Janson, Andreas ; Söllner, Matthias:Mobiles Lernen für China – eine iterative Prototypenentwicklung.. In: Wirtschaftsinformatik Konferenz (WI) 2017. St. Gallen, Switzerland, 2017
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Mobiles Lernen ermöglicht eine Integration von authentischen Lernszenarien in den Alltag und unterstützt somit den Aufbau von Problemlösungskompetenzen. Da zielgruppenspezifische Unterschiede die Nutzung von IT beeinflussen und sich Lehrkonzepte unterscheiden, muss die Zielgruppe bei der Entwicklung einer mobilen Lernanwendung (MLA) berücksichtigt werden. Dieser Beitrag zeigt eine iterative Prototypenentwicklung am Beispiel einer MLA für den Einsatz in chinesischen Berufsschulen. Auf Basis der ITKulturkonflikttheorie wird ein systematischer Gestaltungs- und Evaluationsprozess dargestellt. Die Ergebnisse zeigen, dass die systematische Zielgruppenanpassung den Erfolg einer MLA signifikant steigert.
Ernst, Sissy-Josefina ; Janson, Andreas ; Peters, Christoph ; Leimeister, Jan Marco:Understanding IT-Culture Conflicts to Drive Successful Technochange Projects – a Case Study.. In: International Conference on Information Systems (ICIS). Seoul, South Korea, 2017
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Opfer, Stephan ; Jakob, Stefan ; Geihs, Kurt:Reasoning for Autonomous Agents in Dynamic Domains.. In: Proceedings of the 9th International Conference on Agents and Artificial Intelligence: ICAART. vol. Volume 2. Porto, Portugal, 2017
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Roßnagel, A. ; Geminn, C. ; Hagendorff, T. ; Heesen, J. ; Karaboga, M. ; Krämer, N. ; Kreutzer, M. ; Lamla, J. ; et al.:Fake News - Policy Paper : Schriftenreihe Forum Privatheit und selbstbestimmtes Leben in der digitalen Welt, Karlsruhe: Fraunhofer ISI, 2017
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Roßnagel, A.: Vorratsdatenspeicherung rechtlich vor dem Aus?. In: Neue juristische Wochenschrift (2017), pp. 696–698
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Eisele, D. ; Grigorjew, O. ; Karaboga, M. ; Matzner, T. ; Morlok, T. ; Nebel, M. ; Ochs, C. ; Robrahn, R. ; et al.:Privatheit in öffentlichen WLANs – Spannungsverhältnisse zwischen gesellschaftlicher Verantwortung, ökonomischen Interessen und rechtlichen Anforderungen, White Paper : Forum Privatheit und selbstbestimmtes Leben in der Digitalen Welt, 2017 — ISBN 2199-8906
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Eis, A. ; Klose, E. M. ; Hegenberg, J. ; Schmidt, L.:Szenariobasierter Prototyp für ein Reiseassistenzsystem mit Datenbrillen.. In: Burghardt, M. ; Wimmer, R. ; Wolff, C. ; Womser-Hacker, C. (eds.): Mensch und Computer 2017 - Tagungsband (Regensburg 2017). Bonn : Gesellschaft für Informatik e. V, 2017, pp. 203–214
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Der Beitrag beschreibt die Gestaltung, prototypische Umsetzung und Evaluation eines Reiseassistenzsystems mit Datenbrillen für intermodale Reiseketten im öffentlichen Verkehr. Die Grundlage bildet ein Szenario, welches die Reisekette ab der eigenen Haustür bis zum Gate an einem Flughafen darstellt und mehrere Verkehrsmittelwechsel sowie Fußwege beinhaltet. Die Datenbrille liefert dem Nutzer reiserelevante Informationen, die situations- und nutzergerecht dargestellt werden sollten. Der szenariobasierte Prototyp wurde für die Durchsichtdatenbrille Epson Moverio BT-200 entwickelt und in einer Laborstudie mit zwölf Probanden formativ evaluiert. Die Ergebnisse zeigen, dass die Nutzung eines Reiseassistenzsystems mit Datenbrillen, insbesondere in unbekannter Umgebung, als hilfreich erachtet wird.
Roßnagel, A.: Rechtsfragen eines Smart Data-Austauschs – Datengetriebene Kooperation in der Industrie. In: Neue juristische Wochenschrift vol. 70 (2017), pp. 10–15
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Rietsche, Roman ; Söllner, Matthias ; Seufert, Sabine:Digital formative learning assessment tool - Towards helping students to take ownership of their learning.. In: European Conference on Information Systems (ECIS). Guimarães, Portugal, 2017
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Over the last years, the number of students has constantly risen while the number of lecturers remained steady. To the consequence are large-scale classes with often hundreds of students. Large-scale classes have didactical challenges such as providing effective feedback for the students’ learning success. This is in particular problematic, since feedback belongs to the most influential factors for the student learning success. In order to overcome the challenges of providing feedback in large-scale classes, we suggest using an IT-based solution we label digital formative earning assessment tool (DFLAT). In this research-in-progress paper, we will show the development of this tool by using the method of action design research (ADR). More precisely, we will concentrate on the first part from the requirements gathering to the alpha-version. In order to collect the requirements, we conducted expert interviews with lecturers and students and also derived requirements from scientific literature. Based on the requirements, we will define the key design elements of the first version of DFLAT. The next steps in our research are then the intervention and evaluation of our alpha-version in a large-scale lecture. With our completed research, we aim to contribute to literature by developing a theory of design and action for providing individualized feedback for students in large-scale classes.
Rietsche, Roman ; Söllner, Matthias:The obvious and hidden values of IT-based peer assessment in management education.. In: Academy of Management Annual Meeting (AOM). Atlanta, Georgia, USA, 2017
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Durward, David ; Blohm, Ivo:I am a Crowd Worker - How Individuals Identify with a New Form of Digital Work.. In: European Conference on Information Systems (ECIS). Guimarães, Portugal, 2017
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Blazy, Stephan ; Gonscherowski, Susan ; Kunz, T. ; Selzer, Annika ; Waldmann, U.: Die vertrauenswürdige Verteilung von Verschlüsselungsschlüsseln als Hemmschuh der E-Mail-Verschlüsselung – ein Lösungsansatz. In: BvD-News (2017), Nr. 3, pp. 72–75
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Nebel, Maxi:Rechtswege und Rechtsbehelfe.. In: Roßnagel, A. (ed.): Europäische Datenschutz-Grundverordnung, Vorrang des Unionsrechts – Anwendbarkeit des nationalen Rechts. Baden-Baden : Nomos, 2017, pp. 100–107
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Mrass, Volkmar ; Peters, Christoph ; Leimeister, Jan Marco: Von Kunden für Kunden: Crowd Services als Erweiterung der Digital Customer Experience. In: HMD Praxis der Wirtschaftsinformatik vol. 54. Wiesbaden, Germany, Springer Fachmedien (2017), Nr. 5, pp. 821–837
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Die „Plattform-Ökonomie“ verändert gegenwärtig die Art und Weise, wie Arbeit erbracht wird. Insbesondere Crowdworking-Plattformen haben in den letzten Jahren starken Zulauf erfahren und können von Unternehmen mittlerweile für eine Vielzahl von Tätigkeiten entlang ihrer Wertschöpfungskette genutzt werden. Ein Beispiel ist der Kundensupport, dem angesichts immer komplexerer Endprodukte große Bedeutung zukommt. Anhand der Crowdworking-Plattform Mila und ihres Kunden und 51-prozentigen Eigentümers Swisscom AG wird in diesem Beitrag aufgezeigt, wie Unternehmen die Crowd zur Erweiterung ihrer digitalen Schnittstelle zum Kunden einsetzen, ihren Service ausbauen und damit Mehrwert für alle Beteiligten generieren können. Die Crowdworking-Plattform Mila verbindet in einem neuartigen Ansatz das Paradigma der Crowd, insbesondere die Nutzung einer Vielzahl von Leistungserbringern, mit den Prinzipien der On-Demand und Sharing-Economy, vor allem dem Einbezug der Kunden als Produzenten von Dienstleistungen. Ähnlich wie bei prominenten plattformbasierten Beispielen der Sharing Economy wie Airbnb und Uber erfolgt auch hier die Anbahnung der Arbeit sowie die Schnittstelle zum Kunden auf digitalem Wege, während die Arbeit selbst meist direkt vor Ort beim Kunden erbracht wird. Basierend auf Experten-Tiefen-Interviews mit Verantwortlichen von Mila und Swisscom und weiteren Quellen analysieren wir in diesem Beitrag dieses neuartige Arbeitssystem inklusive des Zusammenspiels aller Beteiligten. Im Anschluss daran zeigen wir Vor- und Nachteile der Nutzung von Crowd Services auf und leiten konkrete Handlungsempfehlungen für Unternehmen für die Gestaltung der digitalen Schnittstelle zum Kunden ab.
Schmidt, Nils ; Baumgärtner, Lars ; Lampe, Patrick ; Geihs, Kurt ; Freisleben, Bernd:MiniWorld: Resource-aware Distributed Network Emulation via Full Virtualization.. In: Proceedings of the 22nd IEEE Symposium on Computers and Communications. Heraklion, Greece, 2017
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Barlag, Charlotte:Anwendungsbereich der Datenschutz-Grundverordnung.. In: Roßnagel, A. (ed.): Europäische Datenschutz-Grundverordnung, Vorrang des Unionsrechts – Anwendbarkeit des nationalen Rechts. Baden-Baden : Nomos, 2017, pp. 108–118
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Barlag, Charlotte ; Büttner, Barbara ; Geminn, Christian ; Miedzianowski, Nadine:Datenschutz-Grundverordnung.. In: Baumann, J. ; Lamla, J. (eds.): Privacy-Arena. Kontroversen um Privatheit im digitalen Zeitalter. Kassel : Kassel University Press, 2017
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Baumann, J. ; Lamla, J. (eds.):Privacy Arena. Kontroversen um Privatheit im digitalen Zeitalter, 2017
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Hornung, Gerrit: Persönlichkeitsrechtliche Grenzen des presserechtlichen Auskunftsanspruchs. Normative Unterschiede, interpretatorische Einebnungen und Reformbedarf. In: AfP - Zeitschrift für Medien- und Kommunikationsrecht (2017), pp. 390–396
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Lurtz, Helmut: Das Tauziehen um die Ausgestaltung der ePrivacy-Verordnung. In: ZD-Aktuell (2017), Nr. 05707
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Hornung, Gerrit: Datensparsamkeit: Zukunftsfähig statt überholt. In: Spektrum SPEZIAL Physik Mathematik Technik vol. 1 (2017), pp. 62–67
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Löber, L. I.: DORIAN: Forschungsprojekt wird Desinformation im Internet aufdecken und bekämpfen. In: ZD-Aktuell (2017), Nr. 17, p. 05795
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Hornung, Gerrit: Buchbesprechung: Florian Schneider, Meldepflichten im IT-Sicherheitsrecht. Datenschutz, Kritische Infrastrukturen und besondere Dienste. In: Computer und Recht (2017), pp. R89-R90
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Hornung, Gerrit:Kommentierung von Art. 42, 43 DSGVO und § 9a BDSG.. In: Eßer, M. ; Kramer, P. ; v. Lewinski, K. (eds.): Auernhammer: Datenschutz-Grundverordnung, Bundesdatenschutzgesetz und Nebengesetze, Kommentar. 5. ed.. Köln : Carl Heymanns Verlag, 2017
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Schmidt, L. ; Luczak, H.:Gestaltung von Arbeitssystemen nach ergonomischen und gesundheitsförderlichen Prinzipien.. In: Spath, D. ; Westkämper, E. ; Bullinger, H.-J. ; Warnecke, H.-J. (eds.): Neue Entwicklungen in der Unternehmensorganisation. Berlin : Springer Vieweg, 2017, pp. 369–409
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Vor den Hintergrund rechtlicher Rahmenbedingungen werden Entwicklungstendenzen im Bereich Gesundheit bei der Arbeit sowie die grundlegenden Gestaltungsfelder Arbeitsstätte, Arbeitsplatz, Arbeitsumgebung, Arbeitsaufgaben, Arbeitszeit und Anforderungen besonderer Arbeitspersonengruppen beschrieben. Auf dieser Basis werden Methoden zur gesundheitsförderlichen Arbeitsgestaltung erläutert und mit konkreten Beispielen und Handlungsanleitungen hinterlegt. Abschließend werden Zusammenhänge zwischen Gesundheit und Wirtschaftlichkeit dargestellt.
Barlag, Charlotte:Datenschutz durch Technikgestaltung.. In: Roßnagel, A. (ed.): Europäische Datenschutz-Grundverordnung, Vorrang des Unionsrechts – Anwendbarkeit des nationalen Rechts. Baden-Baden : Nomos, 2017, pp. 172–179
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Schmidt, L.: Assistenzsysteme mit Augmented Reality. In: Rotary Club Kassel-Wilhelmshöhe, eingeladener Vortrag, Rotary Club Kassel-Wilhelmshöhe, eingeladener Vortrag.. Kassel (2017)
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Hofmann, LL.M. ; Johannes, LL.M.: DS-GVO: Anleitung zur autonomen Auslegung des Personenbezug. In: ZD vol. 5 (2017), pp. 221–226
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Hofmann, Kai: Was bedeutet das „Strucksche Gesetz“ für die Betroffenenrechte nach der Datenschutzreform?. In: ZD-Aktuell (2017), Nr. 05620
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Schmidt, L.: Mit FOPS zum Design for all. In: Interdisziplinäres Brown-Bag-Seminar Methoden und Modelle der IT-Gestaltung, Vortrag, Interdisziplinäres Brown-Bag-Seminar Methoden und Modelle der IT-Gestaltung, Vortrag.. Kassel (2017)
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Schlagwein, Daniel ; Conboy, Kieran ; Feller, Joseph ; Leimeister, Jan Marco ; Morgan, Lorraine: ‘‘Openness’’ with and without Information Technology: a framework and a brief history. In: Journal of Information Technology (JIT) vol. 32, Palgrave Macmillan UK (2017), Nr. 4, pp. 297–305
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Over the past two decades, openness (e.g. ‘open’ innovation, ‘open’ education and ‘open’ strategy) has been of increasing interest for researchers and of increasing relevance to practitioners. Openness is often deeply embedded in information technology (IT) and can be both a driver for and a result of innovative IT. To clarify the concept of “openness”, we provide an overview of the scope of cross-disciplinary research on openness. Based on this overview, we develop a framework of openness, which proposes a higher-order concept of “openness” characterised by transparency, access, participation and democracy. The framework further distinguishes open resources, open processes and the effects of opening on particular domains. To provide the historical context and to appreciate the role of IT in openness, we discuss two historical examples of openness: the introduction of an open science model in academia (openness without IT) and the emergence of open source software development (openness with IT). We conclude by highlighting some concerns with and limitations of “openness”.
Maier, Natalie: Der Beschäftigtendatenschutz nach der Datenschutz-Grundverordnung - Getrennte Regelungen für den öffentlichen und nicht öffentlichen Bereich. In: Datenschutz und Datensicherheit vol. 41 (2017), Nr. 3, pp. 169–174
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Maier, Natalie ; Ossoinig, Verena: Forschungsprojekt: „Always Online? – ein neues Kommunikationsparadigma für die Kommunikationsgesellschaft (Social Link)“. In: ZD-Aktuell (2017), Nr. 21
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Maier, Natalie ; Ossoinig, Verena:Beschäftigtendatenschutz.. In: Roßnagel, A. (ed.): Das neue Datenschutzrecht - Europäische Datenschutz-Grundverordnung und deutsche Datenschutzgesetze. Baden-Baden : Nomos, 2017, pp. 338–347
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Maier, Natalie ; Schaller, Fabian: ePrivacy-VO – alle Risiken der elektronischen Kommunikation gebannt? Entwurf ohne datenschutzrechtliche Regelungen für P2P-Kommunikationsdienste. In: Zeitschrift für Datenschutz vol. 7 (2017), Nr. 8, pp. 373–377
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Maier, Thomas ; Gronich, Sebastian ; Rickert, Ann-Katrin ; Lipusch, Nikolaus:Text Mining in Ideencommunities: Gestaltungsempfehlungen eines Text Mining Artefakts zur Unterstützung der Ideenevaluation.. In: 13th International Conference on Wirtschaftsinformatik (WI). St. Gallen, Switzerland, 2017
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Barlag, Charlotte:Datensicherheit.. In: Roßnagel, A. (ed.): Europäische Datenschutz-Grundverordnung, Vorrang des Unionsrechts – Anwendbarkeit des nationalen Rechts. Baden-Baden : Nomos, 2017, pp. 165–172
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Barlag, C. ; Büttner, B. ; Geminn, C. ; Miedzianowski, N.:Datenschutz-Grundverordnung – Die Auseinandersetzungen um die Zukunft des Europäischen Datenschutzes.. In: Lamla, J. ; Baumann, J. (eds.): Privacy-Arena – Kontroversen um Privatheit im digitalen Zeitalter : Kassel University Press, 2017 — ISBN 978-3-7376-0306-5, pp. 114–189
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Marschall, Kevin ; Blazy, Stephan: Unsicheres Fahrwasser? - DSGVO: Praxistipps für Start-ups. In: Datenschutz PRAXIS (2017), Nr. 5, pp. 8–11
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Schneider, Katharina ; Reinke, Kathrin ; Gerlach, Gisela ; Anderson, Christoph ; Wojtek, Sebastian ; Neitzel, Svenja ; Dwarakanath, Rahul ; Boehnstedt, Doreen ; et al.:Aligning ICT-enabled Availability and Individual Availability Preferences: Design and Evaluation of Availability Management Applications.. In: Proceedings of the Thirty Eighth International Conference on Information Systems. Seoul, South Korea : InTech, 2017, pp. 1–19
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ICT-enabled availability has both beneficial and detrimental outcomes for users. To limit detrimental effects, employers and providers of ICT-based services offer solutions focusing on restricting the extent of availability. Yet, such approaches might hinder users from benefiting from advantages of availability. Following principles of design science research, we develop a technological solution that more accurately reflects the complexity of individuals’ availability preferences. Results of a qualitative and quantitative study provide requirements on the technological solution. In three iterations we develop two smartphone applications: Availability- Manager and Availability-Monitor. We evaluate the applications in a five- week field study with 31 participants using the applications and a control group (N = 55). Results indicate that the applications may contribute to increases in users’ life balance and reductions in exhaustion and stress levels. Implications for a more fine-grained, individual-customized availability management that allows greater alignment between individual availability preferences and actual availability are discussed.
Schuster, Florian ; Dellermann, Dominik ; Popp, Karl Michael: Integration von Geschäftsmodellen-Implikationen für Theorie und Praxis. In: M&A Review vol. 10/2017 (2017), Nr. 28, pp. 343–349
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Ochs, Carsten: Rechnende Räume: Zur informationellen Transformation räumlicher Privatheiten. In: Henkel, A. ; Laux, H. ; Schützeichel, R. (eds.) Zeitschrift für Theoretische Soziologie, Sonderausgabe „Raum&Zeit“ (2017)
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Atzmueller, Martin ; Schmidt, Andreas ; Kloepper, Benjamin ; Arnu, David:HypGraphs: An Approach for Analysis and Assessment of Graph-Based and Sequential Hypotheses.. In: New Frontiers in Mining Complex Patterns. Postproceedings NFMCP 2016, LNAI. vol. 10312. Berlin/Heidelberg, Germany : Springer Verlag, 2017
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Jahn, Andreas ; Kroll, Dennis ; Lau, Sian Lun ; David, Klaus:An Activity History based Approach for Recognizing the Mode of Transportation.. In: Proceedings of the IEEE Conference on Open Systems (ICOS). Miri, Sarawak, Malaysia : IEEE, 2017, pp. 1–5
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By understanding a person's context, smart assistant systems aim to simplify and automate tasks. One type of useful context information is the mode of transportation. Commonly, the mode of transportation is recognized by analyzing raw sensor data of mobile devices, such as a smartphone. However, fine-grained sampling and collecting sensor data at high frequency to analyze raw sensor data is also conducted by activity recognition systems. These systems have been shown to accurately recognize activities such as sitting, standing, or walking. This means several systems analyze raw data for their needs. In our opinion, this doubled use of resources should be avoided. In this paper, we propose an approach, which avoids doubled raw sensor data analysis by taking advantage of the already available information of a person's activity. As a hypothesis, the approach assumes that observed activity sequences can lead to the mode of transportation. Thus, we aim to map activity sequences to modes of transportation. Applying the proposed approach, we show that the three different modes of transportation car, tram, and bus are recognized with an accuracy of up to 97%.
Jahn, Andreas ; Bachmann, Marek ; Wenzel, Philipp ; David, Klaus:Focus on the User: A User Relative Coordinate System for Activity Detection.. In: Brézillon, P. ; Turner, R. ; Penco, C. (eds.): Modeling and Using Context: Proceedings of the 10th International and Interdisciplinary Conference, CONTEXT 2017. Cham, Switzerland : Springer International Publishing, 2017 — ISBN 978-3-319-57837-8, pp. 582–595
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The information about a person's activity, as a special type of contextual information, can be used for a multitude of applications. Thus, activity detection is a focus in research. For activity detection, usually measured sensor data are processed and matched to known activities. Unfortunately, measured sensor data can be inconsistent for the same activity. Depending on the device orientation and in which direction of compass the user is heading (while carrying out an activity) the sensor data changes. As a result, expected values on one sensor axis appear on another one and it is challenging for a pre-generated activity detection model to match the sensor data to the activity. However, the intuitive solution seems to be easy: focus on the user. Regardless of the device orientation or the cardinal direction, the activity never change for the user. In this paper, we present an approach to focus on the user in activity detection. We convert sensor data into a representation relative to the user. Thus, the sensor data stay consistent regardless of the device orientation or the cardinal direction. We show that by using the focus on the user approach the detection rates increase up to 21.7%. Also, the detection is more reliable (lower standard deviation). We prove the reliable activity detection for different device orientations, cardinal directions, types of algorithms, sensor sets, activities, and sensor positions.
Jahl, Alexander ; Baraki, Harun ; Tran, Huu Tam ; Kuppili, Ramaprasad ; Geihs, Kurt:Lifting Low-Level Changes through User-Defined Graph-Rule-Based Patterns.. In: Proceedings of the 17th IFIP International Conference on Distributed Applications and Interoperable Systems: DAIS : Springer, 2017 — ISBN 978-3-319-59665-5, pp. 115–128
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In dynamic service-oriented architectures, services and service compositions underlie constant evolution that may not only affect the own workflow but dependent services too. Subsequently, required adaptations necessitate an effective detection of the changes and their effects. Merely capturing a sequence of low-level changes and analyzing each of them demands much coordination and may lead to an incomplete picture. An abstraction that summarizes a combination of low-level changes will facilitate the detection and reduce the number of changes that shall be considered for adaptation. In this paper, we propose an abstraction that is formulated through graph-based patterns, since service compositions are workflows that can be mapped to directed labeled graphs. The characteristics and granularity of a graph pattern can be adjusted by domain experts to the respective workflow language and application case. In particular, graph-based patterns are crucial when workflows are represented in two different formats. This could be the case if there exists one representation for the execution and one for the verification. We present implementation details and a detailed example that shows the feasibility and simplicity of our solution.
Atzmueller, Martin ; Sternberg, Eric:Mixed-Initiative Feature Engineering Using Knowledge Graphs.. In: Proc. 9th International Conference on Knowledge Capture (K-CAP). New York, NY, USA : ACM Press, 2017
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Atzmueller, Martin ; Thiele, Lisa ; Stumme, Gerd ; Kauffeld, Simone:Contact Patterns, Group Interaction and Dynamics on Socio-Behavioral Multiplex Networks.. In: Proc. Annual Machine Learning Conference of the Benelux (Benelearn 2017). Eindhoven, The Netherlands : Eindhoven University of Technology, 2017
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Bachmann, M. ; Morold, M. ; David, K.:Improving Smartphone Based Collision Avoidance by Using Pedestrian Context Information.. In: Proceedings of the 2017 IEEE International Conference on Pervasive Computing and Communications Workshops (PerCom {Workshops}). Kona, HI, USA : IEEE, 2017, pp. 2–5
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Pedestrians globally comprise 22 % of all road traffic deaths in 2013. Various approaches for reducing accident numbers have already been introduced and are still being researched. Most of these approaches have specific limitations, like requiring line of sight. To overcome these limitations, we propose the Wireless Seat Belt (WSB), a smartphone-based collision avoidance system for pedestrians. Unlike other systems, the WSB uses context information, obtained from a pedestrian's smartphone, not only as additional information but also for using the information to improve the collision detection accuracy. The WSB introduces independent, individual modules for recognizing the pedestrian's direction, position, and speed. We first evaluate the influence of the measurement errors of each module on the missed alarm probability in a typical urban collision scenario using a simulator. Then, the impact of using the pedestrian's context to decrease the missed alarm probability is evaluated. The evaluation is done using the example of a curb detection module. The curb detection is used to infer that the pedestrian has stepped onto the street to correct the pedestrian's position. The results show a decrease of the missed alarm probability by 46.5 % in the scenario considered.
Li, Mahei Manhai ; Peters, Christoph ; Leimeister, Jan Marco:Designing a peer-based support system to support shakedown.. In: International Conference on Information Systems (ICIS). Seoul, South Korea, 2017
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Hornung, Gerrit ; Hofmann, Kai:Rechtsfragen der Industrie 4.0: Rahmenbedingungen, Herausforderungen und Lösungsansätze.. In: Handbuch Industrie 4.0. Geschäftsmodelle, Prozesse, Technik. München : Carl Hanser Verlag GmbH & Co. KG, 2017, pp. 191–212
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Schneider, Jana ; Schindler, Stephan: FLORIDA: Forschungsprojekt zur Auswertung von Videomassendaten im Kontext der Terrorismusbekämpfung. In: ZD-Aktuell (2017), Nr. 05530
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Schneider, Jana ; Schindler, Stephan: „Intelligente Videoüberwachung“ in Baden-Württemberg. In: ZD-Aktuell (2017), Nr. 05902
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Lier, Florian ; Lücking, Phillip ; de Leeuw, Joshua ; Wachsmuth, Sven ; Šabanović, Selma ; Goldstone, Robert:Can we Reproduce it? Toward the Implementation of good Experimental Methodology in Interdisciplinary Robotics Research.. In: Bonsignorio, F. P. (ed.): ICRA 2017 Workshop on Reproducible Research in Robotics: Current Status and Road Ahead : IEEE, 2017
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The insufficient level of reproducibility of pub-lished experimental results has been identified as acore issuein the field of robotics in recent years. Why is that? First ofall, robotics focuses on the abstract concept of computationand thecreationof technological artifacts, i.e., software thatimplements these concepts. Hence, before actually reproducingan experiment, the subject of investigation must beartificiallycreated, which is non-trivial given the inherent complexity [5].Second, robotics experiments usually include expensive andoften customized hardware setups (robots), that are difficultto operate for non-experts. Finally, there is no agreed uponset of methods in order to setup, execute, or (re-)conduct anexperiment.To this end, we introduce an interdisciplinary and geograph-ically distributed collaboration project that aims at implement-ing good experimental methodology in interdisciplinary roboticsresearch with respect to: a) reproducibility of required technicalartifacts, b) explicit and comprehensible experiment design, c)repeatable/reproducible experiment execution, and d) repro-ducible evaluation of obtained experiment data. The ultimategoal of this collaboration is to reproduce thesameexperiment intwo different laboratories using the same systematic approachwhich is presented in this work.
Lipusch, Nikolaus ; Bretschneider, Ulrich ; Leimeister, Jan Marco:Crowdfunding zur Gründungsfinanzierung von Start-ups aus dem universitären Bereich.. In: Crowd Entrepreneurship: Das Gründungsgeschehen im Wandel : Springer Gabler, 2017, pp. 189–215
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Lipusch, Nikolaus ; Dellermann, Dominik ; Ebel, Philipp:Using crowdfunding for start-up evaluation: How task representation influences prediction accuracy of the crowd.. In: European Conference on Information Systems (ECIS). Guimarães, Portugal, 2017
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Lipusch, Nikolaus ; Dellermann, Dominik ; Kleinschmidt, Stefan ; Ebel, Philipp ; Leimeister, Jan Marco:Towards Developing a Service Innovation Canvas.. In: Pre-ICIS Workshop on Service Science: Towards Digital Service Innovation. Seoul, South Korea, 2017
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Hornung, Gerrit ; Schindler, Stephan:Zivile Sicherheit als Gegenstand und Ziel der Informations- und Kommunikationsverarbeitung.. In: Gusy, C. ; Kugelmann, D. ; Würtenberger, T. (eds.): Rechtshandbuch Zivile Sicherheit. Berlin : Springer, 2017, pp. 247–271
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Hornung, Gerrit ; Schindler, Stephan: Das biometrische Auge der Polizei. Rechtsfragen des Einsatzes von Videoüberwachung mit biometrischer Gesichtserkennung. In: Zeitschrift für Datenschutz (2017), pp. 203–209
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Lipusch, Nikolaus ; Ebel, Philipp ; Dellermann, Dominik ; Bretschneider, Ulrich:Customer Feedback for Startups – A Process Model and Research Agenda.. In: ISPIM Innovation Conference. Vienna, Austria, 2017
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Hornung, Gerrit ; Hofmann, Kai: Die Auswirkungen der europäischen Datenschutzreform auf die Markt- und Meinungsforschung. In: Zeitschrift für Datenschutz vol. 4 (2017), pp. 1–16
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Marschall, Kevin:Datenschutz-Folgenabschätzung und Dokumentation.. In: Roßnagel, A. (ed.): Europäische Datenschutz-Grundverordnung, Vorrang des Unionsrechts – Anwendbarkeit des nationalen Rechts. Baden-Baden : Nomos, 2017, pp. 155–164
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Benner-Tischler, Anja: DREI: Forschungsprojekt zur datenschutzkonformen Erkennung von Innentätern durch Softwaresysteme. In: ZD-Aktuell (2017), Nr. 05556
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Hempel, M. ; Wörner, M. ; Letzing, S. ; Hegenberg, J. ; Herrmann, R. ; Ziegner, D. ; Schmidt, L. ; Ordóñez Müller, A. ; et al.: Robotair. In: Schlussbericht des BMBF-Projektes, Schlussbericht des BMBF-Projektes.. Kassel (2017)
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Das Ziel des Forschungsprojektes Robotair war die Entwicklung und Evaluation eines prototypischen, kostengünstigen Boden-Luft-Servicerobotersystems für die Detektion und Ortung von Druckluftleckagen zwecks nachhaltiger Ressourcen- und Energienutzung sowie für die Erfassung von Arbeitsumgebungsfaktoren zur Sicherstellung gesunder Arbeitsbedingungen und Steigerung der Produktivität. Durch die regelmäßige Inspektion von Druckluftanlagen werden frühzeitig Leckagen entdeckt, dadurch Verluste und der Primärenergieeinsatz verringert, was sich wiederum positiv auf den CO2-Ausstoß und das Klima auswirkt. Aufgrund schlechter räumlicher Erreichbarkeit, geringer Produktrelevanz und geringer Energiekosten wurde dies bisher oft vernachlässigt. Auch in der Gebäudetechnik sollten durch roboterbasierte, multimodale Kartierung der klimatischen Lokalsituation Einsparmöglichkeiten identifiziert und realisiert werden und gleichzeitig ein Beitrag zur Erfassung und Verbesserung der Arbeitsumgebungsbedingungen geleistet werden. In verschiedenen Studien wurden die wirtschaftliche Signifikanz und der große adressierbare Markt dokumentiert, wie auch eine Potentialabschätzung der Volkswagen AG und eine Kostenabschätzung der Forschungspartner auf Basis der EFFIROB-Systematik zeigte. Innerhalb des Forschungsprojektes wurden Anforderungen erhoben und ein Systemprototyp erstellt, dessen robuste Funktionsweise und Gebrauchstauglichkeit im Labor und in Feldstudien in der Automobilindustrie evaluiert wurde.
Mrass, Volkmar ; Peters, Christoph ; Leimeister, Jan Marco:Work Organization in Online Platform Ecosystems.. In: International Conference on Information Systems (ICIS). Seoul, South Korea, 2017
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Heissler, Clara ; Ohly, Sandra:Is ICT use the cause or result of reduced detachment? Investigating reversed causality in a diary study with a cross-lagged panel design.. In: Proceedings of the 18th EAWOP Congress 2017 - Enabling Change through Work and Organizational Psychology, 2017, p. 610
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Purpose: Studies on the risks of work-related ICT use after hours often emphasize detrimental effects on detachment. The reversed causal effect – insufficient detachment leading to work-related ICT use – has not yet been examined. However, research would benefit from investigating bidirectional or reversed relationships to broaden our understanding of causes and risks of work-related ICT use during leisure time. Design/Methodology: Using a daily diary study design, data were collected from 134 German knowledge workers who completed three daily surveys during evening hours of 5 consecutive work days. Participants provided information on duration and intensity of work-related ICT use after work as well as their level of detachment on the second and third survey ensuring a cross-lagged panel design for each day. Results: Regression analysis supports the notion that failing to properly detach from work can lead to subsequent work-related ICT use. Limitations: The present study measured all constructs using self-reports and did not consider work-related ICT use on weekends/ during vacation. Research/Practical Implications: Considering the results future diary studies on ICT use and detachment should be mindful of bidirectional effects and investigate factors that moderate directionality between those variables Originality/Value: Using a diary study with a cross-lagged panel design this study discards the assumption that insufficient detachment is invariably the result of work-related ICT use and provides evidence for reversed causality. The short time lag reveals the dynamic between detachment and ICT within evenings.
Herrmann, R. ; Schmidt, L.:Gestaltung und Evaluation einer natürlichen Flugrobotersteuerung.. In: Burghardt, M. ; Wimmer, R. ; Wolff, C. ; Womser-Hacker, C. (eds.): Mensch und Computer 2017 - Tagungsband (Regensburg 2017). Bonn : Gesellschaft für Informatik e. V, 2017, pp. 147–158
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In diesem Beitrag wird ein neues Bedien- und Anzeigekonzept für die Steuerung eines Flugroboters vorgestellt, welches die Microsoft HoloLens-Datenbrille und das Thalmic Myo-Armband verwendet. Mit diesen wurde eine Augmented-Reality-Text- und Audioausgabe, eine vibrotaktile Rückmeldung sowie eine Sprach- und Gesteneingabe implementiert. Das neue multimodale Interaktionskonzept wurde schließlich in einer Nutzerstudie mit 30 Probanden evaluiert und in diesem Kontext mit einer traditionellen Remote Control verglichen.
Heissler, Clara ; Ohly, Sandra:Evaluation eines Führungskräfte-Trainings zur effektiven Kommunikation von IKT-Erreichbarkeitserwartungen.. In: Proceedings of the 10. Tagung der Fachgruppe Arbeits-, Organisations- und Wirtschaftspsychologie (AOW) der Deutschen Gesellschaft für Psychologie (DGPs) in Dresden, 2017, p. 259
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Fragestellung. Die Zufriedenheit mit der beruflichen Kommunikation mit Hilfe von Informations- und Kommunikationstechnologien (IKT) außerhalb der Arbeitszeiten hängt damit zusammen, ob die eigene Führungskraft ihre Erwartungen bezüglich der erweiterten Erreichbarkeit klar kommuniziert. Häufig ist Führungskräften der eigene Einfluss auf das Nutzungsverhalten der Mitarbeiter nicht bewusst und eine Klärung der Erwartungen findet nur selten statt. Diese Studie verfolgt das Ziel, ein Führungskräfte-Training zur effektiven Kommunikation von Erreichbarkeitserwartungen zu konzipieren und durch eine Befragung der direkt unterstellten Mitarbeiter zu evaluieren. Untersuchungsdesign. Das fünfstündige Präsenz-Training unterstützt Führungskräfte dabei, ihre eigene Rolle für das IKT-Nutzungsverhalten ihrer Mitarbeiter kennenzulernen, Erreichbarkeitserwartungen zu definieren, und diese verständlich an ihre Mitarbeiter zu kommunizieren. Ergebnisse. Die Datenerhebung erfolgt mittels Pretest-Posttest Design in zwei Unternehmen (T1 ca. 1 Woche vor und T2 ca. 6 Wochen nach dem Training), wobei zu beiden Zeitpunkten die direkt unterstellten Mitarbeiter der Teilnehmer befragt werden. Die Datenerhebung endet im Sommer 2017. Es wird erwartet, dass die Führungskräfte nach dem Training ihre Erwartungen an ihre Mitarbeiter kommunizieren. Diese können dadurch besser einschätzen, was von ihnen erwartet wird und sind zufriedener mit der beruflichen IKT-Kommunikation. Limitationen. Die Teilnahme am Training íst freiwillig und es liegt keine Kontrollgruppe vor. Daher ist die interne Validität eingeschränkt. Theoretische/Praktische Implikationen. Die Studie verdeutlicht den Einfluss der Führungskraft für den Umgang mit IKT im beruflichen Kontext. Das Training stellt eine praxisnahe Möglichkeit dar, Führungskräfte im Umgang mit IKT zu sensibilisieren und in ihrer Aufgabe der gesundheitsförderlichen Führung zu stärken. Relevanz/Beitrag. Insbesondere im Kontext der beruflichen IKT-Nutzung liegen bisher nur wenige Trainingskonzepte vor, die zumeist auf individuelle Einflussmöglichkeiten fokussieren.
Mrass, Volkmar ; Peters, Christoph ; Leimeister, Jan Marco: From customers for customers: Crowd services as an extension of the digital customer experience. In: HMD Praxis der Wirtschaftsinformatik vol. 54 (2017), Nr. 5, pp. 821–837
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The “Platform Economy” is currently changing the way how work is performed. Particularly, crowdworking platforms have gained momentum during the last years. By now, they can be used by companies for a wide range of activities along their value chain. One example is the customer support that increasingly gains importance given the more and more complex end products. Based on the crowdworking platform Mila and its client and 51-percent owner Swisscom AG, we demonstrate how companies that use the crowd extend their digital interface to the customer and expand their services, generating an added value for all those involved. With its innovative approach, the crowdworking platform Mila connects the paradigm of the crowd, particularly the utilization of a variety of providers, with the principles of the On Demand- and Sharing Economy, primarily the inclusion of the customers as service “producers”. Similarly to well-known platform-based examples of the Sharing Economy such as Airbnb and Uber, the initiation of work and the customer interface is shaped in a digital way, though the work itself is then usually performed directly on site at the customer’s. Based on in-depth expert interviews with those responsible of Mila and Swisscom, we analyze this new kind of work system including the interplay of all participants. Subsequently, we show advantages and disadvantages of using crowd services and derive concrete recommendations of action for companies for the design of the digital customer interface.
Mrass, Volkmar ; Durward, David ; Peters, Christoph:Crowdsourcing-Plattformen als innovative Dienstleistungssysteme – Gestaltung und Optimierung interdependenter Wertschöpfungsprozesse in der Cloud.. In: Herausforderung Cloud und Crowd - Literaturreport, 2017, pp. 16–25
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Miedzianowski, Nadine: S@NDRA: Neues Forschungsprojekt zur ständigen Erreichbarkeit in der digitalisierten Arbeitswelt. In: ZD-Aktuell (2017)
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Herfurth, Constantin ; Wagner, Bernd:Kapitel 9.4: Entscheidungsunterstützung mit Künstlicher Intelligenz. Wirtschaftliche Bedeutung, gesellschaftliche Herausforderungen, menschliche Verantwortung.. In: Sicht des Datenschutzrechts. Berlin, 2017, pp. 132–138
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Herfurth, Constantin ; Engel, Friederike: Codes of Conduct im Konzern? Verhaltensregeln von Unternehmensgruppen nach Art. 40 DS-GVO. In: Zeitschrift für Datenschutz (2017), pp. 367–372
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Mrass, Volkmar ; Peters, Christoph:Crowdworking-Plattformen in Deutschland.. In: Leimeister, J. M. (ed.): Working Paper Series, Nr. 16. Kassel, Germany, 2017
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Meurisch, Christian ; Nguyen, The An Binh ; Wulkotte, Stefan ; Niemczyk, Stefan ; Kohnhäuser, Florian ; Mühlhäuser, Max:NICER911: Ad-hoc Communication and Emergency Services Using Networking Smartphones and Wireless Home Routers.. In: Proceedings of the 18th International Symposium on Mobile Ad Hoc Net-working and Computing (MobiHoc 2017). Madras, Chennai, India, 2017
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Mrass, Volkmar ; Li, Mahei Manhai ; Peters, Christoph:Towards a taxonomy of digital work.. In: European Conference on Information Systems (ECIS). Guimarães, Portugal, 2017
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Schindler, Stephan: Noch einmal: Pilotprojekt zur intelligenten Videoüberwachung am Bahnhof Berlin Südkreuz. In: ZD-Aktuell (2017), Nr. 05799
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Herrmann, R. ; Schmidt, L.:Natürliche Benutzungsschnittstelle zur Steuerung eines Flugroboters.. In: Burghardt, M. ; Wimmer, R. ; Wolff, C. ; Womser-Hacker, C. (eds.): Mensch und Computer 2017 - Workshopband (Regensburg 2017). Bonn : Gesellschaft für Informatik e. V, 2017, pp. 637–640
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Flugroboter werden immer populärer und in immer mehr Alltagsszenarien eingesetzt. Dies forciert den Bedarf nach intuitiven und gebrauchstauglichen Steuerungen. Wir demonstrieren eine entworfene natürliche Benutzungsschnittstelle zur Steuerung eines Flugroboters, die in einer Benutzerstudie mit einer traditionellen Steuerung verglichen wurde. Hierfür verwenden wir ein bewegungserkennendes Armband und eine Microsoft HoloLens für die visuelle und auditive Ausgabe von Rückmeldungen und die Steuerung des Flugroboters über die Kopfneigung des Benutzers. Weitere Informationen zu der entworfenen natürlichen Benutzungsschnittstelle, sowie Ergebnisse der Benutzerstudie sind im dazugehörigen Langbeitrag (Herrmann \& Schmidt, 2017) beschrieben.
Mrass, Volkmar ; Peters, Christoph ; Leimeister, Jan Marco:One for All? Managing External and Internal Crowds through a Single Platform - A Case Study.. In: Hawaii International Conference on System Sciences (HICSS). Waikoloa, HI, USA, 2017
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Mrass, Volkmar ; Peters, Christoph ; Leimeister, Jan Marco:Anreiz- und Vergütungsmodelle auf Crowdworking-Plattformen als innovativen Dienstleistungssystemen.. In: Jahrestagung der Wissenschaftlichen Kommission Dienstleistungsmanagement (WK DLM) des Verbands der Hochschullehrer für Betriebswirtschaft e.V.. Leipzig, Deutschland, 2017
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Herfurth, Constantin ; Benner-Tischler, Anja: Nudging in der DS-GVO und die Wirkung von Privacy by Default. In: ZD-Aktuell vol. 21 (2017), Nr. 05901
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Herfurth, Constantin: Verfassungsbeschwerde gegen Straftatbestand der Datenhehlerei (§ 202d StGB). In: ZD-Aktuell (2017), Nr. 05490
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Herfurth, Constantin: Buchbesprechung: Peter Schantz / Heinrich Amadeus Wolff, Das neue Datenschutzrecht. Datenschutz-Grundverordnung und Bundesdatenschutzgesetz in der Praxis. In: ZD-Aktuell (2017), Nr. 04268
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Herfurth, Constantin: Chancen und Risiken des Einsatzes digitaler Bildforensik. Aufdeckung und Beweisbarkeit von Versicherungsbetrug aus rechtlicher, technischer und psychologischer Sicht. In: Multimedia und Recht (2017), pp. 152–157
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Bile, Tamer:"Zertifizierung".. In: Roßnagel, A. (ed.): Das neue Datenschutzrecht - Europäische Datenschutz-Grundverordnung und deutsche Datenschutzgesetze. Baden-Baden : Nomos, 2017, pp. 211–220
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Bile, T. ; Grigorjew, O.: Forum Privatheit und selbstbestimmtes Leben in einer Digitalen Welt - Phase II. In: ZD-Aktuell (2017), Nr. 7, p. 05557
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Birke, Robert ; Cámara, Javier ; Chen, Lydia Y ; Esterle, Lukas ; Geihs, Kurt ; Gelenbe, Erol ; Giese, Holger ; Robertsson, Anders ; et al.:Self-aware Computing Systems: Open Challenges and Future Research Directions.. In: Self-Aware Computing Systems : Springer, 2017, pp. 709–722
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Heck, Henner ; Kieselmann, Olga ; Wacker, Arno:Evaluating Connection Resilience for the Overlay Network Kademlia.. In: 37th IEEE International Conference on Distributed Computing Systems (ICDCS 2017). Atlanta, GA, USA : IEEE Computer Society, 2017, pp. 2581–2584
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Kademlia is a decentralized overlay network, up to now mainly used for highly scalable file sharing applications. Due to its distributed nature, it is free from single points of failure. Communication can happen over redundant network paths, which makes information distribution with Kademlia resilient against failing nodes and attacks. In this paper, we simulate Kademlia networks with varying parameters and analyze the number of node-disjoint paths. With our results, we show the influence of these parameters on the network connectivity and, therefore, the resilience against failing nodes and communication channels.

2016[ to top ]

Lamla, Jörn:Exzessiver Konsum: Was behindert die Erfahrung von Endlichkeit? Antworten der soziologischen Theorie.. In: Bihrer, A. ; Franke-Schwenk, A. ; Stein, T. (eds.): Endlichkeit. Zur Vergänglichkeit und Begrenztheit von Mensch, Natur und Gesellschaft. Bielefeld : Transcript, 2016, pp. 221–242
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Roßnagel, A.:Die arbeitsteilige Bearbeitung von Gesundheitsdaten und Datenverantwortung.. In: Spieker gen. Döhmann, I. ; Wallrabenstein, A. (eds.): IT-Entwicklungen im Gesundheitswesen: Herausforderungen und Chancen : Internationaler Verlag der Wissenschaften, 2016, pp. 89–118
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Roßnagel, A.:Anwendungsvorrang des Unionsrechts.. In: Roßnagel, A. (ed.): Europäische Datenschutz-Grundverordnung – Vorrang des Unionsrechts – Anwendbarkeit des nationalen Rechts : Nomos, 2016, pp. 67–77
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Peters, Christoph:Modularization of Services - A Modularization Method for the Field of Telemedicine, Kassel University Press, Kassel, Germany, 2016
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Li, Mahei Manhai ; Peters, Christoph ; Leimeister, Jan Marco:Digitale Service-Systeme.. In: Gassmann, O. ; Sutter, P. (eds.): Digitale Transformation im Unternehmen gestalten. München : Carl Hanser Verlag, 2016, pp. 29–38
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Roßnagel, A.:Zur Reichweite der staatlichen Verantwortung für Teilhabe in der digitalen Zeit.. In: Fehling, M. ; Schliesky, U. (eds.): Neue Macht- und Verantwortungsstrukturen in der digitalen Welt : Nomos, 2016, pp. 71–93
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Lipusch, Nikolaus ; Bretschneider, Ulrich:Get the Balance Right: Can Normative Appeals Encourage Funders to Support Selected Crowdfunding Campaigns?. In: European Conference on Information Systems (ECIS). Istanbul, Turkey, 2016
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Krcmar, H. ; Leimeister, J. ; Roßnagel, A. ; Sunyaev, A. (eds.):Cloud-Services aus der Geschäftsperspektive. Wiesbaden : Springer Gabler, 2016
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Söllner, Matthias ; Benbasat, Izak ; Gefen, David ; Leimeister, Jan Marco ; Pavlou, Paul A.: Trust. In: MIS Quarterly Research Curations, Ashley Bush and Arun Rai, Eds. (2016)
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Peters, Christoph ; Maglio, Paul ; Badinelli, Ralph ; Harmon, Robert R. ; Maull, Roger ; Spohrer, James C. ; Tuunanen, Tuure ; Vargo, Stephen L. ; et al.: Emerging Digital Frontiers for Service Innovation. In: Communications of the Association for Information Systems (CAIS) vol. 39 (2016), Nr. 1, p. Article 8
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Zukunftsfähigkeit der Datenschutz-Grundverordnung.. In: Roßnagel, A. (ed.) Datenschutz und Datensicherheit vol. 40 (2016), pp. 553–554
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Lipusch, Nikolaus ; Bretschneider, Ulrich ; Leimeister, Jan Marco:Backer Empowerment in Crowdfunding: How Participation beyond Funding Influences Support Behavior.. In: Pre-ICIS Workshop on the Digitization of the Individual (DOTI). Dublin, Ireland, 2016
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Schöbel, Sofia ; Söllner, Matthias ; Leimeister, Jan Marco:The Agony of Choice – Analyzing User Preferences regarding Gamification Elements in Learning Management Systems.. In: International Conference on Information Systems (ICIS). Dublin, Ireland, 2016
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Kunz, Michael ; Ebel, Philipp ; Leimeister, Jan Marco:Marktunterstützung durch Open-Service-Innovation.. In: Krcmar, H. ; Leimeister, J. M. ; Roßnagel, A. ; Sunyaev, A. (eds.): Cloud-Services aus der Geschäftsperspektive. Wiesbaden : Springer Gabler, 2016, pp. 359–368
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Richter, Philipp ; Matzner, Tobias: Tagungsbericht: Interdisziplinäre Konferenz des vom BMBF geförderten Forums Privatheit und selbstbestimmtes Leben in der digitalen Welt: „Die Zukunft der informationellen Selbstbestimmung“, am 26. und 27. November in Berlin. In: Datenschutz und Datensicherheit (2016), p. 190
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Lamla, Jörn:The Social Bond of Consumer Citizens. Exploring Consumer Democracy with Actor-Network-Pragmatism.. In: Mackert, J. ; Turner, B. S. (eds.): The Transformation of Citizenship. vol. Vol. 1: The Political Economy. London/ New York : Routledge, 2016
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Lemmerich, Florian ; Atzmueller, Martin ; Puppe, Frank: Fast Exhaustive Subgroup Discovery with Numerical Target Concepts. In: Data Mining and Knowledge Discovery vol. 30 (2016), pp. 711–762
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Leicht, Niklas ; Blohm, Ivo ; Leimeister, Jan Marco:How to Systematically Conduct Crowdsourced Software Testing? Insights from an Action Research Project.. In: International Conference on Information Systems (ICIS). Dublin, Ireland, 2016
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Leicht, Niklas ; Durward, David ; Haas, Philipp ; Zogaj, Shkodran ; Blohm, Ivo ; Leimeister, Jan Marco:An Empirical Taxonomy of Crowdsourcing Intermediaries.. In: Academy of Management Annual Meeting (AOM). Anaheim, California, 2016
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Seeger, M. ; Stein, T. ; Borys, B.-B. ; Schmidt, L.:Untersuchung der typischen Fingerkräfte bei der Eingabe auf einer stationären Touchscreen-Oberfläche.. In: Gesellschaft für Arbeitswissenschaft e. V. (ed.): Arbeit in komplexen Systemen - Digital, vernetzt, human?! 62. Kongress der Gesellschaft für Arbeitswissenschaft (Aachen 2016). Dortmund : GfA-Press, 2016, pp. 1–6 (A.4.20)
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Um Nutzern von Touchscreens das gewohnte Gefühl von mechanischen Tasten wiederzugeben, können künstlich erzeugte haptische Rückmeldungen verwendet werden. Damit eine Touchscreen-Oberfläche mit Hilfe von Aktoren angeregt werden kann, müssen diese sowohl dem Eigengewicht des Touchscreens als auch den aufgebrachten Fingerkräften eines Nutzers entgegenwirken. Für letztere wurden typische Werte auf einer stationären Touchscreen-Oberfläche empirisch bestimmt. Die Messung der Fingerkräfte beim mehrmaligen Drücken einer virtuellen Taste lieferte unter 48 Versuchsteilnehmern eine durchschnittliche Finger-kraft von 5,02 N ± 2,56 N und eine maximale Fingerkraft von 12,73 N. Darüber hinaus konnten keine signifikanten Unterschiede der typischen Fingerkräfte in Bezug auf das Alter und das Geschlecht ermittelt werden.
Lehmann, Katja ; Söllner, Matthias ; Leimeister, Jan Marco:Design and Evaluation of an IT-based Peer Assessment to Increase Learner Performance in Large-Scale Lectures.. In: International Conference on Information Systems (ICIS). Dublin, Ireland, 2016
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Lehmann, Katja ; Söllner, Matthias ; Leimeister, Jan Marco:Increasing Learner Interaction in Large-Scale Lectures by Using a Mobile-Learning Application.. In: Parsons, D. (ed.): Mobile and Blended Learning Innovations for Improved Learning Outcomes. Hershey, PA : IGI Global, 2016
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Leicht, Niklas ; Knop, Nicolas ; Blohm, Ivo ; Müller-Bloch, Christoph ; Leimeister, Jan Marco:When is Crowdsourcing Advantageous? The Case of Crowdsourced Software Testing.. In: European Conference on Information Systems (ECIS 2016). Istanbul, Turkey, 2016
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Lehmann, Katja ; Söllner, Matthias ; Blohm, Ivo ; Leimeister, Jan Marco:How Many Peer Assessors are Required for Assessment on Another Peer’s Work?. In: Academy of Management Annual Meeting (AOM) - PDW ‘Management Education and Learning Writers Workshop’. Anaheim, CA, United States, 2016
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Leicht, Niklas ; Rhyn, Marcel ; Hansbauer, Georg:Can Laymen Outperform Experts? The Effects of User Expertise and Task Design in Crowdsourced Software Testing.. In: European Conference on Information Systems (ECIS 2016). Istanbul, Turkey, 2016
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Söllner, Matthias ; Hoffmann, Axel ; Leimeister, Jan Marco: Why Different Trust Relationships Matter for Information Systems Users. In: European Journal of Information Systems (EJIS) vol. 25 (2016), Nr. 3, pp. 274–287
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Technology acceptance research has shown that trust is an important factor fostering use of information systems (IS). As a result, numerous IS researchers have studied factors that build trust in IS. However, IS research on trust has mainly focused on the trust relationship between the user and the IS itself, largely neglecting that other targets of trust might also drive IS use from a user’s point of view. Accordingly, we investigate the importance of different targets of trust in IS use. Therefore, we use the concept of a network of trust and identify four different targets of trust that are prevalent from a user’s point of view. Afterwards, we develop our research model and evaluate it using a free simulation experiment. The results show that multiple targets of trust are important in the context of IS use. In particular, we highlight the importance of a second target – trust in the provider – which is equally important as trust in the IS itself. Consequently, IS providers should focus not only on fostering users’ trust in their IS but also on positioning themselves as trustworthy providers. In addition, we show that a third target – trust in the Internet – has significant indirect effects on multiple constructs that impact IS use.
Leimeister, Jan Marco ; Durward, David ; Zogaj, Shkodran:Crowd Worker in Deutschland - Eine empirische Studie zum Arbeitsumfeld auf externen Crowdsourcing-Plattformen.. In: Study der Hans-Böckler-Stiftung, Band 323, 2016, p. 86
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Leimeister, Jan Marco ; Zogaj, Shkodran ; Durward, David:New Forms of Employment and IT: Crowdsourcing.. In: Blanpain, R. ; Hendrickx, F. ; Waas, B. (eds.): Bulletin of Comparative Labour Relations Series. vol. New Forms of Employment in Europe : Kluwer Law International BV, The Netherlands, 2016, pp. 23–41
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Mueller, Juergen ; Stumme, Gerd:Gender Inference using Statistical Name Characteristics in Twitter.. In: 5th ASE International Conference on Social Informatics (SocInfo 2016), Union, NJ, USA, August 15-17, 2016. Proceedings. New York, NY, USA : ACM, 2016 — ISBN 978-1-4503-4129-5, pp. 47:1–47:8
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Much attention has been given to the task of gender inference of Twitter users. Although names are strong gender indicators, the names of Twitter users are rarely used as a feature; probably due to the high number of ill-formed names, which cannot be found in any name dictionary. Instead of relying solely on a name database, we propose a novel name classifier. Our approach extracts characteristics from the user names and uses those in order to assign the names to a gender. This enables us to classify international first names as well as ill-formed names.
Pittroff, Fabian:"To answer this question, we must first start with a definition of ’I’ ...".. In: Berger, P. A. ; Brumme, R. ; Cap, C. (eds.): Überwachung und Privatheit in der Ära nach Snowden. Ein Dialog. Rostock : Universität Rostock, 2016
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Li, Mahei Manhai ; Peters, Christoph:Mastering Shakedown Through The User: The Need for User-Generated Services In Techno Change.. In: European Conference on Information Systems (ECIS). Istanbul, Turkey, 2016
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Richter, Philipp: Instrumente zwischen rechtlicher Steuerung und technischer Entwicklung. In: Datenschutz und Datensicherhiet (2016), p. 89
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Richter, Philipp:Rechtsfragen autonomer Pflegeroboter, Gutachten im Auftrag des Deutschen Bundestags (Büro für Technikfolgenabschätzung), 2016
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Lamla, Jörn:Die Politik der Moderne(n).. In: Laux, H. (ed.): Bruno Latours Existenzweisen. Einführung und Diskussion. Bielefeld : Transcript, 2016, pp. 79–94
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Radziwill, M. ; Kniewel, R. ; Schmidt, L.:Evaluation mobiler Design Patterns zur Datums- und Uhrzeiteingabe in Bezug auf jüngere und ältere Nutzer.. In: Gesellschaft für Arbeitswissenschaft e. V. (ed.): Arbeit in komplexen Systemen - Digital, vernetzt, human?! 62. Kongress der Gesellschaft für Arbeitswissenschaft (Aachen 2016). Dortmund : GfA-Press, 2016, pp. 1–6 (B.5.4)
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Um die Gebrauchstauglichkeit aktuell verfügbarer Design Patterns zur Datums- und Uhrzeiteingabe auf mobilen Endgeräten in Bezug auf Nutzer unterschiedlicher Alterskohorten zu evaluieren, wurde die Effektivität und Effizienz etablierter Design Patterns sowie die subjektive Pattern-Präferenz im Rahmen einer Laborstudie mit zwei unabhängigen Stichproben untersucht. Die Ergebnisse der Studie zeigen, dass alle untersuchten Patterns sowohl von jüngeren als auch von älteren Nutzern effektiv genutzt werden konnten, dass bezogen auf die Effizienz jedoch auch signifikante Unterschiede zwischen den Versuchsgruppen auftraten. Die subjektive Bewertung zeigt zudem, dass bestimmte Patterns bevorzugt und als einfacher zu nutzen empfunden werden.
Radziwill, M. ; Kniewel, R. ; Schmidt, L.:Gebrauchstauglichkeit von Icons mobiler Fahrgastinformationssysteme in Bezug auf jüngere und ältere Nutzer.. In: Wienrich, C. ; Zander, T. O. ; Gramann, K. (eds.): Trends in Neuroergonomics: 11. Berliner Werkstatt Mensch-Maschine-Systeme (Berlin 2015). Berlin : Universitätsverlag der TU Berlin, 2016, pp. 82–86
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Zur Entwicklung gebrauchstauglicher Smartphone-Applikationen kann neben software-ergonomischen Standards und Richtlinien u. a. auch auf Styleguides und Patterns zurückgegriffen werden. Für Icons, welche gerade auf kleinen Displays eine zentrale Rolle bei der Dialoggestaltung spielen, existieren dagegen keine einheitlichen Standards und anwendungsspezifische Empfehlungen. So weisen heutige Applikationen für gleiche Funktionen verschiedene Gestaltungslösungen auf. Icons können vor allem in Bezug auf unerfahrene, ältere Nutzer zu Nutzungsbarrieren führen, da diese oftmals nicht in der Lage sind, den Bedeutungsinhalt richtig zu interpretieren. Um Erkenntnisse zur altersunabhängigen Gestaltung von Icons im Bereich mobiler Fahrgastinformationssysteme zu generieren, wurden fünf Icon-Sets mit zwei unabhängigen Stichproben (Ma=57,8 Jahre und Mj=26,8 Jahre) evaluiert. Dabei konnte gezeigt werden, dass für Icons in heutigen Applikationen signifikante Unterschiede in Bezug auf die Erkennungsleistung zwischen älteren und jüngeren Nutzern bestehen. Außerdem konnte gezeigt werden, dass durch den Einbezug von Nutzern in den Icon-Gestaltungsprozess die Erkennungsleistung verbessert, und somit eine effektivere Nutzung ermöglicht werden kann.
Radziwill, M. ; Kniewel, R. ; Schmidt, L.:Gebrauchstauglichkeit und kontextabhängige Akzeptanz sprachbasierter Smartphone-Steuerung in Bezug auf jüngere und ältere Nutzer.. In: Automatisierungstechnik, V.-G. M.- und (ed.): Useware 2016: Mensch-Technik-Interaktion im Industrie 4.0 Zeitalter (Dresden 2016), VDI-Berichte. Düsseldorf : VDI-Verlag, 2016, pp. 81–92 *** Best Paper Award ***
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Um die Gebrauchstauglichkeit und kontextabhängige Akzeptanz sprachbasierter Smart-phone-Steuerung mittels „Google-Now“ in Bezug auf Nutzer unterschiedlicher Alters-kohorten zu evaluieren, wurden im Rahmen einer Laborstudie mit zwei unabhängigen Stichproben die Effektivität und die Effizienz sprachbasierter Smartphone-Interaktion mit dem heute üblichen Interaktionsmuster der virtuellen Touchscreen-Tastatur verglichen. Außerdem wurden die empfundene Einfachheit der Nutzung und die wahrgenommene Nützlichkeit als Komponenten der Nutzerakzeptanz sowie die kontextabhängige Nutzungsbereitschaft der beiden Eingabemodalitäten evaluiert. Die Ergebnisse der Studie zeigen zwar, dass beide Eingabemodalitäten sowohl von jüngeren als auch von älteren Nutzern zur Erledigung von navigationsbezogenen Aufgaben genutzt werden können, dass im Hinblick auf die Effektivität (Häufigkeit Fehleingaben) und Effizienz (Bearbeitungsdauer) der Aufgabenerfüllung jedoch auch signifikante Unterschiede sowohl zwischen den Eingabemodalitäten, als auch zwischen den beiden Alterskohorten auftreten. So konnte u. a. gezeigt werden, dass mittels Spracheingabe in beiden Versuchsgruppen weniger Fehleingaben getätigt wurden und die Sprache eine schnellere Aufgabenbearbeitung ermöglichte als die tastaturbasierte Eingabe. Der Vergleich zwischen den beiden Alterskohorten zeigte, dass jüngere Nutzer mittels tastaturbasierter Eingabe signifikant weniger Fehleingaben tätigten als Ältere und zudem alle gestellten Aufgaben des Versuchsszenarios signifikant schneller bearbeiteten. Mittels Spracheingabe konnte teilweise der gleiche Effekt festgestellt werden, allerdings nur für zwei von fünf Aufgaben. Die subjektive Bewertung der Probanden machte zudem deutlich, dass die Spracheingabe altersunabhängig sowohl nützlicher als auch einfacher zu nutzen empfunden wird als die Tastatureingabe. Allerdings zeigte sich auch, dass die Nutzungsbereitschaft stark vom Nutzungsumfeld bzw. vom Bekanntheitsgrad mitanwesender Personen abhängig ist, wobei ältere Personen der Nutzung von Spracheingaben in der Öffentlichkeit kritischer gegenüberstehen als Jüngere.
Prinz, Andreas ; Leimeister, Jan Marco:Elektronische Datenerfassung im Gesundheitswesen–Das Beispiel eines NFC-basierten Systems zur Patientenselbstbewertung.. In: Knoll, M. ; Meinhardt, S. (eds.): Mobile Computing Grundlagen – Prozesse und Plattformen – Branchen und Anwendungsszenarien : Springer Viewer, 2016, pp. 127–142
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Richter, Philipp:Statistische Datenverarbeitung.. In: Roßnagel, A. (ed.): Europäische Datenschutz-Grundverordnung, Vorrang des Unionsrechts – Anwendbarkeit des nationalen Rechts. Baden-Baden : Nomos, 2016, pp. 244–254
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Richter, Philipp: Big Data, Statistik und die Datenschutz-Grundverordnung. In: Datenschutz und Datensicherheit (2016), pp. 581–586
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Richter, Philipp ; Weinhold, Robert ; Krüger, Marco ; Geske, Katrin: Von Kameras und Verdrängung - Rechtliche Anknüpfungspunkte für ein Recht auf Stadt unter besonderer Diskussion der Videoüberwachung öffentlicher Räume. In: Kritische Justiz vol. 49 (2016), Nr. 1, p. 31
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Roßnagel, A. (ed.):Arbeitshilfe zur Datenschutz-Grundverordnung – Synopse der deutschen Übersetzung der DSGVO in der Entwurfsfassung vom 28. Januar 2016 zur verkündeten Fassung, ITeG Technical Report 4 des Wissenschaftlichen Zentrums für Informationstechnik-Gestaltung. Kassel : kassel university press, 2016
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Roßnagel, A.:Stand des Europäischen Ressourcenschutzrechts.. In: Marauhn, T. ; Reimer, F. (eds.): Ressourceneffizienz – Leitbild für den Umweltschutz : Nomos, 2016, pp. 61–90
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Roßnagel, A.:Einleitung: Das künftige Datenschutzrecht nach Geltung der Datenschutz-Grundverordnung.. In: Roßnagel, A. (ed.): Europäische Datenschutz-Grundverordnung – Vorrang des Unionsrechts – Anwendbarkeit des nationalen Rechts : Nomos, 2016, pp. 49–66
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Ochs, Carsten:Local Digital Practices, Worldwide.. In: Friese, H. ; Rebane, G. ; Nolden, M. ; Schreiter, M. (eds.): Handbuch Soziale Praktiken und digitale Alltagswelten. München : Springer, 2016
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Kunz, Michael Marcin ; Ruth, Lukas ; Bretschneider, Ulrich:Crowdfund your City: Empirische Studie zum Einsatz des Crowdfundings als Finanzierungsinstrument für Städte, Länder und Kommunen.. In: 78. Jahrestagung des VHB. München, 2016
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Ochs, Carsten ; Richter, Philipp ; Uhlmann, Markus: Technikgestaltung demokratisieren – Partizipatives Privacy by Design. In: Zeitschrift für Datenschutz vol. 6 (2016), Nr. 21
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Ochs, Carsten ; Lamla, Jörn ; Pittroff, Fabian ; Büttner, Barbara: Governing the Internet in the Privacy Arena. In: Internet Policy Review. Journal on Internet Regulation (Special Issue ‚ Doing internet governance: practices, controversies, infrastructures, and institutions) vol. 5 (2016), Nr. 4
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Schmidt, L.: Benutzerfreundliche Informationstechnik für die Freizeitmobilität. In: Elektromobilität in Nordhessen - Vom Pilotprojekt zum Alltagseinsatz : FREE-Abschlusskonferenz, Vortrag, Elektromobilität in Nordhessen - Vom Pilotprojekt zum Alltagseinsatz : FREE-Abschlusskonferenz, Vortrag.. Kassel (2016)
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Laser, Stefan:A Phone Worth Keeping for the Next 6 Billion? Exploring the Creation of a Modular Smartphone Made by Google.. In: Lewe, C. ; Orthold, T. ; Oxen, N. (eds.): Müll. Interdisziplinäre Perspektiven auf das Übrig-Gebliebene. Bielefeld : transcript, 2016
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Laser, Stefan: Why Is It so Hard to Engage with Practices of the Informal Sector? Experimental Insights from the Indian E-Waste-Collective. In: Cultural Studies Review vol. 22 (2016), Nr. 1
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Lücking, Phillip ; Rohlfing, Katharina J. ; Wrede, Britta ; Schilling, Malte:Preschoolers’ engagement in social interaction with an autonomous robotic system.. In: 2016 Joint IEEE International Conference on Development and Learning and Epigenetic Robotics (ICDL-EpiRob) : IEEE, 2016, pp. 210–216
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In this paper, we present an empirical study with children at the age of 4 and 5 years to reveal whether they engage with a robot in an interaction. For our analysis, we developed a score assessing the interaction level. It consists of emotional involvement, engagement and independence of the child in the interaction. For the interaction, an autonomous system was equipped with a designed dialogic structure. It consisted of a repertoire of (pre-recorded) interaction protocols that a robot can apply in an interaction. The results from the evaluation suggest that the implementation was successful as most of the studied children engaged in the interaction with the robot. The results also reveal some gender differences. The long-term aim of the study is to develop an autonomous system that can be applied in an interaction with young children.
Schmidt, L.: Digitalisierung des Alltags. In: Fachtagung Tablet - Sensor - Assistent : Autonomie im Alltag mit hilfreicher Technik, eingeladener Vortrag, Fachtagung Tablet - Sensor - Assistent : Autonomie im Alltag mit hilfreicher Technik, eingeladener Vortrag.. Wiesbaden (2016)
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Schmidt, L.: Der fürsorgende Roboter? Assistenz für alternde Menschen?. In: Futurale Filmfestival Arbeiten 4.0, Panel Diskussion, Futurale Filmfestival Arbeiten 4.0, Panel Diskussion.. Kassel (2016)
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Kunz, Michael Marcin ; Englisch, Oliver ; Beck, Jan ; Bretschneider, Ulrich:Sometimes You Win, Sometimes You Learn – Success Factors in Reward-Based Crowdfunding.. In: Multikonferenz Wirtschaftsinformatik (MKWI). Ilmenau, 2016
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Roßnagel, Alexander ; Geminn, Christian ; Jandt, Silke ; Richter, Philipp:Datenschutzrecht 2016 – ‚Smart‘ genug für die Zukunft? Ubiquitous Computing und Big Data als Herausforderungen des Datenschutzrechts. Kassel : ITeG – Interdisciplinary Research on Information System Design, 2016
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Roßnagel, Alexander:Das Recht der Vertrauensdienste. Die eIDAS-Verordnung in der deutschen Rechtsordnung, Reihe der elektronische Rechtsverkehr. vol. 37 : Nomos, 2016
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Schmidt, Andreas ; Atzmueller, Martin ; Hollender, Martin:Data Preparation for Big Data Analytics: Methods & Experiences.. In: Enterprise Big Data Engineering, Analytics, and Management. Hershey, PA, USA : IGI Global, 2016
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Roßnagel, Alexander ; Geminn, Christian L. ; Jandt, Silke ; Richter, Philipp:Weiterentwicklung des Datenschutzes im Spannungsfeld neuer Technologien. Wiesbaden : Hessisches Ministerium des Inneren und für Sport, 2016
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Kunz, Michael Marcin ; Bretschneider, Ulrich ; Leimeister, Jan Marco:Woohoo TinkerBots! The Marketing Effect of Crowdfunding.. In: International Conference on Information Systems (ICIS). Dublin, Ireland, 2016
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Maier, Natalie: Freie Arbeitszeiteinteilung von Wissensarbeitern – Selbstbestimmung oder Ausbeutung?. In: Der Betrieb (2016), Nr. 46, pp. 2723–2728
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Roßnagel, Alexander ; Johannes, Paul C.:Der Rechtsrahmen für einen Selbstschutz der Grundrechte in der Digitalen Welt. Kassel : kassel university press, 2016
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Kunz, Michael ; Ebel, Philipp ; Leimeister, Jan Marco:Open Service Innovation Online- Community für Cloud-Service-Ökosysteme.. In: Krcmar, H. ; Leimeister, J. M. ; Roßnagel, A. ; Sunyaev, A. (eds.): Cloud-Services aus der Geschäftsperspektive. Wiesbaden : Springer Gabler, 2016, pp. 187–206
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Kroschwald, Steffen:Informationelle Selbstbestimmung in der Cloud, DuD-Fachbeiträge : Springer Vieweg, 2016
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Nebel, Maxi ; Roßnagel, Alexander: Die neue Datenschutz-Grundverordnung, Ist das Datenschutzrecht nun für heutige Herausforderungen gerüstet?. In: des Forum Privatheit, P. P. (ed.) (2016)
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Schöbel, Sofia ; Lehmann, Katja ; Oeste-Reiß, Sarah ; Söllner, Matthias:StaySmart – Individuelles und kompetenzorientiertes E-Learning im Zeitalter des demografischen Wandels.. In: e-Learning Fachtagung Informatik (DeLFI). Potsdam, Germany, 2016
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Marschall, Kevin: Erweiterte Informationspflichten in der DSGVO: Änderungen für die Unternehmen. In: Datenschutz-Berater (2016), pp. 230–232
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Matzner, Tobias ; Masir, Philip ; Ochs, Carsten ; von Pape, Thilo:Do-It-Yourself Data Protection - Empowerment or Burden?. In: Gutwirth, S. ; Leenes, R. ; De Hert, P. (eds.): Data Protection on the Move. Current Developments in ICT and Privacy/Data Protection : Springer, 2016, pp. 277–305
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Lasry, George ; Kopal, Nils ; Wacker, Arno: Cryptanalysis of the Columnar Transposition Cipher with Long Keys. In: Cryptologia (2016), pp. 1–25
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The classical columnar transposition cipher was the most popular type of transposition cipher. It was in use mainly during the second half of the nineteenth century and the first half of the twentieth century. It also served as a building block for more complex ciphers, such as the ADFGVX cipher and the double transposition cipher. Pen-and-paper as well as computerized methods for the cryptanalysis of the columnar transposition cipher have been published, but those apply mainly to the easier cases of short keys and complete transposition rectangles. In this article, a novel approach for the cryptanalysis of the columnar transposition cipher (when used with long keys) is presented. It is based on a two-phase hill climbing algorithm, a two-dimensional fitness score, and special transformations on key segments. This ciphertext-only method allows for the recovery of transposition keys with up to 1,000 elements, and up to 120 elements for worst case transposition rectangles.
Schmidt, L.: Qualifizierung zur AAL-Beratung: Berufstätige aus dem sozialen und technischen Bereich im TAAndem. In: Fachtagung Tablet - Sensor - Assistent : Autonomie im Alltag mit hilfreicher Technik, eingeladener Vortrag, Fachtagung Tablet - Sensor - Assistent : Autonomie im Alltag mit hilfreicher Technik, eingeladener Vortrag.. Wiesbaden (2016)
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Kroll, Dennis ; Kusber, Rico ; David, Klaus:Implicit Positioning Using Compass Sensor Data.. In: Proceedings of the 2016 ACM International Joint Conference on Pervasive and Ubiquitous Computing: Adjunct, UbiComp ’16. Heidelberg, Germany : ACM, 2016 — ISBN 978-1-4503-4462-3, pp. 732–741
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In this paper, we present Implicit Positioning -- an approach to recognize the indoor area where a person is, such as a specific corridor or corner. Implicit Positioning adapts to its user by automatically finding, learning, and recognizing patterns in data from a smartphone's compass sensor. These patterns model characteristics of the areas the person walked through, such as the direction the person headed, and can be understood as Implicit Positions. Implicit Positioning neither relies on user feedback nor on additional infrastructure, digital maps or war-driving. All the person needs to do is carry a smartphone. To evaluate our approach, we collected data from smartphones carried by a test person in different positions. The test person covered a distance of 17.4 km in two different buildings. When taking a path for the second time, patterns were already being correctly recognized with an accuracy of up to 87.8%.
Schöbel, Sofia ; Lehmann, Katja ; Oeste-Reiß, Sarah ; Söllner, Matthias ; Glavas, Marija ; Hilbert, Lars ; Kamsties, Sabrinas ; für Informationstechnik-Gestaltung (ITeG) an der Universität Kassel, W. Z. (ed.):Kompetenzen und Qualifikationen von Energieberatern - Eine qualitative Analyse des Energieberatungsmarktes, 2016
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Roßnagel, A.: Die neue Vorratsdatenspeicherung. Der nächste Schritt im Ringen um Sicherheit und Grundrechtsschutz. In: Neue juristische Wochenschrift vol. 69. (2016), pp. 533–539
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Lamla, Jörn: Repression, Konstitution und Transformation: Das Politische als Neuversammlung gesellschaftlicher Macht. In: Soziologische Revue vol. 39 (2016), Nr. 1, pp. 41–59
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Roßnagel, A.: Wie zukunftsfähig ist die Datenschutz-Grundverordnung? Welche Antworten bietet sie für die neuen Herausforderungen des Datenschutzrechts?. In: Datenschutz und Datensicherheit vol. 40 (2016), pp. 561–565
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Kunz, Michael ; Ebel, Philipp ; Leimeister, Jan Marco:Anforderungserhebung für eine Online- Community für Open Service Innovation im Cloud-Computing-Umfeld.. In: Krcmar, H. ; Leimeister, J. M. ; Roßnagel, A. ; Sunyaev, A. (eds.): Cloud-Services aus der Geschäftsperspektive. Wiesbaden : Springer Gabler, 2016, pp. 73–86
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Roßnagel, A.:Das neue Datenschutzrecht – Fort- oder Rückschritt?. In: Roßnagel, A. (ed.): Europäische Datenschutz-Grundverordnung – Vorrang des Unionsrechts – Anwendbarkeit des nationalen Rechts : Nomos, 2016, pp. 327 – 330
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Schöbel, Sofia ; Söllner, Matthias:How to Gamify Information Systems - Adapting Gamification to Individual User Preferences.. In: European Conference on Information Systems (ECIS). Istanbul, Turkey, 2016
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Opfer, Stephan ; Niemczyk, Stefan ; Geihs, Kurt:Multi-Agent Plan Verification with Answer Set Programming.. In: Proceedings ot the Third Workshop on Model-Driven Robot Software Engineering (MORSE16). Leipzig, Germany : ACM, 2016
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Reasoning about multi-agent plans allows to detect modelling failures and to improve the efficiency of the modelling process. Therefore, we evaluate the applicability of an answer set programming based reasoning support for the multi-agent modelling language ALICA. For a proper judgement several reasoning tasks of different complexity are investigated. The overall architecture is highlighted and encountered problems are discussed. Finally it is concluded that answer set programming is a promising approach for reasoning about multi-agent plans.
Kropf, Jonathan: Konsekrationsinstanzen im digitalen Wandel. Beiträge zur Erweiterung des feldanalytischen Forschungsprogramms am Beispiel populärer Musik. In: Berliner Journal für Soziologie vol. 25 (2016), Nr. 4, pp. 429–458
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Roßnagel, A. ; Jandt, S. ; Marschall, K.:Juristische Aspekte bei der Datenanalyse für die Industrie 4.0 – Beispiel eines Smart Data-Austauschs in der Prozessindustrie.. In: Vogel-Heuser, B. ; Bauernhansl, T. ; Hompel, M. (eds.): Handbuch Industrie 4.0. vol. 2 : Springer, 2016, pp. 491–522
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Roßnagel, A. ; M., Nebel.:Die neue Datenschutzgrundverordnung - Ist das Datenschutzrecht nun für heutige Herausforderungen gerüstet?. https://www.forum-privatheit.de/forum-privatheit-de/texte/veroeffentlichungen-des-forums/positionspapiere-policy-paper/PolicyPaper-5-Die-neue-DSGVO_1.-Auflage_Mai_2016.pdf : Policy Paper des Forums Privatheit und selbstbestimmtes Leben in der Digitalen Welt, 2016
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Skistims, Hendrik:Smart Homes. Baden-Baden : Nomos, 2016
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Roßnagel, Alexander ; Richter, Philipp:Big Data and Informational Self-Determination. Regulative approaches in Germany: The Case of Police and Intelligence Agencies.. In: Sloot, van der ; Broeders ; Schrijvers (eds.): Exploring the Boundaries of Big Data. Den Haag/Amsterdam, 2016, p. 261
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Oeste-Reiß, Sarah ; Söllner, Matthias ; Leimeister, Jan Marco:Development of a Peer-Creation-Process to Leverage the Power of Collaborative Knowledge Transfer.. In: Hawaiin International Conference on System Sciences (HICSS). Kauai, Hawaii, USA, 2016
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Miedzianowski, Nadine: Prüfpflichten von Hostprovidern als mittelbare Störer bei Bewertungen Dritter auf ihrem Internetportal. In: Roßnagel, A. (ed.) Verbraucher und Recht vol. 9 (2016), pp. 354–359
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Roßnagel, Alexander ; Nebel, Maxi ; Geminn, Christian L.:Entgeltliche Auskunftsansprüche zu Score-Werten und ihr Mehrwert für den Verbraucher. Düsseldorf : Verbraucherzentrale Nordrhein-Westfalen e.V., 2016
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Lamla, Jörn ; Laser, Stefan: Nachhaltiger Konsum im transnationalen Wertschöpfungskollektiv. Versammlungsdynamiken in der Politischen Ökonomie des Elektroschrotts. In: Berliner Journal für Soziologie vol. 26 (2016), Nr. 2, pp. 249–271
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Lasry, George ; Rubin, Moshe ; Kopal, Nils ; Wacker, Arno: Cryptanalysis of Chaocipher and Solution of Exhibit 6. In: Cryptologia (2016), pp. 1–28
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Chaocipher is a manual encryption method designed by John F. Byrne in 1918. Until he passed away in 1960, Byrne fervently believed that his cipher system was unbreakable, regardless of the amount of material available to a cryptanalyst. For several decades, he tried (unsuccessfully), to propose the Chaocipher to government agencies. In 1953, he exposed his Chaocipher in his autobiography, Silent Years, providing several examples of texts encrypted with Chaocipher as challenges, but without divulging the inner workings of the cipher. Those were made public only in 2010, when Byrne’s family donated the entire corpus of Chaocipher papers to the National Cryptologic Museum (NCM) in Fort Meade. A known-plaintext method for recovering the key settings, given sufficient matching plaintext and ciphertext, was published in 2010. However, to date, no method for the cryptanalysis of a single ciphertext-only Chaocipher message has been proposed, nor for the cryptanalysis of short messages “in-depth,” i.e., multiple messages generated with the same initial key settings. In this article, the authors present a new hillclimbing algorithm for a ciphertext-only cryptanalysis of Chaocipher in-depth messages. This algorithm is based on a “divide-and-conquer” approach and the use of the Index of Coincidence. It takes advantage of a major weakness in the design of the cipher. This previously unknown weakness may have been the reason why William F. Friedman, the inventor of the Index of Coincidence, rejected Byrne’s offer for the use of Chaocipher by the U.S. government. Additionally, the authors present a known-plaintext attack for short in-depth messages, as well as the solution for Lou Kruh’s and Cipher Deavours’s alternate Exhibit 5, also known as “Exhibit 6.” Finally, the authors reevaluate the security of the Chaocipher in view of those findings, with the conclusion that in its classic form, as designed by Byrne, the Chaocipher was a relatively weak cipher, despite Byrne’s rather strong assertions to the contrary.
Schmidt, L. ; Stieler, K.: Auswirkungen von Industrie 4.0 auf die Mensch-Maschine-Interaktion. In: Zukunftsforum Digitalisierung : Wissenschaft trifft Wirtschaft, Vortrag, Zukunftsforum Digitalisierung : Wissenschaft trifft Wirtschaft, Vortrag.. Kassel (2016)
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Nebel, Maxi: Strafbarkeit eines missbräuchlichen Angriffs auf öffentliche WLAN-Netze. In: ZD-Aktuell (2016), Nr. 05323
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Mrass, Volkmar ; Peters, Christoph ; Leimeister, Jan Marco:New Work Organization through Crowdworking Platforms - A Case Study.. In: Zukunftsprojekt Arbeitswelt 4.0. Stuttgart, Germany, 2016
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Schmidt, L. ; Hennemann, S.: Reiseassistenzsystem für dynamische Umgebungen auf Basis von Augmented Reality. In: Workshop Adaptive, lernende Systeme - Für eine verständliche Interaktion zwischen Mensch und komplexer Technik : Mensch und Computer, Vortrag, Workshop Adaptive, lernende Systeme - Für eine verständliche Interaktion zwischen Mensch und komplexer Technik : Mensch und Computer, Vortrag.. Aachen (2016)
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Schmidt, L.: Gestaltung der haptischen Rückmeldung bei berührungsempfindlichen Oberflächen. In: Arbeit in komplexen Systemen - Digital, vernetzt, human?! : 62. Kongress der Gesellschaft für Arbeitswissenschaft, eingeladener Vortrag (Kongresseröffnungs-Keynote), Arbeit in komplexen Systemen - Digital, vernetzt, human?! : 62. Kongress der Gesellschaft für Arbeitswissenschaft, eingeladener Vortrag (Kongresseröffnungs-Keynote).. Aachen (2016)
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Lasry, George ; Niebel, Ingo ; Kopal, Nils ; Wacker, Arno: Deciphering ADFGVX Messages from World War I Eastern Front. In: Cryptologia (2016), pp. 1–36
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In the last months of World War I (WW I), the German Army and diplomatic services used the ADFGVX hand-cipher system to encrypt radio messages between Germany and its outposts and stations in the Balkans, the Black Sea, and in the Middle East. Hundreds of cryptograms were intercepted from July to December 1918 by British and U.S. military intelligence, who were able to recover most of the keys and decipher most of the cryptograms using manual cryptanalysis methods. Fortunately, the original cryptograms have been preserved by James Rives Childs, the U.S. officer assigned to G.2 A.6, the SIGINT section of American Expeditionary Forces (AEF) in Paris, and they appear in his book, General Solution of the ADFGVX Cipher System, published by Aegean Press Park in 2000. In this article, the authors present the results of an effort toward the complete cryptanalysis of the messages, and an analysis of their contents. The authors present a new computerized method for the ciphertext-only cryptanalysis of ADFGVX messages which they developed for that purpose. They also provide details on how all the keys were recovered and almost all the messages decrypted, despite the low quality of significant parts of the intercepted material. The analysis of the messages in their historical context provides a unique insight into key events, such as the withdrawal of the German troops from Romania, and the impact of the Kiel Mutiny on communications. Both events had major political and military consequences for Germany in the Eastern Front. Cryptanalysis allowed the Entente Powers to closely monitor those events as well as others developments, also highlighting inherent weaknesses in German cryptographic and cryptanalytic capabilities. The authors plan to publish online all the decrypted messages.
Nebel, Maxi ; Hansen, Marit ; Ghiglieri, Marco ; Simo Fhom, Hervais ; Pörschke, Julia Victoria ; and Zoche, P. ; Ammicht Quinn, R. ; Lamla, J. ; Heesen, J. ; Hess, T. ; Matt, C. ; Roßnagel, A. ; Trepte, S. ; et al. (eds.):Smart-TV und Privatheit. Karlsruhe : Forum Privatheit und selbstbestimmtes Leben in der Digitalen Welt,, 2016
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Leimeister, Jan Marco ; Zogaj, Shkodran ; Durward, David ; Blohm, Ivo:Systematisierung und Analyse von Crowdsourcing-Anbietern und Crowd-Work-Projekten.. In: Study der Hans-Böckler-Stiftung, Band 324, 2016, p. 106
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Ochs, Carsten:Die Kontrolle ist tot – lang lebe die Kontrolle! Plädoyer für ein nach-bürgerliches Privatheitsverständnis.. In: Berger, P. A. ; Brumme, R. ; Cap, C. H. (eds.): Überwachung und Privatheit in der Ära nach Snowden. Ein Dialog. Rostock : Universität Rostock, 2016, pp. 77–102
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Barlag, Charlotte ; Blazy, Stephan ; Geminn, Christian ; Hofmann, Johanna ; Hohmann, Carolin ; Hoidn, Dominik ; Jandt, Silke ; Johannes, Paul C. ; et al. ; Roßnagel, A. (ed.):Arbeitshilfe zur Datenschutz-Grundverordnung – Synopse der deutschen Übersetzung der DSGVO in der Entwurfsfassung vom 28. Januar 2016 zur verkündeten Fassung. Kassel : ITeG Technical Reports, 2016
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Atzmueller, M. ; Oussena, S. ; Roth-Berghofer, T. (eds.):Enterprise Big Data Engineering, Analytics and Management. Hershey, PA, USA : IGI Global, 2016
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Hofmann, Johanna M.: Urteilsbesprechung von BGH, Urt. v. 19.03.2015, Az. I ZR 157/13 – Schufa-Hinweis. In: Verbaucher und Recht (2016), pp. 67–69
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Hofmann, Johanna: Zertifizierungen nach der DS-GVO. In: ZD-Aktuell (2016), Nr. 05324
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Friedewald, Michale ; Obersteller, Hannah ; Nebel, Maxi ; Bieker, Felix ; Rost, Martin:White Paper Datenschutz-Folgenabschätzung.. In: Zoche, P. ; Ammicht Quinn, R. ; Friedewald, M. ; Hansen, M. ; Heesen, J. ; Hess, T. ; Lamla, J. ; Matt, C. ; et al. (eds.): Forum Privatheit und selbstbestimmtes Leben in der Digitalen Welt. Karlsruhe, 2016
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Fuijwara, Shizuo ; Geminn, Christian: Reform des japanischen Datenschutzrechts im öffentlichen Bereich – Überblick über die Entwicklung des Rechts- und Gesetzessystems für den Datenschutz. In: Zeitschrift für Datenschutz (2016), pp. 522–528
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Johannes, Paul C.: Erster Referentenentwurf des BMI für ein Ausführungsgesetz zur DS-GVO nach heftiger Kritik zurückgenommen. In: ZD-Aktuell (2016), Nr. 05322
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Johannes, Paul C.: Pokémon, Augmented Reality und die Verschleierung von Positionsdaten. In: ZD-Aktuell (2016), Nr. 05321
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Blohm, Ivo ; Riedl, Christoph ; Füller, Johann ; Leimeister, Jan Marco: Rate or Trade? Identifying Winning Ideas in Open Idea Sourcing. In: Information Systems Research vol. 27 (2016), Nr. 1, pp. 27–48
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Ay, Güler ; Zogaj, Shkodran ; Bretschneider, Ulrich:Erfolgreiche Crowd Governance – Projektspezifische Steuerungs- und Kontrollmechanismen auf wettbewerbsbasierten Crowdsourcing-Plattformen.. In: Working Paper Series, Nr. 15. Kassel, Germany, 2016
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Atzmueller, Martin ; Thiele, Lisa ; Stumme, Gerd ; Kauffeld, Simone:Analyzing Group Interaction and Dynamics on Socio-Behavioral Networks of Face-to-Face Proximity.. In: Proc. ACM Conference on Pervasive and Ubiquitous Computing Adjunct Publication, UbiComp ’16 Adjunct. New York, NY, USA : ACM Press, 2016
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Gebauer, Lysann ; Kunz, Michael ; Hoberg, P. ; Kroschwald, S. ; Reidt, A. ; Schneider, S. ; Wicker, M. ; Wollersheim, J.:Ausgangslage und Definitorisches.. In: Krcmar, H. ; Leimeister, J. M. ; Roßnagel, A. ; Sunyaev, A. (eds.): Cloud-Services aus der Geschäftsperspektive. Wiesbaden : Springer Gabler, 2016, pp. 17–30
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Atzmueller, Martin ; Schmidt, Andreas ; Kloepper, Benjamin ; Arnu, David:HypGraphs: An Approach for Modeling and Comparing Graph-Based and Sequential Hypotheses.. In: Proc. ECML-PKDD Workshop on New Frontiers in Mining Complex Patterns (NFMCP). Riva del Garda, Italy, 2016
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Atzmueller, Martin ; Schmidt, Andreas ; Kibanov, Mark:DASHTrails: An Approach for Modeling and Analysis of Distribution-Adapted Sequential Hypotheses and Trails.. In: Proc. WWW 2016 (Companion) : IW3C2 / ACM, 2016
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Atzmueller, Martin ; Schmidt, Andreas ; Arnu, David:Sequential Modeling and Structural Anomaly Analytics in Industrial Production Environments.. In: Proc. LWA 2016 (KDML Special Track). Potsdam, Germany : University of Potsdam, 2016
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Gebauer, Lysann ; Söllner, Matthias ; Leimeister, Jan Marco:Marktunterstützung durch vertrauensunterstützende Dienste.. In: Krcmar, H. ; Leimeister, J. M. ; Roßnagel, A. ; Sunyaev, A. (eds.): Cloud-Services aus der Geschäftsperspektive. Wiesbaden : Springer Gabler, 2016, pp. 351–357
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Die Inhalte, die in diesen Kapitel berichtet werden, basieren auf den Publikarionen von Buch/Gebauer (2013). und Buch et al. (2014). Dieses Kapitel Präsentiert die Inhalte dieser beiden Publikationen in Verkürzter und zusammenfassender Form. Detaillierte Ergebnisse finden Sie in den Publikationen.
Fliaster, Alexander ; Dellermann, Dominik:The Risks of Digital Innovation: An Ecosystem Perspective.. In: Workshop Organizing for Digital Innovation. Amsterdam, The Netherlands, 2016
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Gebauer, Lysann ; Söllner, Matthias ; Leimeister, Jan Marco:Vertrauensunterstützende Mehrwertdienste – Ein systematisches Vorgehen zur Förderung von Vertrauen im Cloud-Computing-Umfeld.. In: Krcmar, H. ; Leimeister, J. M. ; Roßnagel, A. ; Sunyaev, A. (eds.): Cloud-Services aus der Geschäftsperspektive. Wiesbaden : Springer Gabler, 2016, pp. 171–185
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Jandt, Silke ; Nebel, Maxi ; Nielsen, Achim: Elektronische Gerichtsakten – Neue Herausforderungen für die Tätigkeit des Sachverständigen. In: Der Sachverständige (2016), pp. 248–254
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Gebauer, Lysann ; Söllner, Matthias ; Leimeister, Jan Marco:Vertrauensproblematiken im Cloud-Computing-Umfeld.. In: Krcmar, H. ; Leimeister, J. M. ; Roßnagel, A. ; Sunyaev, A. (eds.): Cloud-Services aus der Geschäftsperspektive. Wiesbaden : Springer Gabler, 2016, pp. 59–69
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Gebauer, Lysann ; Söllner, Matthias ; Söllner, Jan Marco:Vertrauensproblematiken im Cloud-Computing-Umfeld.. In: Krcmar, H. ; Leimeister, J. M. ; Roßnagel, A. ; Sunyaev, A. (eds.): Cloud-Services aus der Geschäftsperspektive. Wiesbaden : Springer Gabler, 2016, pp. 59–69
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Vier jahre in Folge war Cloud-Computing, gemäβ der jährlich durchgeführten BITKOM-Umfrage„IT Trends des Jahres˝, das wichtigste Thema in der IKT-Branche (BITKOM 2010,2011,2012,2013). Cloud-Computing wird gehandelt als „long-held dream of computing as a utility˝ (Armbrust et al.2010, S.50), der sich endlich bewahrheitet. Es bietet Unternehmen eine Lösung, um hohe Wartungskosten zu senken, die internen Enerfieverbrauch zu verringern sowie agiler auf geänderte Geschäftsanforderungen zu reagieren (IDC 2011).
Gebhardt, Jörg ; Froese, Thomas ; Krüger, Andreas ; Appel, Jörg ; Benner, Raphael ; Hammer, Markus ; Altermann, Alexandra ; Hochrein, Thomas ; et al.:Statusreport: Chancen mit Big Data -- Best Practice : VDI/VDE-Gesellschaft Mess- und Automatisierungstechnik, 2016
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Durward, David ; Blohm, Ivo ; Leimeister, Jan Marco:Is There PAPA in Crowd Work? - A Literature Review on Ethical Dimensions in Crowdsourcing.. In: The IEEE International Conference on Internet of People. Toulouse, France, 2016
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Atzmueller, Martin ; Mollenhauer, Dennis ; Schmidt, Andreas:Big Data Analytics Using Local Exceptionality Detection.. In: Enterprise Big Data Engineering, Analytics, and Management. Hershey, PA, USA : IGI Global, 2016
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Kleinschmidt, Stefan ; Burkhard, Barbara ; Hess, Manuel ; Peters, Christoph ; Leimeister, Jan Marco:Towards design principles for aligning human-centered service systems and corresponding business models.. In: International Conference on Information Systems (ICIS). Dublin, Ireland, 2016
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Kleinschmidt, Stefan ; Peters, Christoph ; Leimeister, Jan Marco:ICT-enabled service innovation in human-centered service systems: A systematic literature review.. In: International Conference on Information Systems (ICIS). Dublin, Ireland, 2016
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Calma, Adrian ; Leimeister, Jan Marco ; Lukowicz, Paul ; Oeste-Reiß, Sarah ; Reitmaier, Tobias ; Schmidt, Albrecht ; Sick, Bernhard ; Stumme, Gerd ; et al.:From Active Learning to Dedicated Collaborative Interactive Learning.. In: 4th International Workshop on Self-Optimisation in Autonomic and Organic Computing Systems (SAOS). Berlin, 2016
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Atzmueller, Martin ; Kloepper, Benjamin ; Mawla, Hassan Al ; Jäschke, Benjamin ; Hollender, Martin ; Graube, Markus ; Arnu, David ; Schmidt, Andreas ; et al.: Big Data Analytics for Proactive Industrial Decision Support: Approaches & First Experiences in the Context of the FEE Project. In: atp edition vol. 58 (2016), Nr. 9
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Geihs, Kurt ; Evers, Christoph:User Intervention in Self-adaptive Context-aware Applications.. In: Proceedings of the Australasian Computer Science Week Multiconference, ACSW ’16. Canberra, Australia : ACM, 2016 — ISBN 978-1-4503-4042-7, pp. 51:1–51:8
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Büttner, Barbara ; Geminn, Christian L. ; Hagendorff, Thilo ; Lamla, Jörn ; Ledder, Simon ; Ochs, Carsten ; Pittroff, Fabian:Die Reterritorialisierung des Digitalen. Zur Reaktion nationaler Demokratie auf die Krise der Privatheit nach Snowden. Universität Kassel : Kassel University Press, 2016
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Blohm, Ivo ; Haas, Philipp ; Peters, Christoph ; Jakob, Thomas ; Leimeister, Jan Marco:Managing Disruptive Innovation through Service Systems – The Case of Crowdlending in the Banking Industry.. In: International Conference on Information Systems (ICIS). Dublin, Ireland, 2016
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Hofmann, Kai:Datenschutz in der Industrie 4.0. Neue Lösungsansätze der Europäischen Datenschutzgrundverordnung.. In: Obermaier, R. (ed.): Industrie 4.0 als unternehmerische Gestaltungsaufgabe. Betriebswirtschaftliche, technische und rechtliche Herausforderungen. Wiesbaden : Springer Gabler, 2016, pp. 171–187
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Klöpper, Benjamin ; Dix, Marcel ; Schorer, Lukas ; Ampofo, Ann ; Atzmueller, Martin ; Arnu, David ; Klinkenberg, Ralf:Defining Software Architectures for Big Data Enabled Operator Support Systems.. In: Proc. IEEE International Conference on Industrial Informatics (INDIN). Boston, MA, USA : IEEE Press, 2016
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Ebel, Philipp ; Bretschneider, Ulrich ; Leimeister, Jan Marco: Leveraging Virtual Business Model Innovation: A Framework for Designing New Business Model Development Tools. In: Information Systems Journal (ISJ) vol. Online First (2016)
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Durward, David ; Blohm, Ivo ; Leimeister, Jan Marco:Principal Forms of Crowdsourcing and Crowd Work.. In: Wobbe, W. ; Bova, E. ; Dragomirescu-Gaina, C. (eds.): The Digital Economy And The Single Market - Employment Prospects And Working Conditions in Europe. vol. FEPS - Foundation for European Progressive Studies, 2016, pp. 39–55
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Durward, David ; Blohm, Ivo ; Leimeister, Jan Marco:Rags to Riches - How signaling behaviour causes a power shift in crowdsourcing markets.. In: European Conference on Information Systems (ECIS). Istanbul, Turkey, 2016
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Hornung, Gerrit ; Sixt, Manuela:Cyborgs im Gesundheitswesen: Verfassungs- und sozialrechtliche Implikationen von IT-Enhancement.. In: Spiecker gen. Döhnmann, I. ; Wallrabenstein, A. (eds.): IT-Entwicklungen im Gesundheitswesen: Herausforderungen und Chancen. Frankfurt a.M. : Peter Lang, 2016, pp. 119–152
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Hornung, Gerrit ; Seidel, Knut:Sozialdatenschutz.. In: Fichte, W. ; Plagemann, H. (eds.): Sozialverwaltungsverfahrensrecht. Handbuch. Second.. Baden-Baden : Nomos Verlagsgesellschaft, 2016, pp. 393–421
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Jahn, Andreas ; David, Klaus:Improved Activity Recognition by Using Grouped Activities.. In: Proceedings of the International Conference on Pervasive Computing and Communications Workshops. Sydney, Australia : IEEE, 2016, pp. 1–5
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The information of a person's activity can be used for a multitude of application. Thus, the activity recognition and the improvement of the activity recognition performance is a focus of research. Unfortunately, activities similar to each other are still likely to be mixed up during the activity recognition, resulting in a decrease in activity recognition performance. We propose a lightweight method to improve the recognition performance. By reevaluating recognized activities, we group similar activities to a new activity. We refer the created activity as grouped activity. We evaluate our method with an activity-set of seven activities and compare the results with two common approaches: the average recognition performance of the individual activities and the recognition performance using a generalized activity. We show an F-Measure improvement of up to 6.6 % by using the grouped activity.
A., Baur-Ahrens ; Bieker, F. ; Friedewald, M. ; Geminn, C. ; Hansen, M. ; Karaboga, M. ; Obersteller, H.:Smart Technologies – Workshop on Challenges and Trends for Privacy in a Hyper-connected World.. In: David, A. ; Jan, C. ; Marit, H. ; Fischer-Hübner, S. ; Raab, C. (eds.): Privacy and Identity Management. Time for a Revolution?. vol. 476 : 10th IFIP WG 9.2, 9.5, 9.6/11.7, 11.4, 11.6/SIG 9.2.2 International Summer School, Edinburgh, UK, August 16-21, 2015, Revised Selected Papers, IFIP Advances in Information and Communication Technology, Dordrecht: Springer,, 2016, pp. 111–128
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Hornung, G. ; Engemann, C. (eds.):Der digitale Bürger und seine Identität. Baden-Baden : Nomos Verlagsgesellschaft, 2016
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Hornung, Gerrit ; Engemann, Christian:Einleitung.. In: Hornung, G. ; Engemann, C. (eds.): Der digitale Bürger und seine Identität. Baden-Baden : Nomos Verlagsgesellschaft, 2016, pp. 11–21
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Bitzer, Philipp ; Söllner, Matthias ; Leimeister, Jan Marco: Design Principles for High-Performance Blended Learning Services Delivery - The Case of Software Trainings in Germany. In: Business & Information Systems Engineering (BISE) vol. 58 (2016), Nr. 2, pp. 135–149 (DOI: 10.1007/s12599
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The “perfect” orchestration of training participants, IT and process design is one of the ongoing challenges within blended learning service research and practice. Blended learning services (BLS) offer a great variety of options to design learning processes, overcoming many shortcomings of pure e-learning services and providing better scalability and more advantages for learners than pure face-to-face class teaching. Nevertheless, due to inconclusive results of blended learning design research in the literature, BLS designers can hardly find support for the systematic design of efficient and successful blended learning processes, which would enable a high degree of learning success with a balanced degree of delivery effort. Based on major determinants of BLS processes’ quality, the authors identify, develop, and evaluate design principles for high performance BLS using an action design research approach. They first derive a set of initial design principles, based on insights from literature and own exploratory case studies as well as workshops with experts from the field. They then improve the design principles iteratively in expert workshops as well as apply the design principles in four software training sessions. Finally, they present seven evaluated design principles for BLS, which are the core of a nascent design theory and contribute to a time-efficient and successful BLS delivery. Furthermore, these principles enable practitioners to systematically apply the design knowledge formalized within the principles in order to improve BLS design and delivery.
Hornung, Gerrit:Rechtliche Perspektiven des Identitätsmanagements in Europa.. In: Hornung, G. ; Engemann, C. (eds.): Der digitale Bürger und seine Identität. Baden-Baden : Nomos Verlagsgesellschaft, 2016, pp. 153–185
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Doerfel, Stephan ; Zoller, Daniel ; Singer, Philipp ; Niebler, Thomas ; Hotho, Andreas ; Strohmaier, Markus: What Users Actually do in a Social Tagging System: A Study of User Behavior in BibSonomy. In: ACM Transactions on the Web vol. 10, ACM (2016), Nr. 2, pp. 14:1–14:32
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Social tagging systems have established themselves as an important part in today’s web and have attracted the interest of our research community in a variety of investigations. Henceforth, several aspects of social tagging systems have been discussed and assumptions have emerged on which our community builds their work. Yet, testing such assumptions has been difficult due to the absence of suitable usage data in the past. In this work, we thoroughly investigate and evaluate four aspects about tagging systems, covering social interaction, retrieval of posted resources, the importance of the three different types of entities, users, resources, and tags, as well as connections between these entities’ popularity in posted and in requested content. For that purpose, we examine live server log data gathered from the real-world, public social tagging system BibSonomy. Our empirical results paint a mixed picture about the four aspects. While for some, typical assumptions hold to a certain extent, other aspects need to be reflected in a very critical light. Our observations have implications for the understanding of social tagging systems, and the way they are used on the web. We make the dataset used in this work available to other researchers.
Doerfel, Stephan ; Jäschke, Robert ; Stumme, Gerd: The Role of Cores in Recommender Benchmarking for Social Bookmarking Systems. In: ACM Transactions on Intelligent Systems and Technology vol. 7 (2016), Nr. 3, pp. 40:1–40:33
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Social bookmarking systems have established themselves as an important part in today’s web. In such systems, tag recommender systems support users during the posting of a resource by suggesting suitable tags. Tag recommender algorithms have often been evaluated in offline benchmarking experiments. Yet, the particular setup of such experiments has rarely been analyzed. In particular, since the recommendation quality usually suffers from difficulties like the sparsity of the data or the cold start problem for new resources or users, datasets have often been pruned to so-called cores (specific subsets of the original datasets) – however without much consideration of the implications on the benchmarking results. In this paper, we generalize the notion of a core by introducing the new notion of a set-core – which is independent of any graph structure – to overcome a structural drawback in the previous constructions of cores on tagging data. We show that problems caused by some types of cores can be eliminated using setcores. Further, we present a thorough analysis of tag recommender benchmarking setups using cores. To that end, we conduct a large-scale experiment on four real-world datasets in which we analyze the influence of different cores on the evaluation of recommendation algorithms. We can show that the results of the comparison of different recommendation approaches depends on the selection of core type and level. For the benchmarking of tag recommender algorithms, our results suggest that the evaluation must be set up more carefully and should not be based on one arbitrarily chosen core type and level.
Ebel, Philipp ; Bretschneider, Ulrich ; Leimeister, Jan Marco: Can the Crowd Do the Job? Exploring the Effects of Integrating Customers into a Company’s Business Model Innovation International Journal of Innovation Management. In: International Journal of Innovation Management (IJIM) vol. Online First (2016)
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Hornung, Gerrit:Rechtliche Herausforderungen der Industrie 4.0.. In: Obermaier, R. (ed.): Industrie 4.0 als unternehmerische Gestaltungsaufgabe. Betriebswirtschaftliche, technische und rechtliche Herausforderungen. Wiesbaden : Springer Gabler, 2016, pp. 69–81
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Hofmann, Kai: Die Urheberbezeichnung im Web: Ein Vorschlag zur rechtskonformen technischen Umsetzung der Urheberbezeichnung im isolierten Dateiabruf. In: Zeitschrift für Urheber- und Medienrecht (2016), pp. 25–34
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Dellermann, Dominik ; Kolloch, Michael:The Impact of Controversies on the Evolution of Innovation Ecosystems: Findings from the Energy Industry.. In: R&D Management Conference. Cambridge, United Kingdom, 2016
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Ďuranová, Lenka ; Ohly, Sandra:Persistent Work-related Technology Use, Recovery and Well-being Processes: Focus on Supplemental Work after Hours. ISBN: 978-3-319-24757-1 : Springer International Publishing, 2016
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The aim of this work is to provide insight into the process of employee recovery and well-being in regard to work-related ICT use during after-hours. Therefore, we discuss (1) theories that help us to understand the determinants and outcomes of this behavior, (2) our core concepts recovery and well-being, and (3) previous empirical findings on ICT use after hours for work purposes. On the basis of literature review, we propose a new conceptual overall framework of ICT use after hours for work purposes with the focus on employee recovery and well-being processes. Thereby, we posit ICT use after hours for work purposes as potential stressor, resource, or demand (see action theory by Hacker, 1998, 2003; Frese and Zapf 1994), depending on many personal and environmental factors, but primarily on cognitive appraisals (see transactional model of stress by Lazarus and Folkman 1984). This three-way division enables us to propose various linear and non-linear associations to focused outcomes. We conclude with an overall discussion on further research concerning the identified research gaps.
Ďuranová, Lenka ; Schmitt, Antje ; Braukmann, Johanna ; Ohly, Sandra:Examining the mechanism of supervisory behavior.. In: 31st Annual Conference of the Society for Industrial and Organizational Psychology (SIOP), Anaheim, 2016
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Benner, Anja ; Wagner, Bernd: Filterung eingestellter Bewertungen durch Plattformbetreiber als zulässige Meinungsäußerung, Anmerkung zu KG Berlin, Urteil vom 10.12.2015 - 10 U 26/15. In: jurisPR-ITR (2016)
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Ďuranová, Lenka ; Schmitt, Antje ; Weigelt, Oliver ; Braukmann, Johanna ; Hoffmann, Katja ; Ohly, Sandra:Technology‐assisted supplemental work and sleep – role of mental effort after hours.. In: Vortrag bei der 50. Tagung der Deutschen Gesellschaft für Psychologie (DGPS), 2016
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Ďuranová, Lenka ; Weigelt, Oliver ; Hoffmann, Katja ; Ohly, Sandra:Does Friday work matter for the employee weekend? Relations between subjective performance, work-related technology use at home, and recovery.. In: Biennial Institute of Work Psychology (IWP) Conference, Sheffield, 2016
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Ernst, Sissy-Josefina:Nutzerzentrierte Entwicklung von mobilen Lernanwendungen für China.. In: Mensch und Computer 2016, Doktorandenseminar. Aachen, Deutschland, 2016
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Ernst, Sissy-Josefina ; Janson, Andreas ; Li, Mahei ; Peters, Christoph ; Söllner, Matthias:IT-Kulturkonflikttheorie und ihre Bedeutung für erfolgreiches Service Systems Engineering - Fallstudie eines Einführungsprojektes für mobile Lernanwendungen in China.. In: Multikonferenz Wirtschaftsinformatik (MKWI). Ilmenau, 2016
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Mobiles Lernen ist eine Möglichkeit in Lernumgebungen, welche durch eine hohe Anzahl an Lernenden geprägt sind, praktische Trainings zu unterstützen. Bei der Einführung einer mobilen Lernanwendung in ein bestehendes Servicesystem sind die bestehenden Servicesystemkontexte zu berücksichtigen, da vorhandene Wertvorstellungen in Konflikt mit Werten, die dem neuen Service entgegengebracht werden, treten können. Um diesen Konflikten entgegenzutreten, werden im folgenden Beitrag unter Einbeziehen der IT-Kulturkonflikttheorie potentielle Systemkonflikte am Beispiel eines Einführungsprojekts einer mobilen Lernanwendung an chinesischen Berufsschulen identifiziert. Es wird aufgezeigt, wie die IT-Kulturkonflikttheorie bei der systematischen Gestaltung von Services von Nutzen sein kann und wie Services konform dem vorhandenen Servicesystem bereitgestellt werden können.
Ernst, Sissy-Josefina ; Janson, Andreas ; Söllner, Matthias ; Leimeister, Jan Marco:It’s about Understanding Each Other’s Culture – Improving the Outcomes of Mobile Learning by Avoiding Culture Conflicts.. In: International Conference on Information Systems (ICIS). Dublin, Ireland, 2016
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Dellermann, Dominik ; Jud, Christopher ; Popp, Karl Michael:Why don´t they join? Analyzing the Nature and Consequences of Complementors´ Costs in Platform Ecosystems.. In: International Conference on Information Systems (ICIS). Dublin, Ireland, 2016
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Dellermann, Dominik ; Jud, Christopher:Towards Vivid Ecosystems: Configuring Costs and Benefits via Design Choices.. In: Popp, K. M. ; Buxmann, P. ; Curran, T. A. ; Eichler, G. ; Jansen, S. ; Kude, T. (eds.): Proceedings of the European Workshop on Software Ecosystems. Walldorf, Germany, 2016
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Esslinger, B. ; Schmidt, L. ; Strenge, B. ; Wacker, A.: Unpopuläre E-Mail-Verschlüsselung: Auflösung des Henne-Ei-Problems. In: Datenschutz und Datensicherheit vol. 40 (2016), Nr. 5, pp. 283–289
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E-Mail-Verschlüsselung könnte längst flächendeckend Verwendung finden. Der Beitrag gibt eine Antwort auf die Frage, warum dies nicht der Fall ist - und macht Vorschläge, was getan werden sollte, um dies zu ändern.
Bahle, Gernot ; Calma, Adrian ; Leimeister, Jan Marco ; Lukowicz, Paul ; Oeste-Reiß, Sarah ; Reitmaier, Tobias ; Schmidt, Albrecht ; Sick, Bernhard ; et al.:Lifelong Learning and Collaboration of Smart Technical Systems in Open-Ended Environments – Opportunistic Collaborative Interactive Learning.. In: International Conference on Autonomic Computing. Würzburg, Germany, 2016
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Dellermann, Dominik:The Thrill and the Agony of Digital Ecosystems: A Complementor´s Perspective on Co-Innovation Risk.. In: 10th Ratio Colloquium for Young Social Scientists Organizing for Digitalization (RCYSS). Stockholm, Sweden, 2016
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Geminn, Christian: Das Smart Home als Herausforderung für das Datenschutzrecht. Enthält die Datenschutz-Grundverordnung risikoadäquate Regelungen?. In: Datenschutz und Datensicherheit (2016), pp. 575–580
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Durward, David ; Blohm, Ivo ; Leimeister, Jan Marco: Crowd Work. In: Business & Information Systems Engineering (BISE) vol. 58 (2016), Nr. 4, pp. 281–286
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Geminn, Christian: Demokratie zwischen Öffentlichkeit und Privatheit. In: Verwaltungsarchiv vol. 107 (2016), pp. 601–630
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Heck, Henner:Towards Self-Tests in Distributed Cyber-Physical Systems.. In: Organic Computing – Doctoral Dissertation Colloquium : kassel university press, 2016, pp. 103–109
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Within the industry 4.0 context and growing home and industrial automatisation in general, we expect cyber-physical systems to grow both in number and applied scenarios. Many of these scenarios are bound to have security aspects which need to be considered. In this article, we describe the next step in our research, which is performing self-tests within a distributed cyber-physical system to detect components compromised by an attacker.
Bretschneider, Ulrich ; Leimeister, Jan Marco:Motivation for Open Innovation and Crowdsourcing: Why Does the Crowd Engage in Virtual Ideas Communities?. In: Egger, R. ; Gula, I. ; Walcher, D. (eds.): Open Tourism: Open Innovation, Crowdsourcing and Co-Creation Challenging the Tourism Industry. Springer Berlin Heidelberg, 2016 — ISBN 978-3-642-54089-9, pp. 109–120
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Kniewel, R. ; Schmidt, L.:Empirischer Vergleich der Ablenkung der visuellen Aufmerksamkeit von einer Konzentrationsaufgabe durch Benachrichtigungen auf Smartwatch und Smartphone.. In: Automatisierungstechnik, V.-G. M.- und (ed.): Useware 2016: Mensch-Technik-Interaktion im Industrie 4.0 Zeitalter (Dresden 2016), VDI-Berichte. Düsseldorf : VDI-Verlag, 2016, pp. 53–63
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Benachrichtigungen auf mobilen Endgeräten sind ein Auslöser für die Ablenkung der visuellen Aufmerksamkeit weg von einer aktuell bearbeiteten Aufgabe hin zum Endgerät. Die zunehmende Verbreitung von Smartwatches, die von Herstellern als weniger ablenkend als Smartphones beworben werden und mittels Benachrichtigungen als zentraler Interface-Komponente agieren, lässt die Frage aufkommen, ob Benachrichtigungen auf Smartwatches eine geringere visuelle Ablenkung verursachen als Benachrichtigungen auf Smartphones und worin die Unterschiede bestehen. Dieser Beitrag beschreibt eine empirische Untersuchung mit 40 Probanden, die in vier Doppelaufgabensituationen jeweils hauptsächlich die gleiche Konzentrationsaufgabe zu bearbeiten hatten und nebenbei 12 eingehende Benachrichtigungen lesen und sich bestimmte Informationen merken sollten. Die unabhängigen Variablen waren das Endgerät (Smartphone oder Smartwatch) und die Platzierung des Endgeräts (natürliche oder auf Stativ fixiert). Es wurden objektive Leistungsparameter in der Haupt- und Nebenaufgabe sowie subjektive Parameter, wie die wahrgenommene Ablenkungswirkung der Nebenaufgabe, die Konzentrationsfähigkeit auf die Hauptaufgabe und die wahrgenommene Beanspruchung der Doppelaufgabe erhoben. Auch wurden Blickbewegungen erfasst. Die Erkenntnis dieser Studie ist, dass die Smartwatch-Interaktion im Gegensatz zur Smartphone-Interaktion Vorteile aufweist. Die Leistung in der Hauptaufgabe wurde signifikant weniger negativ beeinflusst. Ebenso wurde sie weniger beanspruchend und weniger ablenkend wahrgenommen.
Kniewel, R. ; Schmidt, L.:Gestaltungsempfehlungen für eine Reisebegleiter-App zur Berücksichtigung der Aufmerksamkeit.. In: Gesellschaft für Arbeitswissenschaft e. V. (ed.): Arbeit in komplexen Systemen - Digital, vernetzt, human?! 62. Kongress der Gesellschaft für Arbeitswissenschaft (Aachen 2016). Dortmund : GfA-Press, 2016, pp. 1–6 (B.5.3)
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In einem Nutzertest mit zwanzig Smartphone-erfahrenen Personen wurde eine prototypisch entwickelte Reisebegleiter-App für Großveranstaltungen im Feld evaluiert. Die Befragungsergebnisse zeigen, dass die Verwendung einer solchen App zur Assistenz von touristischen Aktivitäten zu Konflikten in der Aufmerksamkeitszuwendung führen kann. Auf Basis des Prototyp-Designs und der damit erzielten Ergebnisse werden Gestaltungsempfehlungen für das die Aufmerksamkeit berücksichtigende Design von Reisebegleiter-Apps formuliert.
Grigorjew, Olga: Rechtssicherheit für WLAN-Anbieter? Das EuGH-Urteil zur Haftung beim Betrieb eines offenen WLANs und § 8 Abs. 3 TMG auf dem Prüfstand. In: Kommunikation & Recht (2016), pp. 701–706
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Borys, B.-B. ; Seeger, M. ; Stein, T. ; Schmidt, L.: InterHapt. In: Schlussbericht des BMBF-Projektes, Schlussbericht des BMBF-Projektes.. Fachgebiet Mensch-Maschine-Systemtechnik der Universität Kassel (2016)
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Bei der Interaktion mit den Fingern auf der glatten Fläche eines berührempfindlichen Bildschirms fehlt gegenüber den mechanischen Eingabegeräten die natürliche, über den haptischen Sinn vermittelte Rückmeldung. Diese Rückmeldung wird vielfach künstlich in Form von Vibrationen erzeugt. Es gibt noch keine ausreichenden und systematischen Gestaltungsempfehlungen für die haptische Rückmeldung bei der Nutzung von Touchscreens. Bisherige experimentelle Untersuchun-gen beziehen sich nur auf einzelne, eng umgrenzte Fragestellungen und geben auch keine Hinweise für diesen speziellen Anwendungsfall. Im Projekt InterHapt wurde deshalb die menschliche Wahrnehmung bezüglich haptischer Rückmeldung an Touchscreens untersucht, um Gestaltungsempfehlungen abzuleiten. Der Stand des Wissens über haptische Wahrnehmung, die technischen Möglichkeiten zur Erzeugung haptisch wahrnehmbarer Rückmeldung und die Formen und Einsatzgebiete von Touchscreens wurden erhoben. In einer Nutzerbefragung wurden Umgang und Erfahrung mit Touch-screens und haptischer Rückmeldung bestimmt sowie Handhaltung und benutze Finger ermittelt. In Experimenten wurde fehlendes Wissen über haptische Wahrnehmung ergänzt und in einem Abschlussexperiment die optimale Rückmeldung für unterschiedliche Interaktionselemente bestimmt. Kontaktzeiten und aufgewendete Kräfte, die Wahrnehmungsgrenzen, die Reaktionszeiten für unterschiedliche Formen von Stimuli, die subjektive Einschätzung unterschiedlicher Vibrationsfrequenzen und -amplituden und die als angenehm bewerteten und bevorzugten Kombinationen für unterschiedliche, auf Touchscreens mögliche Interaktionsformen sind damit bekannt. Diese Ergebnisse können zur Implementierung effektiver, effizienter und als angenehm empfundener haptischer Rückmeldung verwendet werden.
Knoell, Daniel ; Atzmueller, Martin ; Rieder, Constantin ; Scherer, Klaus Peter:BISHOP – Big Data Driven Self-Learning Support for High-performance Ontology Population.. In: Proc. LWA 2016 (FGWM Special Track). Potsdam, Germany : University of Potsdam, 2016
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Anderson, Christoph ; Heissler, Clara ; Ohly, Sandra ; David, Klaus:Assessment of Social Roles for Interruption Management: A New Concept in the Field of Interruptibility.. In: Proceedings of the 2016 ACM International Joint Conference on Pervasive and Ubiquitous Computing: Adjunct, UbiComp ’16. Heidelberg, Germany : ACM, 2016 — ISBN 978-1-4503-4462-3, pp. 1530–1535
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Determining and identifying opportune moments for interruptions is a challenging task in Ubiquitous Computing and Human-Computer-Interaction. The current state-of-the-art approaches do this by identifying breakpoints either in user tasks, activities or by processing social relationships and contents of interruptions. However, from a psychological perspective, not all of these breakpoints represent opportune moments for interruptions. In this paper, we propose a new concept in the field of interruptibility. The concept is based on role theory and psychological interruption research. In particular, we argue that social roles which define sets of norms, expectations, rules and behaviours can provide useful information about the user's current context that can be used to enhance interruption management systems. Based on this concept, we propose a prototype system architecture that uses social roles to detect opportune moments for interruptions.
Janson, Andreas ; Ernst, Sissy-Josefina ; Söllner, Matthias:How Cultural Values Influence the Appropriation of Technology-Mediated Learning.. In: European Conference on Information Systems (ECIS). Istanbul, Turkey, 2016
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Information technology (IT) is an important enabler of innovative learning scenarios. Today, numerous IT-enabled learning scenarios – often referred to as technology-mediated learning (TML) – such as massive open online courses, are applied worldwide across different cultures. However, little insights are available regarding the appropriation of TML and how culture influences the appropriation process. Based on adaptive structuration theory and espoused cultural values, we develop and evaluate a theoretical model capturing the cultural effects in the context of TML appropriation. By means of structural equation modeling and a partial least squares approach, we research the moderating role of espoused cultural values and its influence on TML appropriation. The results show that faithfulness, comfort with technology, and collaborative learning appropriation significantly affect learning success as appropriation outcome. Moreover, the results indicate that espoused cultural values influence the appropriation of TML. The present paper thus theoretically contributes to the scientific discussion concerning TML appropriation and the impact of culture on the deployment of IT while also making a practical contribution by deriving implications for TML application across different cultures. Keywords: Appropriation, Technology-Mediated Learning, Espoused Cultural Values, Adaptive Structuration Theory.
Heußner, M. ; Löffler, B. ; Schmidt, L.:Design and implementation of a concept for two-way exchange and network building of professionals from different working fields within the context of AAL.. In: Wichert, R. ; Klausing, H. (eds.): Ambient Assisted Living: 8. AAL-Kongress (Frankfurt 2015). Cham : Springer, 2016, pp. 111–122
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In the context of Ambient Assisted Living (AAL) it will get more and more important to know about AAL technologies for skilled employees who will be confronted with these technologies in the future. Currently most of them have less or no knowledge about it. Therefore we designed a further education that addresses two professional groups: Persons with a social and technical working background among which we want to enhance an exchange. The didactic method of tandem learning - known from learning foreign languages - is applied, so people from various working fields can learn with and from each other. The concept follows a blended learning approach with a presence part in combination with an e-learning part. Within a first pilot run with we tested the concept of the further education. In the following we present main results of the accompanying evaluation concerning network aspects and the two-way exchange among the participants of our further education. The results indicate that our concept was successful.
Knote, Robin ; Söllner, Matthias ; Leimeister, Jan Marco:Rethinking Service Quality for Context-Sensitive Socio-Technical Systems.. In: AIS SIG Services Pre-ECIS Workshop. Istanbul, Turkey, 2016
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Atzmueller, Martin ; Hanika, Tom ; Stumme, Gerd ; Schaller, Richard ; Ludwig, Bernd:Social Event Network Analysis: Structure, Preferences, and Reality.. In: Proc. IEEE/ACM ASONAM. Boston, MA, USA : IEEE Press, 2016
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Borchmann, Daniel ; Hanika, Tom:Some Experimental Results on Randomly Generating Formal Contexts.. In: Huchard, M. ; Kuznetsov, S. (eds.): CLA, CEUR Workshop Proceedings. vol. 1624 : CEUR-WS.org, 2016, pp. 57–69
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Knote, Robin ; Blohm, Ivo:Deconstructing the Sharing Economy: On the relevance for IS research.. In: Multikonferenz Wirtschaftsinformatik (MKWI). Ilmenau, 2016
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Janson, Andreas ; Söllner, Matthias ; Leimeister, Jan Marco:The Appropriation of Collaborative Learning – Qualitative Insights from a Flipped Classroom.. In: Hawaii International Conference on System Sciences (HICSS). Kauai, Hawaii, USA, 2016
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Knote, Robin ; Blohm, Ivo:It’s not about having Ideas - It’s about making Ideas happen! Fostering Exploratory Innovation with the Intrapreneur Accelerator.. In: European Conference on Information Systems (ECIS). Istanbul, Turkey, 2016
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Knote, Robin ; Baraki, Harun ; Söllner, Matthias ; Geihs, Kurt ; Leimeister, Jan Marco:From Requirement to Design Patterns for Ubiquitous Computing Applications.. In: 21st European Conference on Pattern Languages of Programs (EuroPlop ’16). Kaufbeuren, Germany, 2016
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Ubiquitous Computing describes a concept where computing appears around us at any time and any location. Respective systems rely on context-sensitivity and adaptability. This means that they constantly collect data of the user and his context to adapt its functionalities to certain situations. Hence, the development of Ubiquitous Computing systems is not only a technical issue and must be considered from a privacy, legal and usability perspective, too. This indicates a need for several experts from different disciplines to participate in the development process, mentioning requirements and evaluating design alternatives. In order to capture the knowledge of these interdisciplinary teams to make it reusable for similar problems, a pattern logic can be applied. In the early phase of a development project, requirement patterns are used to describe recurring requirements for similar problems, whereas in a more advanced development phase, design patterns are deployed to find a suitable design for recurring requirements. However, existing literature does not give sufficient insights on how both concepts are related and how the process of deriving design patterns from requirements (patterns) appears in practice. In our work, we give insights on how trust-related requirements for Ubiquitous Computing applications evolve to interdisciplinary design patterns. We elaborate on a six-step process using an example requirement pattern. With this contribution, we shed light on the relation of interdisciplinary requirement and design patterns and provide experienced practitioners and scholars regarding UC application development a way for systematic and effective pattern utilization.
Atzmueller, Martin:Community Detection: From Plain to Attributed Complex Networks.. In: Proc. ACM Web Science Conference. New York, NY, USA : ACM Press, 2016
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Atzmueller, Martin:Advances in Exploratory Pattern Analytics on Ubiquitous Data and Social Media.. In: Michaelis, S. ; Piatkowski, N. ; Stolpe, M. (eds.): Solving Large Scale Learning Tasks: Challenges and Algorithms. Festschrift in Honour of Prof. Dr. Katharina Morik, LNCS. vol. 9580 : Springer Verlag, 2016
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Atzmueller, Martin:Detecting Community Patterns Capturing Exceptional Link Trails.. In: Proc. IEEE/ACM ASONAM. Boston, MA, USA : IEEE Press, 2016
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Atzmueller, Martin:Local Exceptionality Detection on Social Interaction Networks.. In: Proc. ECML-PKDD 2016: European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases. Heidelberg, Germany : Springer Verlag, 2016
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Herrmann, R. ; Hegenberg, J. ; Schmidt, L.:Evaluation des Leitstands eines Boden-Luft-Servicerobotiksystems für eine Produktionsumgebung.. In: Automatisierungstechnik, V.-G. M.- und (ed.): Useware 2016: Mensch-Technik-Interaktion im Industrie 4.0 Zeitalter (Dresden 2016), VDI-Berichte. Düsseldorf : VDI-Verlag, 2016, pp. 187–199
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Für ein Servicerobotiksystem, welches teilautonom Arbeitsumgebungsfaktoren aufzeichnet sowie Ultraschall- und Thermografiemessungen durchführt, wurde ein mobiler Leitstand konzipiert und realisiert. Der Leitstand besteht aus einem mobilen verstellbaren Montage- und Bildschirmarbeitsplatz für die praktische Vorbereitung, Planung, Überwachung und Dokumentation des Robotereinsatzes sowie einer Datenbrille für die Teleoperation eines Flugroboters. Um die Gebrauchstauglichkeit der Benutzungsschnittstelle des Bildschirmarbeitsplatzes zu evaluieren, wurde eine Untersuchung mit Anwendern in der Produktionsumgebung eines Automobilherstellers durchgeführt. Um die Gebrauchstauglichkeit der Assistenzfunktionen bei der Teleoperation von Flugrobotern zu evaluieren, wurde des Weiteren eine Untersuchung zur Darstellung von Warnmeldungen in Datenbrillen bei einer realen Flugaufgabe durchgeführt. Die Ergebnisse zeigen Verbesserungsmöglichkeiten für die Gestaltung der Benutzungsschnittstelle auf und geben Gestaltungshinweise für die Darstellung von Warnmeldungen in Datenbrillen.
Herrmann, R. ; Hegenberg, J. ; Ziegner, D. ; Schmidt, L.:Empirische Evaluation von Steuerungsarten für Flugroboter.. In: Gesellschaft für Arbeitswissenschaft e. V. (ed.): Arbeit in komplexen Systemen - Digital, vernetzt, human?! 62. Kongress der Gesellschaft für Arbeitswissenschaft (Aachen 2016). Dortmund : GfA-Press, 2016, pp. 1–6 (A.4.9)
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Flugroboter werden immer mehr im industriellen Bereich eingesetzt. Einsatzfelder sind dabei z. B. Inspektionen von schwer zugänglichen Bereichen oder die automatisierte Durchführung von Inventuren in Großlagern. Für die Steuerung solcher Flugroboter steht zumeist eine klassische Remote Control (RC) zur Verfügung, mit der die Freiheitsgrade des Flugroboters über zwei Joysticks gesteuert werden können. Eine solche Steuerung neben der eigentlichen Arbeitsaufgabe zu beherrschen ist für ungeübte Personen nahezu unmöglich. Auf der anderen Seite bietet eine Gestensteuerung eine intuitive und leicht erlernbare Möglichkeit Roboter zu steuern, die natürliche menschliche Kommunikations- und Handlungsweisen berücksichtigt. Daher wurde eine auf Gesten basierende Steuerung für Flugroboter entworfen, die als Ersatz für eine RC dienen kann. Dieser Beitrag stellt das methodische Vorgehen und die Ergebnisse einer nutzerbasierten Evaluation dar, in der Probanden mit einer RC und der entworfenen Gestensteuerung einfache Flugaufgaben lösen sollten. Ziel war insbesondere die Beurteilung der Gebrauchstauglichkeit und der Intuitivität der beiden Steuerungen.
Herrmann, R. ; Schmidt, L.:Evaluation einer Armband-Steuerung für einen Bodenroboter.. In: Pfeiffer, T. ; Fröhlich, J. ; Kruse, R. (eds.): Virtuelle und Erweiterte Realität: 13. Workshop der GI-Fachgruppe VR/AR (Bielefeld 2016). Aachen : Shaker, 2016, pp. 53–64
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Der technologische Fortschritt ermöglicht die Verwendung einer Freihandgestensteuerung in alltäglichen und industriellen Szenarien. Eine neue Möglichkeit Freihandgesten zu erkennen, ist die Verwendung eines bewegungserkennenden Armbandes. Trotz kritischer Anmerkungen hinsichtlich der Gebrauchstauglichkeit von Gesten versprechen sich Forscher von der Verwendung eines Armbandes zur Gestenerkennung u. a. groe Potentiale in der Mensch-Roboter-Interaktion. Grund hierfür ist die aus Anwendersicht einfache und intuitive Verwendung eines Armbandes im Gegensatz zu anderen Verfahren zur Gestenerkennung und die dadurch mögliche Steigerung der Gebrauchstauglichkeit. Inwieweit die Verwendung eines bewegungserkennenden Armbandes für die gestische Teleoperation eines Bodenroboters geeignet ist, wird anhand eines Versuchs mit 23 Teilnehmern ermittelt. Hierfür wurde eine Gestensprache für die Navigation eines Bodenroboters entworfen, bei der die Charakteristiken einer Virtual- oder Augmented-Reality-gestützten Teleoperation berüucksichtigt wurden. Die Erkennung der Gesten wurde mittels eines Armbandes unter Verwendung integrierter Ober flächenelektromyographie (OEMG) und Accelerometer realisiert. Die Ergebnisse zeigen signifikant schlechtere Eigenschaften hinsichtlich Gestenerkennungsraten und Gestenausführungszeiten gegenüber einer marker- und kamerabasierten Lösung. Insbesondere die mit dem Armband realisierte Methode des OEMG zeigt in der Kombination mit der entworfenen Gestensprache deutliche Defizite hinsichtlich der Erkennung der Gesten. Allerdings können hinsichtlich der Intuitivität positive Aspekte aufgezeigt werden.
Heck, Henner ; Gruhl, Christian ; Rudolph, Stefan ; Wacker, Arno ; Sick, Bernhard ; Haehner, Joerg:Multi-k-resilience in distributed adaptive cyber-physical systems.. In: ARCS 2016; 29th International Conference on Architecture of Computing Systems; Proceedings of : VDE, 2016, pp. 1–8
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Johannes, P. C.: Entwurf des eIDAS-Durchführungsgesetzes in der Ressortabstimmung. In: ZD-Aktuell (2016), Nr. 21, p. 05423
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Atzmueller, M. ; Chin, A. ; Janssen, F. ; Schweizer, I. ; Trattner, C. (eds.):Big Data Analytics in the Social and Ubiquitous Context, Lecture Notes in Computer Science. vol. 9546. Heidelberg, Germany : Springer Verlag, 2016
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Atzmueller, Martin ; Fries, Björn ; Hayat, Naveed:Sensing, Processing and Analytics - Augmenting the Ubicon Platform for Anticipatory Ubiquitous Computing.. In: Proc. ACM Conference on Pervasive and Ubiquitous Computing Adjunct Publication, UbiComp ’16 Adjunct. New York, NY, USA : ACM Press, 2016
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Henning-Schulz, Maria:Transparente Demokratie. Baden-Baden : Nomos, 2016
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Atzmueller, Martin ; Ernst, Andreas ; Krebs, Friedrich ; Scholz, Christoph ; Stumme, Gerd:Formation and Temporal Evolution of Social Groups During Coffee Breaks.. In: Postproceedings of the International Workshops MUSE & SenseML 2014, Nancy, France, and MSM 2014, Seoul, Korea, LNAI. Heidelberg, Germany : Springer Verlag, 2016
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Geminn, Christian ; Fuijwara, Shizuo: Das neue japanische Datenschutzrecht – Reform des Act on the Protection of Personal Information. In: Zeitschrift für Datenschutz (2016), pp. 363–368
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Heißler, Clara ; Schmitt, Antje ; Ohly, Sandra:Organizational availability demands and work-life balance: the role of detachment and length of information and communication technology (ICT) use.. In: Teoh, K. ; Dediu, V. ; Saade, N. J. ; Hassard, J. (eds.): Proceedings of the 12th European Academy of Occupational Health Psychology Conference: OHP in Times of Change: Society and the workplace, 2016, p. 134
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Atzmueller, Martin ; Doerfel, Stephan ; Mitzlaff, Folke: Description-Oriented Community Detection using Exhaustive Subgroup Discovery. In: Information Sciences vol. 329 (2016), pp. 965–984. — http://dx.doi.org/10.1016/j.ins.2015.05.008
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Geminn, Christian ; Miedzianowski, Nadine: Privacy-Arena: Ausstellung zum Projektabschluss. In: ZD-Aktuell (2016), Nr. 19
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Geminn, Christian ; Schaller, Fabian: Brexit im Datenschutz. In: ZD-Aktuell (2016), Nr. 17
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Heißler, Clara ; Schmitt, Antje ; Maier, Natalie ; Ossoinig, Verena ; Wojtek, Sebastian ; Ohly, Sandra ; David, Klaus:Can you use innovative technology to reduce ICT demands? Managing smartphone-accessibility with implicit communication.. In: Vortrag bei der 50. Tagung der Deutschen Gesellschaft für Psychologie (DGPS), 2016
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Ghiglieri, Marco ; Hansen, Marit ; Nebel, Maxi ; Pörschke, Julia Victoria ; Simo, Hervais:Smart-TV und Privatheit.. In: Zoche, P. ; Ammicht Quinn, R. ; Friedewald, M. ; Hansen, M. ; Heesen, J. ; Hess, T. ; Lamla, J. ; Matt, C. ; et al. (eds.): Forum Privatheit und selbstbestimmtes Leben in der Digitalen Welt. Karlsruhe, 2016
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Heck, Henner ; Kieselmann, Olga ; Wacker, Arno:Evaluating Connection Resilience for Self-Organized Cyber-Physical Systems.. In: 2016 IEEE 10th International Conference on Self-Adaptive and Self-Organizing Systems (SASO 2016) : IEEE Computer Society, 2016
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Self-organizing cyber-physical systems are expected to become increasingly important in the context of Industry 4.0 automation as well as in everyday scenarios. Resilient communication is crucial for such systems. In general, this can be achieved with redundant communication paths. Mathematically, the amount of redundant paths is expressed with the network connectivity. A high network connectivity is required for collaboration and system-wide self-adaptation even when nodes fail or get compromised by an attacker. In this paper, we analyze the network connectivity of a communication network for large distributed cyber-physical systems. For this, we simulate the communication structure of a CPS with different network parameters to determine its resilience. With our results, we also deduce the required network connectivity for a given number of failing or compromised nodes.
Gertenbach, Lars ; Mönkeberg, Sarah:Lifelogging und vitaler Normalismus. Kultursoziologische Betrachtungen zur Neukonfiguration von Körper und Selbst.. In: Selke, S. (ed.): Lifelogging. Digitale Selbstvermessung und Lebensprotokollierung zwischen disruptiver Technologie und kulturellem Wandel. Wiesbaden : VS Verlag, 2016, pp. 25–43
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Heck, Henner ; Rudolph, Stefan ; Gruhl, Christian ; Wacker, Arno ; Hähner, Jörg ; Sick, Bernhard ; Tomforde, Sven:Towards Autonomous Self-Tests at Runtime.. In: Foundations and Applications of Self* Systems, IEEE International Workshops on : IEEE, 2016, pp. 98–99
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Bretschneider, Ulrich ; Zogaj, Shkodran: Exploring Strategies for Capturing Customer’s Tacit Knowledge in Customer Integration Methods. In: International Journal of Knowledge Management (IJKM) (2016), Nr. 2, pp. 1–19
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2015[ to top ]

Duranová, Lenka ; Ohly, Sandra:Arbeitsbezogene Technologienutzung am Feierabend – Stressor, Demand oder Ressource?. In: Menschen Medien Möglichkeiten: 9. Tagung der Fachgruppe Arbeits-, Organisations- und Wirtschaftspsychologie (AOW) der Deutschen Gesellschaft für Psychologie (DGPs) in Mainz, 24.-26.09.2015, 2015
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Jahn, Andreas ; David, Klaus ; Engel, Sebastian:5G / LTE Based Protection of Vulnerable Road Users: Detection of Crossing a Curb.. In: 2015 IEEE 82nd Vehicular Technology Conference (VTC Fall). Boston, MA, USA : IEEE, 2015 — ISBN 978-1-4799-8091-8, pp. 1–5
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Unfortunately, every year many vulnerable road users (VRUs), such as pedestrians or bicyclists are killed or seriously injured in traffic accidents. Several research groups are working on different solutions including radar or laser based approaches to reduce the number of traffic accidents VRUs are involved. The approach presented in this paper is based on wireless communications such as WLAN and 5G/LTE and a "context filter". The "context filter" identifies vulnerable road users in potentially dangerous situations based on several contexts (VRU position, movement direction, accelerations). An identified dangerous situation is communicated between the VRU and the cars using wireless communication such as ad hoc or cellular systems. As one specifically interesting context for identifying dangerous situations this paper investigates on detecting pedestrians stepping onto the road. We examine smartphone sensor data and several reasoning classifiers to investigate whether "stepping onto the road" by detecting a pedestrian "crossing a curb" is possible. To the best of our knowledge detecting pedestrians crossing a curb by using smartphone sensors, has not been investigated so far.
Jahn, Andreas ; Lau, Sian Lun ; David, Klaus ; Sick, Bernhard:A Toolchain for Context Recognition: Automating the Investigation of a Multitude of Parameter Sets.. In: 2015 IEEE 82nd Vehicular Technology Conference (VTC Fall). Boston, MA, USA : IEEE, 2015 — ISBN 978-1-4799-8091-8, pp. 1–5
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A person's context data can be used for a multitude of applications, such as energy management or health care. Common context recognition approaches rely on several factors, such as the sensor set, features, or the context modeling algorithm. Discovering the recognition performances of different parameter setting combinations is a complex, time-consuming, and error-prone task. To support the context recognition research, we present the Context Recognition Assistance Tool (CRAT). The Context Recognition Assistance Tool assist by automatically conducting the evaluation for a multitude combination of parameter settings and clearly presents the findings. Using the CRAT, we investigate to what degree five parameters influence the recognition accuracy. To support the research in the field of context recognition, the CRAT is publicly available.
Leimeister, Jan Marco ; Zogaj, Shkodran ; Durward, David ; Blohm, Ivo:Crowdsourcing und Crowd Work - Neue Formen digitaler Arbeit.. In: Bullinger, A. (ed.): Mensch 2020 - transdisziplinäre Perspektiven. Chemnitz : Verlag aw&I Wissenschaft und Praxis, 2015, pp. 119–124
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Radziwill, M. ; Kniewel, R. ; Schmidt, L.:Nutzungsbarrieren im Bereich Smartphone-assistierter, multimodaler Mobilität bei älteren Nutzern.. In: Gesellschaft für Arbeitswissenschaft e. V. (ed.): VerANTWORTung für die Arbeit der Zukunft: 61. Kongress der Gesellschaft für Arbeitswissenschaft (Karlsruhe 2015). Dortmund : GfA-Press, 2015, pp. 1–6 (C.2.19)
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Um Nutzungsbarrieren bei der Smartphone-basierten multi-modalen Mobilitätsassistenz in Bezug auf Nutzer unterschiedlicher Technikgenerationen zu identifizieren, wurden die Aspekte Gebrauchs-tauglichkeit und Akzeptanz im Rahmen einer Laborstudie mit zwei Alters-kohorten evaluiert. Die Ergebnisse der Studie zeigen, dass die unter-suchte Applikation "Moovel" von beiden Alterskohorten eine hohe Akzeptanz und subjektiv empfundene Gebrauchstauglichkeit erfährt. Objektiv konnten jedoch, in Bezug auf Effektivität und Effizienz, auch signifikante Unterschiede zwischen den Versuchsgruppen festgestellt werden, welche Nutzungsbarrieren und somit Gestaltungspotentiale für die Weiterentwicklung multimodaler Mobilitätsapplikationen aufzeigen.
Janson, Andreas ; Söllner, Matthias ; Leimeister, Jan Marco:Towards a Holistic Understanding of Technology-mediated Learning Appropriation.. In: International Conference on Information Systems (ICIS). Fort Worth, Texas, USA, 2015
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Information technology in the learning process is one major success factor for innovative learning scenarios. A necessary pre-condition is the faithful appropriation of technology-mediated learning (TML) to ensure learning outcomes. However, research still lacks insights concerning determinants and consequences of a faithful TML appropriation. Therefore, this research-in-progress paper presents a mixed-methods research approach to gain a holistic understanding of TML appropriation. First, based on the insights of adaptive structuration theory, a theoretical model is developed considering objective and subjective measures for TML appropriation as well as antecedents and consequences of TML appropriation. Second, the mixed-methods approach is presented in order to evaluate the theoretical model. Our expected contribution to theory includes an extension of both TML and adaptive structuration theory with an in-depth view of TML appropriation. Expected practical contributions include the derivation of design implications for TML services that are faithfully appropriated to ensure learning success of TML participants.
Duranová, Lenka ; Ohly, Sandra:Always online for work purposes – stressor, demand, or resource?. In: When, Where and for Whom are Job Resources Beneficial? EAWOP 2015 Small Group Meeting, Norwich, 2015
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Duranová, Lenka ; Schmitt, Antje ; Braukmann, Johanna ; Ohly, Sandra:Effects of daily ICT use for work purposes during non-work time on employee recovery and well-being.. In: The 4th biennial Society for Ambulatory Assessment (SAA) conference, Pennsylvania, 2015
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Philipp, R. (ed.):Privatheit, Öffentlichkeit und demokratische Willensbildung in Zeiten von Big Data. Baden-Baden : Nomos Verlag, 2015
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Duranová, Lenka ; Schmitt, Antje ; Braukmann, Johanna ; Ohly, Sandra:Work related mobile use after hours and affective well-being: The role of ambition and positive work reflection.. In: Respectful and effective leadership - managing people and organizations in turbulent times: The 17th congress of the European Association of Work and Organizational Psychology Oslo, Norway, 2015
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Huber, Michael ; Ebel, Philipp ; Krcmar, Helmut:Technische Umsetzung der TANDEM-Community - Ein IT- Tool zur gemeinschaftlichen Erstellung von Geschäftsmodellen.. In: Leimeister, J. M. ; Krcmar, H. ; Möslein, K. ; Ohly, S. (eds.): Innovieren im demografischen Wandel - Methoden und Konzepte für ein modernes Innovationsmanagement. Wiesbaden : Springer Fachmedien, 2015, pp. 127–141
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Leimeister, Jan Marco ; Zogaj, Shkodran ; Durward, David ; Bretschneider, Ulrich:Neue Geschäftsfelder durch Crowdsourcing: Crowd-basierte Start-ups als Arbeitsmodell der Zukunft.. In: Hoffmann, R. ; Bogedan, C. (eds.): Arbeit der Zukunft – Möglichkeiten nutzen – Grenzen setzen. Frankfurt am Main : Campus Verlag, 2015, pp. 141–158
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Bretschneider, Ulrich ; Gierczak, Michael ; Sonnick, Anna ; Leimeister, Jan Marco:Auf der Jagd nach dem günstigsten Preis: Was beeinflusst die Kaufabsicht von Nutzern von Produkt- und Preisvergleichsseiten?. In: Linnhoff-Popien, C. ; Zaddach, M. ; Grahl, A. (eds.): Marktplätze im Umbruch - Digitale Strategien für Services im Mobilen Internet (ISBN: 978-3-662-43782-7). Wiesbaden : Springer Vieweg, 2015, pp. 43–53
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Bretschneider, Ulrich ; Gierczak, Michael Marcin:Geiz ist geil: Empirische Untersuchung des Einflusses von Produkt- und Preisvergleichsseiten im Internet auf die Kaufabsicht ihrer Nutzer.. In: 77. Jahrestagung des VHB. Wien, Österreich, 2015
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Janson, Andreas ; Söllner, Matthias ; Leimeister, Jan Marco:Determinanten und Effekte sinngetreuer Nutzung von Learning Management Systemen.. In: Wirtschaftsinformatik (WI) Konferenz 2015. Osnabrück, Germany, 2015
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IT-Unterstützung im Lernprozess ist ein Schlüsselfaktor für den Erfolg innovativer Lehr-/Lernszenarien. Notwendige Voraussetzung hierfür ist die sinngetreue Nutzung von Learning Management Systemen (LMS) durch den Lernenden, um den Lernerfolg in innovativen Lehr-/Lernszenarien sicherzustellen. Dennoch gibt es bislang kaum Erkenntnisse, was die sinngetreue Nutzung von LMS beeinflusst. Im ersten Schritt werden daher, aufbauend auf den Erkenntnissen der adaptiven Strukturationstheorie, Einflussfaktoren auf die sinngetreue Nutzung von LMS identifiziert und in ein theoretisches Modell eingebettet. Im zweiten Schritt wird dieses Modell als Strukturgleichungsmodell operationalisiert und evaluiert. Die Ergebnisse zeigen, dass die wahrgenommene IT-Unterstützung, Interaktivität und der Task Technology Fit die sinngetreue Nutzung eines LMS signifikant beeinflussen. Zudem zeigen die Ergebnisse, dass die sinngetreue Nutzung ein signifikanter Prädiktor für die Qualität des Lernprozesses und den Lernerfolg darstellt. Damit leistet dieses Paper einen theoretischen Beitrag zur wissenschaftlichen Diskussion des IT-unterstützten Lernprozesses und einen praktischen Beitrag, indem Implikationen für den Einsatz von LMS abgeleitet werden.
Lehmann, Katja ; Söllner, Matthias ; Leimeister, Jan Marco:Der Wert von IT-gestütztem Peer Assessment zur Unterstützung des Lernens in einer Universitären Massenlehrveranstaltung.. In: Wirtschaftsinformatik (WI) Konferenz 2015. Osnabrück, Germany, 2015
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Steigende Studierendenzahlen prägen nach wie vor das Bild an deutschen Universitäten, wodurch in Massenlehrveranstaltungen auf einen Dozent weit über 100 Studierende kommen. Diese Lehrveranstaltungen sind durch mangelnde Interaktion zwischen allen Beteiligten und wenig Feedback für Studierende zu ihrem Lernstand gekennzeichnet. Das ist problematisch, da insbesondere diese Faktoren Prädiktoren für individuellen Lernerfolg und Zufriedenheit darstellen. Der Einsatz von IT-gestütztem Peer Assessment ist eine Möglichkeit, Interaktion und Feedback in den Lernprozess zu integrieren ohne den Dozenten zusätzlich zu belasten. Dabei beurteilen Lernende wechselseitig die Qualität der Arbeit von Anderen. Der vorliegende Beitrag untersucht, wie ITgestütztes Peer Assessment in eine Blended-Learning Massenlehrveranstaltung integriert werden kann. Die Ergebnisse zeigen, dass Peer Assessment eine wichtige Rolle für wahrgenommenen Lernerfolg und Zufriedenheit spielt sowie von Studierenden als hilfreich empfunden wird. Der praktische Beitrag zeigt wie Massenlehrveranstaltungen ressourcenschonend bereichert werden können. Zudem wird als theoretischer Beitrag die Rolle der Einbindung von Peers in den Lernprozess betont.
Lehmann, Katja ; Leimeister, Jan Marco:Theory-Driven Design of an IT-Based Peer Assessment to Assess High Cognitive Levels of Educational Objectives in Large-Scale Learning Services.. In: European Conference on Information Systems (ECIS). Münster, Germany, 2015
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Roßnagel, Alexander: Das vernetzte Automobil – sichere und freie Mobilität. In: Datenschutz und Datensicherheit vol. 39 (2015), Nr. 6, pp. 345–346
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Calma, A. ; Jänicke, M. ; Kantert, J. ; Kopal, N. ; Siefert, F. ; Tomforde, S.:Horizontal Integration of Organic Computing and Control Theory Concepts.. In: Sick, B. ; Tomforde, S. (eds.): Organic Computing: Doctoral Dissertation Colloquium 2015. vol. 7 : Kassel University Press GmbH, 2015
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Roßnagel, A.:Sonderregeln für Carsharing aus Gründen des Umwelt- und Klimaschutzes?. In: Hebeler, T. ; Hofmann, E. ; Proelß, A. ; Reiff, P. (eds.): Jahrbuch des Umwelt- und Technikrechts 2015. vol. 129, 2015, pp. 105–139
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Roßnagel, A. (ed.):Wolken über dem Rechtsstaat? Recht und Technik des Cloud Computing in Verwaltung und Wirtschaft, Der elektronische Rechtsverkehr. vol. 33. Baden-Baden : Nomos Verlag, 2015
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Henschke, C. ; Roßnagel, A.: Von den Mühen, sich anzupassen. In: LanInForm – Magazin für Ländliche Räume (2015), pp. 25 – 27
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Roßnagel, A.:Das IT-Sicherheitsgesetz.. In: Roßnagel, A. ; Hentschel, A. (eds.): Umweltverträgliche Nutzung des Untergrunds und Ressourcenschonung – Anforderungen an die untertägige Raumordnung und das Bergrecht. Dokumentation der Fachtagung am 25. November 2014 in Kassel : Umweltbundesamt, 2015, pp. 97–112
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Leimeister, Jan Marco:Einführung in die Wirtschaftsinformatik. 12. ed.. Berlin Heidelberg : Gabler Verlag, 2015
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Das Buch gibt eine fundierte und praxisbezogene Einführung in das Gesamtgebiet der Wirtschaftsinformatik. Aufbauend auf den bewährten Vorgängerauflagen von Stahlknecht und Hasenkamp wurde die 12. Auflage komplett überarbeitet, strukturell weiterentwickelt und aktualisiert. Die Schwerpunkte umfassen u.a. Systemplattformen, (Hardware, Betriebssysteme), Kommunikationssysteme, Datenbanken, Systementwicklung, IT-Anwendungssysteme, IT-Management und Digital Business.
Roßnagel, A.:Datenschutzfragen des Cloud Computing.. In: Roßnagel, A. (ed.): Wolken über dem Rechtsstaat? : Recht und Technik des Cloud Computing in Verwaltung und Wirtschaft : Nomos, 2015, pp. 21–52
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Roßnagel, Alexander: Was bringt das neue europäische Datenschutzrecht für die Verbraucher? – Die Datenschutzgrundverordnung steht vor ihrer Verabschiedung. In: Verbaucher und Recht vol. 30 (2015), Nr. 10, pp. 361–362
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Roßnagel, Alexander: Der Anwendungsvorrang der eIDAS-Verordnung. Welche Regelungen des deutschen Rechts sind weiterhin für eCommerce elektronische Signaturen anwendbar?. In: Multimedia und Recht vol. 18 (2015), Nr. 6, pp. 359–364
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Roßnagel, Alexander: Grundrechtsausgleich beim vernetzten Automobil – Herausforderungen, Leistungsfähigkeit und Gestaltungsbedarf des Rechts. In: Datenschutz und Datensicherheit vol. 39 (2015), pp. 353–358
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Bretschneider, Ulrich ; Leimeister, Jan Marco ; Mathiassen, Lars: IT-enabled Product Innovation: Customer Motivation for Participating in Virtual Idea Communities. In: International Journal of Product Development vol. 20 (2015), Nr. 2, pp. 126–141
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Jandt, Silke ; Hohmann, Carolin:Life-Style, Fitness- und Gesundheits-Apps - Laufen Datenschutz und Vertraulichkeit hinterher?. In: Taeger, J. (ed.): Internet der Dinge - Digitalisierung von Wirtschaft und Gesellschaft - Tagungsband Herbstakademie 2015. Edewecht, 2015, pp. 17–34
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Jandt, Silke: Beweissicherheit im elektronischen Rechtsverkehr - Die Folgen der europäischen Harmonisierung. In: Neue Juristische Wochenschrift (2015), Nr. 17, pp. 1205–1211
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Leimeister, Jan Marco ; Zogaj, Shkodran ; Durward, David ; Blohm, Ivo:Arbeit und IT: Crowdsourcing und Crowdwork als neue Arbeits- und Beschäftigungsformen.. In: ver.di – Vereinte Dienstleistungsgewerkschaft. vol. Gute Arbeit und Digitalisierung: Prozessanalysen und Gestaltungsperspektiven für eine humane digitale Arbeitswelt, 2015, pp. 66–79
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Roßnagel, Alexander: Unabhängigkeit der Datenschutzaufsicht. In: Zeitschrift für Datenschutz vol. 5 (2015), Nr. 3, pp. 106–111
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Jandt, Silke: Big Data und die Zukunft des Scoring. In: Kommunikation und Recht vol. Begleitheft zu Heft 5 (2015), pp. 6–8
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Leimeister, Jan Marco ; Österle, Hubert ; Alter, Steven: Digital services for consumers. In: Electronic Markets (DOI: 10.1007/s12525-014-0174-6) vol. 24 (2015), Nr. 4
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De Sanctis, Martina ; Geihs, Kurt ; Bucchiarone, Antonio ; Valetto, Giuseppe ; Marconi, Annapaola ; Pistore, Marco:Distributed Service Co-evolution based on Domain Objects.. In: 11th Int. Workshop on Engineering Service-Oriented Applications (WESOA’15), colocated with ICSOC 2015. Goa, India, 2015
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Service evolution is a critical ingredient of the service life-cycle. The more our society depends on large-scale, complex service environments including cloud and mobile services, the more pressing becomes the question of how to evolve a service on-the-fly at runtime without bringing whole systems to a halt. Service inter–dependencies make it increasingly difficult to manage the service collection as a whole. Thus, there is an urgent need for coordinated service evolution. The main contributions of this paper are a conceptual solution for dynamic on-the-fly co-evolution of services, and a framework that supports the engineering of such co-evolution support. We analyze the types of changes that might happen in a service and their potential impact on dependent clients and servers. We present the design of a co-evolution support infrastructure based on a service computing model and platform. Our solution is built on top of the Domain Object concept, and our application domain is smart urban mobility.
Janson, Andreas:Understanding and Engaging the Appropriation of Technology-mediated Learning – A Theory-driven Design Approach.. In: International Conference on Information Systems (ICIS) 2015, Doctoral Consortium. Fort Worth, Texas, USA, 2015
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Leicht, Niklas ; Durward, David ; Blohm, Ivo ; Leimeister, Jan Marco:Crowdsourcing in Software Development: A State-of-the-Art Analysis.. In: 28th Bled eConference. Maribor, Slovenia, 2015
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Bretschneider, Ulrich ; Hartmann, Marco ; Leimeister, Jan Marco:Fostering Ideation Among Patients: Exaptation of Web-based Ideation Platforms as Health 2.0 Tools for Virtual Patient Communities.. In: International Conference on Information Systems (ICIS). Fort Worth, Texas, USA, 2015
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Janson, Andreas ; Peters, Christoph ; Leimeister, Jan Marco:The efficient provision of culture-sensitive services – a modularization approach.. In: 3rd International Conference on Serviceology (ICServ 2015). San Jose, CA, USA, 2015
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Dellermann, Dominik ; Fliaster, Alexander:The Strategic Risks of Software Ecosystems.. In: Popp, K. M. ; Buxmann, P. ; Curran, T. A. ; Eichler, G. ; Jansen, S. ; Kude, T. (eds.): Proceedings of the European Workshop on Software Ecosystems. Walldorf, Germany, 2015
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Leimeister, Jan Marco ; Zogaj, Shkodran:Neue Geschäfts- und Arbeitsformen mit Hilfe der Crowd.. In: RKW Magazin. Die Weisheit von Vielen - Schwerpunkt: Die Crowd-Methode (ISSN -1619-7372). vol. 2, 2015, pp. 26–29
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Lehmann, Katja ; Oeste, Sarah ; Janson, Andreas ; Söllner, Matthias ; Leimeister, Jan Marco: Flipping the Classroom – IT-unterstützte Lerneraktivierung zur Verbesserung des Lernerfolges einer universitären Massenlehrveranstaltung. In: HMD Praxis der Wirtschaftsinformatik vol. 52 (2015), Nr. 1, pp. 81–95
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Durch steigende Studierendenzahlen prägen universitäre Massenlehrveranstaltungen nach wie vor das Bild in der deutschen Hochschullandschaft. Diese Lehrveranstaltungen sind gekennzeichnet durch hohe Anonymität und einen Mangel an Interaktion und Zusammenarbeit. Lernende bleiben sich im Lernprozess weitestgehend selbst überlassen und sind eher Konsumenten der Lerninhalte anstatt selbst im Mittelpunkt der Lernaktivitäten zu stehen. Jedoch bilden vor allem verschiedene Formen der Interaktion entscheidende Faktoren für Lernerfolg und Zufriedenheit eines Einzelnen. Der Flipped Classroom stellt eine Möglichkeit dar, den Nachteilen von universitären Massenlehrveranstaltungen zu begegnen. Der vorliegende Beitrag präsentiert ein IT-gestütztes Flipped Classroom-Konzept am Beispiel einer Wirtschaftsinformatik-Grundlagenveranstaltung. Das Konzept unterteilt die Veranstaltung in vier aufeinander ablaufende Lernphasen: Selbstlernphase, Peer-Lernphase, Transferphase und Vertiefungsphase. Durch die Integration verschiedener Lernmethoden wird sichergestellt, dass zum einen die Potentiale des IT-gestützten Lernens – beispielsweise orts- und zeitunabhängiges Lernen – adressiert und zum anderen die verschiedenen Formen von Interaktion realisiert werden. Durch die intensive Beschäftigung und den intensiven Austausch mit den Lerninhalten wird sichergestellt, dass alle kognitiven Lernzielebenen adressiert und überprüft werden. Der praktische Beitrag zeigt wie Massenlehrveranstaltungen durch Lernmethoden bereichert werden können. Zudem wird als theoretischer Beitrag die aktive Einbindung von Lernenden in den Lernprozess und deren Rolle als Prosument betont. Das Konzept sowie die Ergebnisse des vorgestellten Beitrages lassen sich auf andere Veranstaltungen im universitären Kontext oder die betriebliche Weiterbildung übertragen.
Leimeister, Jan Marco ; Zogaj, Shkodran ; Blohm, Ivo: Dienstleistungen von der Crowd: Crowdsourcing und Crowd Work. In: Service Today vol. Portfolio-Management im Service. Dorsten, KVD - Der Service Verband (2015), pp. 32–34
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Leimeister, Jan Marco ; Zogaj, Shkodran ; Durward, David:New Forms of Employment And IT - Crowdsourcing.. In: 4th Conference of the Regulating for Decent Work Network. Genf, Schweiz, 2015
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Roßnagel, A.:Governanceinnovationen – Klimaanpassungsbeauftragte, Klimaanpassungsmanager, Klimaanpassungsakademie und Umsetzungsverbünde in Nordhessen.. In: Knieling, J. ; Roßnagel, A. (eds.): Governance der Klimaanpassung. Akteure, Organisation und Instrumente für Stadt und Region. vol. 6 : oekom, 2015, pp. 141–157
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Hornung, Gerrit ; Hofmann, Kai:Rechtliche Herausforderungen des Internets der Dinge.. In: Sprenger, F. ; Engemann, C. (eds.): Internet der Dinge. Über smarte Objekte, intelligente Umgebungen und die technische Durchdringung der Welt : transcript, 2015, pp. 181–203
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Liguori, Angelo ; Benedetto, Francesco ; Giunta, Gaetano ; Kopal, Nils ; Wacker, Arno:Analysis and Monitoring of Hidden TCP Traffic Based on an Open-Source Covert Timing Channel.. In: 1st IEEE Workshop on Security and Privacy in Cybermatics (SPiCy 2015), held in conjunction with 3rd International Conference on Communications and Network Security (IEEE CNS 2015) : IEEE, 2015, pp. 667–674
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Many contexts dealing with sensitive information require high-robustness and high-assurance certified security systems that should not be affected by known vulnerabilities. Covert channels are illicit paths that could be exploited by attackers to convey illicit data flows that contravene the security policies. Many implementations of the so-called Covert Storage Channels exist, whereas no implementation of Covert Timing Channels is available. In this paper, we first discuss an Open-Source Covert Timing Channel implementation, describing in detail our innovative approach. Then, we analyze real TCP traffic in the presence of our covert channel for three scenarios of interest, varying the number of hops and round trip time of the connections. The results, from real network traffic monitoring, confirm the validity of our open-source covert timing channel implementation for hidden TCP traffic analysis, in different environmental and operating network conditions.
Nebel, Maxi: Schutz der Persönlichkeit – Privatheit oder Selbstbestimmung?. In: Zeitschrift für Datenschutz (2015), Nr. 11, pp. 517–522
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Geihs, Kurt:Ubiquitäre IKT-Systeme und -Anwendungen.. In: Schröder, A. ; Sommerlatte, T. (eds.): Innovationsführerschaft - Credo und Praxis. First.. Düsseldorf : Symposion Publishing, 2015
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Niemczyk, Stefan ; Geihs, Kurt:Adaptive Run-Time Models for Groups of Autonomous Robots.. In: 2015 IEEE/ACM 10th International Symposium on Software Engineering for Adaptive and Self-Managing Systems (SEAMS) : IEEE, 2015 — ISBN 978-0-7695-5567-6, pp. 127–133
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Nguyen, Xuan Thang ; Tran, Huu Tam ; Baraki, Harun ; Geihs, Kurt:FRASAD: A Framework for Model-driven IoT Application Development.. In: IEEE 2nd World Forum on Internet of Things (WF-IoT). Milan, Italy, 2015
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This paper presents FRASAD, an effective model-driven software development framework to manage the complexity of Internet of Things (IoT) applications. We propose a node-centric software architecture and a rule-based programming model that allow designers to describe their application using only sensor node domain concepts. The final application code is successively generated from the initial models through an automatic model transformation process. The evaluation results show that our framework enables a fast way to develop IoT applications by reducing the cost of dealing with the heterogeneity and complexity exhibited by sensor nodes and their operating systems.
Marschall, Kevin: EU-DSGVO: Meldepflicht bei Datenpannen. In: BvD-News - Fachmagazin für den Datenschutz (2015), Nr. 1, pp. 30–32
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Geminn, Christian L.: Crypto Wars Reloaded?. In: Datenschutz und Datensicherheit (2015), Nr. 8, pp. 546–547
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Marschall, Kevin: Wann drohen schwerwiegende Beeinträchtigungen im Rahmen von § 42a BDSG? Mehr Rechtssicherheit durch mehr Informationen?. In: Recht der Datenverarbeitung (2015), Nr. 1, pp. 17–23
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Geminn, Christian L.: Die Debatte um nationales Routing – eine Scheindebatte? Eine kritische Beschau der Argumentationslinien. In: Multimedia und Recht (2015), Nr. 2, pp. 98–103
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Marschall, Kevin: Datenpannen – „neue“ Meldepflicht nach der europäischen DS-GVO?. In: Datenschutz und Datensicherheit (2015), Nr. 3, pp. 183–189
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Nebel, Maxi ; Karaboga, Murat ; Masur, Philipp ; Matzner, Tobias ; Ochs, Carsten ; Schütz, Philip ; Simo Fhom, Hervais ; Morlok, Tina ; et al. ; Zoche, P. ; Ammicht Quinn, R. ; Lamla, J. ; Hansen, M. ; Heesen, J. ; Hess, T. ; Matt, C. ; Roßnagel, A. ; et al. (eds.):White Paper Das versteckte Internet. Karlsruhe : Forum Privatheit und selbstbestimmtes Leben in der Digitalen Welt, 2015
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Hirdes, Eike M.: Beschreibung von wiederverwendbaren Prozessen zur Erreichung von Lernzielen in Serious Games. In: Research on IT / Service / Innovation / Collaboration vol. 7, Kassel University Press (978-3-7376-0044-6), Kassel, Germany (2015)
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Nebel, Maxi:Facebook knows your vote! – Big Data und der Schutz politischer Meinung in sozialen Netzwerken.. In: Richter, P. (ed.): : Nomos, 2015, pp. 89–110
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Gierczak, Michael Marcin ; Bretschneider, Ulrich ; Haas, Philipp ; Blohm, Ivo ; Leimeister, Jan Marco:Crowdfunding - Outlining the New Era of Fundraising.. In: Gajda, O. ; Brüntje, D. (eds.): Crowdfunding in Europe – State of The Art in Theory And Practice; FGF Studies in Small Business and Entrepreneurship. Cham : Springer Science + Business Media, 2015, pp. 7–23
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Gierczak, Michael Marcin ; Englisch, Oliver ; Bretschneider, Ulrich:Minding the Gap – An Expectation-Disconfirmation Approach to Reward-Based Crowdfunding.. In: European Conference on Information Systems (ECIS). Münster, Germany, 2015
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Gierczak, Michael Marcin ; Nitze, Hans-Kristian:Shine Bright like a Diamond – Exploring the Effects of Online-Product Presentation on Backing Behavior in Reward-based Crowdfunding.. In: European Conference on Information Systems (ECIS). Münster, Germany, 2015
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Nebel, M. ; Zoche, P. ; Ammicht Quinn, R. ; Hansen, M. ; Heesen, J. ; Hess, T. ; Lamla, J. ; Matt, C. ; Roßnagel, A. ; et al. (eds.):Selbstbestimmung in der Arbeitswelt. Karlsruhe, 2015
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Maier, Natalie ; Ossoinig, Verena: Rechtsfragen und praktische Tipps bei der Ortung durch Smartphone-Apps. In: Verbraucher und Recht vol. 30 (2015), Nr. 9, pp. 330–336
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Heußner, M. ; Löffler, B. ; Ackermann, L. ; Thillainathan, N. ; Prinz, A. ; Schmidt, L. ; Leimeister, J. M.: TAAndem. In: Schlussbericht des BMBF-Projektes, Schlussbericht des BMBF-Projektes.. Fachgebiet Mensch-Maschine-Systemtechnik und Fachgebiet Wirtschaftsinformatik der Universität Kassel (2015)
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In diesem Dokument werden die Ergebnisse und Erkenntnisse aus dem Forschungsprojekt "AAL-Weiterbildung im Tandem (TAAndem)" vorgestellt. Im Rahmen des Forschungsprojekts wurde eine gemeinsame berufliche Weiterbildungsmaßnahme in Form von Blended Learning für Personen sowohl aus pflegerischen bzw. sozialen Berufen als auch aus handwerklichen bzw. technischen Berufen konzipiert und erprobt. Es konnte gezeigt werden, dass der aus dem Sprachenlernen bekannte Tandemlernansatz im Kontext von Ambient Assisted Living (AAL) auf unterschiedliche Berufsgruppen übertragen werden kann. Es hat sich gezeigt, dass ein gemeinsames Lernen und die gegenseitige Vernetzung beider Berufsgruppen für die Erschließung des Themas AAL und die Entwicklung von Beratungskompetenz in diesem Themenfeld sehr hilfreich und nützlich sind. Zur Förderung des gemeinsamen Lernens sind verschiedene Konzepte und Materialien entwickelt worden. Dies geschah sowohl für eine Präsenzphase (Vorträge und Übungen für das Lernen im Tandem), als auch für eine Selbstlernphase (E-Learning). So ist für die Selbstlernphase u. a. ein browserbasiertes Lernspiel mit praxisnahen Fallbeispielen und entsprechenden Inhalten entwickelt worden. Zunächst wurden mit möglichen Teilnehmern der TAAndem-Weiterbildung eine Anforderungserhebung durchgeführt und entsprechende Weiterbildungsinhalte entwickelt. Um die einzelnen Konzeptteile der Weiterbildung zu erproben, wurden diese anschließend mit Personen aus der Zielgruppe getestet (u. a. in Form eines AAL-Schnuppertages) und dann anhand der Ergebnisse weiterentwickelt. Zur Evaluation der gesamten Weiterbildung wurde Anfang 2014 ein Pilotdurchlauf mit 18 Teilnehmer(inne)n aus sozialen und technischen Berufen durchgeführt und wissenschaftlich analysiert, u. a. auf Basis verschiedener Teilnehmerbefragungen. Insgesamt konnte der Erfolg des TAAndem-Weiterbildungsansatzes durch die Evaluationsergebnisse nachgewiesen werden. Hinsichtlich einzelner Teilaspekte, z. B. bezogen auf das E-Learning, bestand allerdings noch Überarbeitungsbedarf im Hinblick auf nachfolgende Weiterbildungstermine. Durch das Projekt war es möglich, wichtige grundlegende Hinweise auf die Ausgestaltung von beruflichen Qualifikationsmaßnahmen im Themenfeld AAL zu erlangen, um einen Beitrag zu leisten, langfristig die Akzeptanz von AAL bei den Endnutzern und Berufspraktikern zu steigern. Die Projektergebnisse können für weiterführende Forschungsarbeiten in diesem Themenfeld genutzt werden.
Hegenberg, J. ; Herrmann, R. ; Ziegner, D. ; Schmidt, L. ; Günther, T. ; Ordoñez Müller, A. ; Kroll, A. ; Barz, T. ; et al.: Forschungsprojekt Robotair: Praxistaugliches Boden-Luft-Servicerobotersystem für die Inspektion industrieller Druckluftversorgung und die Verbesserung der Arbeitsumgebungsfaktoren. In: Technische Sicherheit vol. 5 (2015), Nr. 5, pp. 16–22
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Ziel des Projekts ist die Entwicklung und Evaluation eines prototypischen, kostengünstigen Boden-Luft-Servicerobotersystems für die Detektion und Ortung von Druckluftlecks und Isolationsschäden an Prozessöfen sowie für die Kartierung von Arbeitsumgebungsfaktoren. Dies dient einer nachhaltigen Ressourcen- und Energienutzung und trägt zur Sicherstellung gesunder Arbeitsbedingungen und zur Steigerung der Produktivität bei. Das System besteht aus einem teleoperiert fliegenden und einem teilautonom fahrenden Roboter, die beide mit intelligenten Multisensor-Modulen ausgestattet sind, sowie einem mobilen Leitstand. Dort wird aus den Sensorsignalen ein aussagekräftiges Lagebild erstellt und visualisiert. Ein Überblick über das System wird abgerundet von ersten Erprobungsergebnissen.
Hentschel, Anja: Verbraucherinformationen zu Lebensmitteln – die neue Lebensmittelinformationsverordnung. In: Verbraucher und Recht (2015), pp. 55–59
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Hentschel, Anja ; Roßnagel, Alexander:Umweltverträgliche Nutzung des Untergrunds und Ressourcenschonung – Anforderungen an die untertägige Raumordnung und das Bergrecht Dokumentation der Fachtagung am 25. November 2014. Kassel : Umweltbundesamt, 2015
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Heck, Henner:Towards a k-Resilient Data Dissemination Mechanism for Peer-to-Peer Networks.. In: Sick, B. ; Tomforde, S. (eds.): Organic Computing: Doctoral Dissertation Colloquium 2015. vol. 7 : Kassel University Press GmbH, 2015, p. 65
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Herterich, Matthias ; Peters, Christoph ; Neff, Alexander ; Uebernickel, Falk ; Brenner, Walter:Mobile Work Support for Field Service: A Literature Review and Directions for Future Research.. In: 12th International Conference on Wirtschaftsinformatik. Osnabrück, Germany, 2015
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Heck, H. ; Edenhofer, S. ; Gruhl, C. ; Lund, A. ; Shuka, R. ; Hähner, J.:On the Application Possibilities of Organic Computing Principles in Socio-technical Systems.. In: Sick, B. ; Tomforde, S. (eds.): Organic Computing: Doctoral Dissertation Colloquium 2015 : Kassel University Press GmbH, 2015
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Heußner, M. ; Löffler, B. ; Schmidt, L.:Untersuchung eines Alterssimulationsanzugs mittels geriatrischer Bewegungstests und Ganganalyse.. In: Gesellschaft für Arbeitswissenschaft e. V. (ed.): VerANTWORTung für die Arbeit der Zukunft: 61. Kongress der Gesellschaft für Arbeitswissenschaft (Karlsruhe 2015). Dortmund : GfA-Press, 2015, pp. 1–6 (B.2.5)
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Um ein höheres Alter von Arbeitspersonen bei der Arbeitsgestaltung prospektiv zu berücksichtigen, werden bspw. Alterssimulationsanzüge entwickelt. Diese schränken u. a. Mobilität und Beweglichkeit ein. Aktuell sind verschiedene Anzüge auf dem Markt verfügbar. Offen ist häufig, ob diese tatsächlich alterstypisch einschränken. Am Beispiel eines Alterssimulationsanzuges mit flexiblen Gurten werden zwei Testverfahren angewendet. Die Ergebnisse von zwei geriatrischen Tests zeigen, dass die Messgrößen sich beim Tragen des Anzuges signikant verschlechtern. Auch die Ganganalyse eines Probanden legt nahe, dass der Anzug alterstypisch einschränkt, was anhand der Schrittlänge und einem weniger dynamischen Bewegungsverlauf sichtbar ist.
Grigorjew, Olga:Beweiseignung fortgeschrittener elektronischer Signaturen, Interdisciplinary Research on Information System Design. vol. 2 : kassel university press, 2015
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Hartmann, Marco: Entwicklung eines Referenzmodells zur systematischen Steigerung der Mitgliederanzahl und der Nutzeraktivität in der Wachstumsphase von Virtuellen Communities. In: Research on IT / Service / Innovation / Collaboration vol. 6, Kassel University Press (978-3-86219-838-2), Kassel, Germany (2015)
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Müller, Frederike ; Oeste, Sarah ; Söllner, Matthias:Entwicklung eines Bewertungsinstruments zur Qualität von Lernmaterial am Beispiel Erklärvideo.. In: Working Paper Series, Nr. 9. Kassel, Germany, 2015
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Hahn, Tobias ; Johannes, Paul C. ; Lange, Benjamin: Schutzschilde gegen die NSA.. In: Datenschutz und Datensicherheit vol. 39 (2015), Nr. 2, pp. 71–77
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Heußner, M. ; Löffler, B. ; Schmidt, L.:AAL-Weiterbildung für Pflege und Handwerk: Ergebnisse des ersten Pilotdurchlaufs.. In: Verband der Elektrotechnik Elektronik Informationstechnik e. V. (ed.): Technologie und Vernetzung für Gesundheit, Selbstständigkeit und Komfort: 8. AAL-Kongress (Frankfurt 2015). Berlin : VDE-Verlag, 2015, pp. 254–259
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Im Frühjahr 2014 fand der erste Pilotdurchlauf der TAAndem-Weiterbildung statt, die derzeit im Rahmen des gleichnamigen und vom BMBF geförderten Projektes "TAAndem - AAL-Weiterbildung im Tandem" entwickelt wird. Ziel des Projektes ist, Personen aus unterschiedlichen Berufsbereichen (hier Personen aus technischen und Personen aus sozialen Berufen), die zukünftig beruflich mit Ambient Assisted Living (AAL) arbeiten werden, durch die Weiterbildung zusammenzubringen, so dass diese beiden Berufsgruppen von und miteinander zum Thema lernen können. Im Projekt wird das sog. Tandemlernen, welches aus dem Fremdsprachenlernen bekannt ist, adaptiert, da davon auszugehen ist, dass beide Berufsgruppen von ihrem bisher (im Beruf) erworbenen Wissen profitieren können. Für die Realisierung der Weiterbildung wird ein Blended-Learning-Ansatz verfolgt, bei dem Präsenzlehre durch ein E-Learning-Angebot zum Selbstlernen ergänzt wird. Die Ergebnisse des ersten Durchlaufs werden in diesem Artikel vorgestellt.
Haas, Philipp ; Blohm, Ivo ; Peters, Christoph ; Leimeister, Jan Marco:Modularization of Crowdfunding Services – Designing Disruptive Innovations in the Banking Industry.. In: International Conference on Information Systems (ICIS). Fort Worth, 2015
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Gruhl, Christian ; Sick, Bernhard ; Wacker, Arno ; Tomforde, Sven ; Hähner, Jörg:A Building Block for Awareness in Technical Systems: Online Novelty Detection and Reaction With an Application in Intrusion Detection.. In: Awareness Science and Technology (iCAST), 2015 IEEE 7th International Conference on. Qinhuangdao, China : IEEE, 2015, pp. 194–200
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In this article we propose a new building block to realize awareness in technical systems, a two-stage algorithm for online novelty detection and reaction in a probabilistic framework. It uses a combination of parametric as well as nonparametric density modeling techniques. First, observed samples are categorized as potentially novel. Then, clusters of potentially novel samples are identified and finally probabilistic models of the observed environment are extended by adding new model components that describe the novel process. To demonstrate the applicability of the proposed algorithm in self-adapting technical systems, we investigate a case study in the field of intrusion detection, where new kinds of attacks have to be identified by an intrusion detection system. That is, the algorithm is used in this article to realize environment-awareness, but it could in principal be taken for self- or context-awareness mechanisms, too.
Ochs, Carsten:BIG DATA - little privacy? Eine soziologische Bestandsaufnahme.. In: Richter, P. (ed.): Privatheit, Öffentlichkeit und demokratische Willensbildung. Baden-Baden : Nomos, 2015, pp. 169–186
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Maier, Natalie ; Ossoinig, Verena: Freizeit und Beruf – Rechtliche und technische Unterstützung der Work-Life-Balance. In: Der Betrieb vol. 68 (2015), Nr. 41, pp. 2391–2396
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Liguori, Angelo ; Benedetto, Francesco ; Giunta, Gaetano ; Kopal, Nils ; Wacker, Arno:SoftGap: a Multi Independent Levels of Security Cross-Domain Solution.. In: 1st International Workshop on Signal Processing for Secure Communications (SP4SC-2015), held in conjunction with 3rd International Conference on Future Internet of Things and Cloud (FiCloud 2015). Rome, Italy : IEEE, 2015
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Hornung, Gerrit:Datenschutzrechtliche Aspekte der Social Media.. In: Hornung, G. ; Müller-Terpitz, R. (eds.): Rechtshandbuch Social Media : Springer, 2015, pp. 79–130
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Hornung, Gerrit: Die Krypto-Debatte: Wiederkehr einer Untoten. In: Editorial, Multimedia und Recht 3/2015 (2015), pp. 145–146
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Hornung, Gerrit:Zwischen Rechtssicherheit und Persönlichkeitsschutz. Rechtsfragen des Identitätsmanagements.. In: Roßnagel, A. (ed.): Wolken über dem Rechtsstaat? Recht und Technik des Cloud Computing in Verwaltung und Wirtschaft : Nomos, 2015, pp. 189–216
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Hornung, Gerrit:Parlamentarisches Kontrollgremium und G 10-Kommission.. In: Morlok, M. ; Schliesky, U. ; Wiefelspütz, D. (eds.): Parlamentsrecht. Praxishandbuch : Nomos, 2015, pp. 928–958
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Hornung, Gerrit:Grundrechtsinnovationen, Jus Publicum : Mohr Siebeck, 2015
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Hornung, Gerrit: Neue Pflichten für Betreiber Kritischer Infrastrukturen: Das IT-Sicherheitsgesetz des Bundes. In: Neue Juristische Wochenschrift (2015), Nr. 46, pp. 3334–3340
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Hornung, Gerrit: Chancen und Risiken der Biometrie aus rechtlicher Sicht: Grundlagen und aktuelle Herausforderungen. In: Sonderbeilage 3/2015 der Zeitschrift für Wett- und Glücksspielrecht (2015), pp. 8–14
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Hornung, Gerrit ; Goeble, Thilo:„Data Ownership“ im vernetzten Automobil. Die rechtliche Analyse des wirtschaftlichen Werts von Automobildaten und ihr Beitrag zum besseren Verständnis der Informationsordnung.. In: Reiffenstein, M. ; Blaschek, B. (eds.): Konsumentenpolitisches Jahrbuch 2015. Trends, Rechtsentwicklung und Judikatur der letzten zwei Jahre : elibrary, 2015, pp. 59–81
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Hornung, Gerrit: Verfügungsrechte an fahrzeugbezogenen Daten. Das vernetzte Automobil zwischen innovativer Wertschöpfung und Persönlichkeitsschutz. In: Datenschutz und Datensicherheit (2015), pp. 359–366
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Hornung, Gerrit ; Hofmann, Kai:Rechtliche Probleme des Datenschutzes und der Kontrollierbarkeit persönlicher Daten.. In: Hirsch-Kreinsen, H. ; Ittermann, P. ; Niehaus, J. (eds.): Digitalisierung industrieller Arbeit : Nomos, 2015, pp. 165–182
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Ebel, Philipp:Designing Tool Support for Collaborative Business Modeling.. In: Leimeister, J. M. (ed.): Working Paper Series, Nr. 14. Kassel, Germany, 2015
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Hornung, G. ; Müller-Terpitz, R. (eds.):Rechtshandbuch Social Media : Springer, 2015
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Hornung, Gerrit ; Müller-Terpitz, Ralf:Einführung in das Rechtshandbuch.. In: Hornung, G. ; Müller-Terpitz, R. (eds.): Rechtshandbuch Social Media : Springer, 2015, pp. 1–9
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Peters, Christoph ; Blohm, Ivo ; Leimeister, Jan Marco: Anatomy of Successful Business Models for Complex Services: Insights from the Telemedicine Field. In: Journal of Management Information Systems (JMIS) vol. 32 (2015), Nr. 3, pp. 75–104
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Peters, Christoph ; Kromat, Theresa ; Leimeister, Jan Marco:Complex Services and According Business Models – Design and Evaluation of an Analysis Framework in the Field of Telemedicine.. In: 48th Hawaiin International Conference on System Sciences (HICSS). Koloa, Hawaii, USA, 2015
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Ebel, Philipp ; Leimeister, Jan Marco:Gemeinschaftliche Geschäftsmodellentwicklung – Wie in heterogenen Teams innovative Geschäftsmodelle geschaffen werden können.. In: Leimeister, J. M. ; Krcmar, H. ; Möslein, K. ; Ohly, S. (eds.): Innovieren im demografischen Wandel - Methoden und Konzepte für ein modernes Innovationsmanagement. Wiesbaden : Springer Fachmedien, 2015, pp. 97–123
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Ernst, Sissy-Josefina ; Janson, Andreas ; Söllner, Matthias ; Leimeister, Jan Marco:When in Rome, do as the Romans do – Overcoming Culture Conflicts in Mobile Learning.. In: International Conference on Information Systems (ICIS). Fort Worth, Texas, USA, 2015
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Mobile learning allows for the embedding of learning into daily routines by means of authentic learning scenarios. In this context, IS research emphasizes the importance of considering individual differences such as cultural differences when using IT in learning scenarios. First, culture is a critical variable that strongly influences IT acceptance and use. Second, teaching concepts differ heavily across cultures. With this research-inprogress paper, we propose a theory-driven design approach to overcome culture conflicts for mobile learning applications. We derive requirements from IT-culture conflict theory and practice, which are addressed by design elements and implemented in a mobile learning application that is now being adapted for China. As a practical contribution of our research, we provide systematic guidance to overcome culture conflicts; as a theoretical contribution, we enrich culture theory by considering and resolving conflicts for mobile learning applications.
Maier, Natalie ; Ossoinig, Verena: Erreichbarkeit steuern. In: Arbeitsrecht im Betrieb vol. 36 (2015), Nr. 9, pp. 32–34
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Oeste, Sarah ; Bittner, Eva ; Söllner, Matthias ; Leimeister, Jan Marco:How to Empower Lecturers to Leverage the Benefits of Peer Learning - Theory-Driven Design of Collaborative Learning Patterns.. In: Annual Meeting of the Academy of Management -PDW ‘Management Education and Learning Writers Workshop’. Vancouver, BC, Canada, 2015
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Gebauer, Lysann ; Söllner, Matthias ; Leimeister, Jan Marco:”What We Do Well and What Should We Do Better?” – Conceptualizing and Measuring ‘IS Use’ by the Synthesis of the Work of the Giants.. In: 75th Annual Meeting of the Academy of Management - OCIS (Organizational Communication & Information Systems) Paper Development Workshop. Vancouver, British Columbia, Canada, 2015
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Hoffmann, Axel ; Schulz, Thomas ; Zirfas, Julia ; Hoffmann, Holger ; Roßnagel, Alexander ; Leimeister, Jan Marco: Legal Compatibility as a Characteristic of Sociotechnical Systems - Goals and Standardized Requirements. In: Business & Information Systems Engineering (BISE) DOI: 10.1007/s12599-015-0373-5 (2015), pp. 1–11
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Gebauer, Lysann ; Kroschwald, Sfeffen ; Wicker, Magda:Anforderungsmuster zur Förderung der Rechtmäßigkeit und Rechtsverträglichkeit von Cloud Computing-Diensten ( Nr. 3). Kassel, Germany : Kassel University Press (ISBN: 978-3-86219-577-0), 2015
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Ochs, Carsten: Die Kontrolle ist tot - lang lebe die Kontrolle! Plädoyer für ein nach-bürgerliches Privatheitsverständnis. In: Mediale Kontrolle unter Beobachtung (2015), Nr. 4
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Gebauer, L. ; Gierczak, M. M. ; Söllner, M. ; Leimeister, J. M.: Einflussfaktoren auf die Nutzung von Cloud-Speicherdiensten. In: Schmalenbachs Zeitschrift für betriebswirtschaftliche Forschung (zfbf) vol. 67 (2015), Nr. 3, pp. 367–407
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Ochs, Carsten: „Selbstdatenschutz“, oder: Kollektive Privatheitspraktiken als politisches Handeln in digitalen Öffentlichkeiten. In: Forschungsjournal soziale Bewegungen (2015), Nr. 3, pp. 45–54
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Oeste, Sarah ; Lehmann, Katja ; Janson, Andreas ; Söllner, Matthias ; Leimeister, Jan Marco:Redesigning University Large Scale Lectures: How To Activate The Learner.. In: Academy of Management Annual Meeting (AOM). Vancouver, BC, Canada, 2015
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Ernst, Sissy-Josefina ; Janson, Andreas ; Söllner, Matthias ; Leimeister, Jan Marco:Kulturkonflikte vermeiden – Mobiles Lernen für China.. In: Mensch & Computer 2015. Stuttgart, Deutschland, 2015
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Mobiles Lernen ist eine Möglichkeit authentisches Lernen in den Alltag zu integrieren. Dabei müssen bei der Gestaltung mobiler Applikationen individuelle Unterschiede, bspw. kultureller Art, berücksichtigt werden. Zum einen beeinflusst Kultur die Nutzung von IT, zum anderen unterscheiden sich Lehrkonzepte zwischen verschiedenen Kulturen wesentlich voneinander. Um diesen Unterschieden Rechnung zu tragen, werden im Beitrag Anforderungen aus der IT-Kulturkonflikttheorie abgeleitet, in Gestaltungsrichtlinien überführt und in einer mobilen Lernanwendung für den Einsatz in China umgesetzt.
Hofmann, Johanna M.:Dynamische Zertifizierung von Cloud Computing- Diensten: Eine rechtswissenschaftliche Betrachtung am Beispiel "Verfügbarkeit".. In: Cunningham, D. W. ; Hofstedt, P. ; Meer, K. ; Schmitt, I. (eds.): INFORMATIK 2015, GI-Edition - Lecture Notes in Informatics (LNI), 2015, pp. 539–552
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Hohmann, Carolin ; Jandt, Silke: Fitness- und Gesundheits-Apps - Neues Schutzkonzept für Gesundheitsdaten?. In: K&R (2015), Nr. 11, pp. 694–700
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Löffler, B. ; Heußner, M. ; Radziwill, M. ; Schmidt, L.:Weiterentwicklung eines E-Learning-Angebots für eine Weiterbildung von Berufstätigen aus dem sozialen und technischen Bereich unter Berücksichtigung von Spielmechaniken.. In: Verband der Elektrotechnik Elektronik Informationstechnik e. V. (ed.): Technologie und Vernetzung für Gesundheit, Selbstständigkeit und Komfort: 8. AAL-Kongress (Frankfurt 2015). Berlin : VDE-Verlag, 2015, pp. 286–291
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Im Projekt "TAAndem - AAL-Weiterbildung im Tandem" wurde unter anderem ein E-Learning-Angebot auf Basis der Software-Umgebung Moodle entwickelt. Damit haben Teilnehmende einer Weiterbildung die Möglichkeit, sich Unterlagen zu den während der Präsenztage behandelten Themeneinheiten herunterzuladen und sich über ein Forum auszutauschen. Ein Lernspiel ist ebenfalls Bestandteil der Plattform: Hier werden die Teilnehmenden als Spieler aufgefordert, ältere Menschen über Ambient Assisted Living (AAL) in Form von Fallbeispielen zu beraten. Die Weiterbildung wurde im Frühjahr 2014 in Form eines Pilotdurchlaufs zum ersten Mal mit 18 Teilnehmenden durchgeführt. Beobachtungen, persönliches Feedback und Fragebogenerhebungen haben ergeben, dass das E-Learning-Angebot nur gelegentlich genutzt wurde und Verbesserungspotential aufweist. Unter Berücksichtigung von Spielemechaniken, die - bei richtiger Anwendung - eine stärkere Bindung zum E-Learning-Angebot herstellen, wurde die Lernplattform überarbeitet. Hierzu wurden die Motivatoren der Teilnehmenden zunächst analysiert und anschließend Spielertypen zugeordnet. In diesem Beitrag wird das überarbeitete E-Learning-Angebot vorgestellt, das neben den Spielmechaniken nutzergerecht angepasst wurde.
Esslinger, Bernd ; Wacker, Arno:IT-Sicherheit.. In: Laudon, K. C. ; Laudon, J. P. ; Schoder, D. ; eds. (eds.): Wirtschaftsinformatik: Eine Einführung (Pearson Studium - Economic BWL). vol. Wirtschaftsinformatik. 3. ed. : Hallbergmoos, Germany: Pearson Deutschland GmbH, 2015, pp. pp. 962–1061
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Die aktualisierte Einführung in die moderne Wirtschaftsinformatik von Kenneth C. Laudon, Jane P. Laudon und Detlef Schoder in der nun dritten, vollständig überarbeiteten und erweiterten deutschsprachigen Auflage begreift Informationssysteme als soziotechnische Systeme und vermittelt diese aus den drei Perspektiven Technik, Management und Organisation. Die Basis dafür ist die 13. Auflage des amerikanischen Weltbestseller-Lehrbuchs Management Information Systems. Managing the Digital Firm von Kenneth C. Laudon und Jane. P. Laudon, dessen Übersetzung Prof. Dr. Detlef Schoder (Universität zu Köln) grundlegend überarbeitet, in Teilen erweitert und auf die Spezifika sowie Bedürfnisse Studierender und Dozenten im deutschsprachigen Raum angepasst hat. Dazu integriert das Buch die Erkenntnisse der beiden Schwesterdisziplinen Information Systems und Wirtschaftsinformatik. Das vierfarbige Werk ist didaktisch und optisch stringent aufgebaut und unterstützt die strukturierte Aneignung des Inhalts. Dazu zählen kapitelbezogene Lernziele, Leitfragen, Gruppenprojekte, rekapitulierende wie auch weiterführende inhaltliche Übungsfragen, eine Zusammenstellung der Schlüsselbegriffe sowie ein ansprechendes Layout. Darüber hinaus illustrieren zahlreiche reale Fallstudien, Projekte und Beispiele die Vielschichtigkeit, Umfänglichkeit und Praxisrelevanz der Wirtschaftsinformatik. Ein umfangreiches Literaturverzeichnis sowie zusätzliche Online-Materialien ergänzen den präsentierten Stoff.
Johannes, Christopher Paul ; Lange, Benjamin ; Hahn, Tobias: Schutzschilde gegen die NSA. In: Datenschutz und Datensicherheit (2015), Nr. 2, pp. 71–77
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Ohly, Sandra ; Schmitt, Antje ; Braukmann, Johanna ; Duranova, Lenka:Use of smartphones for work and well-being in the evening: The role of intrinsic and identified motivation.. In: Opening Governance: Academy of Management 2015 Annual Meeting, Vancouver, Canada, 2015
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Janson, Andreas ; Thiel de Gafenco, Marian:Engaging the Appropriation of Technology-Mediated Learning Services – A Theory-Driven Design Approach.. In: European Conference on Information Systems (ECIS). Münster, Germany, 2015
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Henschel, A. ; Roßnagel, A.:Bedarfsplanung im Bergbau – Protokoll der Podiumsdiskussion.. In: Roßnagel, A. ; Henschel, A. (eds.): Umweltverträgliche Nutzung des Untergrunds und Ressourcenschonung – Anforderungen an die untertägige Raumordnung und das Bergrecht. Dokumentation der Fachtagung am 25. November 2014 in Kassel : Umweltbundesamt, 2015, pp. 121–139
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Schmidt, L.: Mensch-Roboter-Interaktion. In: Tag der Technik, Vortrag, Tag der Technik, Vortrag.. Kassel (2015)
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Karaboga, Murat ; Matzner, Tobias ; Morlok, Tina ; Pittroff, Fabian ; Nebel, Maxi ; Ochs, Carsten ; Pape, Thilo ; Pörschke, Julia V. ; et al. ; Privatheit, F. (ed.):White Paper "Das versteckte Internet. Zu Hause - Im Auto - Am Körper." : Forum Privatheit und selbstbestimmtes Leben in der Digitalen Welt, 2015
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Kibanov, Mark ; Atzmueller, Martin ; Illig, Jens ; Scholz, Christoph ; Barrat, Alain ; Cattuto, Ciro ; Stumme, Gerd: Is Web Content a Good Proxy for Real-Life Interaction? A Case Study Considering Online and Offline Interactions of Computer Scientists (Poster) (2015)
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Kibanov, Mark ; Amin, Imaduddin ; Lee, Jong Gun: Supporting Peat Fire Management using Social Media (2015)
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Peat fires and haze originating from such fires cause a large spectrum of ecological, social and economical problems as well as health issues. Indonesia is a country where peat fires are prevalent and the population suffers from the ensuing haze problems. Two Indonesian islands (Sumatra and Kalimantan) are most affected by peat fires. In this abstract, considering the fact that the usage of social media in Indonesia is high (with 72 million accounts in social networks), it is expected that insights generated from social media can help central and local authorities to improve peat fire management. In particular, we focus on peat fires in the year 2014 in Riau Province, which is one of the most haze-affected areas on Sumatra Island.
Bittner, Eva: How Collaboration Engineering can Improve Team Effectiveness of Heterogeneous Groups. In: Research on IT / Service / Innovation / Collaboration vol. 5, University Press (978-3-86219-928-0), Kassel, Germany (2015)
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Bittner, Eva ; Ebel, Philipp ; Habicht, Hagen ; Leimeister, Jan Marco ; Möslein, Kathrin ; Plieth, Hanna: In TANDEMs zu Innovationen - Förderung der Zusammenarbeit in altersgemischten Teams. In: Klatt, R. (ed.) Praeview - Zeitschrift für innovative Arbeitsgestaltung und Prävention vol. 6 (2015), pp. 16–17
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Kibanov, Mark:Mining Groups Stability in Ubiquitous and Social Environments: Communities, Classes and Clusters.. In: Cheng, X. ; Li, H. ; Gabrilovich, E. ; Tang, J. (eds.): Proceedings of the Eighth ACM International Conference on Web Search and Data Mining, WSDM ’15. Shanghai, China : ACM, 2015 — ISBN 978-1-4503-3317-7, pp. 441–446
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Ubiquitous Computing is an emerging research area of computer science. Similarly, social network analysis and mining became very important in the last years. We aim to combine these two research areas to explore the nature of processes happening around users. The presented research focuses on exploring and analyzing different groups of persons or entities (communities, clusters and classes), their stability and semantics. An example of ubiquitous social data are social networks captured during scientific conferences using face-to-face RFID proximity tags. Another example of ubiquitous data is crowd-generated environmental sensor data. In this paper we generalize various problems connected to these and further datasets and consider them as a task for measuring group stability. Group stability can be used to improve state-of-the-art methods to analyze data. We also aim to improve the performance of different data mining algorithms, eg. by better handling of data with a skewed density distribution. We describe significant results some experiments that show how the presented approach can be applied and discuss the planned experiments.
Bittner, Eva Alice Christiane ; Leimeister, Jan Marco:Das TANDEM-Konzept zur Unterstützung des Wissenstransfers in altersdiversen Arbeitsgruppen.. In: Jeschke, S. ; Richert, A. ; Hees, F. ; Jooß, C. (eds.): Exploring Demographics - Transdisziplinäre Perspektiven zur Innovationsfähigkeit im demografischen Wandel. Wiesbaden, Germany : Springer Spektrum, 2015, pp. 371–382
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Bitzer, Philipp: Design Principles for the Productive Delivery of Blended Learning Services. In: Research on IT / Service / Innovation / Collaboration vol. 8, Kassel University Press (978-3-86219-940-2), Kassel, Germany (2015)
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Kerkhoff, Mathias ; Kromat, Theresa ; Peters, Christoph:Geschäftsmodelle in der Telemedizin - Ein Ordnungsrahmen.. In: Working Paper Series, Nr. 8. Kassel, Germany, 2015
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Atzmueller, Martin:Subgroup and Community Analytics on Attributed Graphs.. In: Proc. International Workshop on Social Network Analysis using Formal Concept Analysis (SNAFCA-2015) : CEUR-WS, 2015
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Atzmueller, Martin: Subgroup Discovery - Advanced Review. In: WIREs: Data Mining and Knowledge Discovery vol. 5 (2015), Nr. 1, pp. 35–49
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Subgroup discovery is a broadly applicable descriptive data mining technique for identifying interesting subgroups according to some property of interest. This article summarizes fundamentals of subgroup discovery, before it reviews algorithms and further advanced methodological issues. In addition, we briefly discuss tools and applications of subgroup discovery approaches. In that context, we also discuss experiences and lessons learned and outline future directions in order to show the advantages and benefits of subgroup discovery.
Karaboga, Murat ; Matzner, Tobias ; Morlok, Tina ; Nebel, Maxi ; Pittroff, Fabian ; Ochs, Carsten ; von Pape, Thilo ; Pörschke, Julia V. ; et al. ; Privatheit, F. (ed.):Das versteckte Internet.
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Kibanov, Mark ; Atzmueller, Martin ; Illig, Jens ; Scholz, Christoph ; Barrat, Alain ; Cattuto, Ciro ; Stumme, Gerd:Is Web Content a Good Proxy for Real-Life Interaction? A Case Study Considering Online and Offline Interactions of Computer Scientists.. In: Proc. ASONAM. Boston, MA, USA : IEEE Press, 2015
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Lamla, Jörn: Politischer Konsum und (Post-)Demokratie - ein Debattenbeitrag. In: Forschungsjournal Soziale Bewegungen vol. 28 (2015), Nr. 2, pp. 28–36
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Knoell, Daniel ; Rieder, Constantin ; Atzmueller, Martin ; Scherer, Klaus Peter:Towards Generating Test Ontologies using Subgroup Discovery.. In: Proc. LWA 2015 (WM Special Track), 2015
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Saur, Daniel ; Geihs, Kurt: IMPERA: Integrated Mission Planning for Multi-Robot Systems. In: Robotics vol. 4 (2015), Nr. 4, p. 435
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This paper presents the results of the project IMPERA (Integrated Mission Planning for Distributed Robot Systems). The goal of IMPERA was to realize an extraterrestrial exploration scenario using a heterogeneous multi-robot system. The main challenge was the development of a multi-robot planning and plan execution architecture. The robot team consists of three heterogeneous robots, which have to explore an unknown environment and collect lunar drill samples. The team activities are described using the language ALICA (A Language for Interactive Agents). Furthermore, we use the mission planning system pRoPhEt MAS (Reactive Planning Engine for Multi-Agent Systems) to provide an intuitive interface to generate team activities. Therefore, we define the basic skills of our team with ALICA and define the desired goal states by using a logic description. Based on the skills, pRoPhEt MAS creates a valid ALICA plan, which will be executed by the team. The paper describes the basic components for communication, coordinated exploration, perception and object transportation. Finally, we evaluate the planning engine pRoPhEt MAS in the IMPERA scenario. In addition, we present further evaluation of pRoPhEt MAS in more dynamic environments.
Sollner, M.: Understanding Trust in Information Systems - The Impact of Trust in the System and in the Provider. In: Academy of Management Proceedings vol. 2015 (2015), pp. 10159–10159
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To provide value for businesses, information systems (IS) must be adopted and used by their intended users, no matter whether a company focuses on selling IS on the market (external users) or whether IS are used to keep the business going (internal users). One of the most important factors driving the adoption and use is trust. The goal of this paper is to provide a first evaluation of a conceptual piece claiming a) that users distinguish between their trust in an IS and the provider of this IS and b) that both kinds of trust are important for the success sustainable success of IS providers, and thus should be studied simultaneously. To evaluate the claims, a research model is developed and evaluated using data of 234 students during the introduction of a new IS at an university. The results provide empirical support for both claims, since the correlation between the two trust constructs is low, and the nomological networks are different. Regarding the importance of both constructs, trust in the IS is found to have an important impact of the use of the IS, whereas trust in the provider is a major driver of the users’ loyalty.
Sarasua, Christina ; Simperl, Elena ; Noy, Natasha ; Bernstein, Abraham ; Leimeister, Jan Marco: Crowdsourcing and the Semantic Web: A Research Manifesto. In: Human Computation vol. 2 (2015), Nr. 1, pp. 3–17
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Rudolph, Stefan ; Tomforde, Sven ; Sick, Bernhard ; Heck, Henner ; Wacker, Arno ; Haehner, Joerg:An Online Influence Detection Algorithm for Organic Computing Systems.. In: Architecture of Computing Systems. Proceedings, ARCS 2015-The 28th International Conference on Architecture of Computing Systems – ARCS Workshops : VDE Verlag, 2015, pp. 1–8
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In recent years, technical systems have become substantially more complex due to an increasing number of subsystems, the interactions between them, and the mutual influence on each other. Often, even today's systems are no longer manageable by humans and this trend is assumed to intensify rapidly. Therefore, the Organic Computing initiative develops techniques in order to put these systems on a self-organized and self-adaptive level. In this work, we provide a novel method for the detection of mutual influences in Organic Computing systems through the adaption of stochastic dependency measures. We depict how the quantification and detection of such influences take place and verify the appropriate function through simulations of a typical Organic Computing system.
Sîrbu, Alina ; Becker, Martin ; Caminiti, Saverio ; De Baets, Bernard ; Elen, Bart ; Francis, Louise ; Gravino, Pietro ; Hotho, Andreas ; et al.: Participatory Patterns in an International Air Quality Monitoring Initiative. In: PLOS ONE vol. 10, Public Library of Science (2015), Nr. 8, pp. 1–19
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The issue of sustainability is at the top of the political and societal agenda, being considered of extreme importance and urgency. Human individual action impacts the environment both locally (e.g., local air/water quality, noise disturbance) and globally (e.g., climate change, resource use). Urban environments represent a crucial example, with an increasing realization that the most effective way of producing a change is involving the citizens themselves in monitoring campaigns (a citizen science bottom-up approach). This is possible by developing novel technologies and IT infrastructures enabling large citizen participation. Here, in the wider framework of one of the first such projects, we show results from an international competition where citizens were involved in mobile air pollution monitoring using low cost sensing devices, combined with a web-based game to monitor perceived levels of pollution. Measures of shift in perceptions over the course of the campaign are provided, together with insights into participatory patterns emerging from this study. Interesting effects related to inertia and to direct involvement in measurement activities rather than indirect information exposure are also highlighted, indicating that direct involvement can enhance learning and environmental awareness. In the future, this could result in better adoption of policies towards decreasing pollution.
Anderson, Christoph ; Suarez, Isabel ; Xu, Yaqian ; David, Klaus:An Ontology-Based Reasoning Framework for Context-Aware Applications.. In: Christiansen, H. ; Stojanovic, I. ; Papadopoulos, G. A. (eds.): Proceedings of the 9th International and Interdisciplinary Conference on Modeling and Using Context, CONTEXT 2015, Lecture Notes in Computer Science. vol. 9405. Lanarca, Cyprus : Springer International Publishing, 2015, pp. 471–476
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Context-aware applications process context information to support users in their daily tasks and routines. These applications can adapt their functionalities by aggregating context information through machine-learning and data processing algorithms, supporting users with recommendations or services based on their current needs. In the last years, smartphones have been used in the field of context-awareness due to their embedded sensors and various communication interfaces such as Bluetooth, WiFi, NFC or cellular. However, building context-aware applications for smartphones can be a challenging and time-consuming task. In this paper, we describe an ontology-based reasoning framework to create context-aware applications. The framework is based on an ontology as well as micro-services to aggregate, process and represent context information.
Söllner, Matthias:Understanding Trust in Information Systems –The Impact of Trust in the System and in the Provider.. In: 75th Annual Meeting of the Academy of Management. Vancouver, BC, Kanada, 2015
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Roßnagel, Alexander ; Nebel, Maxi ; Richter, Philipp: Was bleibt vom europäischen Datenschutzrecht? Überlegungen zum Ratsentwurf der DS-GVO. In: Zeitschrift für Datenschutz (2015), Nr. 10, pp. 455–460
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Kopal, Nils ; Kieselmann, Olga ; Wacker, Arno:Simulating Cheated-Results-Dissemination for Volunteer Computing.. In: 1st International Workshop on Signal Processing for Secure Communications (SP4SC-2015), held in conjunction with 3rd International Conference on Future Internet of Things and Cloud (FiCloud 2015). Rome, Italy : IEEE, 2015
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In this paper, we present three novel distribution algorithms (Epoch Distribution Algorithm, Sliding Window Distribution Algorithm, and Extended Epoch Distribution Algorithm) in unstructured peer-to-peer networks for volunteer computing. In volunteer computing, the overall job is split into several sub jobs. These sub jobs are given to the (untrusted) PCs of volunteers. We show the performance of our algorithms with respect to double computed sub jobs. Furthermore, we present our idea of using cellular automata to simulate, evaluate, and visualize the cheated sub job result dissemination. Finally, we estimate and visualize the cheat detection behaviour of our cheat detection algorithm for volunteer computing.
Schmidt, Andreas ; Atzmueller, Martin ; Stumme, Gerd:The FEE Project: Introduction and First Insights.. In: Proc. UIS Workshop, 2015
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Schmidt, L.: Technologien und Methoden für die nutzerfreundliche Produkt- und Arbeitsplatzgestaltung. In: UNIKIMS-Vortragsreihe, Vortrag, UNIKIMS-Vortragsreihe, Vortrag.. Kassel (2015)
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Der Vortrag widmet sich der systematisch-ingenieurmäßigen Entwicklung gebrauchstauglicher, d. h. effektiv, effizient und zufriedenstellend benutzbarer Produkte, sowie der Gestaltung effizienter und ergonomischer Arbeitsplätze. Dazu werden Technologien und Methoden vorgestellt, mit denen diese Qualitätseigenschaften zielgerichtet verfolgt und überprüft werden können, und anhand von Beispielen aus verschiedenen Projekten illustriert.
Roßnagel, Alexander ; Jandt, Silke ; Kartal-Aydemir, Aliye ; Schenk, M. ; Gölz, H. ; Niemann, J. (eds.):Rechtliche Beurteilung von Scripted Reality-Formaten. vol. 52. Düsseldorf, 2015
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Kusber, Rico ; Braukmann, Johanna ; David, Klaus:Nutzung des Anwesenheitsstatus zur Verbesserung der Work-Life-Balance.. In: Dormann, C. ; Haun, V. C. ; Rigotti, T. (eds.): Menschen, Medien, Möglichkeiten: 9. Tagung der Fachgruppe Arbeits-, Organisations- und Wirtschaftspsychologie der Deutschen Gesellschaft für Psychologie. Mainz, Germany : Pabst Science Publishers, 2015, p. 194
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Knieling, J. ; Roßnagel, A.:Welche Governance brauchen Städte und Regionen für die Anpassung an den Klimawandel? Fragestellungen und Zugänge aus der Forschungsinitiative „KLIMZUG – Klimawandel in Regionen zukunftsfähig gestalten“ – Einleitung.. In: Knieliing, J. ; Roßnagel, A. (eds.): Governance der Klimaanpassung. Akteure, Organisation und Instrumente für Stadt und Region. vol. 6 : oekom, 2015, pp. 9–28
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Atzmueller, Martin ; Kibanov, Mark ; Hayat, Naveed ; Trojahn, Matthias ; Kroll, Dennis:Adaptive Class Association Rule Mining for Human Activity Recognition.. In: Proceedings of the International Workshop on Mining Ubiquitous and Social Environments (MUSE2015). Porto, Portugal, 2015
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Atzmueller, Martin ; Kibanov, Mark ; Scholz, Christoph ; Mueller, Juergen ; Stumme, Gerd:Conferator – A Ubiquitous System for Enhancing Social Networking at Conferences.. In: Proc. UIS Workshop, 2015
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Knieling, J. ; Roßnagel, A. ; Schlipf, S.:Visionäre Strategien, lernende Netzwerke, kreative Regelungs-Arrangements: Erkenntnisse zur Governance der Klimaanpassung aus der Forschungsinitiative KLIMZUG.. In: Knieling, J. ; Roßnagel, A. (eds.): Governance der Klimaanpassung. Akteure, Organisation und Instrumente für Stadt und Region. vol. 6 : oekom, 2015, pp. 419–434
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Atzmueller, M. ; Lemmerich, F. (eds.):Proceedings of the 2015 International Workshop on Mining Ubiquitous and Social Environments (MUSE 2015). vol. 1521. Porto, Portugal : CEUR-WS, 2015
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Atzmueller, Martin ; Mueller, Juergen ; Becker, Martin:Exploratory Subgroup Analytics on Ubiquitous Data.. In: Mining, Modeling and Recommending ’Things’ in Social Media, LNAI. vol. 8940. Heidelberg, Germany : Springer Verlag, 2015
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Atzmueller, M. ; Chin, A. ; Scholz, C. ; Trattner, C. (eds.):Mining, Modeling and Recommending ’Things’ in Social Media, LNCS. vol. 8940. Heidelberg, Germany : Springer Verlag, 2015 — ISBN 978-3-642-23598-6
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Schulz, Thomas:Verantwortlichkeit bei autonom agierenden Systemen – Fortentwicklung des Rechts und Gestaltung der Technik. Baden-Baden : Nomos Verlag, 2015
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Schulz, Moritz ; Haas, Philipp ; Schulthess, Karin ; Blohm, Ivo ; Leimeister, Jan Marco:How Idea Creativity and Hedonic Value Influence Project Success in Crowdfunding.. In: Wirtschaftsinformatik (WI). Osnabrück, Germany, 2015, pp. 948–962
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Seeger, M. ; Stein, T. ; Borys, B.-B. ; Schmidt, L.:Die Berührungsdauer eines Button-Klicks bei stationären Touchscreens.. In: Diefenbach, S. ; Henze, N. ; Pielot, M. (eds.): Mensch und Computer 2015 - Tagungsband (Stuttgart 2015). Berlin : De Gruyter Oldenbourg, 2015, pp. 243–252
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Touchscreens werden zunehmend in alltäglichen Geräten eingesetzt, wobei das Gefühl konventioneller Tasten verloren geht. Eine künstlich generierte haptische Rückmeldung kann nur während der Zeit vermittelt werden, in der ein Finger auf der Touchscreen-Oberfläche verweilt. Mit Hilfe von 53 Versuchsteilnehmern und über 5600 einzelnen Button-Klicks wurde die Berührungsdauer für unterschiedliche Einflussfaktoren von stationären Touchscreens (Neigung, Buttongröße sowie Nutzerposition) ermittelt. Die Ergebnisse zeigen eine durchschnittliche Berührungsdauer von 169 ms sowie eine minimale Berührungsdauer von 80 ms auf einer Touchscreen-Oberfläche. Die Berührungsdauer ist sowohl von der Neigung eines Touchscreens als auch von der Buttongröße abhängig und liefert Erkenntnisse für die Gestaltung einer wahrnehmbaren haptischen Rückmeldung von stationären Touchscreens.
Kipp, Philipp: Engineering Tool Supported Collaboration Processes for Web-based Platforms. In: Research on IT / Service / Innovation / Collaboration vol. 9, Kassel University Press (978-3-86219-968-6), Kassel, Germany (2015)
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Kusber, Rico ; Memon, Abdul Qudoos ; Kroll, Dennis ; David, Klaus:Direction Detection of Users Independent of Smartphone Orientations.. In: 2015 IEEE 82nd Vehicular Technology Conference (VTC Fall). Boston, MA, USA : IEEE, 2015 — ISBN 978-1-4799-8091-8
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Smartphone sensors deliver useful information for applications such as indoor and outdoor navigation. An integral part of such applications is the detection of the orientation and movement direction of a smartphone user. Until now, movement direction detection using smartphones typically relies on GPS, which is often not available indoors. Alternatively, other approaches use sensors such as accelerometer and compass instead. These approaches rely on carrying the smartphone in a predefined orientation, or knowing the orientation of the smartphone in relation to the orientation of the user. In this paper, we present an approach to detecting the orientation and movement direction of users carrying smartphones inside the trouser pocket. This approach first determines the orientation of the smartphone's top using compass and orientation sensor. Second, this approach determines the orientation of the smartphone's screen, and the user's movement direction by observing compass and accelerometer during at least two steps the user takes. After these two steps, the approach is capable of continuously aligning smartphone orientation and user orientation. With our approach, the user is free to change direction, movement speed, or to stop moving at all. The smartphone can be placed in the trouser pocket arbitrarily. And the smartphone is free to wobble in the trouser pocket. How well our approach works, is investigated based on experimental measurements.
Schmidt, L.: Altersgerechte Assistenzsysteme - Vorstellung der TAAndem-Weiterbildung für Berufstätige im sozialen oder technischen Bereich. In: Kasseler Gesundheitstage, Vortrag, Kasseler Gesundheitstage, Vortrag.. Kassel (2015)
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Baraki, Harun ; Geihs, Kurt ; Voigtmann, Christian ; Hoffmann, Axel ; Kniewel, Romy ; Macek, Björn-Elmar ; Zirfas, Julia:Interdisciplinary Design Patterns for Socially Aware Computing.. In: The 37th International Conference on Software Engineering (ICSE), Software Engineering in Society (SEIS) track : ACM/IEEE, 2015
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The success of software applications that collect and process personal data does not only depend on technical aspects, but is also linked to social compatibility and user acceptance. It requires experts from different disciplines to ensure legal compliance, to foster the users' trust, to enhance the usability of the application and to finally realize the application. Multidisciplinary requirements have to be formulated, interwoven and implemented. We advocate the use of interdisciplinary design patterns that capture the design know-how of typical, recurring features in socially aware applications with particular concern for socio-technical requirements. The proposed patterns address interdisciplinary concerns in a tightly interwoven manner and are intended to facilitate the development of accepted and acceptable applications that in particular deal with sensitive user context information.
Köhler, Benjamin ; Söllner, Matthias:Digitale Geschäftsmodelle im Profisport - Eine Ist-Analyse am Beispiel der National Football League.. In: Student Consortium der WI 2015. Osnabrück, Germany, 2015
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Benedetto, Francesco ; Giunta, Gaetano ; Liguori, Angelo ; Wacker, Arno:A Novel Method for Securing Critical Infrastructures by Detecting Hidden Flows of Data.. In: Communications and Network Security (CNS), 2015 IEEE Conference on : IEEE, 2015, pp. 648–654
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This work introduces a novel method for securing critical infrastructures. We propose an innovative hypothesis test for intrusion detection in data communications. In particular, we detect the presence or absence of a covert (i.e. hidden) timing channel. We devised a new testing procedure, namely the Weibullness test, that statistically measures how much the series under investigation (inter-arrival times of the received packets) fits Weibull vs. non-Weibull models. This is equivalent to differentiating between the cases of legitimate and covert data communications. The achieved results show the robustness of this innovative test versus the conventional shape and regularity tests, even in presence of short-lived covert communications for intrusion detection in data communications.
Kniewel, R. ; Radziwill, M. ; Schmidt, L.:Konflikte und Potentiale informationstechnisch-assistierter Freizeitmobilität.. In: Kassel, I. für V. der U. (ed.): Nahverkehrs-Tage 2015 - Nahverkehr und Freizeit: Neue Kunden durch Innovative Konzepte gewinnen (Kassel 2015), Schriftenreihe Verkehr. Kassel : Kassel University Press, 2015, pp. 65–84
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Dieser Beitrag beschreibt Ergebnisse aus dem nutzerzentrierten und iterativen Entwicklungsprozess einer mobilen Applikation, zur Unterstützung von Freizeitmobilität. Es werden die dabei identifizierten Konflikte vorgestellt, die aus der Verknüpfung von mobilitäts- sowie freizeitbezogenen Anforderungen seitens der Nutzer, den Eigenschaften der Zielgruppe mit einem hohen Anteil an älteren Personen sowie der Charakteristik des mobilen Nutzungskontexts resultieren. Auch werden auf Basis der Untersuchungen potentielle Lösungsansätze formuliert.
Kieselmann, Olga ; Kopal, Nils ; Wacker, Arno: "Löschen" im Internet. Ein neuer Ansatz für die technische Unterstützung des Rechts auf Löschen. In: Datenschutz und Datensicherheit (DuD) (2015), Nr. 1/2015, pp. 31–36
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Spätestens seit der Veröffentlichung des Entwurfs für die EU-weite Datenschutzregelung ist ausgiebig diskutiert worden, dass die im Artikel 17 beschriebenen Regelungen für das Löschen, insbesondere die Pflicht, Dritte über die gewünschte Löschung zu informieren, aufgrund der fehlenden technischen Lösung in der Praxis nicht umsetzbar sind. Seit Mai 2014 hat die öffentliche Diskussion eine neue Wendung genommen, als Google gerichtlich verurteilt wurde, auf Antrag bestimmte Links zu löschen. Verallgemeinert kann gesagt werden, dass es an Kritik an dem Artikel 17 wegen der Schwierigkeit, ihn in der Praxis zu realisieren, nicht mangelt. Es mangelt jedoch an konkreten Lösungsvorschlägen für die technische Umsetzung, sodass Dienstanbieter ein Werkzeug zur Verfügung hätten, das Gesetz umzusetzen. In diesem Aufsatz wird ein solches System vorgestellt, welches sowohl den Internet-Nutzern als auch den Dienstanbietern ein Werkzeug zur Unterstützung des Gesetzes zur Verfügung stellt.
Kieselmann, Olga ; Kopal, Nils ; Wacker, Arno:A Novel Approach to Data Revocation on the Internet.. In: 10th DPM International Workshop on Data Privacy Management (DPM 2015), co-located with 20th European Symposium on Research in Computer Security (ESORICS 2015). Vienna, Austria, 2015, pp. 134–149
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After publishing data on the Internet, the data publisher loses control over it. However, there are several situations where it is desirable to remove published information. To support this, the European Union proposed the General Data Protection Regulation (GDPR) which states that providers must remove the data when the corresponding owner requests it. However, the data might already have been copied by third parties. Therefore, Article 17 of the GDPR includes the regulation that the provider must also inform all third parties about the users request. Hence, the providers would need to track every access, which is hard to achieve. This technical infeasibility is a gap between the legislation and the current technical possibilities. To close this gap, we propose a novel service which gives the data owner the possibility to inform simultaneously all providers about her removal request.
Schmidt, L.: Neue Perspektiven: Smarte Technologien für die Informationsvisualisierung. In: Technik zum Menschen bringen : 2. BMBF-Zukunftskongress Demografie, eingeladener Vortrag, Technik zum Menschen bringen : 2. BMBF-Zukunftskongress Demografie, eingeladener Vortrag.. Berlin (2015)
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Welche Möglichkeiten werden Visualisierungstechnologien eröffnen, bei denen Informationen nicht von einem separaten Display, sondern im direkten Kontext mit der realen Umgebung und mit dieser verbunden wahrgenommen werden können? Der Vortrag beschreibt Prognosen für die technische Entwicklung im Bereich Augmented Reality und beleuchtet, welche Konsequenzen dies für den Alltag in der digitalen, vernetzten Gesellschaft haben könnte und welche Forschungsfragen im Bezug auf die Mensch-Technik-Interaktion daraus abgeleitet werden können.
Schmidt, L.: Warum Technik allein nicht genügt: AAL-Forschung und Qualifizierung für die Praxis. In: 2. Nordhessischer Fachtag zum Thema Altersgerechte Assistenzsysteme, eingeladener Vortrag, 2. Nordhessischer Fachtag zum Thema Altersgerechte Assistenzsysteme, eingeladener Vortrag.. Kassel (2015)
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Schmidt, L.: Altersgerechte Assistenzsysteme - Aktuelle Entwicklungen und Weiterbildungsmöglichkeiten. In: Handwerkskammer Kassel, Vortrag, Handwerkskammer Kassel, Vortrag.. Kassel (2015)
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Silka, Konstantin ; Zogaj, Shkodran ; Bretschneider, Ulrich:Wie sollte die Crowd gesteuert werden? Identifizierung geeigneter Steuerungs- und Kontrollmechanismen für Crowdsourcing-Intermediäre.. In: Working Paper Series, Nr. 11. Kassel, Germany, 2015
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Schmidt, L.: Auswirkungen von Industrie 4.0 auf die Arbeit. In: Technoform Group, eingeladener Vortrag, Technoform Group, eingeladener Vortrag.. Kassel (2015)
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Roßnagel, Alexander ; Nebel, Maxi: (Verlorene) Selbstbestimmung im Datenmeer – Privatheit im Zeitalter von Big Data. In: Datenschutz und Datensicherheit (2015), Nr. 7, pp. 455–459
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Lamla, Jörn:Was ist und zu welchem Ende untersuchen wir die Verbraucherdemokratie?. In: Bala, C. ; Müller, K. (eds.): Abschied vom Otto Normalverbraucher: Moderne Verbraucherforschung: Leitbilder, Informationen, Demokratie. Essen : Klartext, 2015, pp. 169–185
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Atzmueller, Martin ; Doerfel, Stephan ; Mitzlaff, Folke:Fast Description-Oriented Community Detection using Subgroup Discovery (Extended Abstract, Resubmission).. In: Proc. LWA 2015 (KDML Special Track), 2015
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Roßnagel, Alexander ; Hornung, Gerrit:Die Nutzung der elektronischen Gesundheitskarte und der Kartenversichertennummer im Forschungskontext.. In: Schneider, U. K. (ed.): Sekundärnutzung klinischer Daten - Rechtliche Rahmenbedingungen. vol. 12. Berlin : Schriftenreihe der TMF – Technologie- und Methodenplattform für die vernetzte medizinische Forschung e.V., 2015, pp. 367–410
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Braukmann, Johanna ; Schmitt, Antje ; Duranova, Lenka ; Ohly, Sandra:The Effects of Technology-Related Events on Positive Affect, Detachment from Work and Sleep.. In: Opening Governance: Academy of Management 2015 Annual Meeting, Vancouver, Canada, 2015
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Boos, Carina: Datenweitergabe an und durch Spieleanbieter auf Facebook – Zugleich Anmerkung zu LG Berlin, Urt. v. 28.10.2014, Az. 16 O 60/13. In: Verbraucher und Recht vol. 30 (2015), Nr. 3, pp. 92–97, 101
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Braukmann, Johanna:Is Information and Communication Technology (ICT) a demand or a resource? - Development of an ICT Events Taxonomy.. In: Respectful and effective leadership - managing people and organizations in turbulent times: The 17th congress of the European Association of Work and Organizational Psychology Oslo, Norway, 2015
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Lasry, George ; Kopal, Nils ; Wacker, Arno: Automated Known-Plaintext Cryptanalysis of Short Hagelin M-209 Messages. In: Cryptologia (2015), Nr. ahead-of-print, pp. 1–21
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The Hagelin M-209 portable encryption device was used by the US Army in World War II and the Korean War, as well as by other armies and in embassy settings. In this paper, we present a fully automated computerized known-plaintext attack, based on hillclimbing and a novel fitness function - the Aggregate Displacement Error. In our performance evaluation we show that we are able to recover key settings for messages as short as 50 characters. To validate our results, we solved several publicly available challenge messages, including a message with only 40 letters.
Lasry, George ; Kopal, NIls ; Wacker, Arno: Ciphertext-Only Cryptanalysis of Hagelin M-209 Pins and Lugs. In: Cryptologia (2015), Nr. ahead-of-print, pp. 1–36
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The Hagelin M-209 was a mechanical encryption device used by the U.S. Army during World War II and the Korean War, as well as by other armies and in embassy settings. In this article, the authors present a four-stage hillclimbing algorithm for recovering the full key settings from ciphertext only. The first two stages are based on a divide-and-conquer approach developed by Geoff Sullivan. In the current performance evaluation, the authors show that their method is able to recover key settings from messages as short as 750 letters, compared to 2,000 – 2,500 letters with prior methods. With this method, they solved several M-209 ciphertext-only challenges, including the final exercises in W. Barker’s 1977 book, Cryptanalysis of the Hagelin Cryptograph.
Laser, Stefan ; Lamla, Jörn:Demokratischer Experimentalismus in transnationalen Wertschöpfungskollektiven. Über einige Herausforderungen des ethischen Konsums und den Fall Elektroschrott.. In: Lessenich, S. (ed.): Routinen der Krise – Krise der Routinen. Verhandlungen des 37. Kongresses der Deutschen Gesellschaft für Soziologie in Trier 2014. vol. 37. Trier, 2015, pp. 1–11
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Roßnagel, Alexander ; Geminn, Christian: „Privatheit“ und „Privatsphäre“ aus der Perspektive des Rechts – ein Überblick. In: Roßnagel, A. (ed.) Juristenzeitung vol. 70 (2015), Nr. 14, pp. 703–708
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Braukmann, Johanna ; Schmitt, Antje ; Ďuranová, Lenka ; Ohly, Sandra:Wie belastend ist Erreichbarkeit am Feierabend? Der Einfluss des organisationalen Work-Family-Klimas.. In: Menschen Medien Möglichkeiten: 9. Tagung der Fachgruppe Arbeits-, Organisations- und Wirtschaftspsychologie (AOW) der Deutschen Gesellschaft für Psychologie (DGPs) in Mainz, 24.-26.09.2015, 2015
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Roßnagel, Alexander ; Geminn, Christian:A Systematic Approach to the Legal Evaluation of Security Measures in Public Transportation.. In: Gutwirth, S. ; Leenes, R. ; de Hert, P. (eds.): Reforming European Data Protection Law. Dordrecht : Springer, 2015, pp. 63–90
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Boos, Carina ; press, kassel university (ed.):Verbraucher- und Datenschutz bei Online-Versanddiensten, Automatisierte Einschätzung der Vertrauenswürdigkeit durch ein Browser-Add-on. vol. 1. Kassel : kassel university press, 2015
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Johannes, P.C.: Elektronische Formulare im Verwaltungsverfahren - Neue Form des Schriftformersatzes. In: Multimedia und Recht (MMR) (2015), Nr. 11, pp. 694–700
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Johannes, P.C.: Voraussetzungen für die elektronische Akte. In: Städte- und Gemeinderat (2015), Nr. 4, pp. 13–14
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Boos, Carina ; Roßnagel, Alexander: Nutzerunterstützung im Online-Versandhandel - Automatisierte Einschätzung der Vertrauenswürdigkeit durch ein Browser-Add-on. In: Multimedia und Recht (2015), p. 215
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2014[ to top ]

Schmidt, L. ; Hegenberg, J. ; Borys, B.-B. ; Kniewel, R.:Gestaltungsempfehlungen für smarte Technologien: Haptisches Feedback bei Touchscreens, Datenbrillen und 3-D-Gesteninteraktion.. In: Automatisierungstechnik, V.-G. M.- und (ed.): Useware 2014: Interaktionen mit großen Datenmengen und unscharfen Analyseergebnissen (Heilbronn 2014), VDI-Berichte. Düsseldorf : VDI-Verlag, 2014, pp. 11–31
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Der Technologietrend zu tragbaren, stets mit dem Internet verbundenen Geräten, die den Menschen mit vielfältiger Sensorik und Aktorik unterstützen sollen, geht gleichzeitig einher mit innovativen Möglichkeiten der Mensch-Maschine-Interaktion. Um eine gebrauchs¬taugliche Nutzung dieser smarten Technologien zu gewährleisten, sind dafür entsprechende Gestaltungsempfehlungen erforderlich. Dieser Beitrag beschreibt den aktuellen Stand der Lösungsansätze unter Berücksichtigung menschlicher Eigenschaften sowie technischer Potenziale, fasst vorhandene Gestaltungsempfehlungen zusammen und macht den Forschungsbedarf deutlich. Dazu werden Gestaltungsempfehlungen für haptisches Feedback bei Touchscreens, für die Visualisierung mit Datenbrillen und für die 3-D-Gesteninteraktion betrachtet und gleichzeitig ein Einblick in verschiedene Forschungsprojekte des Fachgebiets gegeben.
Kniewel, R. ; Radziwill, M. ; Evers, C. ; Schmidt, L.:Benutzeranforderungen an die Benachrichtigungsform von Informations- und Mobilitätsdiensten in kontextsensitiven, adaptiven Smartphone-Applikationen.. In: Automatisierungstechnik, V.-G. M.- und (ed.): Useware 2014: Interaktionen mit großen Datenmengen und unscharfen Analyseergebnissen (Heilbronn 2014), VDI-Berichte. Düsseldorf : VDI-Verlag, 2014, pp. 121–131
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Kontextsensitive, adaptive Smartphone-Applikationen sind dazu in der Lage, auf Basis von Sensordaten die aktuelle Situation des Nutzers zu berücksichtigen und sich dynamisch an Kontextänderungen anzupassen um den Nutzer immer bestmöglich bei seinen Aufgaben zu unterstützen. Durch Benachrichtigungen begleitete Adaptionsvorgänge können eine Möglichkeit sein, Dienste kontextsensitiver Smartphone-Applikationen gebrauchstauglich und akzeptiert einzubinden. Aus dem Gestaltungsrahmen für Benachrichtigungen, der durch die Prinzipien Transparenz und Steuerbarkeit aufgespannt wird, wurden relevante Varianten ausgewählt und im Rahmen einer szenario-basierten Studie 52 Probanden präsentiert. Die Probanden sollten erläutern, welche Variante sie für welchen Dienst im zuvor erlebten Evaluationsszenario präferieren würden. Die Auswertung der Erläuterungen nach Maßgabe der Grounded Theory umfasst 975 Einzelaussagen. Es ergeben sich mitunter eindeutige Benutzeranforderungen an einen Navigationsdienst zum pünktlichen Navigationsbeginn, einen Innenraumnavigationsdienst zur Fortführung der Navigationsaufgabe in einem öffentlichen Gebäude, einen Informationsdienst, der während der Teilnahme an einer öffentlichen Veranstaltung angeboten wird sowie einen Umgebungsdienst ohne Aufgaben-bezug. Einen starken Einfluss auf die Präferenz kann den Aspekten Aufgaben-angemessenheit und Steuerbarkeit der Benachrichtigung zugeschrieben werden. Die Ergebnisse dieses Beitrags sollen die Auswahl einer geeigneten Benachrichtigung für Adaptionsvorgänge kontextsensitiver Smartphone-Applikationen unterstützen.
Becker, Martin ; Hotho, Andreas ; Mueller, Juergen ; Kibanov, Mark ; Atzmueller, Martin ; Stumme, Gerd: Subjective vs. Objective Data: Bridging the Gap (2014)
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Sensor data is objective. But when measuring our environment, measured values are contrasted with our perception, which is always subjective. This makes interpreting sensor measurements difficult for a single person in her personal environment. In this context, the EveryAware projects directly connects the concepts of objective sensor data with subjective impressions and perceptions by providing a collective sensing platform with several client applications allowing to explicitly associate those two data types. The goal is to provide the user with personalized feedback, a characterization of the global as well as her personal environment, and enable her to position her perceptions in this global context. In this poster we summarize the collected data of two EveryAware applications, namely WideNoise for noise measurements and AirProbe for participatory air quality sensing. Basic insights are presented including user activity, learning processes and sensor data to perception correlations. These results provide an outlook on how this data can further be used to understand the connection between sensor data and perceptions.
Kniewel, R. ; Evers, C. ; Schmidt, L. ; Geihs, K.:Designing Usable Adaptations.. In: David, K. ; Geihs, K. ; Leimeister, J. M. ; Roßnagel, A. ; Schmidt, L. ; Stumme, G. ; Wacker, A. (eds.): Socio-technical Design of Ubiquitous Computing Systems. Cham : Springer, 2014, pp. 211–232
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Ubiquitous computing systems are able to adapt their functionality, behaviour, and interface characteristics according to the user’s context. The user’s context is computed by e.g. sensor data, data about the user’s current activity, or the environment. By performing adaptations, these systems attempt to adequately support users in accomplishing their tasks in any situation. However, adaptations that impact the user interface, e.g. by integration of services, may cause usability problems, for example when they disrupt the user in accomplishing a task. There is no established set of guidelines or comprehensive design solutions to overcome potential usability problems in adaptive applications. In this chapter we present our notification-based design approach, which was beneficial to design usable adaptations for the adaptive application Meet-U. We analyse the results of a user study with 52 potential users in which we have evaluated the usability of our notification-based design solutions. We identified suitable design solutions for five different adaptations providing different supportive services in different contexts of use. These services are: navigational services, event services, a device muting service, and an environmental service. We also exposed the general requirement for a task-specific and context-specific design for adaptations.
Schmidt, L. ; Hegenberg, J. ; Cramar, L.: User Studies on Teleoperation of Robots for Plant Inspection. In: Industrial Robot: An International Journal vol. 41 (2014), Nr. 1, pp. 6–14
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Purpose - To avoid harm to humans, environment, and capital goods, hazardous or explosive gases that are possibly escaping from industrial and infrastructure facilities of the gas and oil processing industry have to be detected and located quickly and reliably. Project RoboGasInspector aims at the development and evaluation of a human-robot system that applies autonomous robots equipped with remote gas detection devices to detect and locate gas leaks. This article aims to focus on the usability of telemanipulation in this context. Design/methodology/approach - This paper presents four user studies concerning human-robot interfaces for teleoperation in industrial inspection tasks. Their purpose is to resolve contradictory scientific findings regarding aspects of teleoperation and to verify functionality, usability, and technology acceptance of the designed solution in the actual context of use. Therefore, aspects concerning teleoperation that were separately examined before are evaluated in an integrated way. Considered aspects are influence of media technology on telepresence, simulator sickness and head slaved camera control, usability of different input devices for telemanipulation, and identification of intuitive gestures for teleoperation of mobile robots. Findings - In general, the implemented interaction concepts perform better compared to conventional ones used in contemporary, actually applied robot systems. Otherwise, reasons are analyzed and approaches for further improvements are discussed. Exemplary results are given for each study. Originality/value - The solution combines several technical approaches that are so far separately examined. Each approach is transferred to the innovative domain of industrial inspections and its applicability in this context is verified. New findings give design recommendations for remote workplaces of robot operators.
Schmidt, L. ; Herrmann, R. ; Hegenberg, J. ; Cramar, L.: Evaluation einer 3-D-Gestensteuerung für einen mobilen Serviceroboter. In: Zeitschrift für Arbeitswissenschaft vol. 68 (2014), Nr. 3, pp. 129–134
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Gestensteuerungen wird als einer natürliche Interaktionsform das Potential zugeschrieben, herkömmliche Eingabegeräte in vielen Anwendungsbereichen zu ersetzen. Fortschritte in der technischen Realisierung führen dazu, dass auch im Bereich der Mensch-Roboter-Interaktion 3-D-Gestensteuerungen erste experimentelle Verwendung finden. Gleichzeitig werden allerdings Zweifel an der Gebrauchstauglichkeit von Gestensteuerungen geäußert. In einer Laborstudie wurde eine intuitiv empfundene 3-D-Gestensteuerung mit einer herkömmlichen Steuerung für einen mobilen Serviceroboter verglichen. Im Ergebnis wurde deutlich, dass die Gestensteuerung für die Steuerung eines Manipulatorarms des Roboters vielversprechend, aber für Fahraufgaben des mobilen Serviceroboters weniger gut geeignet ist, und es Bedarf nach Gestaltungsempfehlungen für den Entwurf von 3-D-Gesten und deren ergonomische Bewertung gibt.
Atzmueller, Martin ; Bobek, Szymon ; Kibanov, Mark ; Nalepa, Grzegorz J.:Towards Context Detection in the Ambient Classroom using Wearable Sensors.. In: Proceedings of the 2014 International Smart University Workshop (SmartU 2014), London, UK. London, UK, 2014
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Lasry, George ; Kopal, Nils ; Wacker, Arno: Solving the Double Transposition Challenge with a Divide and Conquer Approach. In: Cryptologia vol. 38 (2014), pp. 197–214
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The double transposition cipher was considered to be one of the most secure types of manual ciphers. It was extensively used in both World Wars and during the Cold War. In 1999, Otto The double transposition cipher was considered to be one of the most secure types of manual ciphers. It was extensively used in both World Wars and during the Cold War. In 1999, Otto Leiberich, the former head of the German federal office for information security, suggested that a double transposition challenge be published with specific parameters designed to ensure its security. Such a challenge was published by Klaus Schmeh in 2007. In November 2013 we solved the challenge using a ciphertext only hill climbing attack. We also solved the challenge using a dictionary attack. In this paper we describe both methods, which are based on a "divide and conquer" approach. We additionally discuss the impact of our solutions with respect to the general security of the double transposition cipher.
König, Immanuel ; Beau, Philipp. ; David, Klaus.:A new context: Screen to face distance.. In: 8th International Symposium on Medical Information and Communication Technology (ISMICT). Florence, Italy : IEEE, 2014, pp. 1–5
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Most would agree: human vision is the most important of the five senses. Tragically many elderly people lose their vision due to incurable diseases which could have been avoided if diagnosed early enough. Fortunately some of these diseases can be diagnosed or at least have their symptoms detected with the use of simple tests. The use of smartphone or tablet applications have become common for these tests, so eye diseases can be detected early and even at home. However, none of the smartphone or tablet applications considers the screen to face distance of a person doing an eye test to be an important parameter for these sorts of tests. In this paper we present an algorithm to derive a new context: the smartphone user's screen to face distance. Our algorithm utilizes the smartphone front camera and an eye detection algorithm. After initializing the algorithm with person specific values, the algorithm continuously measures the eye to eye distance to derive the user's actual screen to face distance. We also present an investigation on the algorithm accuracy and speed, which shows: a smartphone based screen to face distance measurement is possible in the distance range from 19cm to 94cm with a maximum deviation of 2.1cm and at a rate of three distance measurements per second.
Janson, Andreas ; Söllner, Matthias ; Bitzer, Philipp ; Leimeister, Jan Marco:Examining the Effect of Common Method Variance in Technology-mediated Learning Research.. In: First AIS-Journals Joint Author Workshop (Pre-ECIS 14 Workshop). Tel Aviv, Israel, 2014
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Kieselmann, Olga ; Kopal, Nils ; Wacker, Arno:Ranking Cryptographic Algorithms.. In: David, K. ; Geihs, K. ; Leimeister, J. M. ; Roßnagel, A. ; Schmidt, L. ; Stumme, G. ; Wacker, A. (eds.): Socio-technical Design of Ubiquitous Computing Systems. Berlin : Springer, 2014, pp. 151–171
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In many applications of our daily life information security plays a key role. This applies even stronger for ubiquitous computing applications where a multitude of sensors and actuators observe and control our physical environment. When developing such applications a software engineer usually relies on well-known cryptographic mechanisms like encryption or hashing. However, due to the multitude of existing cryptographic algorithms it can be challenging to select an adequate and secure one. A software engineer is not necessarily also an information security expert and, therefore, it is not obvious which one offers enough security. A general method to rank cryptographic algorithms by their strengths would mitigate this problem. With the availability of such a ranking a software engineer can either look up the current ranking of an algorithm or perform the ranking himself to determine the current strength of such an algorithm. In this chapter we present a novel method to rank cryptographic algorithms with respect to their current strengths. We evaluate our method by applying it to existing cryptographic algorithms.
Behrenbruch, K. ; Kieselmann, O. ; Schuldt, M. ; Söllner, M. ; Schmidt, L.:System Evaluation.. In: David, K. ; Geihs, K. ; Leimeister, J. M. ; Roßnagel, A. ; Schmidt, L. ; Stumme, G. ; Wacker, A. (eds.): Socio-technical Design of Ubiquitous Computing Systems. Cham : Springer, 2014, pp. 297–319
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Ubiquitous applications are complex systems, and need to be evaluated with respect to their social compatibility in an encompassing and interdisciplinary approach. Interdisciplinary work bears the challenge of maintaining the strengths and specialities of each discipline while yielding consistent results at the same time. Also, the evaluation should be well-matched with other activities in the process of development. The presented system evaluation is designed to fulfill these goals as part of the VENUS Development Method . The system evaluation brings a development circle to a conclusion, and generates consistent results that facilitate decisions for next steps. The evaluation also yields suggestions for possible, further improvements. System evaluation unites four disciplines: usability engineering , trust engineering , legal compatible technology design , and security analysis . This chapter describes the starting points of each discipline, and derives an interdisciplinary approach which encompasses a concerted operating plan as well as contentual interdisciplinary cooperation. The system evaluation provides joint solutions for empirical work, but also leaves room for disciplinary analyses.
Behrenbruch, K. ; Söllner, M. ; Schuldt, M. ; Schmidt, L.:User Model.. In: David, K. ; Geihs, K. ; Leimeister, J. M. ; Roßnagel, A. ; Schmidt, L. ; Stumme, G. ; Wacker, A. (eds.): Socio-technical Design of Ubiquitous Computing Systems. Cham : Springer, 2014, pp. 59–70
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The acceptance of ubiquitous systems differs between individuals. This chapter presents research results on this topic in the form of a user model that systematically describes the influence of personality factors on the acceptance of Ubiquitous Computing (UC). In addition to the traditional factors of acceptance, trust and the perceived legal certainty are considered in the model. The result connects user characteristics with the determinants of the acceptance for UC. The findings are based on surveys conducted with the application Meet-U . Potentialities for using the results to design acceptable applications are derived.
Gierczak, M. M. ; Bretschneider, U. ; Leimeister, J. M.:Is all that Glitters Gold? Exploring The Effects of Perceived Risk on Backing Behavior in Reward-based Crowdfunding.. In: International Conference on Information Systems (ICIS). Auckland, New Zealand, 2014
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Janson, Andreas ; Peters, Christoph ; Leimeister, Jan Marco:Der Weg zur effizienten Bereitstellung kultursensitiver Dienstleistungen - erste Schritte mittels systematischer Modularisierung.. In: Dienstleistungsmodellierung 2014. Wien, 2014
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Schmidt, L.: Informieren, Navigieren, Buchen - Nutzerfreundlicher Zugriff auf Mobilität von zu Hause und unterwegs. In: FREE-Zwischenkonferenz, Vortrag, FREE-Zwischenkonferenz, Vortrag.. Kassel (2014)
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Atzmueller, Martin ; Behrenbruch, Kay ; Hoffmann, Axel ; Kibanov, Mark ; Macek, Bjoern-Elmar ; Scholz, Christoph ; Skistims, Hendrik ; Söllner, Matthias ; et al.:Socio-technical Design of Ubiquitous Computing Systems.. In: David, K. ; Geihs, K. ; Leimeister, J.-M. ; Roßnagel, A. ; Schmidt, L. ; Stumme, G. ; Wacker, A. (eds.): . Heidelberg, Germany : Springer Verlag, 2014
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Janson, Andreas ; Ernst, Sissy-Josefina ; Lehmann, Katja ; Leimeister, Jan Marco:Creating Awareness and Reflection in a Large-Scale IS Lecture – The Application of a Peer Assessment in a Flipped Classroom Scenario.. In: 4th Workshop on Awareness and Reflection in Technology-Enhanced Learning (ARTEL 2014) to be held in the context of EC-TEL 2014. Graz, Austria, 2014
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Roßnagel, Alexander ; Jandt, Silke ; Geihs, Kurt: Socially Compatible Technology Design. In: David, K. ; Geihs, K. ; Leimeister, J. M. ; Roßnagel, A. ; Schmidt, L. ; Stumme, G. ; Wacker, A. (eds.) (2014), pp. 175–190
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Peters, Christoph:Together They are Strong - The Quest for Service Modularization Parameters.. In: European Conference on Information Systems (ECIS). Tel Aviv, Israel, 2014
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Kibanov, Mark ; Atzmueller, Martin ; Scholz, Christoph ; Stumme, Gerd: Temporal Evolution of Contacts and Communities in Networks of Face-to-Face Human Interactions. In: Science China Information Sciences vol. 57, Science China Press (2014), Nr. 3
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Temporal dynamics of social interaction networks as well as the analysis of communities are key aspects to gain a better understanding of the involved processes, important influence factors, their effects, and their structural implications. In this article, we analyze temporal dynamics of contacts and the evolution of communities in networks of face-to-face proximity. As our application context, we consider four scientific conferences. On a structural level, we focus on static and dynamic properties of the contact graphs. Also, we analyze the resulting community structure using state-of-the-art automatic community detection algorithms. Specifically, we analyze the evolution of contacts and communities over time to consider the stability of the respective communities. Furthermore, we assess different factors which have an influence on the quality of com- munity prediction. Overall, we provide first important insights into the evolution of contacts and communities in face-to-face contact networks.
Bretschneider, Ulrich ; Knaub, Katharina ; Wieck, Enrico:Motivations for Crowdfunding: What Drives the Crowd to Invest in Start-ups?. In: European Conference on Information Systems (ECIS). Tel Aviv, Israel, 2014
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Schmidt, L.: AAL-Weiterbildung im Tandem. In: Fachtagung AAL-Kompetenz im Beruf - Wege in die Zukunft, Vortrag, Fachtagung AAL-Kompetenz im Beruf - Wege in die Zukunft, Vortrag.. Hannover (2014)
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Ebel, Philipp:Collaborative Business Modeling: Design of an IT-Environment that enables the co-creation of a company’s business model.. In: G-Forum. Oldenburg, 2014
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Brenner, Walter ; Karagiannis, Dimitris ; Kolbe, Lutz ; Krüger, Jens ; Lamberti, Herman-Josef ; Leifer, Larry ; Leimeister, Jan Marco ; Österle, Hubert ; et al.: User, Use & Utility Research: Die Gestaltungsperspektive der Wirtschaftsinformatik auf den digitalen Nutzer. In: WIRTSCHAFTSINFORMATIK (2014), Nr. 1, pp. 65–72
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Atzmueller, Martin ; Behrenbruch, Kay ; Hoffmann, Axel ; Kibanov, Mark ; Macek, Bjoern-Elmar ; Scholz, Christoph ; Skistims, Hendrik ; Söllner, Matthias ; et al.:Connect-U: A System for Enhancing Social Networking.. In: David, K. ; Geihs, K. ; Leimeister, J. M. ; Roßnagel, A. ; Schmidt, L. ; Stumme, G. ; Wacker, A. (eds.): Socio-technical Design of Ubiquitous Computing Systems : Springer International Publishing, 2014 — ISBN 978-3-319-05043-0, pp. 261–275
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The application of ubiquitous and social computational systems shows a rapidly increasing trend in our everyday environments: Enhancing social interactions and communication in both online and real-world settings is an important issue in a broad range of application contexts. This chapter describes the development of ubiquitous and social software for enhancing social networking. The Connect-U demonstrator features a class of such applications. In particular, it comprises the Conferator and MyGroup applications for enabling smarter social interactions in the context of conferences and working groups. We describe the applied socio-technical design process, and discuss experiences and lessons learned.
Böhmann Tilo ; Leimeister, Jan Marco ; Möslein Kathrin: Service-Systems-Engineering - Ein zukünftiges Forschungsgebiet der Wirtschaftsinformatik. In: WIRTSCHAFTSINFORMATIK (DOI 10.1007/s11576-014-0406-6) (2014)
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Böhmann Tilo ; Leimeister, Jan Marco ; Möslein Kathrin: Service Systems Engineering - A Field for Future Information Systems Research. In: Business & Information Systems Engineering (BISE) (DOI: 10.1007/s12599-014-0314-8) (2014)
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Ohly, Sandra ; Latour, Alessa: Use of smartphones for work and well-being in the evening: The role of autonomous and controlled motivation.. In: Journal of Personnel Psychology vol. 13 (2014), Nr. 4, pp. 174–183 (DOI:10.1027/1866
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Recent research has revealed that use of smartphones for work in the evening is associated with lower well-being. In this study, based on self-determination theory, we examined the role of autonomous and controlled motivation for well-being in the evening. Hierarchical regression analyses using data from 1,714 working individuals revealed that work-related smartphone usage in the evening was positively related to psychological detachment, but unrelated to recovery and negative affect, and negatively related to positive affect. Autonomous motivation for smartphone usage in the evening was positively related to recovery, psychological detachment, and positive affect. Controlled motivation was significantly related to positive and negative affect in the expected direction. These results indicate that the motivation behind individuals’ smartphone use in the evening matters for their well-being.
Atzmueller, Martin ; Baraki, Harun ; Behrenbruch, Kay ; Comes, Diana ; Evers, Christoph ; Hoffmann, Axel ; Hoffmann, Holger ; Jandt, Silke ; et al. ; Hoffmann, A. ; Niemczyk, S. (eds.):Die VENUS-Entwicklungsmethode: Eine interdisziplinäre Methode für soziotechnische Softwaregestaltung : Research Center for Information System Design (ITeG), University of Kassel, 2014
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Atzmueller, Martin ; Becker, Martin ; Kibanov, Mark ; Scholz, Christoph ; Doerfel, Stephan ; Hotho, Andreas ; Macek, Bjoern-Elmar ; Mitzlaff, Folke ; et al.: Ubicon and its Applications for Ubiquitous Social Computing. In: New Review of Hypermedia and Multimedia vol. 20 (2014), Nr. 1, pp. 53–77
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Peters, C. ; Leimeister, J. M.:Modellierung telemedizinischer Dienstleistungen mit der Blueprint-driven Telemedicine Process Modeling Language.. In: Möller, K. ; Leimeister, J. M. (eds.): Produktivität von Dienstleistungen. Wiesbaden, Germany (DOI: 10.1007/978-3-658-04086-4) : Springer Gabler, 2014, pp. 226–239
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Nebel, M. ; Roßnagel, A.: Beweisführung mittels ersetzend gescannter Dokumente. In: Neue Juristische Wochenschrift (NJW) (2014), pp. 886–891
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Gierczak, M. ; Söllner, M. ; Leimeister, J. M.:Successfully funded! - Welche Geschäftsmodelle machen crowdfinanzierte Cloud-Startups erfolgreich?. In: Mulitkonferenz Wirtschaftsinformatik (MKWI). Paderborn, Germany, 2014
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In den vergangenen Jahren haben Cloud-Anbieter verschiedene Ansätze verfolgt, um die wahrgenommenen Unsicherheiten von Kunden gegenüber Cloud-Lösungen zu verringern und die Akzeptanz dieser zu fördern. Dennoch bestehen weiterhin Unsicherheiten, die durch negative Ereignisse, wie die aktuelle Datenspäh-Affäre, zu sinkendem Vertrauen in Cloud-Lösungen und einer geringeren Adaption dieser führen. In dieser Forschungsarbeit sollen anhand der Geschäftsmodell-Logik CloudLösungen von crowdfinanzierten Startups untersucht werden, um Ähnlichkeiten und Unterschiede zwischen erfolgreichen und erfolglosen Projekten identifizieren zu können. Erste Erkenntnisse erfolgreicher Projekte zeigen, dass die Bündelung von Hard-, Software und Service ein geeigneter erster Schritt zur Steigerung der Akzeptanz von Cloud-Lösungen sein kann. Ergebnisse dieser Untersuchung sollen dabei helfen zu verstehen, wie die Adaption von Cloud-Lösungen gefördert werden kann.
Löffler, B. ; Schmidt, L.:Potential der Simulation von Einschränkungen mit Hilfe eines Alterssimulationsanzuges für arbeitsplatzgestaltende Maßnahmen in einer älter werdenden Gesellschaft.. In: Böckelmann, I. ; Lorenz, A. ; Sammito, S. ; Darius, S. (eds.): Forum Arbeitsphysiologie: 18. Symposium Arbeitsmedizin und Arbeitswissenschaft für Nachwuchswissenschaftler (Magdeburg 2014). Otto-von-Guericke-Universität Magdeburg, 2014, p. 25
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Hintergrund / Zielsetzung: In vielen industrialisierten Ländern verändert sich die Bevölkerungsstruktur: Die geburtenstarken Jahrgänge der Nachkriegszeit werden in einigen Jahren aus dem Erwerbsleben ausscheiden. Die nachfolgende Generation, zahlenmäßig unterlegen, wird auf Grund der wirtschaftlichen Entwicklungen und den Herausforderungen zur Finanzierung der Renten mindestens bis in ihr 67stes Lebensjahr berufstätig sein. Um diesen Veränderungen Rechnung zu tragen, sind Arbeitsplätze so zu gestalten, dass sie auch für Menschen in fortgeschrittenem Alter geeignete Arbeitsbedingungen bieten. Eine Möglichkeit die ergonomischen Anforderungen Älterer zu überprüfen, ist die Verwendung von Alterssimulationsanzügen, die u. a. Mobilitätseinschränkungen bei noch nicht eingeschränkten Personen simulieren. Ziel dieses Beitrages ist es, einen ersten Ansatz für eine wissenschaftliche Belegung eines Alterssimulationsanzuges mit flexiblen Gurten zu liefern. Wichtig ist dabei die Frage, in wie fern und in welchem Maße er Einschränkungen simuliert. Hintergrund ist die Fragestellung, ob sich Alterssimulationsanzüge als Werkzeug z. B. für die Gestaltung von Arbeitsplätzen eignen. Methode: In einem ersten Versuch wurden die Einschränkungen beim Gehen in Schrittgeschwindigkeit untersucht. Hierzu wurde eine 3,5 m lange Strecke mit und ohne Anzug von jeweils zwei Probanden abgegangen und die Bewegungen mit Hilfe eines Motion-Tracking-Systems (ARTtrack 2) aufgezeichnet und verglichen. Ausgewertet wurden Parameter aus der Ganganalyse. Diese umfassten den Gangzyklus und die Winkelverläufe von Hüfte, Knie und Sprunggelenk. Ergebnisse: Erste Ergebnisse zeigen, dass der Anzug zu einem alterstypischen, pathologischen Gangbild führt. Typisch ist z. B. die Minimierung der Schrittlänge. Der Knieflexionswinkel weist mit Anzug eine höhere Amplitude auf, da der Anzug ein Durchstrecken der Knie verhindert. Unterschiede in der Gurtlänge von linker zu rechter Seite wirken sich auf die Winkel aus. Diskussion / Schlussfolgerungen: Ob auch andere Mobilitätseinschränkungen und eine graduelle Einstellung von "etwas eingeschränkt" bis "sehr eingeschränkt" möglich ist, muss in weiteren Versuchen ermittelt werden.
Janson, Andreas ; Söllner, Matthias ; Bitzer, Philipp ; Leimeister, Jan Marco: Examining the effect of different measurements of learning success in technology-mediated learning research research-in-progress (2014)
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This research-in-progress paper examines the effects of different measurement methods for learning success with respect to the empirical evaluation of technology-mediated learning (TML). We argue that the use of self-reported data for the major dependent variable of TML, learning success, is insufficient and a major validity threat of past research results; thus, we examine the effect of employed measurement methods in TML against the background of common method variance. We are currently conducting a study on the antecedents of learning success measured by three different approaches that include self-reported learning and objective learning success. By analyzing the data, we are able to investigate how different measurement approaches to learning success impact research findings. Our contribution to theory and practice is an assessment of the validity of self-reported learning success measures and the impact of different measurement approaches for the relationships in a TML model.
Atzmueller, M. ; Chin, A. ; Trattner, C. (eds.):Proceedings MSM 2014: Workshop on Modeling Social Media - Mining Big Data in Social Media and the Web. New York, NY, USA : ACM Press, 2014
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Hoffmann, Axel ; Söllner, Matthias ; Hoffmann, Holger ; Leimeister, Jan Marco:Requirement Patterns to Support Socio-Technical System Design.. In: David, K. ; Geihs, K. ; Leimeister, J. M. ; Roßnagel, A. ; Schmidt, L. ; Stumme, G. ; Wacker, A. (eds.): Socio-technical Design of Ubiquitous Computing Systems. Cham : Springer International Publishing, 2014 — ISBN 978-3-319-05044-7, pp. 191–209
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The rise of socio-technical ubiquitous systems integrated into peoples' lives call for the consideration of requirements originating from different domains during requirements engineering. Important aspects are fostering the systems legal compatibility, its usability and users' trust, and hence their acceptance of, the system. To spare requirements analysts from incorporating different experts or interpreting socio-technical literature, we provide a pattern-based approach for the collection of socio-technical requirements. In this chapter we show how requirements analysts can use requirement patterns within the socio-technical system development to consider normative requirements. Therefore, we show a process, and provide advantages and explore under which circumstances requirement patterns can help.
Scholz, Christoph ; Macek, Bjoern-Elmar ; Atzmueller, Martin ; Doerfel, Stephan ; Stumme, Gerd:Mining Social Links for Ubiquitous Knowledge Engineering.. In: David, K. ; Geihs, K. ; Leimeister, J.-M. ; Roßnagel, A. ; Schmidt, L. ; Stumme, G. ; Wacker, A. (eds.): Socio-technical Design of Ubiquitous Computing Systems. Heidelberg, Germany : Springer Verlag, 2014
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Atzmueller, Martin ; Thiele, Lisa ; Stumme, Gerd ; Kauffeld, Simone:Evolution and Dynamics of Student Interaction on Networks of Face-to-Face Proximity.. In: Proceedings of the 2014 International Smart University Workshop (SmartU 2014), London, UK. London, UK, 2014
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Atzmueller, M. ; Scholz, C. (eds.):Proceedings of the 2014 International Workshop on Mining Ubiquitous and Social Environments (MUSE 2014). Nancy, France : ECML/PKDD 2014, 2014
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Maier, Natalie: Die Datenweitergabe im Rahmen des Cloud Computings unter besonderer Betrachtung von Unterauftragsverhältnissen. In: press, kassel university (ed.) Forum Wirtschaftsrecht vol. 19 (2014)
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Hoffmann, Axel: Anforderungsmuster zur Spezifikation soziotechnischer Systeme - Standardisierte Anforderungen der Vertrauenswürdigkeit und Rechtsverträglichkeit. In: Research on IT / Service / Innovation / Collaboration vol. 3, Kassel University Press (978-3-86219-716-3), Kassel, Germany (2014)
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Kroll, Dennis ; Kusber, Rico ; David, Klaus:Event Driven Time Synchronization of Mobile Devices.. In: Brush, A. J. ; Friday, A. ; Kientz, J. A. ; Scott, J. ; Song, J. (eds.): Proceedings of the 2014 ACM International Joint Conference on Pervasive and Ubiquitous Computing: Adjunct Publication, UbiComp ’14 Adjunct. Seattle, Washington, USA : ACM, 2014 — ISBN 978-1-4503-3047-3, pp. 451–457
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Mobile devices are increasingly used for context recognition. Recognition accuracies partly depend on the time synchronicity between the mobile devices used for data recording and labeling. Mobile device synchronization can be done via the Internet or GPS, but both are not available in all areas. This paper presents our novel approach "Event Driven Time Synchronization of Mobile Devices" that works anytime, anywhere. The idea is to trigger sensor events on each device as much as possible at the same time. The time difference of the sensor event occurrences is interpreted as the time difference between the devices, called time offset between the devices. Our prototype utilizes proximity events to enable this. Our evaluation shows that 99% of the time offsets vary not more than 60 ms. Compared to this, only 17% are within this variance when using Network Time Protocol via a mobile High Speed Downlink Packet Access Internet connection.
Kroschwald, S. ; Wicker, M. ; Roßnagel, A.:Rechtsfragen kooperativer Prozessmodellierung am Beispiel der Trinkwasserhausanschlusserstellung sowie der Hydrantenprüfung des Zweckverbandes Grevesmühlen. Kassel, 2014
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Kroschwald, S.: Verschlüsseltes Cloud Computing – Auswirkung der Kryptografie auf den Personenbezug in der Cloud. In: Zeitschrift für Datenschutz (ZD) (2014), pp. 75–80
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Scholz, Christoph ; Illig, Jens ; Atzmueller, Martin ; Stumme, Gerd: On the Predictability of Talk Attendance at Academic Conferences (Extended Version). In: CoRR vol. abs/1407.0613 (2014)
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Bretschneider, Ulrich ; Ebel, Philipp ; Zogaj, Shkodran ; Leimeister, Jan Marco:Not Only for Ideation, But Also for Signaling: Incorporating User-Profile-Webpages into Virtual Ideas Communities.. In: Proceedings of The 10th International Symposium on Open Collaboration (OpenSym ’14). Berlin, Germany, 2014
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Söllner, Matthias ; Leimeister, Jan Marco:Accounting for Interdisciplinary Requirements in Socio‐technical Systems Design.. In: Workshop on "Revisiting Socio-technical System Design" at the European Conference on Cognitive Ergonomics (ECCE) 2014. Vienna, Austria, 2014
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Nebel, Maxi ; Roßnagel, Alexander:Simulationsstudie Ersetzendes Scannen, Ergebnisse : Projektgruppe verfassungsverträgliche Technikgestaltung (provet) im Forschungszentrum für Informationstechnik-Gestaltung (ITeG) der Universität Kassel, 2014
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Niemczyk, Stefan ; Kniewel, Romy ; Schulz, Thomas ; Söllner, Matthias:Meet-U: Mobile Social Network.. In: David, K. ; Geihs, K. ; Leimeister, J. M. ; Roßnagel, A. ; Schmidt, L. ; Stumme, G. ; Wacker, A. (eds.): Socio-technical Design of Ubiquitous Computing Systems. Berlin (DOI: 10.1007/978-3-319-05044-7_14) : Springer, 2014, pp. 247–260
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Braun, R. ; Strenge, B. ; Schmidt, L.: E2V. In: Schlussbericht des BMBF-Projektes, Schlussbericht des BMBF-Projektes.. Fachgebiet Mensch-Maschine-Systemtechnik der Universität Kassel (2014)
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Für viele abgeschlossene Gebiete wie z. B. urbane Kerne, verkehrsfreie Wohnviertel, Park- und Kulturlandschaften verbietet sich aufgrund der räumlichen Gegebenheiten, von Umweltaspekten, Tourismus oder anderen Gründen die Verwendung von regulären Straßenfahrzeugen. Andererseits besteht die Notwendigkeit, ohne Veränderung der Infrastruktur gerade für ältere oder behinderte Menschen diese Gebiete zu erschließen und dabei Informationen zum Umfeld sowie Fahrerassistenz bereit zu stellen. Im E2V-Projekt wurde daher das Gesamtziel verfolgt, ein kompaktes, wendiges, leichtes und teilautonomes elektrisches Fahrzeug mit interaktiver, kontextorientierter Mensch-Maschine-Schnittstelle und entsprechendem Nutzerkonzept für einen derartigen Anwendungskontext zu entwickeln. Ziel des Teilvorhabens Mensch-Maschine-Interaktion war es, die Schnittstellen zwischen den betroffenen Menschen und dem Fahrzeug zu behandeln, einschließlich der Gestaltung des Innenraums, der Bedienelemente für die Fahrzeugsteuerung sowie der Administration und Darstellung der Inhalte der Informations- und Navigationssysteme, um die Gebrauchstauglichkeit und Akzeptanz des Systems sicherzustellen. Zu diesem Zweck konnte auf ein umfangreiches Repertoire bestehender Erkenntnisse, Methoden und Werkzeuge zur benutzerorientierten Gestaltung zurückgegriffen werden, die den Projektcharakteristiken entsprechend ausgewählt und eingesetzt wurden. Dazu gehörte eine Anforderungsdefinition auf Basis von Analysen des Nutzungskontexts (Nutzer, Aufgaben und Umgebung), softwaregestützten anthropometrischen Analysen (Reichweiten, Platzbedarf, Blickwinkel etc.) und systematischer Recherchen existierender Konzepte. Unter Berücksichtigung der besonderen Eigenschaften und Bedürfnisse der Zielgruppe älterer und körperlich eingeschränkter Menschen, die darüber hinaus nicht über eine Fahrerlaubnis verfügen müssen, wurde entschieden, dass für die Fahrzeugsteuerung ein Side Stick und für die Ein- und Ausgabe des Informationssystems ein Touchscreen sowie Lautsprecher zur Audioausgabe einzusetzen sind. Anhand dieser Erkenntnisse wurden geeignete Komponenten zur Fahrzeugsteuerung identifiziert und prototypische Entwürfe der Benutzungsschnittstellen der Informations- und Navigationssysteme entwickelt. Letztere wurden zunächst mittels auf den Anwendungskontext angepasster, leichtgewichtiger Evaluationsmethoden iterativ optimiert und anschließend durch einen Unterauftragnehmer prototypisch implementiert. Abschließend wurde eine Evaluation der Informations- und Navigationssysteme im Rahmen von Nutzertests mit einem speziell zu diesem Zweck aufgebauten Fahrsimulator durchgeführt, der wie das eigentliche E2V mit einem einhändig bedienbaren Side Stick gesteuert werden konnte. Die Evaluationsergebnisse spiegelten einige sehr spezielle Bedürfnisse und Anforderungen der primären Zielgruppe wider, zumal bestimmte Benutzungsprobleme exklusiv bei den ältesten Testteilnehmern aufgetreten sind. Als Gründe hierfür sind u. a. fehlende Erfahrung bei der Computernutzung sowie verringerte Sinneswahrnehmung anzunehmen. Bei einer ergänzenden Untersuchung unterschiedlicher Steuerungskonzepte für den aktiven Side Stick wurde eine tendenzielle subjektive Präferenz der Testteilnehmer für eine auf der Längsachse isometrische und auf der Querachse vergleichsweise schwergängige Konfiguration ermittelt. Darüber hinaus gab es objektive Hinweise darauf, dass dieses Steuerungskonzept vergleichsweise gut mit einem für das E2V vorgesehenen Assistenzsystem harmoniert, das den Fahrer beim Abkommen vom Weg durch Vibration des Side Sticks warnt. Das Assistenzsystem selbst wurde von den Testpersonen durchweg als hilfreich bewertet
Geminn, Christian L. ; Roßnagel, A. (ed.):Rechtsverträglicher Einsatz von Sicherheitsmaßnahmen im öffentlichen Verkehr, DuD-Fachbeiträge : Springer Vieweg, 2014
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Brenner, Walter ; Karagiannis, Dimitris ; Kolbe, Lutz ; Krüger, Jens ; Lamberti, Herman-Josef ; Leifer, Larry ; Leimeister, Jan Marco ; Österle, Hubert ; et al.: User, Use & Utility Research : The digital user as new design perspective in Business & Information Systems Engineering. In: Business & Information Systems Engineering (BISE) (2014), Nr. 1, pp. 55–61
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Roßnagel, Alexander ; David, Klaus ; Bieling, Gisela ; Böhnstedt, Doreen ; Jandt, Silke ; Ohly, Sandra ; Schmitt, Antje ; Steinmetz, Ralf ; et al.: Balancing the online life: Mobile usage scenarios and strategies for a new communication paradigm. In: IEEE Vehicular Technology Magazine vol. 9 (2014), Nr. 3, pp. 72–79 (DOI: 10.1109/MVT.2014.2333763)
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Kissel, Dorothea ; Ohly, Sandra ; Ebel, Philipp ; Leimeister, Jan Marco:Experimentelle Überprüfung des Effekts von Diversitätsüberzeugungen in Arbeitsteams auf innovative Leistung.. In: G-Forum. Oldenburg, 2014
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Fähling, Jens ; Köbler, Felix ; Leimeister, Jan Marco ; Krcmar, Helmut: From products to product-service systems: IT-driven transformation of a medical equipment manufacturer. In: Journal of Information Technology Teaching Cases (2014), Nr. 4, pp. 20–26
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Baraki, Harun ; Geihs, Kurt ; Hoffmann, Axel ; Voigtmann, Christian ; Kniewel, Romy ; Macek, Björn-Elmar ; Zirfas, Julia:Towards Interdisciplinary Design Patterns for Ubiquitous Computing Applications : Zentrum für Informationstechnik‐Gestaltung (ITeG), 2014
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To draw on the full potential of Ubiquitous Computing (UC) systems, they have to be designed with awareness for their social embedding in order to increase the user acceptance. To this end, not only the compliance with laws has to be ensured, but also usability-enhancing and trust and confidence-building measures have to be applied. This makes the development of UC applications a challenging task that involves experts from different disciplines. The main contribution of this report is a set of design patterns for UC applications that specifically focus on the interweaving and implementation of multidisciplinary requirements. The patterns capture the design know-how of typical, recurring features in context-aware adaptive UC applications with particular concern for the sociotechnical requirements. First, we present a detailed discussion of the related work on design patterns in the realm of UC. Afterwards, we explain our research methodology and the template structure of our pattern specifications. The core of the report consists of eight interdisciplinary UC design patterns. This initial list of patterns was derived from several application case studies in the interdisciplinary research project LOEWE-VENUS. We view this collection as a starting point for an evolving set of commonly accepted reusable design patterns that facilitate the development of accepted and acceptable UC applications.
Scholz, Christoph ; Atzmueller, Martin ; Stumme, Gerd: Predictability of Evolving Contacts and Triadic Closure in Human Face-to-Face Proximity Networks. In: Journal of Social Network Analysis and Mining vol. 4 (2014), Nr. 217
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Scholz, Christoph ; Atzmueller, Martin ; Kibanov, Mark ; Stumme, Gerd: Predictability of Evolving Contacts and Triadic Closure in Human Face-to-Face Proximity Networks. In: Journal of Social Network Analysis and Mining vol. 4 (2014), Nr. 217
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Peters, Christoph: Flexibilität für den Anbieter und maßgeschneiderte Angebote für den Kunden - Modularisierung von Dienstleistungen in der Telemedizin. In: Möller, K. ; Schultze, W. (eds.) Effizienzbewertung von Dienstleistungskonfigurationen in der Telemedizin (2014), pp. 8–9
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Evers, C. ; Kniewel, R. ; Geihs, K. ; Schmidt, L.: The User in the Loop: Enabling User Participation for Self-adaptive Applications. In: Future Generation Computer System vol. 34 (2014), Nr. 5, pp. 110–123
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Future computing systems must adjust to the user’s situations, habits, and intentions. Self-adaptive applications autonomously adapt to changing contexts without asking the user. However, the self-adaptive behaviour lacks of success if it does not correspond to the user’s personal interaction habits and intentions, particularly for complex scenarios with a high degree of user interaction. Concerning the interaction design, such adaptations can be irritating and distracting for the user if they do not match the current situation. In this article we provide a solution how to integrate the user in the self-adaptation feedback loop. The user will be able to influence the adaptation behaviour at run-time and in the long term by setting individual preferences. Consequently, we achieve a harmonisation between full application autonomy and user control. We implemented our generic concepts by extending an existing self-adaptation middleware with capabilities to respect the user’s application focus and interaction behaviour. A notification-based solution for user participation has been evaluated in a substantial user study with 62 participants. Although participants perceived much better control with our solution, the study made clear that notification design is specific for each adaptation type.
Janson, Andreas ; Söllner, Matthias ; Bitzer, Philipp ; Leimeister, Jan Marco:Examining the Effect of Different Measurements of Learning Success in Technology-mediated Learning Research.. In: International Conference on Information Systems (ICIS). Auckland, New Zealand, 2014
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Scholz, Christoph ; Atzmueller, Martin ; Stumme, Gerd:Unsupervised and Hybrid Approaches for On-Line RFID Localization with Mixed Context Knowledge.. In: ISMIS, 2014
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Geppert, M. ; Roßnagel, A. (eds.):TeleMediaR - Telekommunikations- und Multimediarecht, dtv-Textsammlung mit einer Einführung. 10. ed.. München : beck-text im dtv, 2014
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Macek, Bjoern-Elmar ; Atzmueller, Martin ; Stumme, Gerd:Predicting the Stability of User Interaction Ties in Twitter.. In: Proc. I-KNOW 2014. New York, NY, USA : ACM Press, 2014
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Scholz, Christoph ; Atzmueller, Martin ; Stumme, Gerd: Link Prediction and the Role of Stronger Ties in Networks of Face-to-Face Proximity. In: CoRR vol. abs/1407.2161 (2014)
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Scholz, Christoph ; Atzmueller, Martin ; Stumme, Gerd:On the Predictability of Recurring Links in Networks of Face-to-Face Proximity.. In: Proc. WWW 2014 (Companion) : IW3C2 / ACM, 2014
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Scholz, Christoph ; Illig, Jens ; Atzmueller, Martin ; Stumme, Gerd:On the Predictability of Talk Attendance at Academic Conferences (Extended Abstract).. In: Proc. LWA 2014 (KDML Special Track). Aachen, Germany : RTWH Aachen University, 2014
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Scholz, Christoph ; Illig, Jens ; Atzmueller, Martin ; Stumme, Gerd:On the Predictability of Talk Attendance at Academic Conferences.. In: Proc. 25th ACM Conference on Hypertext and Social Media. New York, NY, USA : ACM Press, 2014
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Scholz, Christoph ; Illig, Jens ; Atzmueller, Martin ; Stumme, Gerd:On the Predictability of Talk Attendance at Academic Conferences (Extended Abstract, Resubmission).. In: Proc. LWA 2014 (KDML Special Track). Aachen, Germany : RTWH Aachen University, 2014
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Hoffmann, H. ; Söllner, M.: Incorporating Behavioral Trust Theory Into System Development for Ubiquitous Applications. In: Personal and Ubiquitous Computing vol. 18 (2014), Nr. 1, pp. 117–128. — 374
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Oeste, Sarah ; Wegener, René ; Leimeister, Jan Marco:Herausforderungen und Best Practices der E-Learning Einführung im Unternehmen.. In: Multikonferenz Wirtschaftsinformatik (MKWI). Paderborn, Germany, 2014
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Oeste, Sarah ; Söllner, Matthias ; Leimeister, Jan Marco:Engineering Peer-to-Peer Learning Processes for Generating High Quality Learning Materials.. In: International Conference on Collaboration and Technology (CRIWG). Santiago, Chile, 2014
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Organizations are facing the challenge of transferring knowledge from experienced to novice employees and are seeking for solutions that avoid the loss of knowledge with retiring experts. A possible way for overcoming this challenge is having employees develop learning materials for their novice colleagues. Based on insights from both, education and collaboration research, designing structured collaborative peer-creation-processes seems a promising approach due to several reasons. Within a peer-creation-process participants are guided to knowledge acquisition, transfer as well as documentation for others. By developing learning materials through collaboration with people at different level of knowledge, e.g., the tacit knowledge of the expert gets codified and is ready for being used by novices. Furthermore, the collaborative creation will create learning effects even among participants and should further increase their knowledge, and the quality of the learning materials. Unfortunately, little research has addressed reusable didactically driven processes of systematically documenting knowledge that can be used by others as learning material. In order to bridge this gap we identify requirements from educational and collaboration literature and conceptualize educationally driven changes in the layer model of collaboration, e.g., to consider learning objectives in the goals layer or to integrate peer review as mechanisms for quality control in the procedures layer. This paper opens up a promising field for collaboration research and provides future research directions for reusable structured peer-creation-processes with focus on learning. This research-in-progress paper closes with a conceptual framework with requirements of a collaborative peer creation process.
Lehmann, Katja ; Söllner, Matthias:Theory-Driven Design of a Mobile-Learning Application to Support Different Interaction Types in Large-Scale Lectures.. In: European Conference on Information Systems (ECIS). Tel Aviv, Israel : SSRN, 2014
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Universities face increasing numbers of students leading to increasingly large lectures, and decreasing interaction and collaboration, which are important factors for learning success and satisfaction. The use of IT can help overcoming this challenge by increasing the interaction in large-scale lectures without massively increasing the workload of lecturers. In this research-in-progress paper, we present the design and pre-test of a mobile-learning application aiming to increase the interaction in large-scale lectures and the learning success of learners. For designing our application, we follow a design science research approach. We rely on insights from interaction theory as well as requirements gathered from lecturers and students in a focus group workshop. A pre-test of our application showed high values for Perceived Usefulness, User Satisfaction, and Perceived Presentation Quality for the overall application and moreover high values for Performance Expectancy and Intention to Use of all but one functions. The results show that the application is ready for being used in large-scale lectures. As a next step, the application will be used in one of our large-scale lectures aiming to evaluate whether using our application has a positive impact on interaction, satisfaction and learning success.
Oeste, Sarah ; Lehmann, Katja ; Janson, Andreas ; Leimeister, Jan Marco:Flipping the IS Classroom – Theory-Driven Design for Large-Scale Lectures.. In: International Conference on Information Systems (ICIS). Auckland, New Zealand, 2014
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Kipp, Philipp ; Bittner, E. A. C. ; Bretschneider, Ulrich ; Leimeister, Jan Marco:User collaboration for idea elaboration.. In: Mulitkonferenz Wirtschaftsinformatik (MKWI). Paderborn, Germany, 2014
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Ochs, Carsten ; Ilyes, Petra: Sociotechnical Privacy: Mapping the Research Landscape. In: Tecnoscienza. Italian Journal of Science & Technology Studies vol. 4 (2014), Nr. 2, pp. 73–91
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Haas, Philipp ; Blohm, Ivo ; Leimeister, Jan Marco:An Empirical Taxonomy of Crowdfunding Intermediaries.. In: International Conference on Information Systems (ICIS). Auckland, New Zealand, 2014
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Bittner, E. A. C. ; Leimeister, J. M.: Creating Shared Understanding in heterogeneous work groups - Why it matters and how to achieve it. In: Journal of Management Information Systems (JMIS) vol. 31 (2014), Nr. 1, pp. 111–143
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Ebel, P. ; Bretschneider, U. ; Leimeister, J. M.:Pyramiding 2.0: Exaptation of the Pyramiding Approach to Recruit New Idea Contributors for a Virtual Ideas Competition.. In: International Conference on Information Systems (ICIS). Auckland, New Zealand, 2014
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Heußner, M. ; Ackermann, L. ; Schmidt, L.:AAL-Weiterbildung für Pflege und Handwerk: Ergebnisse der ersten Testphase.. In: Verband der Elektrotechnik Elektronik Informationstechnik e. V. (ed.): Wohnen - Pflege - Teilhabe: Besser leben durch Technik : 7. Deutscher AAL-Kongress (Berlin 2014). Berlin : VDE-Verlag, 2014, pp. 1–6 (a40)
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Das Ziel des Projektes "TAAndem - AAL-Weiterbildung im Tandem" ist die Entwicklung einer gemeinsamen Weiterbildungsmaßnahme im Themenfeld AAL. Diese richtet sich im ersten Schritt an Pflegekräfte und Handwerker. Bei der Wissensvermittlung wird das didaktische Konzept des Tandemlernens aufgegriffen. Im Rahmen eines "AALSchnuppertages" wurden einzelne Teilaspekte für die anstehende Pilotphase mit potenziellen Teilnehmern getestet.
Lamla, J. ; Laux, H. ; Rosa, H. ; Strecker, D. (eds.):Handbuch der Soziologie. Konstanz : UVK (Reihe: UTB), 2014
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Richter, P. ; Henning, M.: Der gefilmte Stimmzettel - Smartphones und Smartglasses in der Wahlkabine?. In: KommPWahlen vol. 9 (2014)
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Roßnagel, A.: Neue Maßstäbe für den Datenschutz in Europa. Folgerungen aus dem Urteil des EuGH zur Vorratsdatenspeicherung. In: Multimedia und Recht (2014), Nr. 6, pp. 372 – 377.
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Roßnagel, A.: Fahrzeugdaten - wer darf über sie entscheiden? Zuordnungen – Ansprüche – Haftung. In: Straßenverkehrsrecht (2014), pp. 281–287
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David, K. ; Geihs, K. ; Leimeister, J. M. ; Roßnagel, A. ; Schmidt, L. ; Stumme, G. ; Wacker, A.:Socio-technical Design of Ubiquitous Computing Systems. Cham : Springer, 2014
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By using various data inputs, ubiquitous computing systems detect their current usage context, automatically adapt their services to the user’s situational needs and interact with other services or resources in their environment on an ad-hoc basis. Designing such self-adaptive, context-aware knowledge processing systems is, in itself, a formidable challenge. This book presents core findings from the VENUS project at the Interdisciplinary Research Center for Information System Design (ITeG) at Kassel University, where researchers from different fields, such as computer science, information systems, human-computer interaction and law, together seek to find general principles and guidelines for the design of socially aware ubiquitous computing systems. To this end, system usability, user trust in the technology and adherence to privacy laws and regulations were treated as particularly important criteria in the context of socio-technical system design. During the project, a comprehensive blueprint for systematic, interdisciplinary software development was developed, covering the particular functional and non-functional design aspects of ubiquitous computing at the interface between technology and human beings. The organization of the book reflects the structure of the VENUS work program. After an introductory part I, part II provides the groundwork for VENUS by presenting foundational results from all four disciplines involved. Subsequently, part III focuses on methodological research funneling the development activities into a common framework. Part IV then covers the design of the demonstrators that were built in order to develop and evaluate the VENUS method. Finally, part V is dedicated to the evaluation phase to assess the user acceptance of the new approach and applications. The presented findings are especially important for researchers in computer science, information systems, and human-computer interaction, but also for everyone working on the acceptance of new technologies in society in general.
David, K. ; Geihs, K. ; Leimeister, J. ; Roßnagel, A. ; Schmidt, L. ; Stumme, G. ; Wacker, A. (eds.):Interdisciplinary Design of Socio-technical Ubiquitous Systems. Berlin, 2014
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Blohm, Ivo ; Leimeister, Jan Marco ; Zogaj, Shkodran:Crowdsourcing und Crowd Work - ein Zukunftsmodell der IT-gestützten Arbeitsorganisation?. In: Brenner, W. ; Hess, T. (eds.): Wirtschaftsinformatik in Wissenschaft und Praxis. vol. Business Engineering. Berlin Heidelberg : Springer-Verlag, 2014, pp. 51–64
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David, Klaus ; Bieling, Gisela ; Böhnstedt, Doreen ; Jandt, Silke ; Ohly, Sandra ; Roßnagel, Alexander ; Schmitt, Antje ; Steinmetz, Ralf ; et al.:Facilitating Work-Life Balance in an “Always-Online”-Society – Mobile Usage Scenarios and Strategies for a New Communication Paradigm.. In: IEEE VT Magazine, 2014
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Leimeister, Jan Marco ; Rajagopalan, Balaji:Virtual Communities: An Introduction.. In: Leimeister, J. M. ; Rajagopalan, B. (eds.): Virtual Communities: Advances in Management Information Systems. Armonk, NY (ISBN: 978-0-7656-2653-0) : M.E. Sharpe, 2014
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Richter, P. ; Roßnagel, A.: Internetwahlen an Hochschulen - Rechtliche Anforderungen an die technische und rechtliche Gestaltung. In: DuD (2014), p. 93
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Söllner, Matthias ; Janson, Andreas ; Peters, Christoph ; Leimeister, Jan Marco:The Impact of the Individual – Relating Cultural Differences to the Appropriation Process of Technology-mediated Learning Services.. In: Annual AIS SIG Services Pre-ICIS Workshop 2014. Auckland, New Zealand, 2014
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Leimeister, Jan Marco ; Söllner, Matthias ; Gebauer, Lysann:Vertrauensleitfaden für Cloud-Computing-Dienste: Ein Leitfaden zur Förderung von Vertrauen durch die Gestaltung der Online-Produktpräsentation. Kassel, Germany : Chair for Information Systems, Kassel University, 2014
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Im Sinne des Dienstleistungsengineerings und -managements unterstützt der Leitfaden die vertrauensförderliche Gestaltung von Dienstleistungen. Der Leitfaden richtet sich an Unternehmen, die Cloud- Computing-Dienste anbieten und das Vertrauen der Kunden in den Dienst als auch in den Anbieter selbst über die Online-Produktpräsentation aktiv fördern möchten. Das Vertrauen soll hierbei sowohl in den Anbieter als auch in die zu Grunde liegende Technik, also Cloud- Computing, gestärkt werden. Der Leitfaden wurde auf Grundlage eines wissen- schaftlichen Vorgehens zur systematischen Vertrauensförderung entwickelt, welches sich bereits zur Vertrauensförderung bei verschiedenen IT-Systemen bewährt hat.
Blohm, I. ; Leimeister, J. M. ; Krcmar, H.:IT-basierte, gemeinschaftsgestützte Innovationsentwicklung für Softwareunternehmen.. In: Jostmeier, M. ; Georg, A. ; Jacobsen, H. (eds.): Sozialen Wandel gestalten: Dortmunder Beiträge zur Sozialforschung. Wiesbaden, Germany : Springer VS, 2014, pp. 237–249
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Leimeister, Jan Marco ; Zogaj, Shkodran:Crowdsourcing – Neue globale Wertschöpfungskonzepte.. In: Boeas, A. (ed.): Dienstleistung in der digitalen Gesellschaft – Beiträge zur Dienstleistungstagung des BMBF im Wissenschaftsjahr 2014. Frankfurt am Main (ISBN: 978-3-593-50250-2) : Campus Verlag, 2014, pp. 211–221
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Kahlert, A.: Rechtsgestaltung mit der Methode KORA. In: Datenschutz und Datensicherheit (DuD) (2014), pp. 86–92
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Schenk, Michael ; Gölz, Hanna ; Niemann, Julia ; Töpper, Claudia ; Roßnagel, Alexander ; Jandt, Silke ; Kartal-Aydemir, Aliye ; Selg, Olaf ; für Medien Nordrhein-Westfalen, L. (ed.):Faszination Scripted Reality, Realitätsinszenierung und deren Rezeption durch Heranwachsende, LfM-Dokumentation. vol. 52. 750. ed., 2014
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Kahlert, Anna: Sozialversicherungswahlen via Internet – Eine Chance zur Erhöhung der Wahlbeteiligung?. In: Neue Zeitschrift für Sozialrecht (NZS) (2014), pp. 56–61
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Karaboga, Murat ; Masur, Philip ; Matzner, Tobias ; Mothes, Cornelia ; Nebel, Maxi ; Ochs, Carsten ; Schütz, Philip ; Simo Fhom, Hervais ; Quinn/Lamla/Roßnagel/Trepte/Waidner, Z. (ed.):White Paper Selbstdatenschutz.
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Herrmann, R. ; Hegenberg, J. ; Ziegner, D. ; Schmidt, L.: Mensch-Roboter-Interaktion in einem Boden-Luft-Servicerobotiksystem für die Inspektion industrieller Druckluftversorgung und Verbesserung von Arbeitsumgebungsfaktoren. In: 4. Wo?-Kongress, Vortrag, 4. Wo?-Kongress, Vortrag.. Gelsenkirchen (2014)
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Der Beitrag beschreibt das Forschungsprojekt Robotair, dessen Ziel die Entwicklung und Evaluation eines prototypischen, kostengünstigen Boden-Luft-Servicerobotersystems ist. Das System wird für die Detektion und Ortung von Druckluftleckagen zwecks nachhaltiger Ressourcen- und Energienutzung sowie für die Erfassung von Arbeitsumgebungsfaktoren zur Sicherstellung gesunder Arbeitsbedingungen verwendet. Es besteht aus einem teleoperiert fliegenden und einem teilautonom fahrenden Roboter, die beide mit sensorischer Nutzlast ausgestattet sind, sowie einem mobilen Leitstand. Dort wird aus den Sensorsignalen ein aussagekräftiges Lagebild erstellt und dem Nutzer visualisiert. Insbesondere wird die Mensch-Roboter-Interaktion zur Planung, Überwachung und Dokumentation der Inspektionsaufgaben sowie die Teleoperation des Flugroboters durch einen menschlichen Operator vorgestellt. Die Teleoperation soll menschliche Fähigkeiten synergetisch in das System integrieren und wird eingesetzt, falls der Mensch in der Lage ist, bei der Bearbeitung einer Aufgabe bessere Ergebnisse zu erzielen. Zur Unterstützung der Teleoperation wird u. a. eine Datenbrille eingesetzt, die relevante Daten in einer Augmented-Reality-Umgebung visualisiert
Leimeister, Jan Marco:Collaboration Engineering - IT-gestützte Zusammenarbeitsprozesse systematisch entwickeln und durchführen. Berlin Heidelberg, Germany : Springer, 2014 — ISBN 978-3-642-20890-4
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Atzmueller, Martin:Analyzing and Grounding Social Interaction in Online and Offline Networks.. In: Proc. ECML/PKDD 2014: European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases, LNCS. vol. 8726. Heidelberg, Germany : Springer Verlag, 2014, pp. 485–488
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Roßnagel, A.:Entwurf eines Zweiten Gesetzes zur Änderung des Bundesdatenschutzgesetzes – Stärkung der Unabhängigkeit des Datenschutzaufsicht im Bund durch Errichtung einer obersten Bundesbehörde ( Nr. BT-Drs. 18/2848). www.uni-kassel.de/fb07/fileadmin/datas/fb07/5-Institute/IWR/Ro%C3%9Fnagel/sonstiges/Ro%C3%9Fnagel_Stellungnahme_zum_Gesetzentwurf_18-2848.pdf, 2014
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Roßnagel, Alexander ; Jandt, Silke ; Richter, Philipp: Die Zulässigkeit der Übertragung personenbezogener Daten in die USA im Kontext der NSA-überwachung.. In: Datenschutz und Datensicherheit vol. 38 (2014), Nr. 8
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Mitzlaff, Folke ; Atzmueller, Martin ; Hotho, Andreas ; Stumme, Gerd: The Social Distributional Hypothesis. In: Journal of Social Network Analysis and Mining vol. 4 (2014), Nr. 216
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Roßnagel, A.: Arbeitgeberseitige Pflichten zur Offenlegung von Beschäftigungsbedingungen – Verfassungsrechtliche Grenzen. In: Gewerkschaftsbund/Friedrich-Ebert-Stiftung, H.-B.-S. (ed.) Demokratisierung von Gesellschaft und Arbeitswelt – Impulse für eine soziale Rechtspolitik, (2014), pp. 107 – 116
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Kopal, Nils ; Kieselmann, Olga ; Wacker, Arno:Self-Organized Volunteer Computing.. In: Sick, B. ; Tomforde, S. (eds.): Organic Computing: Doctoral Dissertation Colloquium 2014. vol. 4 : Kassel University Press GmbH., 2014, pp. 129–139
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In this paper, we present two new algorithms for distributed volunteer computing. Both algorithms have in common, that they are self-organized. Due to the self-* properties of our algorithms, the reliability of the distributed computing is increased. The network, which builds the basis for the distribution, is an unstructured peer-to-peer (p2p) network. Since there is no central managing unit and no structured addressable overlay in such networks, each peer has to self-organize the job selecting process, the distribution of jobs, and the merging of finished jobs obtained from neighbors. After presenting our two algorithms, namely the Epoch-Distribution-Algorithm and the Sliding-Window-Distribution-Algorithm, we present open questions. Since these algorithms are strongly based on self-organization and peers are working absolute autonomously and other some self-* properties, the algorithms can be classified into to world of the organic computing.
Mitzlaff, Folke ; Atzmueller, Martin ; Hotho, Andreas ; Stumme, Gerd: The social distributional hypothesis: a pragmatic proxy for homophily in online social networks. In: Social Network Analysis and Mining vol. 4, Springer Vienna (2014), Nr. 1
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Applications of the Social Web are ubiquitous and have become an integral part of everyday life: Users make friends, for example, with the help of online social networks, share thoughts via Twitter, or collaboratively write articles in Wikipedia. All such interactions leave digital traces; thus, users participate in the creation of heterogeneous, distributed, collaborative data collections. In linguistics, the
Kopal, Nils ; Kieselmann, Olga ; Wacker, Arno ; Esslinger, Bernhard: CrypTool 2.0. Open-Source Kryptologie für Jedermann. In: Datenschutz und Datensicherheit (DuD) (2014), Nr. 10/2014, pp. 701–708
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Die Lernsoftware CrypTool 2.0 bietet Schülern, Studierenden und Kryptologie-Begeisterten einen einfachen Zugang in die Welt der Kryptographie und der Kryptoanalyse. Nach siebenjähriger Entwicklungszeit hat das CrypTool-2-Team die erste „Release-Version“ veröffentlicht. CrypTool 2.0 wird schon jetzt in Schulen, Hochschulen, Unternehmen und Behörden zur Ausbildung und Awareness-Bildung eingesetzt. Es ist Open-Source und kann von jedermann frei genutzt werden. CrypTool 2.0 beinhaltet eine Vielzahl von Verschlüsselungs- und Analyseverfahren, um deren Sicherheit im Selbststudium oder während eines Kryptologiekurses kennen zu lernen. Innerhalb dieses Artikels erhält der Leser einen kurzen Einblick in das CrypTool-Projekt und einen tiefergehenden in die Software CrypTool 2.0.
Roßnagel, A.: Wem gehören die Daten im Fahrzeug?. In: 52. Deutscher Verkehrsgerichtstag (2014), pp. 257–284
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Roßnagel, A.:Regulierung – was leistet unser Datenschutzrecht (nicht)? in:. In: Hill, H. (Hrsg.) (ed.): E-Transformation. Veränderung der Verwaltung durch digitale Medien, 2014, pp. 78–107
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Roßnagel, A.: Vorratsdatenspeicherung – wie geht es weiter?. In: Multimedia und Recht vol. 7 (2014), Nr. 2, pp. 73 – 74
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Söllner, Matthias ; Hoffmann, Axel ; Hoffmann, Holger ; Wacker, Arno ; Leimeister, Jan Marco:Understanding the Formation of Trust.. In: David, K. ; Geihs, K. ; Leimeister, J. M. ; Roßnagel, A. ; Schmidt, L. ; Stumme, G. ; Wacker, A. (eds.): Socio-technical Design of Ubiquitous Computing Systems. Cham : Springer International Publishing, 2014 — ISBN 978-3-319-05044-7, pp. 39–58
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Ubiquitous computing systems often take the role of a trustee in a trust relationship between users and ubiquitous computing systems. The goal of this chapter is to increase the understanding of the formation of trust in such trust relationships. Instead of using the predominant theoretical foundation of interpersonal trust, we use the theoretical foundation of trust in automation from the HCI discipline. Since we aim at creating insights on the formation of trust and its dimensions, we develop a formative first-order, formative second-order measurement model for trust. To evaluate the impact of the single indicators and dimensions on trust, we conduct a free simulation experiment. Our results show that the dimensions performance, process and purpose have a comparable impact on trust, and that indicators related to user data are especially important. The results complement existing insights, deepening the understanding of the formation of trust in ubiquitous computing systems. (The complete version of this chapter has been presented at the 33rd International Conference on Information Systems 2012 in Orlando, FL, USA, and is also published in the proceedings of the conference as: Söllner, M., A. Hoffmann, H. Hoffmann, A. Wacker, and J.M. Leimeister, Understanding the Formation of Trust in IT Artifacts, in Proceedings of the International Conference on Information Systems (ICIS) 2012: Orlando, Florida, USA.)
Böhmann, Tilo ; Leimeister, Jan Marco ; Möslein, Kathrin M.: Service Systems Engineering - A Field for Future Information Systems Research.. In: Business & Information Systems Engineering vol. 6 (2014), Nr. 2, pp. 73–79
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Koch, M. ; Hoffmann, A. ; Hoffmann, H.:Usability-Anforderungsmuster für die Entwicklung von Software-Applikationen.. In: Working Paper Series, Nr. 6. Kassel, Germany, 2014
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Roßnagel, A.: Neue Regeln für sichere elektronische Transaktionen – Die EU-Verordnung über elektronische Identifizierung und Vertrauensdienste. In: Neue Juristische Wochenschrift (2014), Nr. 51, pp. 3686–3692
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Söllner, Matthias: Deriving Trust Supporting Components for Ubiquitous Information Systems. In: Research on IT / Service / Innovation / Collaboration vol. 1, Kassel University Press (ISBN: 978-3-86219-638-8), Kassel, Germany (2014)
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Richtter, P. ; Bräunlich, K. ; Grimm, R. ; Kahlert, A. ; Roßnagel, A.: Bewertung von Internetwahlsystemen für Sozialwahlen. In: DuD (2014), p. 75
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Roßnagel, A.: Was wird aus der Datenschutzgrundverordnung?,. In: Zeitschrift für Datenschutz (2014), Nr. 11, pp. 545–546
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Leimeister, J. M. ; Winter, R. ; Brenner, W. ; Jung, R.:Research Program “Digital Business & Transformation HSG“.. In: Working Paper Services of University of St.Gallen’s Institute of Information Management, No. 1. St. Gallen, Switzerland, 2014
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Richter, Philipp: Ein anonymes Impressum? Profile in sozialen Netzwerken zwischen Anbieterkennzeichnung und Datenschutz. In: MMR (ed.) MMR (2014), p. 517
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Roßnagel, A.: Gleiche Daten, gleicher Wert? Ersetzendes Scannen. In: DATEV-Magazin vol. 21 (2014), Nr. 2, pp. 18 – 20.
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Roßnagel, A. ; Geihs, K. ; Niemczyk, S. ; Witsch, A.: On the Development of Self-Adaptive Socially Aware Ubiquitous Computing Applications. In: it - information technology vol. 56 (2014), Nr. 1, pp. 33–41
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Leimeister, Jan Marco ; Zogaj, Shkodran ; Blohm, Ivo:Crowdwork - digitale Wertschöpfung in der Wolke: Ein Überblick über die Grundlagen, die Formen und den aktuellen Forschungsstand.. In: Benner, C. (ed.): Crowdwork - zurück in die Zukunft? Perspektiven digitaler Arbeit. Frankfurt am Main : Bund-Verlag, 2014, pp. 9–41
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Doerfel, S. ; Hotho, A. ; Jäschke, R. ; Mitzlaff, F. ; Mueller, J. (eds.):ECML PKDD Discovery Challenge - Recommending Given Names. vol. 1120 : CEUR-WS, 2014
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All over the world, future parents are facing the task of finding a suitable given name for their children. Their choice is usually influenced by a variety of factors, such as the social context, language, cultural background and especially personal taste. Although this task is omnipresent, little research has been conducted on the analysis and application of interrelations among given names from a data mining perspective. Since 1999 the ECML PKDD embraces the tradition of organizing a Discovery Challenge, allowing researchers to develop and test algorithms for novel and real world datasets. The Discovery Challenge 20131 tackled the task of recommending given names in the context of the name search engine Nameling. It consisted of an offline and an online phase. In both phases, participants were asked to create a name recommendation algorithm that could provide suitable suggestions of given names to users of Nameling. More than 40 participants/teams registered for the challenge, of which 17 handed in predictions of the offline challenge. After the end of the offline phase 6 teams submitted a paper. All papers have been peer reviewed and can be found in these proceedings. The different approaches to the challenge are presented at the ECML PKDD workshop on September 27th, 2013, in Prague, Czech Republic. The online challenge ran until the day before the workshop and four teams successfully participated with implementations meeting all required criteria. Details of the two challenge tasks, winners of both phases and an overview of the main findings are presented in the first paper of these proceedings.
Roßnagel, A. ; Kroschwald, S.: Was wird aus der Datenschutzgrundverordnung? – Die Entschließung des Europäischen Parlaments über ein Verhandlungsdokument. In: Zeitschrift für Datenschutz (2014), Nr. 10, pp. 495–500
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Buch, Meike Stefanie ; Gebauer, Lysann ; Holger, Hoffmann: Vertrauen in Cloud Computing schaffen - aber wie?. In: Wirtschaftsinformatik & Management (2014), Nr. 3, pp. 67–77
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Atzmueller, Martin ; Ernst, Andreas ; Krebs, Friedrich ; Scholz, Christoph ; Stumme, Gerd:On the Evolution of Social Groups During Coffee Breaks.. In: [accepted/to appear] (ed.): 5th International Workshop on Modeling Social Media: Mining Big Data in Social Media at the 23rd International World Wide Web Conference, WWW 2014. Seoul, South Korea, 2014
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Habib, A. ; Bonow, G. ; Kroll, A. ; Hegenberg, J. ; Schmidt, L. ; Barz, T. ; Schulz, D.: RoboGasInspector Research Project: Detecting Gas Leaks With Autonomous Mobile Robots. In: Ex-Magazine vol. 40 (2014), pp. 91–97
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Nine project partners developed the prototype of an autonomous mobile robot for detecting gas leaks in extensive industrial plants within the context of the "AUTONOMIK" programme of the German Federal Ministry for Economic Affairs and Energy. The system's autonomous mobility was put into practice using various sensors for auto-localisation and navigation. In addition, it includes an option to intervene manually in the process using teleoperation. Equipped with video and remote gas detection technology, the robot can carry out inspections in industrial plants without having to enter possible hazard areas and without any person present on site. The robot can be used for routine inspection of plants or systematic examination of specific parts of the plant. Using remote metrology technology, it is also possible to inspect parts of the plant that are difficult to inspect using traditional measuring instruments due to limited accessibility.
Prinz, Andreas:Interaction Design Patterns für NFC-basierte Electronic Data Capture Anwendungen. Dieburg (ISBN 978-3-9816875-0-7) : Prinz Publishing, 2014
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Prinz, A. ; Menschner, P. ; Koene, P. ; Köbler, F. ; Krcmar, H. ; Leimeister, J. M.:Verknüpfung von Dienstleistungselementen mit Hilfe von Near Field Communication.. In: Geiger, M. ; Bieber, D. (eds.): Personenbezogene Dienstleistungen im Kontext komplexer Wertschöpfungssysteme – Anwendungsfeld „seltene Krankheiten“. Wiesbaden, Germany : Gabler Verlag, 2014. — 376
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Atzmueller, Martin: Data Mining on Social Interaction Networks. In: Journal of Data Mining and Digital Humanities vol. 1 (2014)
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Bitzer, Philipp ; Leimeister, Jan Marco ; Heidecke, Hans-Christian:SINIT@VW - Ein Ansatz zur systematischen Identifikation des Nutzens von IT-Anwendungen.. In: Rudow, B. ; Heidecke, H.-C. (eds.): Betriebliche Informationssysteme in der Automobilproduktion : De Gruyter, Oldenburg (978-3486800159), 2014, pp. 261–286
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Bitzer, Philipp ; Janson, Andreas:Towards a Holistic Understanding of Technology-Mediated Learning Services - A State-of-the-Art Analysis.. In: European Conference on Information Systems (ECIS). Tel Aviv, Israel, 2014
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Mitzlaff, Folke ; Doerfel, Stephan ; Hotho, Andreas ; Jäschke, Robert ; Mueller, Juergen:Summary of the 15th Discovery Challenge: Recommending Given Names.. In: Doerfel, S. ; Hotho, A. ; Jäschke, R. ; Mitzlaff, F. ; Mueller, J. (eds.): 15th Discovery Challenge of the European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases, ECML PKDD 2013, Prague, Czech Republic - October 27, 2013. Proceedings. vol. 1120. Aachen, Germany : CEUR-WS, 2014, pp. 7–24
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The 15th ECML PKDD Discovery Challenge centered around the recommendation of given names. Participants of the challenge implemented algorithms that were tested both offline - on data collected by the name search engine Nameling - and online within Nameling. Here, we describe both tasks in detail and discuss the publicly available datasets. We motivate and explain the chosen evaluation of the challenge, and we summarize the different approaches applied to the name recommendation tasks. Finally, we present the rankings and winners of the offline and the online phase.
Bitzer, Philipp:Framework for the Productivity-oriented Conceptualisation of Blended Learning Services.. In: Working Paper Series, Nr. 7. Kassel, Germany, 2014
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Hammer, Nadine ; Janson, Andreas ; Leimeister, Jan Marco:Does culture matter? A qualitative and comparative study on eLearning in Germany and China.. In: 27th Bled eConference. Bled, Slovenia, 2014
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Lamla, Jörn:Öffentlichkeit: Soziologie, Zeitdiagnose und Gesellschaftskritik.. In: Lamla, J. et al. (ed.): Handbuch der Soziologie. Konstanz : UVK (Reihe: UTB), 2014, pp. 491–505
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Roßnagel, A. ; Schuldt, M. ; Schulz, T. ; Zirfas, J.: Simulation Study. In: David, K. ; Geihs, K. ; Leimeister, J. M. ; Roßnagel, A. ; Schmidt, L. ; Stumme, G. ; Wacker, A. (eds.) Interdisciplinary Design of Socio-technical Ubiquitous Systems (2014), pp. 321–338
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Simmert, B. ; Ebel, Ph. ; Bretschneider, U.:Empirische Erkenntnisse zur Nutzung des Business Model Canvas.. In: Working Paper Series, Nr. 5. Kassel, Germany, 2014, pp. 1–52
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Heußner, M. ; Löffler, B. ; Schmidt, L.: Design and Evaluation of a Further Education for Persons Working in AAL Context. In: Biomedical Engineering vol. 59 (2014), Nr. S1, pp. S447-S450
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The aim of the TAAndem-project is to develop a common further education for people from different kinds of professions within the context of "Ambient Assisted Living" (AAL). The further education is addressed to geriatric nurses and craftsmen. The didactic method of tandem learning is applied, so people from various working fields can learn with and from each other. In this paper we will present our concept and the steps of development following the user centred design. Different aspects of the further education that are essential for the upcoming pilot run were tested among potential participants. Methods used were requirement analysis, questionnaire surveys, qualitative expert evaluations and empirical observations. The main result is that the didactic method of tandem learning is suitable for transmitting knowledge to our target group. Several results are given in the following article.
Peters, Christoph ; Leimeister, Jan Marco: Interview: Telemedizin – Stand, Herausforderungen und Lösungsansätze. In: Möller, K. ; Schultze, W. (eds.) Effizienzbewertung von Dienstleistungskonfigurationen in der Telemedizin (2014), pp. 10–11
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Boos, Carina: Nutzerunterstützung durch automatisierte Auswertung einzelner standardisierter Vertragsbedingungen, AGB: Was habe ich verpasst?. In: Verbraucher und Recht (VuR) vol. 2 (2014), Nr. 47-52
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Boos, Carina ; Bartsch, Steffen ; Volkamer, Melanie: Rechtliche und technische Nutzerunterstützung bei der Button-Lösung, Ein Lösungsvorschlag zur Erkennbarkeit von Kostenfallen als dem immer noch ungelösten Kernproblem. In: Computer und Recht (CR) vol. 2 (2014), pp. 119–127
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Peters, Christoph ; Elm, Christian ; Söllner, Matthias ; Leimeister, Jan Marco:Blueprint-driven Telemedicine Process Modeling - The Interdisciplinary Development and Evaluation of a Modeling Language for Telemedical Services.. In: Annual AIS SIG Services Pre-ICIS Workshop 2014. Auckland, New Zealand, 2014
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Service process modeling faces domain-specific challenges. Telemedicine, understood as a service system, requires adequate representation for multi-stakeholder service scenarios, technical infrastructures as well as customer interaction levels. This is due to both its world nature, i.e. telemedicine integrates solely technical parts, as well as explicitly person-oriented parts. This design science paper uses action research in order to develop the Blueprint-driven Telemedicine Process Modeling (BTPM) language, a modeling language for telemedicine services (TMSs) and processes that are based on BPMN and service blueprinting. We present how the action research setting guided us through the workshop-informed, iterative design and evaluation of BTPM. It inherits the well-known BPMN-concept of pools and lanes which allows for modular stakeholder-extensions, i.e. adding new pools for new stakeholders. Also, it integrates blueprinting-specific elements, e.g. the line of interaction or the line of visibility, in order to represent both, value-creating face-to-face momenta as well as on-stage and backstage activities. Furthermore, BTPM explicitly considers telemedical devices and distinguishes between stakeholders using color coding. In addition, we show how BTPM meets the telemedicine-specific requirements which have been elicited in case studies performed earlier and have been redefined in the workshops. We also provide a proof-of-concept using a telemonitoring service. Thereby, we contribute to practice by presenting a modeling language that is adequate for telemedicine as it respects the particularities of this service system. It explicitly assists providers to model their service experience scenarios. The theoretical contribution lies in the iterative design and evaluation of the artifact, the BTPM, and the interdisciplinary research setting for the domain-specific language development.
Peters, Christoph ; Elm, Christian ; Leimeister, Jan Marco: Systematische Modularisierung in Theorie und Praxis. In: Krankenhaus-IT-Journal - Sonderausgabe zur conhIT 2014 (2014), pp. 14–17
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Müller, Christopher ; Bretschneider, Ulrich:Internetbedingte Geschäftsmodellinnovationen: Auswirkungen des Internets auf die Geschäftsmodelle etablierter Tageszeitungen.. In: Mulitkonferenz Wirtschaftsinformatik (MKWI). Paderborn, Germany, 2014
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Atzmueller, Martin:Mining Social Interaction -- Ubiquitous Sensors and Social Media.. In: Proc. International Conference on Future RFID Technologies. Eger, Hungary, 2014, pp. 5–13
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Henning, M. ; Budurushi, J. ; Volkamer, M.: Elektronische Wahlen durch Stimmzettelbelege? Untersuchung möglicher Umsetzungen des Öffentlichkeitsgrundsatzes. In: MMR 2014 (2014), pp. 154–158
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Hartmann, M. ; Prinz, A. ; Leimeister, J. M.:Communities für Innovationen – Modulare Erweiterung einer Patientencommunity zur Ideenschmiede.. In: Geiger, M. ; Bieber, D. (eds.): Personenbezogene Dienstleistungen im Kontext komplexer Wertschöpfungssysteme – Anwendungsfeld „seltene Krankheiten“. Wiesbaden, Germany : Gabler Verlag, 2014. — 375
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Doerfel, Stephan ; Zoller, Daniel ; Singer, Philipp ; Niebler, Thomas ; Hotho, Andreas ; Strohmaier, Markus:How Social is Social Tagging?. In: Proceedings of the Companion Publication of the 23rd International Conference on World Wide Web Companion. Seoul, Korea : International World Wide Web Conferences Steering Committee, 2014 — ISBN 978-1-4503-2745-9, pp. 251–252
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Social tagging systems have established themselves as an important part in today's web and have attracted the interest of our research community in a variety of investigations. This has led to several assumptions about tagging, such as that tagging systems exhibit a social component. In this work we overcome the previous absence of data for testing such an assumption. We thoroughly study social interaction, leveraging for the first time live log data gathered from the real-world public social tagging system bibs. Our results indicate that sharing of resources constitutes an important and indeed social aspect of tagging.
Doerfel, Stephan ; Zoller, Daniel ; Singer, Philipp ; Niebler, Thomas ; Hotho, Andreas ; Strohmaier, Markus:Of course we Share! Testing Assumptions about Social Tagging Systems : arXiv.org, 2014
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Social tagging systems have established themselves as an important part in today's web and have attracted the interest from our research community in a variety of investigations. The overall vision of our community is that simply through interactions with the system, i.e., through tagging and sharing of resources, users would contribute to building useful semantic structures as well as resource indexes using uncontrolled vocabulary not only due to the easy-to-use mechanics. Henceforth, a variety of assumptions about social tagging systems have emerged, yet testing them has been difficult due to the absence of suitable data. In this work we thoroughly investigate three available assumptions - e.g., is a tagging system really social? - by examining live log data gathered from the real-world public social tagging system BibSonomy. Our empirical results indicate that while some of these assumptions hold to a certain extent, other assumptions need to be reflected and viewed in a very critical light. Our observations have implications for the design of future search and other algorithms to better reflect the actual user behavior.
Radziwill, M. ; Schmidt, L.:Akzeptanz und Gebrauchstauglichkeit Smartphone-assistierter ÖPNV-Nutzung im Spannungsfeld des demographischen Wandels.. In: Gesellschaft für Arbeitswissenschaft e. V. (ed.): Gestaltung der Arbeitswelt der Zukunft: 60. Kongress der Gesellschaft für Arbeitswissenschaft (München 2014). Dortmund : GfA-Press, 2014, pp. 91–93
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Durch die rasante Entwicklung von Smartphone-Technologien ergeben sich im Mobilitätssektor neue Nutzungspotentiale. Dabei stellt sich jedoch die Frage, ob und wie diese generationenübergreifend genutzt werden können. Um altersabhängige Barrieren bei der Smartphone-assistierten ÖPNV-Nutzung zu identifizieren, wurden im Rahmen eines Feldtests die beiden Aspekte Gebrauchstauglichkeit und Akzeptanz mit zwei Stichproben evaluiert. Die Ergebnisse der Studie zeigen, dass die untersuchte Applikation sowohl von jüngeren als auch von älteren Nutzern eine hohe Akzeptanz erfährt, dass jedoch bei der Effektivität und Effizienz der Aufgabenbewältigung auch signifikante Unterschiede zwischen jüngeren und älteren Nutzern bestehen.
Doerfel, Stephan ; Zoller, Daniel ; Singer, Philipp ; Niebler, Thomas ; Hotho, Andreas ; Strohmaier, Markus:Evaluating Assumptions about Social Tagging - A Study of User Behavior in BibSonomy.. In: Seidl, T. ; Hassani, M. ; Beecks, C. (eds.): Proceedings of the 16th LWA Workshops: KDML, IR and FGWM, Aachen, Germany, September 8-10, 2014. : CEUR-WS.org, 2014, pp. 18–19
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Social tagging systems have established themselves as an important part in today’s web and have attracted the interest of our research community in a variety of investigations. Henceforth, several assumptions about social tagging systems have emerged on which our community also builds their work. Yet, testing such assumptions has been difficult due to the absence of suitable usage data in the past. In this work, we investigate and evaluate four assumptions about tagging systems by examining live server log data gathered from the public social tagging system BibSonomy. Our empirical results indicate that while some of these assumptions hold to a certain extent, other assumptions need to be reflected in a very critical light.
Hartmann, Marco:Lean on Diffusion Theory to Make Ideas-Communities Fly - The Case of DATEV.. In: European Conference on Information Systems (ECIS). Tel Aviv, Israel, 2014
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Menschner, Philipp ; Prinz, Andreas ; Leimeister, Jan Marco:Service Engineering Plus – Systematische Gestaltung personenbezogener Dienstleistungen.. In: Geiger, M. ; Bieber, D. (eds.): Personenbezogene Dienstleistungen im Kontext komplexer Wertschöpfungssysteme – Anwendungsfeld „seltene Krankheiten“. Wiesbaden, Germany : Gabler Verlag, 2014
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Hammer, Nadine ; Leimeister, Jan Marco:Internationalization of eLearning – Consideration of Culture-specific Differences of Self-directed Learning Ability.. In: International Conference on Information Systems (ICIS). Auckland, New Zealand, 2014
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Meschner, Philipp: A Service Engineering Method for Knowledge-Intense Person-Oriented Services. In: Research on IT / Service / Innovation / Collaboration vol. 4, Kassel University Press (978-3-86219-794-1), Kassel, Germany (2014)
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Gierczak, Michael ; Gebauer, Lysann ; Ebel, Philipp Alexander ; Leimeister, Jan Marco:Applying an Open Innovation Method for identifying Challenges in the Cloud Business Environment.. In: ConLife Academics 2013 - Conference for Connected Life (ConLife 2013). Berlin, Germany, 2013
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Atzmueller, Martin ; Bobek, Szymon ; Kibanov, Mark ; Nalepa, Grzegorz J.:Towards the Ambient Classroom: An Environment for Enhancing Collaborative Educational Processes.. In: Roth-Berghofer, T. ; Oussena, S. ; Atzmueller, M. (eds.): Context’13 - Smart University Workshop (SmartUni) 2013, 2013
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With the rapid development of mobile technologies like, e.g., RFID tags, smartphones, and tablets, ambient intelligence applications have gained a huge popularity in recent years. However, most of the existing approaches aim at developing ambient environments that are rather static, and do not take the aspect of social interaction between the inhabitants into account. We argue that this is essential for smart classrooms, meeting rooms and other environments that are strictly based on mechanisms of human face-to-face interactions. In the context of the smart university, we propose the ambient classroom system for enhancing collaborative educational processes using sensor fusion, data mining, semantic technologies, and inference methods.
Henning, M. ; Demirel, D. ; van de Graaf, J. ; Ryan, P. Y. A. ; Buchmann, J.: Prêt à Voter Providing Everlasting Privacy. In: Springer (ed.) E-Voting and Identity (VoteID) (2013), pp. 156 – 175
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Hegenberg, J. ; Cramar, L. ; Schmidt, L.: Teleoperationsunterstützung durch körpergekoppelte Steuerung und wahrnehmungsgerechtes visuelles Feedback. In: 47. Regelungstechnisches Kolloquium, Vortrag, 47. Regelungstechnisches Kolloquium, Vortrag.. Boppard (2013)
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Dieser Vortrag stellt verschiedene Ansätze zur Unterstützung eines menschlichen Operators bei der Teleoperation mobiler Roboter vor. Im Mittelpunkt steht dabei die Gestaltung der Schnittstelle zwischen Mensch und Roboter sowie insbesondere ihre Erweiterung durch geeignete Assistenzfunktionen. Durch Applikation eines benutzerzentrierten Gestaltungsansatzes nach ISO 9241-210 [1, 2, 3] und dabei insbesondere durch Evaluationen mit potentiellen Nutzern wird außerdem die Gebrauchstauglichkeit und Akzeptanz prototypisch realisierter Interaktionskonzepte sichergestellt. Dazu werden ausgewählte Evaluationsergebnisse vorgestellt. Unterstützungsbedarf hinsichtlich der Teleoperation besteht sowohl im Bezug auf die Wahrnehmung der entfernten Einsatzumgebung durch den Operator als auch im Bezug auf die Steuerung einer potentiell großen Anzahl an Freiheitsgraden des mobilen Robotersystems. Beide Aspekte führen zu hohen Anforderungen an die kognitiven und motorischen Fähigkeiten des Operators, denen es durch geeignete technische Lösungen zu begegnen gilt. Zur Evaluation verschiedener Assistenzsysteme zur Teleoperationsunterstützung wurde eine mobile Roboterplattform aufgebaut, die mit Hilfe eines Roboterarms und eines Drei-Finger-Greifers manipulativ auf ihre Einsatzumgebung einwirken kann. Da der Roboter außerdem in der Lage ist, autonom zu navigieren, lassen sich über reine Teleoperation hinausgehende Interaktionskonzepte wie bspw. die leitende Kontrolle [4] eines Mensch-Roboter-Systems untersuchen. Zur Unterstützung der Wahrnehmung der entfernten Umgebung wurde der Roboter mit einem Stereokamerasystem ausgestattet, dessen technische Auslegung sich an den Eigenschaften des visuellen Systems des Menschen orientiert [5] und somit eine möglichst natürliche Wahrnehmung bietet. Ähnliche Arbeiten fokussieren oft auf die technische Realisierung oder auf maschinelles Sehen. Stereoskopie ermöglicht dem Operator eine Tiefenwahrnehmung, die zur Durchführung von Telemanipulationsaufgaben notwendig ist. Das Kamerasystem ist schwenk- und neigbar, ermöglicht eine servobasierte Nachführung der Augenvergenz und lässt sich bspw. durch Einstellung des Pupillenabstandes an verschiedene Nutzer anpassen. Zur Visualisierung der Videobilder werden stereoskopische Bildschirme und ein Head-Mounted Display eingesetzt. Aktuelle Arbeiten bzgl. der Visualisierung beschäftigen sich mit 3D-Laser-basierten Umgebungsmodellen als Ersatz für Videobilder und Augmented Reality. Um den Operator bei der Steuerung der verschiedenen Freiheitsgrade des Systems zu unterstützen, wurden Ansätze erprobt, die Freiheitsgrade an die Bewegung des Operators zu koppeln. Ein Beispiel dafür ist die Steuerung der Ausrichtung des Kamerasystems entsprechend der Kopfbewegung des Operators [6, 7]. Dies wurde hier für visuelle Suchaufgaben eingesetzt, die gegenüber anderen Anwendungen größere und häufigere Kopfbewegungen erfordern. Außerdem wurden verschiedene publizierte Realisierungsansätze bzgl. ihrer Auswirkungen auf den Menschen vergleichend untersucht. Ein weiteres Beispiel ist die Verfolgung der Handbewegung des Operators. Diese wird häufig zum Teachin automatischer Bewegungsabläufe eingesetzt, selten zur Teleoperation. Teilkomponenten haben in ersten Evaluationen ihre Überlegenheit gegenüber herkömmlichen Ansätzen unter Beweis gestellt [8]. Aktuelle Arbeiten in diesem Bereich beschäftigen sich mit symbolischen Ansätzen zur Gestensteuerung des Robotersystems. [1] DIN EN ISO 9241-210: Ergonomie der Mensch-System-Interaktion - Teil 210: Prozess zur Gestaltung gebrauchstauglicher interaktiver Systeme. Januar 2011 [2] Hegenberg, J.; Cramar, L. & Schmidt, L.: Task- and user-centered design of a human-robot system for gas leak detection: From requirements analysis to prototypical realization. In: Petrovic, I. & Korondi, P. (Hrsg.): 10th International IFAC Symposium on Robot Control (Dubrovnik, Kroatien 2012). Dubrovnik: International Federation of Automatic Control (IFAC), 2012, S. 793-798 [3] Schmidt, L.; Hegenberg, J. & Cramar, L.: Mensch-Roboter-System zur Gaslecksuche. In: atp edition - Automatisierungstechnische Praxis 53 (2011), Nr. 12, S. 56-65 [4] Sheridan, T. B.: Humans and Automation : System Design and Research Issues. New York: Wiley, 2002 [5] Hegenberg, J.; Cramar, L. & Schmidt, L.: Teleoperationsunterstützung über ein HMD und ein kopfbewegungsgesteuertes Stereokamerasystem auf einem entfernten mobilen Roboter. In: Bundesanstalt für Arbeitsschutz und Arbeitsmedizin (Hrsg.): Datenbrillen - Aktueller Stand von Forschung und Umsetzung sowie zukünftiger Entwicklungsrichtungen (Dortmund 2011). Dortmund: BAuA, 2012, S. 29-38 [6] Heuring, J. J. & Murray, D. W.: Visual head tracking and slaving for visual telepresence. In: Proceedings of the IEEE International Conference on Robotics and Automation (Minneapolis, USA 1996). Minneapolis: IEEE, 1996, S. 2908-2914 [7] Reilink, R., de Bruin, G., Franken, M., Mariani, M., Misra, S. & Stramigioli, S.: Endoscopic camera control by head movements for thoracic surgery. In: Proceedings of the 3rd IEEE, RAS and EMBS International Conference on Biomedical Robotics and Biomechatronics (Tokyo, Japan 2010). Tokyo: IEEE, 2010, S. 510–515 [8] Hegenberg, J.; Röllke, A.; Cramar, L. & Schmidt, L.: Ergonomische Gestaltung einer kopfbewegungsbasierten Steuerung eines Stereokamerasystems auf einem mobilen Roboter. In: Gesellschaft für Arbeitswissenschaft e. V. (Hrsg.): Gestaltung nachhaltiger Arbeitssysteme - Wege zur gesunden, effizienten und sicheren Arbeit : 58. Kongress der Gesellschaft für Arbeitswissenschaft (Kassel 2012). Dortmund: GfA-Press, 2012, S. 249-25
Atzmueller, Martin: Community and Pattern Analytics in Social Networks. In: 2013, L. (ed.) (2013)
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Habib, A. ; Bonow, G. ; Kroll, A. ; Hegenberg, J. ; Schmidt, L. ; Barz, T. ; Schulz, D.: Forschungsprojekt RoboGasInspector: Gaslecksuche mit autonomen mobilen Robotern. In: Technische Sicherheit vol. 3 (2013), Nr. 5, pp. 10–15
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Im Rahmen des Förderprogramms AUTONOMIK des Bundesministeriums für Wirtschaft und Technologie wurde in einem Konsortium aus neun Projektpartnern der Prototyp eines autonomen mobilen Roboters zur Gaslecksuche in ausgedehnten Industrieanlagen entwickelt. Anhand verschiedenartiger Sensorik zur Selbstlokalisation und Navigation wurde die autonome Beweglichkeit des Systems für beliebige Anlagen realisiert, mit der Option anhand von Teleoperation manuell in den Prozess einzugreifen. Ausgestattet mit Video- und Gasfernmesstechnik ist der Roboter imstande, Inspektionsaufgaben in Industrieanlagen durchzuführen, ohne in mögliche Gefahrenbereiche direkt einfahren zu müssen und ohne, dass ein Mensch vor Ort anwesend ist. Der Roboter kann zur routinemäßigen Inspektion von Anlagen oder zur gezielten Untersuchung spezifischer Anlagenteile eingesetzt werden. Dank der verwendeten Fernmesstechnik können auch Anlagenteile inspiziert werden, die aufgrund ihrer beschränkten Zugänglichkeit mittels herkömmlicher Messtechnik nur schwer zu inspizieren sind.
Henning, M. ; Neumann, S. ; Kahlert, A. ; Jonker, A. ; Volkamer, M.: Informatische Modellierung der Prinzipien des gesetzlichen Gestaltungsspielraums im Hinblick auf Wahlsysteme. In: Gesellschaft, Ö. C. (ed.) Abstraktion und Applikation, Tagungsband des 16. Internationalen Rechtsinformatik Symposiums (IRIS) vol. 16 (2013), pp. 277–284
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Seipel, Dietmar ; Köhler, Stefan ; Neubeck, Philipp ; Atzmueller, Martin:Mining Complex Event Patterns in Computer Networks.. In: Postproceedings of the 1st Workshop on New Frontiers in Mining Complex Patterns (NFMCP 2012, LNAI. Heidelberg, Germany : Springer Verlag, 2013
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Atzmueller, M. ; Behrenbruch, K. ; Hoffmann, A. ; Kibanov, M. ; Leimeister, J. M. ; Roßnagel, A. ; Macek, B. E. ; Mueller, J. ; et al.: Applying an Integrated Socio-Technical Design Method for Ubiquitous and Social Software – Experiences and Lessons Learned. In: ICSE (2013), Nr. 4, p. 126
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Henning, M. ; Budurushi, J. ; Volkamer, M.: Wählen in beliebigen Wahlbezirken: Ein neuer Wahlkanal. In: Gesellschaft, Ö. C. (ed.) Abstraktion und Applikation, Tagungsband des 16. Internationalen Rechtsinformatik Symposiums (IRIS) vol. 16 (2013), pp. 249–256
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Simic-Draws, D. ; Neumann, S. ; Kahlert, A. ; Richter, P. ; Grimm, R. ; Volkamer, M. ; Roßnagel, A.: Holistic and Law Compatible IT Security Evaluation: Integration of Common Criteria, ISO 27001/IT-Grundschutz and KORA,. In: IJISP (2013), Nr. 3, pp. 16–35
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Ackermann, L. ; Heußner, M. ; Schmidt, L.:Expertenevaluierung durch die Methode des lauten Denkens am Beispiel eines Online-Lernspiels.. In: Breiter, A. ; Rensing, C. (eds.): 11. E-Learning Fachtagung Informatik der Gesellschaft für Informatik e. V. (Bremen 2013), Lecture Notes in Informatics (LNI) - Proceedings. Bonn : Köllen, 2013, pp. 257–262
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Für den E-Learning-Anteil einer Weiterbildung wird ein browserbasiertes Lernspiel entwickelt, welches die Weiterbildungsteilnehmer im Selbststudium nutzen sollen. Die vorliegende Ausarbeitung stellt die Evaluation des Lernspiels durch ein interdisziplinäres Expertenteam dar. Durch die Methode des lauten Denkens konnten 108 Probleme des Lernspiels aufgedeckt werden.
Henning, M. ; Neumann, S. ; Kahlert, A. ; Richter, P. ; Jonker, H. ; Volkamer, M.: Modeling the German Legal Latitude Principles. In: Springer (ed.) International Conference on Electronic Participation vol. 5 (2013), pp. 49–56
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Skistims, H. ; Zirfas, J. ; Atzmüller, M. ; Scholz, C. ; Schulz, T.: Rechtliche Ausgestaltung sozialer Konferenzplattformen – Technische Lösungsansätze für datenschutzrechtliche Probleme. In: Zeitschrift für Datenschutz (ZD) (2013), p. 60
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Atzmueller, Martin:Social Behavior in Mobile Social Networks: Characterizing Links, Roles and Communities.. In: Chin, A. ; Zhang, D. (eds.): Mobile Social Networking: An Innovative Approach. Heidelberg, Germany : Springer Verlag, 2013
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Gierczak, Michael ; Söllner, Matthias ; Leimeister, Jan Marco:Exploring Business Models for IT-enabled Product-Service-Systems.. In: DIBME 2013 Pre-ECIS Workshop on the Digitization in Business Models and Entrepreneurship. Utrecht, The Netherlands, 2013
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Offering customer-oriented bundles of products and services – product-service systems (PSS) – can create additional customer value in comparison to offering all components individually. PSS allow providers to create a long-term customer relationship, market success, and has the potential to support differentiation from competitors. Offering bundles solving customer problems will have several effects on internal and external activities, and thus the providers’ business model (BM). However, until now, theoretical and empirical insights regarding this impact are sparse. Therefore, we aim to explore the impact of the rise of PSS on the providers BMs, especially focusing on how value is created. This helps IT decision-makers to identify appropriate IT-enabled PSS their businesses could provide and subsequent changes that need to be made in their BM. Consequently, businesses are supported in the innovation process of their products. To achieve this goal, we plan to review at least 20 successful BMs of the most valuable enterprise tech companies in the world. We focus on IT-enabled PSS, since IT is a key driver of PSS, economic growth and profitability. In this researchin-progress paper, we present the theoretical foundations, develop a definition of BMs for ITenabled PSS, and provide details concerning the methodology of our planned review.
Atzmueller, M. ; Chin, A. ; Helic, D. ; Hotho, A. (eds.):Ubiquitous Social Media Analysis, Lecture Notes in Computer Science. vol. 8329. Heidelberg, Germany : Springer Verlag, 2013
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Mueller, Juergen ; Doerfel, Stephan ; Becker, Martin ; Hotho, Andreas ; Stumme, Gerd:Tag Recommendations for SensorFolkSonomies.. In: Recommender Systems and the Social Web Workshop at 7th ACM Conference on Recommender Systems, RecSys 2013, Hong Kong, China -- October 12-16, 2013. Proceedings : ACM, 2013. — accepted for publication, p. New York, NY, USA
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With the rising popularity of smart mobile devices, sensor data-based applications have become more and more popular. Their users record data during their daily routine or specifically for certain events. The application WideNoise Plus allows users to record sound samples and to annotate them with perceptions and tags. The app is being used to document and map the soundscape all over the world. The procedure of recording, including the assignment of tags, has to be as easy-to-use as possible. We therefore discuss the application of tag recommender algorithms in this particular scenario. We show, that this task is fundamentally different from the well-known tag recommendation problem in folksonomies as users do no longer tag fix resources but rather sensory data and impressions. The scenario requires efficient recommender algorithms that are able to run on the mobile device, since Internet connectivity cannot be assumed to be available. Therefore, we evaluate the performance of several tag recommendation algorithms and discuss their applicability in the mobile sensing use-case.
Hartmann, M. ; Bretschneider, U. ; Leimeister, J. M.:Patients as innovators - The development of innovative ideas with the Ideenschmiede.. In: Wirtschaftsinformatik Konferenz (WI). Leipzig, Germany, 2013. — 372
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Hartmann, M.:Entwicklung eines Vorgehensmodells zum Erreichen einer kritischen Nutzermasse in Ideen-Communities.. In: Wirtschaftsinformatik Konferenz Doctoral Consortium (WI DC). Leipzig, Germany, 2013
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Henning, M. ; Budurushi, J. ; Volkamer, M.: Vote Casting in Any Preferred Constituency - A New Voting Channel. In: Springer (ed.) E-Voting and Identity (VoteID) (2013), pp. 61 – 75
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Georgi, Christian ; Peters, Christoph: Multidimensionale Vorteilhaftigkeitsbetrachtung von Dienstleistungen am Beispiel Telemedizin. In: CONTROLLING – Zeitschrift für erfolgsorientierte Unternehmenssteuerung vol. 25 (2013), Nr. 10, pp. 528–535
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Söllner, Matthias ; Behrenbruch, Kay ; Hoffmann, Holger ; Leimeister, Jan Marco:Vertrauenswürdige Gestaltung von ubiquitären Systemen – Potentiale des Einsatzes von Methoden des NeuroIS.. In: Brandenburg, E. ; Doria, L. ; Gross, A. ; Günzler, T. ; Smieszek, H. (eds.): 10. Berliner Werkstatt Mensch-Maschine-Systeme. Berlin, Germany, 2013, pp. 127–135
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Roßnagel, Alexander ; Buchmann, J. ; Capurro, R. ; Löw, M. ; et al. ; acatech (ed.):Privatheit im Internet – Chancen wahrnehmen, Risiken einschätzen, Vertrauen gestalten, Acatech Position : Springer Vieweg, 2013
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Atzmueller, Martin ; Hilgenberg, Katy:SDCF - A Sensor Data Collection Framework for Social and Ubiquitous Environments: Challenges and First Experiences in Sensor-based Social Networks (Abstract).. In: Proc. Sunbelt XXXIII: Annual Meeting of the International Network for Social Network Analysis. Hamburg, Germany : INSNA, 2013
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Blohm, I. ; Leimeister, J. M. ; Krcmar, H.:Managing Open Innovation Communities - Development and Test of an Innovation Community Scorecard.. In: Garcia Martinez, M. (ed.): Open innovation in the food and beverage industry: Concepts and case studies.. Woodhead, Cambridge, UK : Woodhead Publishing, 2013. — 363, pp. 216–234
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Richter, Philipp: Die Wahl ist geheim... so what? Big Data Mining im US-Wahlkampf. Und hier?, DÖV 2013, 961.. In: DÖV (ed.) (2013), p. 961
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Richter, P. ; Simić-Draws, D. ; Neumann, S. ; Kahlert, A. ; Grimm, R. ; Volkamer, M. ; Roßnagel, A.: Holistic and Law Compatible IT Security Evaluation: Integration of Common Criteria. In: 27001/IT-Grundschutz, I. ; KORA (eds.) International Journal of Information Security and Privacy (IJISP) (2013), pp. 16–35
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Richter, P. ; Nebel, M. ; Roßnagel, A.: Besserer Internetdatenschutz für Europa – Vorschläge zur Spezifizierung der Datenschutz-Grundverordnung. In: Zeitschrift für Datenschutz (2013), Nr. 3, pp. 103–108
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Richter, P. ; Bräunlich, K. ; Grimm, R. ; Roßnagel, A.: Sichere Internetwahlen - Ein rechtswissenschaftlich-informatisches Modell. In: Baden-Baden (ed.) (2013)
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Bodden, E. ; Rasthofer, S. ; Richter, P. ; Roßnagel, A.: Schutzmaßnahmen gegen datenschutzunfreundliche Smartphone-Apps - Technische Möglichkeiten und rechtliche Zulässigkeit des Selbstdatenschutzes bei Apps. In: DuD (2013), pp. 720–725
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Richter, P. ; Bodden, E. ; Rasthofer, S. ; Roßnagel, A.: Schutzmaßnahmen gegen datenschutzunfreundliche Smartphone-Apps - Technische Möglichkeiten und rechtliche Zulässigkeit des Selbstdatenschutzes bei Apps, DuD 2013, 720 (zusammen mit ).. In: DuD (2013), Nr. 720
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Blohm, Ivo ; Leimeister, Jan Marco ; Krcmar, Helmut: Crowdsourcing: How to Benefit from (Too) Many Great Ideas. In: MIS Quarterly Executive vol. 12 (2013), Nr. 4, pp. 199–211
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Blohm, I. ; Leimeister, J. M. ; Gebert, M.:Crowdfunding-Studie 2013/14. Analysen, Perspektiven und Erfolgsfaktoren innovativer Unternehmens- und Projektfinanzierungen. Berlin : epubli, 2013
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Scholz, Christoph ; Atzmueller, Martin ; Barrat, Alain ; Cattuto, Ciro ; Stumme, Gerd:New Insights and Methods For Predicting Face-To-Face Contacts.. In: Proc. 7th Intl. AAAI Conference on Weblogs and Social Media. Palo Alto, CA, USA : AAAI Press, 2013
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Blohm, I. ; Leimeister, J. M.: Gamification. Design of IT-Based Enhancing Services for Motivational Support and Behavioral Change. In: Business & Information Systems Engineering (BISE). DOI: 10.1007/s12599-013-0273-5 (2013), Nr. 5 (4), pp. 275–278
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Doerfel, Stephan ; Hotho, Andreas ; Kartal-Aydemir, Aliye ; Roßnagel, Alexander ; Stumme, Gerd:Informationelle Selbstbestimmung Im Web 2.0 Chancen Und Risiken Sozialer Verschlagwortungssysteme : Vieweg + Teubner Verlag, 2013 — ISBN 9783642380556 3642380557
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Doerfel, Stephan ; Jäschke, Robert:An analysis of tag-recommender evaluation procedures.. In: Proceedings of the 7th ACM conference on Recommender systems, RecSys ’13. Hong Kong, China : ACM, 2013 — ISBN 978-1-4503-2409-0, pp. 343–346
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Since the rise of collaborative tagging systems on the web, the tag recommendation task -- suggesting suitable tags to users of such systems while they add resources to their collection -- has been tackled. However, the (offline) evaluation of tag recommendation algorithms usually suffers from difficulties like the sparseness of the data or the cold start problem for new resources or users. Previous studies therefore often used so-called post-cores (specific subsets of the original datasets) for their experiments. In this paper, we conduct a large-scale experiment in which we analyze different tag recommendation algorithms on different cores of three real-world datasets. We show, that a recommender's performance depends on the particular core and explore correlations between performances on different cores.
Blohm, I. ; Leimeister, J. M.: Gamification. Gestaltung IT-basierter Zusatzdienstleistungen zur Motivationsunterstützung und Verhaltensänderung. In: WIRTSCHAFTSINFORMATIK. DOI: 10.1007/s11576-013-0368-0 vol. 55 (2013), Nr. 4, pp. 275–278
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Blohm, I. ; Kahl, V. ; Leimeister, J. M. ; Krcmar, H.:Enhancing Absorptive Capacity in Open Innovation Communities: A synthetic view of absorptive capacity and open innovation.. In: Leimeister, J. M. ; Rajagopalan, B. (eds.): Virtual Communities. 1. ed.. Armonk, NY, USA : ME. Sharpe, 2013. — 362, pp. 85–100
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Bitzer, Philipp ; Weiß, Frank ; Leimeister, Jan Marco:Towards a Reference Model for a Productivity-optimized Delivery of Technology Mediated Learing Services.. In: Eighth International Conference on Design Science Research in Information Systems and Technology (DESRIST). Helsinki, Finland, 2013
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Radziwill, M. ; Kniewel, R. ; Schmidt, L.:Requirements Framework for a Unified Information and Reservation System Enabling Intermodal Mobility.. In: International Scientific Conference on Mobility and Transport: ITS for Connected Mobility (München 2013). München : Institut für Verkehrswesen der Technischen Universität München, 2013, pp. 1–10
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Especially in urban areas, mobility concepts that only take into account individual modes of transport are reaching spatial and ecological limits [6]. In this regard, the linkage of individual modes of transport in form of intermodal services is considered as sustainable alternative. However, Current intermodal approaches are usually designed for local population. Since urban tourism shows high growth rates with a private transport share of nearly 70%, touristic traffic does not represent an underestimated proportion of urban traffic [3]. For this reason, within the "FREE" research project, an intermodal service especially for urban tourists will be developed, which will be bookable together with accommodations, arrivals and departures in the pre-trip phase of the journey. To support tourists during trips in foreign environments, an application for mobile devices will also be developed. To provide a requirements framework as part of a user-centred design process according to DIN EN ISO 9241-210 [12], 26 mobile applications (public transport, bike- and car sharing and intermodal services) and 12 web-based booking systems (providing the reservation of accommodations together with arrival and departure options) were analysed concerning their functional standard and usability. It was found that web-based booking systems provide uniformed templates for booking processes of accommodations, arrival and departure modules. In terms of further bookings no consistent pattern was found. For mobile applications, it was found that in addition to functions concerning orientation and navigation, the purchase of tickets respectively the reservation of vehicles is provided. To support the user in the mobile context of use, context-sensitive reminder and notification features are also provided. With the analysis of user feedback could be determined that today’s systems show negative impact on user-experience by providing unreliable real-time information and by access to personal user data. To take into account the touristic background of "FREE", furthermore a persona based scenario workshop with 9 experts (3 tourism experts, 3 traffic planners, 2 human factors experts and one provider of rental bikes) was conducted. The findings uncovered that in contrast to current intermodal systems, a touristic approach should supply uniformed access to all modes of transport as well as predefined routes linked with touristic sights.
Riedl, C. ; Blohm, I. ; Leimeister, J. M. ; Krcmar, H.: The Effect of Rating Scales on Decision Quality and User Attitudes in Online Innovation Communities. In: International Journal of Electronic Commerce (IJEC) (2013), Nr. 17(3), pp. 7–36. — 359
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Roßnagel, A ; Nebel, M. ; Richter, P.: Besserer Internetdatenschutz für Europa - Vorschläge zur Spezifizierung der DS-GVO. In: ZD (2013), p. 103
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Domhardt, M. ; Schmidt, L.:Modellierung der Biomechanik des Hand-Arm-Komplexes für die Touchscreen-Interaktion.. In: Gesellschaft für Arbeitswissenschaft e. V. (ed.): Chancen durch Arbeits-, Produkt- und Systemgestaltung - Zukunftsfähigkeit für Produktions- und Dienstleistungsunternehmen: 59. Kongress der Gesellschaft für Arbeitswissenschaft (Krefeld 2013). Dortmund : GfA-Press, 2013, pp. 229–232
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Ausmaß und Auswirkungen der Belastung des Hand-Arm-Systems durch die Interaktion mit stationären Touchscreens sind bisher weder ausreichend geklärt, noch finden sich Vorgaben, um diese Belastung im Gestaltungsprozess solcher Systeme berücksichtigen zu können. Daher wurde ein computergestütztes Vorgehen zur systematischen biomechanischen Analyse und Bewertung dieser Art der Touchscreen-Interaktion entwickelt. Das Verfahren erlaubt die Identifikation der beanspruchten Muskelgruppen und die ergonomische Beurteilung der Körperhaltung während des Bewegungsablaufs sowie die Berechnung des Ausmaßes der Muskelkräfte durch die notwendige Haltungsarbeit. Es konnte mit Hilfe des Verfahrens gezeigt werden, dass die Interaktion mit stationären Touchscreens fast ausschließlich den Deltamuskel beansprucht.
Buchmann, J. ; Nebel, M. ; Roßnagel, A. ; Shirazi, F. ; Simo, H. ; Waidner, M.: Personal Information Dashboard: Putting the Individual Back in Control. In: Hildebrandt ; O’Hara ; Waidner (eds.) Digital Enlightenment Yearbook 2013 (2013), pp. 139 – 164
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Braun, R. ; Schmidt, L.:Benutzerorientierte Entwicklung eines für spezifische Nutzergruppen adaptierbaren, einachsigen, teilautonomen Elektrofahrzeugs.. In: Verband der Elektrotechnik Elektronik Informationstechnik e. V. (ed.): Lebensqualität im Wandel von Demografie und Technik: 6. Deutscher AAL-Kongress (Berlin 2013). Berlin : VDE-Verlag, 2013, pp. 321–325
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Im Sinne einer barrierefreien Umwelt besteht die Notwendigkeit, jegliche öffentlichen Räume auch abseits infrastrukturell gut erreichbarer Gebiete so zu erschließen, dass die Teilhabe und Mobilität von Personengruppen mit unterschiedlichen physischen und motorischen Fähigkeiten sichergestellt werden kann. Doch nicht für jeden Nutzungskontext bestehen entsprechende Mobilitätskonzepte, um dies sicherzustellen. Im Beitrag werden erste Forschungsergebnisse des Einsatzes eines menschzentrierten, iterativen Gestaltungsprozesses zur Erforschung und Entwicklung eines für spezifische Nutzergruppen adaptierbaren, einachsigen, teilautonomen Elektrofahrzeugs vorgestellt, das außerhalb des öffentlichen Straßenverkehrs zum Einsatz kommen soll. Im Mittelpunkt stehen dabei das methodische Vorgehen einer nutzer- und aufgabenorientierten Anforderungsanalyse sowie das daraus abgeleitete Nutzungskonzept der Mensch-Maschine-Schnittstellen zur Fahrzeugführung sowie des Informations- und Navigationssystems. Weiter wird das methodische Vorgehen zur Evaluation und der geplanten Umsetzung des aktuellen Entwicklungsstands kurz skizziert.
Braun, R. ; Hegenberg, J. ; Cramar, L. ; Schmidt, L.:Gebrauchstauglichkeit verschiedener Eingabegeräte zur Teleoperation eines Manipulators bei komplexen Bewegungen.. In: Gesellschaft für Arbeitswissenschaft e. V. (ed.): Chancen durch Arbeits-, Produkt- und Systemgestaltung - Zukunftsfähigkeit für Produktions- und Dienstleistungsunternehmen: 59. Kongress der Gesellschaft für Arbeitswissenschaft (Krefeld 2013). Dortmund : GfA-Press, 2013, pp. 413–416
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Im Beitrag wird die telemanipulative Durchführung einer Handhabungsaufgabe anhand verschiedener Steuerungen betrachtet. Anwendungskontext ist ein mobiler Roboter in einer großflächigen Industrieanlage, der aus einer Leitwarte teleoperiert werden kann. Dazu wurde als Versuchsaufgabe das Öffnen und Schließen eines Ventils zur Entwässerung einer Prozessanlage im Labor nachgestellt. Ziel der hier vorgestellten Untersuchung war es, durch eine vergleichende Evaluation die Gebrauchstauglichkeit unterschiedlicher Eingabegeräte zu erheben. Dazu wurde die Steuerung durch eine Tatstatur, eine 3D-Maus und einen Flystick miteinander verglichen.
Roßnagel, Alexander:Kommentierung von §§ 113a und 113b TKG.. In: Geppert, M. ; Schütz, R. (eds.): Beck´scher TKG-Kommentar. 4. ed. : Beck, 2013, pp. 2511–2545
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Roth-Berghofer, T. ; Oussena, S. ; Atzmueller, M. (eds.):Proceedings of the 2013 International Smart University Workshop (SmartU 2013). Annecy, France : CONTEXT 2013, 2013
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Buch, M. ; Gebauer, L.:Maßnahmenkatalog zur Vertrauenserhöhung im Cloud Computing.. In: Working Paper Series, Nr. 4. Kassel, Germany, 2013
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Buchmann, J. ; Capurro, R. ; Löw, M. ; Müller, G. ; Pretschner, A. ; Roßnagel, A. ; Waidner, M. ; Eiermann, K. ; et al. ; Buchmann, J. (ed.):Internet Privacy – Options for adequate realisation : Springer, 2013
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Buchmann, J. ; Capurro, R. ; Löw, M. ; Roßnagel, A. ; et al. ; Buchmann, J. (ed.):Internet Privacy – Options for Adequate Realisation, acatech study : aca, 2013
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Roßnagel, A.:Datenschutz in Social Networks.. In: Holzer, N. ; Ory, S. ; Engel, W. (eds.): Festschrift zu Ehren von W. Thaenert, 2013, pp. 283–296
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Roßnagel, A.:Internet (Telemedien).. In: Ehlers, D. ; Fehling, M. ; Pünder, H. (eds.): Besonderes Verwaltungsrecht. vol. 2: Planungs-, Bau- und Straßenrecht, Umweltrecht, Gesundheitsrecht, Medien- und Informationsrecht. 3. ed., 2013, pp. 1126–1147.
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Bonow, G. ; Cramar, L. ; Hegenberg, J. ; Kroll, A. ; Ordonez Müller, A. ; Schmidt, L. ; Soldan, S.: RoboGasInspector. In: Schlussbericht des BMWi-Projektes, Schlussbericht des BMWi-Projektes.. Fachgebiet Mensch-Maschine-Systemtechnik und Fachgebiet Mess- und Regelungstechnik der Universität Kassel (2013)
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Im vorliegenden Dokument wurden die Ergebnisse und Erkenntnisse aus dem Forschungsprojekt RoboGasInspector vorgestellt. Es wurde gezeigt, dass eine Durchführung von Inspektionen in industrieller Umgebung mittels autonomer mobiler Roboter prinzipiell möglich ist. Durch den Einsatz von optischer (Gas-)Fernmesstechnik konnte gezeigt werden, dass der Anlagenfahrer bei der routinemäßigen Überwachung der Anlagenkomponenten entlastet werden kann und sich die Anlagensicherheit durch kürzere Inspektionsintervalle und durch die zusätzliche sensorische Überwachung der Anlagenkomponenten verbessern lässt. In mehreren Tests wurde mit dem Prototyp unter realen Bedingungen die zuverlässige Inspektion, Mobilität und Gasleckortung an Rohrbrücken, Pipelines und Armaturen unter moderaten Wetterbedingungen demonstriert. Für die Produktisierung sind noch mehrere technische Arbeiten auf den Gebieten des Ex-Schutzes, Wetterfestigkeit, Mobilität, Sensorik sowie Softwareentwicklungsarbeiten (z. B. nach ISO/IEC 9126) notwendig. Neben den technischen Fragestellungen müssen aber auch die rechtlichen Fragestellungen für den kommerziellen Einsatz bezgl. des autonomen Betriebs (z. B. Produkthaftung, Gewährleistung, etc.) geklärt werden. Nicht destotrotz wurde durch das Projekt RoboGasInspector eine Grundlage für eine Produktisierung gelegt und Möglichkeiten zur Verbesserung der Wirtschaftlichkeits- und Risikobewertung aufgezeigt.
Roßnagel, A. (ed.):Beck’scher Kommentar zum Recht der Telemediendienste, Kommentar zum TMG, SigG, SigV, JMStV, BGB (Auszüge), VwVfG (Auszüge), ZPO (Auszüge). München : Beck, 2013
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Roßnagel, A.: Pro & Contra: Videoüberwachung im öffentlichen Raum?. In: Zeitschrift für Rechtspolitik (2013), Nr. 4, p. 126
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Roßnagel, A.: „Die Gerichte haben gescannte Dokumente als Beweismittel grundsätzlich akzeptiert“. In: Neue Juristische Wochenschrift - Aktuell (2013), Nr. 51, p. 12
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Roßnagel, Alexander ; Moser-Knierim, Antonie ; Schweda, Sebastian:Interessenausgleich im Rahmen der Vorratsdatenspeicherung – Analysen und Empfehlungen, Der elektronische Rechtsverkehr. vol. 28 : Nomos, 2013
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Roßnagel, Alexander ; Nebel, Maxi ; Grigorjew, Olga ; Jandt, Silke:BSI Technische Richtlinie 03138 – Ersetzendes Scannen, Anlage R.
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Roßnagel, A.: Big Data - Small Privacy ?. In: Zeitschrift für Datenschutz (2013), Nr. 11, pp. 562–567
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Domhardt, M. ; Schmidt, L.:Nutzerbasierte Evaluation des Prototyps einer massentauglichen Ladestation für Elektromobile.. In: Gesellschaft für Arbeitswissenschaft e. V. (ed.): Chancen durch Arbeits-, Produkt- und Systemgestaltung - Zukunftsfähigkeit für Produktions- und Dienstleistungsunternehmen: 59. Kongress der Gesellschaft für Arbeitswissenschaft (Krefeld 2013). Dortmund : GfA-Press, 2013, pp. 665–668
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Zur nutzerbasierten Evaluation einer Ladestation für Elektromobile wurden die Aspekte der Gebrauchstauglichkeit und Akzeptanz mit Hilfe einer Stichprobe bewertet, die in Bezug auf Geschlecht, Alter, Händigkeit, Technikaffinität und Wohnortklassifikation soweit möglich repräsentativ für die Grundgesamtheit und dadurch sehr heterogen war. Die Ergebnisse zeigen, dass das Laden eines Elektromobils für die Nutzer ein neuartiger Vorgang ist, der nach ei-nem Lernprozess effizient durchgeführt werden kann. Zudem konnte ein signifikanter Zusammenhang zwischen der Wohnortsituation und jeweils den beiden Variablen Zufriedenstellung und Akzeptanz festgestellt werden. So waren städtisch Wohnende zufriedener mit der Benutzung der Ladestation und wiesen eine höhere Akzeptanz auf.
Domhardt, M. ; Schmidt, L.:Ergonomischer Schriftgrad für elektronische Anzeigen.. In: Boll, S. ; Maaß, S. ; Malaka, R. (eds.): Mensch & Computer 2013: Interaktive Vielfalt (Bremen 2013). München : Oldenbourg, 2013, pp. 231–240
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Bei der Gestaltung von grafischen Benutzeroberflächen sind Schriftart und Schriftgrad von Texten, wie z.B. für Schaltflächenbeschriftungen, Hilfetexten oder Tooltipps, geeignet festzulegen. Verfügbare Empfehlungen aus Normen oder Fachliteratur führen zu einer Angabe der Zeichenhöhe in Millimetern statt Punkt und lassen die typografischen Besonderheiten sowie den softwaretechnischen Einfluss gänzlich unberücksichtigt. Der Lösungsansatz für ein einfach anzuwendendes Berechnungsverfahren zur Festlegung des Schriftgrades umfasste die Recherche der relevanten Grundlagen in den Bereichen Ergonomie, Typografie sowie Soft- und Hardware, aus denen Faktoren, die den Schriftgrad beeinflussen, identifiziert werden konnten. Aus diesen Faktoren konnte schrittweise eine Berechnung hergeleitet werden, die sich abschließend vereinfachen ließ. Die Anwendbarkeit und Übertragbarkeit der Berechnung konnte an einem Anwendungsbeispiel aus der Praxis nachgewiesen werden.
Atzmueller, Martin ; Hilgenberg, Katy:Towards Capturing Social Interactions with SDCF: An Extensible Framework for Mobile Sensing and Ubiquitous Data Collection.. In: Proc. 4th International Workshop on Modeling Social Media (MSM 2013), Hypertext 2013. New York, NY, USA : ACM Press, 2013
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Fähling, Jens ; Blohm, Ivo ; Leimeister, Jan Marco ; Krcmar, Helmut ; Fischer, Jan:Pico-Jobs as an Open Innovation Tool for Utilising Crowdsourcing.. In: Eriksson Lundström, J. S. Z. ; Wiberg, M. ; Hrastinski, S. ; Edenius, M. ; Ågerfalk, P. J. (eds.): Managing Open Innovation Technologies. Berlin, Heidelberg (ISBN: 978-3-642-31649-4) : Springer, 2013, pp. 199–214
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Behrenbruch, K. ; Söllner, M. ; Leimeister, J. M. ; Schmidt, L.:Understanding Diversity - The Impact of Personality on Technology Acceptance.. In: Kotzé, P. ; Marsden, G. ; Lindgaard, G. ; Wesson, J. ; Winckler, M. (eds.): Human-Computer Interaction: 14th IFIP TC 13 International Conference (Kapstadt 2013), Part IV, Lecture Notes in Computer Science. Springer : Berlin, 2013, pp. 306–313
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Technology is becoming increasingly automated, aiming to ease the life of its users. However, besides the advantages of this trend, users are also faced with increasing risks, e.g., regarding their privacy. Examples are seamless online payments that come with the requirement to provide sensitive, e.g., credit card information, or social networks trying to elicit private information for its users. Research on technology acceptance identified two important factors for the individual decision to accept such kinds of risk: trust and personality traits. In this paper we present a model that integrates research findings for personality traits and for trust in the context of technology acceptance. We show that specific personality traits have a distinct direct or moderating effect. We, e.g., found that two personality traits moderate the relationship between perceived ease of use and intention to use. This moderation could explain the inconsistent findings on this relationship in prior research.
Behrenbruch, K. ; Schmidt, L.:Gebrauchstauglichkeit im Labor objektiv evaluieren.. In: Brandenburg, E. D. ; Smieszek, H. (eds.): Grundlagen und Anwendungen der Mensch-Maschine-Interaktion: 10. Berliner Werkstatt Mensch-Maschine-Systeme (Berlin 2013). Berlin : Universitätsverlag der TU Berlin, 2013, pp. 117–125
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Dieser Beitrag beschreibt die Ergebnisse von zwei Experimenten im Usability Labor unter Einsatz von Eye-Tracking, videobasierter Emotionserkennung bezogen auf den Gesichtsausdruck sowie der Messung der elektrodermalen Aktivität. Die Auswertung der erhobenen Daten konzentriert sich auf die Integration der drei unterschiedlichen Datenquellen und die Bildung von aussagekräftigen Kennwerten im Hinblick auf die Beurteilung der Gebrauchstauglichkeit von graphischen Benutzungsoberflächen. Im Rahmen des ersten Experimentes wird der Nachweis geführt, dass die gebildeten Kennwerte die Gebrauchstauglichkeit einer Benutzungsoberfläche abbilden und die Identifikation von kritischen Interaktionselementen ermöglichen. Das zweite Experiment untersucht die Anwendbarkeit dieser Ergebnisse im Rahmen der Evaluation der ubiquitären Software MyGroup.
Becker, Martin ; Mueller, Juergen ; Hotho, Andreas ; Stumme, Gerd:A Generic Platform for Ubiquitous and Subjective Data.. In: 1st International Workshop on Pervasive Urban Crowdsensing Architecture and Applications, PUCAA 2013, Zurich, Switzerland -- September 9, 2013. Proceedings. New York, NY, USA : ACM, 2013, pp. 1175–1182
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An increasing number of platforms like Xively or ThingSpeak are available to manage ubiquitous sensor data enabling the Internet of Things. Strict data formats allow interoperability and informative visualizations, supporting the development of custom user applications. Yet, these strict data formats as well as the common feed-centric approach limit the flexibility of these platforms. We aim at providing a concept that supports data ranging from text-based formats like JSON to images and video footage. Furthermore, we introduce the concept of extensions, which allows to enrich existing data points with additional information, thus, taking a data point centric approach. This enables us to gain semantic and user specific context by attaching subjective data to objective values. This paper provides an overview of our architecture including concept, implementation details and present applications. We distinguish our approach from several other systems and describe two sensing applications namely AirProbe and WideNoise that were implemented for our platform.
Becker, Martin ; Caminiti, Saverio ; Fiorella, Donato ; Francis, Louise ; Gravino, Pietro ; Haklay, Mordechai (Muki) ; Hotho, Andreas ; Loreto, Vittorio ; et al.: Awareness and Learning in Participatory Noise Sensing. In: PLOS ONE vol. 8 (2013), Nr. 12, p. e81638
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The development of ICT infrastructures has facilitated the emergence of new paradigms for looking at society and the environment over the last few years. Participatory environmental sensing, i.e. directly involving citizens in environmental monitoring, is one example, which is hoped to encourage learning and enhance awareness of environmental issues. In this paper, an analysis of the behaviour of individuals involved in noise sensing is presented. Citizens have been involved in noise measuring activities through the WideNoise smartphone application. This application has been designed to record both objective (noise samples) and subjective (opinions, feelings) data. The application has been open to be used freely by anyone and has been widely employed worldwide. In addition, several test cases have been organised in European countries. Based on the information submitted by users, an analysis of emerging awareness and learning is performed. The data show that changes in the way the environment is perceived after repeated usage of the application do appear. Specifically, users learn how to recognise different noise levels they are exposed to. Additionally, the subjective data collected indicate an increased user involvement in time and a categorisation effect between pleasant and less pleasant environments.
Evers, Christoph ; Kniewel, Romy ; Geihs, Kurt ; Schmidt, Ludger: The user in the loop: Enabling user participation for self-adaptive applications. In: Future Generation Computer Systems (2013)
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Abstract Future computing systems must adjust to the user’s situations, habits, and intentions. Self-adaptive applications autonomously adapt to changing contexts without asking the user. However, the self-adaptive behaviour lacks of success if it does not correspond to the user’s personal interaction habits and intentions, particularly for complex scenarios with a high degree of user interaction. Concerning the interaction design, such adaptations can be irritating and distracting for the user if they do not match the current situation. In this article we provide a solution how to integrate the user in the self-adaptation feedback loop. The user will be able to influence the adaptation behaviour at run-time and in the long term by setting individual preferences. Consequently, we achieve a harmonization between full application autonomy and user control. We implemented our generic concepts by extending an existing self-adaptation middleware with capabilities to respect the user’s application focus and interaction behaviour. A notification-based solution for user participation has been evaluated in a substantial user study with 62 participants. Although participants perceived much better control with our solution, the study made clear that notification design is specific for each adaptation type.
Scholz, Christoph ; Atzmueller, Martin ; Kibanov, Mark ; Stumme, Gerd:How Do People Link? Analysis of Contact Structures in Human Face-to-Face Proximity Networks.. In: Advances in Social Networks Analysis and Mining (ASONAM), 2013 International Conference on. Los Alamitos, CA, USA, 2013
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Understanding the process of link creation is rather important for link prediction in social networks. Therefore, this paper analyzes contact structures in networks of face-to-face spatial proximity, and presents new insights on the dynamic and static contact behavior in such real world networks. We focus on face-to-face contact networks collected at different conferences using the social conference guidance system Conferator. Specifically, we investigate the strength of ties and its connection to triadic closures in face-to-face proximity networks. Furthermore, we analyze the predictability of all, new and recurring links at different points of time during the conference. In addition, we consider network dynamics for the prediction of new links.
Fähling J. ; Leimeister, J. M. ; Yetton, P. ; Krcmar, H.: Managing an IT carve-out at a multi-national enterprise teaching case description. In: Journal of Information Technology Teaching Cases (DOI: 10.1057/jittc.2013.10) (2013), Nr. 3, pp. 106–110 (DOI: 10.1057/jittc.2013.10)
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Atzmueller, M. ; Scholz, C. (eds.):Proceedings of the 2013 International Workshop on Mining Ubiquitous and Social Environments (MUSE 2013). Prague, Czech Republic : ECML/PKDD 2013, 2013
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Ebel, Philipp ; Zogaj, Shkodran ; Bretschneider, Ulrich ; Leimeister, Jan Marco:Look at Me - Using Signaling Theory to Design Profile Functionalities for Virtual Ideas Communities.. In: R&D Management Conference. Manchester, United Kingdom, 2013
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Gebauer, Lysann ; Söllner, Matthias ; Leimeister, Jan Marco:Towards Understanding the Formation of Continuous IT Use.. In: International Conference on Information Systems (ICIS). Milano, Italy, 2013
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Schuldt, M: ; Roßnagel, A.: Die Simulationsstudie als Evaluationsmethode sozialverträglicher Technikgestaltung. In: 10. Berliner Werkstatt Mensch-Maschine-Systeme - Grundlagen und Anwendungen der Mensch-Maschine-Interaktion (2013)
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Schulz, Thomas ; Skistims, Hendrik ; Zirfas, Julia ; Atzmueller, Martin ; Scholz, Christoph: Rechtliche Ausgestaltung sozialer Konferenzplattformen. In: ZD vol. 2 (2013), pp. 60–65
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Atzmueller, Martin ; Mueller, Juergen:Subgroup Analytics and Interactive Assessment on Ubiquitous Data.. In: Proceedings of the International Workshop on Mining Ubiquitous and Social Environments (MUSE2013). Prague, Czech Republic, 2013
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Atzmueller, Martin ; Lemmerich, Florian: Exploratory Pattern Mining on Social Media using Geo-References and Social Tagging Information. In: International Journal of Web Science (Special Issue on Social Web Search and Mining) vol. 2 (2013), Nr. 1/2
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Atzmueller, Martin ; Kibanov, Mark ; Scholz, Christoph ; Stumme, Gerd: Conferator - a Social System for Conference and Contact Management, INFORMATIK 2013 (2013)
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Niebler, Thomas ; Singer, Philipp ; Benz, Dominik ; Körner, Christian ; Strohmaier, Markus ; Hotho, Andreas:How Tagging Pragmatics Influence Tag Sense Discovery in Social Annotation Systems.. In: Serdyukov, P. ; Braslavski, P. ; Kuznetsov, S. ; Kamps, J. ; Rüger, S. ; Agichtein, E. ; Segalovich, I. ; Yilmaz, E. (eds.): Advances in Information Retrieval, Lecture Notes in Computer Science. vol. 7814 : Springer Berlin Heidelberg, 2013 — ISBN 978-3-642-36972-8, pp. 86–97
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The presence of emergent semantics in social annotation systems has been reported in numerous studies. Two important problems in this context are the induction of semantic relations among tags and the discovery of different senses of a given tag. While a number of approaches for discovering tag senses exist, little is known about which
Engel, Sebastian ; Kratzsch, Claudia ; David, Klaus:Car2Pedestrian-Communication: Protection of Vulnerable Road Users Using Smartphones.. In: Fischer-Wolfarth, J. ; Meyer, G. (eds.): Advanced Microsystems for Automotive Applications 2013: Smart Systems for Safe and Green Vehicles. Heidelberg, Germany : Springer International Publishing, 2013 — ISBN 978-3-319-00476-1, pp. 31–41
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The protection of vulnerable road users, like pedestrians and bicyclists, and the communication between vehicles and their environment, which is called Car2X-Communication, are two scopes in the development of the automotive industry that have gained much interest in the last years. This paper links together both topics by presenting a concept for the communication between vehicles and vulnerable road users, called Car2Pedestrian-Communication. A system architecture is presented that uses smartphones for the detection of vulnerable road users and for the transmission of data between the vehicle and the pedestrian. Based on the transmitted information, the collision risk between the vehicle and the pedestrian is estimated and a warning is given to the driver and the pedestrian.
Ebel, Philipp ; Bretschneider, Ulrich ; Leimeister, Jan-Marco:The Lead User Method for SME - a Guidebook for Practitioners and Facilitators. Kassel, Germany : Chair for Information Systems, Kassel University, 2013
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Prinz, Andreas ; Menschner, Phillip ; Maier, André ; Holm, Teresa ; Meyer, Thomas ; Leimeister, Jan Marco: Corrigendum to “Electronic data capture in healthcare—NFC as easy way for self-reported health status information” [Health Policy Technol. 1 (2012) 137—144]. In: Health Policy and Technology (ISSN: 2211-8837) (2013)
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Dünnebeil, S. ; Sunyaev, A. ; Leimeister, J. M. ; Krcmar, H.: Modulare Softwarearchitektur für Mehrwertanwendungen der deutschen Gesundheitstelematik. In: WIRTSCHAFTSINFORMATIK vol. 55 (2013), Nr. 1, pp. 3–18; DOI: 10.1007/s11576. — JML_389
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Domhardt, M. ; Tunca, E. ; Zoller, I. ; Lotz, P. ; Schmidt, L.:Evaluation eines haptischen Touchpads für die Fahrer-Fahrzeug-Interaktion.. In: Brandenburg, E. D. ; Smieszek, H. (eds.): Grundlagen und Anwendungen der Mensch-Maschine-Interaktion: 10. Berliner Werkstatt Mensch-Maschine-Systeme (Berlin 2013). Berlin : Universitätsverlag der TU Berlin, 2013, pp. 9–18
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In aktuellen Fahrzeugen sind teilweise bereits Touchpads als Nachfolger von Dreh-Drück-Stellern, mechanischen Tasten und Schaltern zu finden. Doch im Gegensatz zu ihren mechanischen Vorgängern fehlt bei der Touchpadinteraktion eine haptische Rückmeldung bei der Auswahl und Betätigung eines auf einem Bildschirm dargestellten Eingabeelements, wie zum Beispiel einer Taste. Um diesen Nachteil zu beheben, wurde von der Firma Continental der Prototyp eines Touchpads entwickelt, der auf Basis einer eindimensional angeregten Masse haptische Rückmeldungen ermöglicht. Im Rahmen einer empirischen Nutzerstudie wurde der Einfluss der elektromechanischen haptischen Rückmeldung bei der Fahrer-Fahrzeug-Interaktion auf Fahrerablenkung, Effektivität, Effizienz des Touchpads und Zufriedenstellung des Fahrers untersucht. Die Evaluation des Prototyps des haptischen Touchpads wurde mit 32 Probanden im Fahrsimulator durchgeführt. Mit Hilfe des Lane Change Tests, Videobeobachtung und automatisierter Emotionsanalyse konnte ein signifikant positiver Einfluss für die Fahrerablenkung und die Effizienz bei der Bewältigung von Nebenaufgaben festgestellt werden. Die Ergebnisse zur Effektivität und Zufriedenstellung zeigten keinen signifikanten Einfluss.
Bitzer, Philipp ; Söllner, Matthias ; Leimeister, Jan Marco:Evaluating the Quality of Technology-Mediated Learning Services.. In: International Conference on Information Systems (ICIS). Milano, Italy, 2013
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Bitzer, Philipp ; Söllner, Matthias:Towards a Productivity Measurement Model for Technology Mediated Learning Services.. In: European Conference on Information Systems (ECIS). Utrecht, The Netherlands, 2013
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Prinz, Andreas ; Leimeister, Jan Marco: Elektronische Datenerfassung im Gesundheitswesen – Near Field Communication NFC als intuitive Möglichkeit zur Patientenselbstbewertung. In: conhIT Krankenhaus-IT-Journal (2013), pp. 16–17
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Bitzer, Philipp ; Menschner, Philipp ; Leimeister, Jan Marco:Success Factors for Technology Mediated Learning Services – First Results of a Delphi Study.. In: Die e-Learning Fachtagung Informatik (DeLFI). Braunschweig, Germany, 2013
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Bittner, Eva Alice Christiane ; Hoffmann, Axel ; Leimeister, Jan Marco:Engineering for Shared Understanding in Heterogeneous Work Groups - An Action Research study at a German Automotive Company.. In: Group Decision and Negotiation (GDN) 2013. Stockholm, Sweden, 2013
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Peters, Christoph ; Škec, Stanko ; Leimeister, Jan Marco ; Štorga, Mario:Systems Engineering Meets Service Science – Extending the Scope for Holistic Design of Product-Service-Systems Using a Telemedicine Example.. In: Tag des Systems Engineering. Stuttgart, Germany, 2013
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Dünnebeil, S. ; Sunyaev, A. ; Leimeister, J. M. ; Krcmar, H.: Modular Architecture of Value-Added Applications for German Healthcare Telematics. In: Business & Information Systems Engineering (BISE) vol. 5 (2013), Nr. 1, pp. 3–16; DOI: 10.1007/s12599. — JML_388
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Schmidt, L. ; Cramar, L. ; Hegenberg, J. ; Braun, R. ; Herrmann, R.:Interaktionsgestaltung zur Teleoperation eines mobilen Roboters.. In: Maier, T. (ed.): Human Machine Interaction Design: Gezielt wahrnehmen, sicher erkennen, attraktiv gestalten (Stuttgart 2013), IKTD-Bericht. Stuttgart : Institut für Konstruktionstechnik und Technisches Design der Universität Stuttgart, 2013, pp. 27–36
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Bittner, E. A. C. ; Leimeister, Jan Marco:Why Shared Understanding Matters - Engineering a Collaboration Process for Shared Understanding to Improve Collaboration Effectiveness in Heterogeneous Teams.. In: 46th Hawaii International Conference on System Sciences (HICSS). Maui, Hawaii, 2013. — 352
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Peters, Christoph:The Systematic Modularization of Services in the Telemedicine Sector.. In: 1st International Spring School on Systems Engineering (IS³E). Paderborn, Germany, 2013
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Peters, C. ; Leimeister, J. M.:Blueprint-driven Telemedicine Process Modeling – A domain-specific Modeling Language.. In: Eighth International Conference on Design Science Research in Information Systems and Technology (DESRIST). Helsinki, Finland, 2013. — JML_397
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Peters, C. ; Leimeister, J. M.:TM³ - A Modularization Method for Telemedical Services: Design and Evaluation.. In: European Conference on Information Systems (ECIS). Utrecht, Netherlands, 2013. — JML_423
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Peters, C. ; Leimeister, J. M.:The Design and Evaluation of TM³ - A Modularization Method for Telemedical Services.. In: 4th International Service Modularity Seminar. Hamburg, Germany, 2013. — JML_392
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Peters, C. ; Leimeister, J. M.: Gesellschaftlich notwendige Dienstleistungen. In: Gegenblende (2013), Nr. 19, pp. 15–20. — JML_406
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Peters, C.:A Modularization Method for Telemedical Services.. In: 21st European Conference on Information Systems Doctoral Consortium (ECIS 2013 DC). Geetbets, Belgium, 2013
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Schmidt, L. ; Behrenbruch, K.:Interdisziplinäre Systemevaluation von Ubiquitous Computing.. In: Brandenburg, E. D. ; Smieszek, H. (eds.): Grundlagen und Anwendungen der Mensch-Maschine-Interaktion: 10. Berliner Werkstatt Mensch-Maschine-Systeme (Berlin 2013). Berlin : Universitätsverlag der TU Berlin, 2013, pp. 102–107
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Roßnagel, A.: Auf dem Weg zur elektronischen Verwaltung – das E-Government-Gesetz. In: Neue Juristische Wochenschrift (2013), Nr. 37, pp. 2710–2716
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Roßnagel, Alexander ; Nebel, Maxi ; Grigorjew, Olga ; Jandt, Silke:BSI Technische Richtlinie 03138 Ersetzendes Scannen - Anlage R: Unverbindliche rechtliche Hinweise, 2013
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Jandt, Silke ; Nebel, Maxi: Die elektronische Zukunft der Anwaltstätigkeit – Rechtsprobleme beim Outsourcing von Scan-Dienstleistungen. In: Neue Juristische Wochenschrift (2013), Nr. 22, pp. 1570–1575
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Macek, Björn-Elmar ; Atzmueller, Martin:Visualizing The Impact of Time Series Data for Predicting User Interactions.. In: Proc. ASONAM 2013. New York, NY, USA : ACM Press, 2013
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Lamla, Jörn ; Kenning, Peter ; Liedtke, Christa ; Oehler, Andreas ; Strünck, Christoph:Verbraucheröffentlichkeit im Netz – Möglichkeiten und Grenzen politischer Gestaltung. Stellungnahme des Wissenschaftlichen Beirats Verbraucher- und Ernährungspolitik beim BMELV, 2013
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Memon, A.Q. ; Lau, Sian Lun ; David, K.:Investigation and Compensation of the Magnetic Deviation on a Magnetometer of a Smartphone Caused by a Vehicle.. In: Vehicular Technology Conference (VTC Fall), 2013 IEEE 78th, 2013, pp. 1–5
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The built-in magnetometer sensor of a smartphone is an attractive sensor suitable for detecting the direction of pedestrians' movements. This detection can be used to enable collision avoidance between cars and pedestrians, particularly if the pedestrian is not visible from inside the moving car. However, surrounding metallic materials have undesired effects and this influences the accuracy of the magnetometer. This paper investigates the amount of magnetic deviation caused by surrounding metallic material, such as a car, when the magnetometer sensor of a smartphone is used to determine the orientation. A set of experiments were conducted to investigate the effects of magnetic deviation. The experimental setup includes both parked and moving cars. Based on the results of the experiments, we show that the magnetic deviation can influence the efficiency of distinguishing the endangered or secure pedestrians in a car to pedestrian collision avoidance scenario. If we intend to use the magnetometer to detect the pedestrians' movement directions, the magnetic deviation needs to be compensated in order to detect the accurate movement direction of pedestrians. Therefore, in this paper we present a compensation algorithm, which successfully compensates the possible amount of magnetic deviation in the magnetometer of a smartphone.
Kusber, Rico ; David, Klaus ; Klein, Bernd Niklas:A Novel Future Internet Smart Grid Application for Energy Management in Offices.. In: 2013 Future Network & Mobile Summit. Lisbon, Portugal : IEEE, 2013 — ISBN 978-1-905824-37-3, pp. 1–10
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In modern offices, energy is consumed by information and communication technology, light, heating, ventilation, and air conditioning. Parts of this energy are wasted because devices are not switched off when users leave the office. In this paper, we present our approach to a future Internet smart grid application for context-aware energy management in offices. It automatically adapts light, heating, ventilation and air conditioning, and power save modes of PCs and laptops to the presence or absence of users. We describe a proof-of-concept implementation and experimental results that show the feasibility of our approach. Overall, this shows one innovative approach, how the future Internet can support the future energy supply, which is moving towards regenerative energy, by providing improved energy efficiency.
Jandt, S. ; Roßnagel, A.: Factoring von Forderungen aus Behandlungsverträgen der Krankenhäuser. In: Medizinrecht (2013), pp. 17–23
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J. Potthoff, P. C. Johannes:Automatisierte Integritätssicherung von wissenschaftlichen Primärdaten ab ihrer Erhebung.. In: 6. DFN-Forum Kommunikationstechnologien : Bonner Köllen Verlag, 2013, pp. 97–106
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Jandt, S. ; Roßnagel, A.: Factoring von Forderungen aus Behandlungsverträgen der Krankenhäuser - datenschutzrechtlich zulässig?. In: Medizinrecht (2013), Nr. 1, pp. 17 – 23
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Kibanov, Mark ; Atzmueller, Martin ; Scholz, Christoph ; Stumme, Gerd:Evolution of Contacts and Communities in Networks of Face-to-Face Proximity (Extended Abstract).. In: Proc. LWA 2013 (KDML Special Track). Bamberg, Germany : University of Bamberg, 2013
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Kniewel, Romy ; Evers, Christoph ; Schmidt, Ludger ; Geihs, Kurt: Challenging the Need for Transparency, Controllability, and Consistency in Usable Adaptation. In: Zapf, M. ; Evers, F. (eds.) Workshop on Self-org., Adaptive, Context-Sens. Distributed Systems / Self-org. Communication in Disaster Scen. 2013, Workshop on Self-org., Adaptive, Context-Sens. Distributed Systems / Self-org. Communication in Disaster Scen. 2013.. Stuttgart (2013)
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Landia, Nikolas ; Doerfel, Stephan ; Jäschke, Robert ; Anand, Sarabjot Singh ; Hotho, Andreas ; Griffiths, Nathan: Deeper Into the Folksonomy Graph: FolkRank Adaptations and Extensions for Improved Tag Recommendations. In: cs.IR vol. 1310.1498 (2013)
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The information contained in social tagging systems is often modelled as a graph of connections between users, items and tags. Recommendation algorithms such as FolkRank, have the potential to leverage complex relationships in the data, corresponding to multiple hops in the graph. We present an in-depth analysis and evaluation of graph models for social tagging data and propose novel adaptations and extensions of FolkRank to improve tag recommendations. We highlight implicit assumptions made by the widely used folksonomy model, and propose an alternative and more accurate graph-representation of the data. Our extensions of FolkRank address the new item problem by incorporating content data into the algorithm, and significantly improve prediction results on unpruned datasets. Our adaptations address issues in the iterative weight spreading calculation that potentially hinder FolkRank's ability to leverage the deep graph as an information source. Moreover, we evaluate the benefit of considering each deeper level of the graph, and present important insights regarding the characteristics of social tagging data in general. Our results suggest that the base assumption made by conventional weight propagation methods, that closeness in the graph always implies a positive relationship, does not hold for the social tagging domain.
Johannes, P.C. ; Potthoff, J. ; Roßnagel, A. ; Madiesh, M. ; Hackel, S. ; B., Neumair:eID im Forschungsprozess,.. In: für Sicherheit in der Informationstechnik, B. (ed.): Informationssicherheit stärken Vertrauen in die Zukunft schaffen, 2013, pp. 405–418
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Kibanov, Mark ; Atzmueller, Martin ; Scholz, Christoph ; Stumme, Gerd:Evolution of Contacts and Communities in Networks of Face-to-Face Proximity (Extended Abstract, Resubmission).. In: Proc. LWA 2013 (KDML Special Track). Bamberg, Germany : University of Bamberg, 2013
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Johannes, P. C. ; Roßnagel, A.: Entwurf einer EU-Verordnung über elektronische Identifizierung und Vertrauensdienste. Neue Regeln für elektronische Sicherheitsdienste. In: Zeitschrift für Datenschutz (ZD) (2013), pp. 65 – 72
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Hirdes, Eike M. ; Leimeister, Jan Marco:A Modeling Language to Describe Reusable Learning Processes to Achieve Educational Objectives in Serious Games.. In: 8th European Conference on Technology Enhanced Learning (EC-TEL). Paphos, Cyprus, 2013
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Johannes, P. C. ; Potthoff, J. ; Madiesh, M. ; Hackel, S. ; Neumair, B. ; Roßnagel, A.: eID im Forschungsprozess. In: BSI (Hrsg.), Informationssicherheit stärken, Vertrauen in die Zukunft schaffen, Tagungsband 13. Deutscher IT-Sicherheitskongress 2013 vol. 13 (2013)
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Leimeister, Jan Marco ; Peters, Christoph:Telemedizin.. In: Kurbel, K. ; Becker, J. ; Gronau, N. ; Sinz, E. ; Suhl, L. (eds.): Enzyklopädie der Wirtschaftsinformatik – Online-Lexikon. vol. 7. München : Oldenbourg, 2013
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Kniewel, R. ; Evers, C. ; Schmidt, L. ; Geihs, K.: Challenging the Need for Transparency, Controllability, and Consistency in Usable Adaptation Design. In: Electronic Communications of the EASST : Proceedings of the Combined Workshop on Self-organizing, Adaptive, and Context- Sensitive Distributed Systems and Self-organized Communication in Disaster Scenarios (Stuttgart 2013) vol. 56 (2013), pp. 2–13
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Adaptive applications constitute the basis for many ubiquitous computing scenarios as they can dynamically adapt to changing contexts. The usability design principles transparency, controllability, and consistency have been recommended for the design of adaptive interfaces. However, designing self-adaptive applications that may act completely autonomous is still a challenging task because there is no set of usability design guidelines. Applying the three principles in the design of the five different adaptations of the mobile adaptive application Meet-U revealed as difficult. Based on an analysis of the design problem space, we elaborate an approach for the design of usable adaptations. Our approach is based on a notification design concept which calculates the attention costs and utility benefits of notified adaptations by varying the design aspects transparency and controllability. We present several designs for the adaptations of Meet\hbox{-}}U. The results of a user study shows that the notification design approach is beneficial for the design of adaptations. Varying transparency and controllability is necessary to adjust an adaptation’s design to the particular context of use. This leads to a partially inconsistent design for adaptations within an application.
Johannes, P. C ; Potthoff, J. ; Roßnagel, A. ; Madiesh, M. ; Neumair, B. ; Hackel, S.:Beweissicheres elektronisches Laborbuch Anforderungen, Konzepte und Umsetzung zur langfristigen, beweiswerterhaltenden Archivierung elektronischer Forschungsdaten und -dokumentation. URL http://public.eblib.com/choice/publicfullrecord.aspx?p=1576372
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Reihe Der Elektronische Rechtsverkehr - Band 29.
Janzen, A. ; Hoffmann, A. ; Hoffmann, H.:Anforderungsmuster im Requirements Engineering.. In: Working Paper Series, Nr. 2. Kassel, Germany, 2013
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Kibanov, Mark ; Erdmann, Dominik J. ; Atzmueller, Martin:How to Select a Suitable Tool for a Software Development Project: Three Case Studies and the Lessons Learned.. In: Wagner, S. ; Lichter, H. (eds.): Software Engineering 2013 - Workshopband : Gesellschaft für Informatik, 2013
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This paper describes a framework for evaluating and selecting suitable soft- ware tools for a software project, which is easily extendable depending on needs of the project. For an evaluation, we applied the presented framework in three different projects. These projects use different software development methods (from classical models to Scrum) in different environments (industry and academia). We discuss our experiences and the lessons learned.
Kieselmann, Olga ; Kopal, Nils ; Wacker, Arno:Interdisziplinäre Sicherheitsanalyse.. In: 10. Berliner Werkstatt Mensch-Maschine-Systeme - Grundlagen und Anwendungen der Mensch-Maschine-Interaktion. Berlin, 2013
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Im Rahmen der Evaluation einer ubiquitären Anwendung wird in der Regel auch die Erfüllung der Sicherheitsanforderungen durch Sicherheits-Spezialisten überprüft. In einem rein disziplinären Vorgehen wird dies vollständig unabhängig von den anderen Disziplinen z.B. Benutzervertrauen oder rechtliche Anforderungen durchgeführt. Die dabei entdeckten Sicherheitsmängel berücksichtigen häufig nicht die Endnutzer und können Auswirkung auf andere Disziplinen haben. Daher schlagen wir in diesem Beitrag eine neue interdisziplinäre Sicherheitsanalyse vor, welche den Endnutzer und die Abhängigkeiten zu anderen Disziplinen berücksichtigt. Dies erreichen wir, indem wir jeden Schritt der klassischen Sicherheitsanalyse interdisziplinär durchführen und erkannte Bedrohungen während einer Systemevaluation als konkrete Angriffe simulieren. Darüber hinaus zeigen wir die konkrete Anwendung unserer interdisziplinären Sicherheitsanalyse am Beispiel einer prototypischen Anwendung.
Kipp, P. ; Wieck, E. ; Bretschneider, U. ; Leimeister, J. M.:12 Years of GENEX Framework: What did Practice Learn from Science in Terms of Web-Based Ideation?. In: Wirtschaftsinformatik Konferenz (WI) 2013. Leipzig, Germany, 2013. — 373
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König, Immanuel ; Memon, Abdul Qudoos ; David, Klaus:Energy consumption of the sensors of Smartphones.. In: Proceedings of the 10th International Symposium on Wireless Communication Systems (ISWCS). Ilmenau, Germany : IEEE, 2013 — ISBN 978-3-8007-3529-7, pp. 1–5
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From the first Smartphones to the current generation, huge steps have been taken in their technical development, which opened up a new era of applications and services. And the concurrent equipping of Smartphones with multiple sensors has also facilitated new applications and services. Since the energy supply of a Smartphone is quite limited, applications and services must take into account the energy consumptions of the Smartphone components. Many Smartphone components have been investigated with regard to their energy consumption. However, the energy consumption of Smartphone sensors has not yet been thoroughly investigated. With this paper we contribute an investigation on the energy consumption of Smartphone sensors. We do this in two different ways: firstly, by measuring with a volt meter and an ammeter and secondly, by using the Smartphone's internal API. From the presented results one can conclude that an average Smartphone can be used for daily sensing and context surveys.
Hoffmann, H. ; Bullinger, A.C. ; Fellbaum, C.:Towards the automated evaluation of crowd work: Machine-learning based classification of complex texts simplified by laymen.. In: 46th Hawaii International Conference on System Sciences (HICSS 2013). Grand Wailea, 2013. — 393
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Klotz, M. ; Sulk, I. ; Wieck, E.: Sicherstellung der Compliance von Sekundärsystemen bei digitaler Betriebsprüfung. In: HMD - Praxis der Wirtschaftsinformatik (2013), Nr. 289, pp. 61–69. — JML_405
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König, Immanuel ; Klein, Bernd Niklas ; David, Klaus:On the stability of context prediction.. In: Mattern, F. ; Santini, S. ; Canny, J. F. ; Langheinrich, M. ; Rekimoto, J. (eds.): Proceedings of the 2013 ACM Conference on Pervasive and Ubiquitous Computing Adjunct Publication, UbiComp ’13 Adjunct. New York, NY, USA : ACM, 2013 — ISBN 978-1-4503-2215-7, pp. 471–480
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Janson, Andreas ; Hoffmann, Axel ; Hoffmann, Holger ; Leimeister, Jan Marco:How Customers Trust Mobile Marketing Applications.. In: International Conference on Information Systems (ICIS). Milano, Italy, 2013
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Leimeister, Jan Marco ; Zogaj, Shkodran:Neue Arbeitsorganisation durch Crowdsourcing. Eine Literaturstudie.. In: Hans-Böckler-Stiftung - Arbeitspapier 287, Arbeitspapier, Arbeit und Soziales. Düsseldorf, 2013
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Hoffmann, Axel ; Janzen, Andrej ; Hoffmann, Holger ; Leimeister, Jan Marco:Success Factors for Requirement Patterns Approaches - Exploring Requirements Analysts’ Opinions and Whishes.. In: Sozio-technisches Systemdesign im Zeitalter des Ubiquitous Computing (SUBICO 2013) im Rahmen der Informatik 2013. Koblenz, Germany, 2013
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Hoffmann, Axel ; Hoffmann, Holger ; Söllner, Matthias:Fostering Initial Trust in Applications – Developing and Evaluating Requirement Patterns for Application Websites.. In: European Conference on Information Systems (ECIS). Utrecht, The Netherlands, 2013
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When users first encounter an application, or decide which application from a number of options to use, their initial trust in this application is a determinant for their willingness to adopt it. At this time, users have not yet had a chance to interact with the application, and hence their perceptions are based on the application presentation on the website rather than on the application’s actual performance. To help providers select supporting measures for the website to improve the perceived trustworthiness of their application, we propose a set of requirement patterns. Patterns are used in requirements engineering to recognize important and recurring issues, thus reducing the effort during requirements specification. We developed them from trust theory, following the design-science based evaluation framework for patterns. To evaluate the feasibility of our approach, 17 teams used the patterns to specify a website for a mobile application. The results indicate that the teams frequently used ten of our proposed patterns. A subsequent survey regarding pattern quality shows an overall acceptance and that the team members rated the patterns as comprehensible, understandable and helpful. We hence conclude that our approach to incorporating trust-based requirements to foster initial trust in application website specifications is feasible.
Hoffmann, Axel ; Bittner, Eva Alice Christiane ; Leimeister, Jan Marco:The Emergence of Mutual and Shared Understanding in the System Development Process.. In: Doerr, J. ; Opdahl, A. L. (eds.): Requirements Engineering: Foundation for Software Quality, Lecture Notes in Computer Science. Essen, Germany : Springer Verlag, 2013. — JML_395, pp. 174–189
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Kniewel, R. ; Gerhold, M. ; Parusel, M. ; Ackermann, L. ; Schmidt, L.:Assistenzsystem für den Computerarbeitsplatz zur Vermeidung von Überbeanspruchung.. In: Verband der Elektrotechnik Elektronik Informationstechnik e. V. (ed.): Lebensqualität im Wandel von Demografie und Technik: 6. Deutscher AAL-Kongress (Berlin 2013). Berlin : VDE-Verlag, 2013, pp. 438–442
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Ein technisches Assistenzsystem für den Computerarbeitsplatz könnte dabei unterstützen, physische und psychische Beanspruchungen zu mindern, indem es sensorbasiert erfasst, wenn eine übermäßige Beanspruchung vorliegt und Gegenmaßnahmen in einer adäquaten Weise vorschlägt. Auch könnte es möglichen Beanspruchungen vorbeugen. Im Projekt "Smart Seating" wurden verschiedene Bestandteile des beschriebenen Assistenzsystems im Rahmen des benutzerzentrierten Gestaltungsansatzes unter Einbezug der potentiellen Nutzer konzipiert oder prototypisch entwickelt. Dieser Beitrag stellt die Einzelarbeiten und die jeweiligen Erkenntnisse für die Entwicklung des Assistenzsystems vor.
Kibanov, Mark ; Atzmueller, Martin ; Scholz, Christoph ; Stumme, Gerd:On the Evolution of Contacts and Communities in Networks of Face-to-Face Proximity.. In: Guerrero, J. E. (ed.): Proceedings of the 2013 IEEE Cyber, Physical and Social Computing, CPSCom 2013, Beijing, China, 20-23 August, 2013. Los Alamitos, CA, USA : IEEE Computer Society, 2013, pp. 993–1000
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Communities are a central aspect in the formation of social interaction networks. In this paper, we analyze the evolution of communities in networks of face-to-face proximity. As our application context, we consider four scientific conferences. We compare the basic properties of the contact graphs to describe the properties of the contact networks and analyze the resulting community structure using state-of-the-art automic community detection algorithms. Specifically, we analyze the evolution of contacts and communities over time to consider the stability of the respective communities. In addition, we assess different factors which have an influence on the quality of community prediction. Overall, we provide first important insights into the evolution of contacts and communities in face-to-face contact networks.
Mitzlaff, Folke ; Atzmueller, Martin ; Benz, Dominik ; Hotho, Andreas ; Stumme, Gerd: User-Relatedness and Community Structure in Social Interaction Networks. In: CoRR/abs vol. 1309.3888 (2013)
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Lamla, Jörn:Verbraucherdemokratie. Politische Soziologie der Konsumgesellschaft. Berlin : Suhrkamp, 2013
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Mitzlaff, Folke ; Atzmueller, Martin ; Stumme, Gerd ; Hotho, Andreas:On the Semantics of User Interaction in Social Media (Extended Abstract).. In: Proc. LWA 2013 (KDML Special Track). Bamberg, Germany : University of Bamberg, 2013
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Mitzlaff, Folke:Name Me If You Can(!) - Leveraging Networks of Given Names.. In: Proceedings from Sunbelt XXXIII, 2013
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Lamla, Jörn: Arenen des Demokratischen Experimentalismus. Zur Konvergenz von nordamerikanischem und französischem Pragmatismus. In: Berliner Journal für Soziologie vol. 23 (2013), pp. 345–365
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Heußner, M. ; Ackermann, L. ; Widy, O. ; Schmidt, L. ; Pippert, M. ; Bienhaus, D. ; Durward, D. ; Prinz, A. ; et al.:AAL-Weiterbildung für Pflege und Handwerk: erste Ergebnisse einer Anforderungsanalyse.. In: 6. Deutscher AAL-Kongress 2013 - Themenschwerpunkt: AAL in der gesundheitlichen Versorgungskette: Zuhause – Unterwegs – im Krankenhaus – in der Reha – in der Pflege – im Hospiz. Berlin, Germany, 2013
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Kroschwald, S.: Verschlüsseltes Cloud Computing – Anwendung des Daten- und Geheimnisschutzrechts auf „betreibersichere“ Clouds am Beispiel der „Sealed Cloud“. In: (Hrsg.), T. (ed.) Law as a Service (LaaS) – Recht im Internet- und Cloud-Zeitalter (Tagungsband DSRI Herbstakademie 2013) (2013), pp. 289–308
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Kroschwald, S. ; Boos, C. ; Wicker, M.: Datenschutz bei Cloud Computing zwischen TKG, TMG und BDSG – Datenkategorien bei der Nutzung von Cloud-Diensten. In: Zeitschrift für Datenschutz (2013), pp. 205–210
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Kipp, Philipp ; Leimeister, Jan Marco:Kollaborative Verbesserung von Ideen auf Web-basierten Ideenplattformen.. In: Mensch & Computer 2013 - Leichtgewichtige Werkzeuge zur Unterstützung von Kooperation und persönlichem Wissensmanagement. Bremen, Germany, 2013
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Johannes, Paul C. ; Potthoff, J. ; Stumpf, M.:Automatisierte Integritätssicherung von wissenschaftlichen Primärdaten ab ihrer Erhebung.. In: , 2013, pp. 97–106
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Hähner, J. ; Rudolph, S. ; Tomforde, S. ; Fisch, D. ; Sick, B. ; Kopal, N ; Wacker, A:A Concept for Securing Cyber-Physical Systems with Organic Computing Techniques.. In: 1st International Workshop on „Self-optimisation in organic and autonomic computing systems“ (SAOS13), held in conjunction with 26th International Conference on Architecture of Computing Systems (ARCS 2013). Prague, Czech Republic, 2013
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Mitzlaff, Folke ; Stumme, Gerd: Onomastics 2.0 - The Power of Social Co-Occurrences (2013). — cite arxiv:1303.0484Comment: Historically, this is the first paper on the analysis of names in the context of the name search engine ’nameling’. arXiv admin note: text overlap with arXiv:1302.4412
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Onomastics is "the science or study of the origin and forms of proper names of persons or places." ["Onomastics". Merriam-Webster.com, 2013. http://www.merriam-webster.com (11 February 2013)]. Especially personal names play an important role in daily life, as all over the world future parents are facing the task of finding a suitable given name for their child. This choice is influenced by different factors, such as the social context, language, cultural background and, in particular, personal taste. With the rise of the Social Web and its applications, users more and more interact digitally and participate in the creation of heterogeneous, distributed, collaborative data collections. These sources of data also reflect current and new naming trends as well as new emerging interrelations among names. The present work shows, how basic approaches from the field of social network analysis and information retrieval can be applied for discovering relations among names, thus extending Onomastics by data mining techniques. The considered approach starts with building co-occurrence graphs relative to data from the Social Web, respectively for given names and city names. As a main result, correlations between semantically grounded similarities among names (e.g., geographical distance for city names) and structural graph based similarities are observed. The discovered relations among given names are the foundation of "nameling" [http://nameling.net], a search engine and academic research platform for given names which attracted more than 30,000 users within four months, underpinningthe relevance of the proposed methodology.
Mitzlaff, Folke ; Stumme, Gerd: Recommending Given Names (2013). — cite arxiv:1302.4412Comment: Baseline results for the ECML PKDD Discovery Challenge 2013
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All over the world, future parents are facing the task of finding a suitable given name for their child. This choice is influenced by different factors, such as the social context, language, cultural background and especially personal taste. Although this task is omnipresent, little research has been conducted on the analysis and application of interrelations among given names from a data mining perspective. The present work tackles the problem of recommending given names, by firstly mining for inter-name relatedness in data from the Social Web. Based on these results, the name search engine "Nameling" was built, which attracted more than 35,000 users within less than six months, underpinning the relevance of the underlying recommendation task. The accruing usage data is then used for evaluating different state-of-the-art recommendation systems, as well our new NR algorithm which we adopted from our previous work on folksonomies and which yields the best results, considering the trade-off between prediction accuracy and runtime performance as well as its ability to generate personalized recommendations. We also show, how the gathered inter-name relationships can be used for meaningful result diversification of PageRank-based recommendation systems. As all of the considered usage data is made publicly available, the present work establishes baseline results, encouraging other researchers to implement advanced recommendation systems for given names.
Kohlborn, Thomas ; Korthaus, Axel ; Peters, Christoph ; Fielt, Erwin: A Comparative Study of Governmental One-Stop Portals for Public Service Delivery. In: International Journal of Intelligent Information Technologies (IJIIT) vol. 9 (2013), Nr. 3, pp. 1–19
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Jandt, S. ; Kieselmann, O. ; Wacker, A.: Recht auf Vergessen im Internet – Diskrepanz zwischen rechtlicher Zielsetzung und technischer Realisierbarkeit. In: Datenschutz und Datensicherheit DuD (2013), pp. 235–241
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Kipp, Philipp ; Bittner, E. A. C. ; Hoffmann, Axel ; Bretschneider, Ulrich ; Leimeister, Jan Marco:Collaborative Idea Elaboration on Web-Based Ideation Platforms.. In: Eighth International Conference on Design Science Research in Information Systems and Technology (DESRIST). Helsinki, Finland, 2013
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Kroll, Dennis ; Kusber, Rico ; David, Klaus ; Schumacher, Patrick ; Yu, Young Jae:Energy Saving by Context Aware Heating.. In: Horbach, M. (ed.): Proceedings of the Informatik 2013 Workshop on Umweltinformatik zwischen Nachhaltigkeit und Wandel, Lecture Notes in Informatics. Koblenz, Germany : GI, 2013 — ISBN 978-3-88579-614-5, pp. 995–1004
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A significant part of the overall energy consumption of office buildings and households in Europe is consumed for heating. Today's standard is that heaters are controlled by thermostats so that the desired temperatures are maintained for set periods. We now present ConAH (Context Aware Heating) that controls heaters so that heating periods are minimized while keeping the comfort of the occupants. ConAH utilizes information about future presences of occupants in the rooms, called location context of the occupants. To minimize the heating periods and save energy, heaters are switched on just sufficiently before and during usage times of the room and are switched off in all other cases. To calculate the moments to switch heaters on (heat up) or off (cool down), ConAH needs: 1. the future occupancies of the room. Future room occupancies are obtained via the prediction of the occupant's context, here in terms of location. 2. the time that the room needs to heat up or to cool down between two reference temperatures. This is called the room's heating and cooling profile and is determined by experiments in a real meeting room, as well as by simulations. We present the potential energy savings of ConAH compared to a standard controller with a thermostat and explain the effects that are responsible for these results.
Johannes, Paul C.: Elektronische Formulare im Verwaltungsverfahren - Neue Form des Schriftformersatzes, Multimedia und Recht (MMR), 11/2013, S. 694 – 700.. In: Multimedia und Recht (2013), pp. 694 – 700
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Mitzlaff, Folke ; Atzmueller, Martin ; Stumme, Gerd ; Hotho, Andreas:Semantics of User Interaction in Social Media.. In: Ghoshal, G. ; Poncela-Casasnovas, J. ; Tolksdorf, R. (eds.): Complex Networks IV, Studies in Computational Intelligence. vol. 476. Heidelberg, Germany : Springer Verlag, 2013
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2012[ to top ]

Behrenbruch, K. ; Jandt, S. ; Schmidt, L. ; Roßnagel, A.:Normative Anforderungsanalyse für ein RFID-basiertes Assistenzsystem für Arbeitsgruppen.. In: für Arbeitswissenschaft e. V., G. (ed.): Gestaltung nachhaltiger Arbeitssysteme – Wege zur gesunden, effizienten und sicheren Arbeit: 58. Kongress der Gesellschaft für Arbeitswissenschaft: Kassel 2012 : GfA-Press, 2012, pp. 473–476
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Roßnagel, A. ; Desoi, M. ; Hornung, G.: Noch einmal: Spannungsverhältnis zwischen Datenschutzrecht und Ethik – am Beispiel der smarten Video-Überwachung,. In: Zeitschrift für Datenschutz (2012), Nr. 10, pp. 459 – 462
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Behrenbruch, K. ; Atzmüller, M. ; Evers, C. ; Schmidt, L. ; Stumme, G. ; Geihs, K.:A Personality Based Design Approach Using Subgroup Discovery.. In: Winckler, M. ; Forbrig, P. ; Bernhaupt, R. (eds.): 4th International Conference on Human-Centered Software Engineering (Toulouse 2012), Lecture Notes in Computer Science. Berlin : Springer, 2012, pp. 259–266
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To facilitate user-centered software engineering, developers need an easy to grasp understanding of the user. The use of personas helps to keep specific user needs in mind during the design process. Technology acceptance is of particular interest for the design of innovative applications previously unknown to potential users. Therefore, our research focuses on defining a typology of relevant user characteristics with respect to technology acceptance and transferring those findings to the description of personas. The presented work focuses on the statistical relationship between technology acceptance and personality. We apply sub-group discovery as a statistical tool. Based on the statistically derived subgroups and patterns we define the mentioned personas to help developers to understand different forms of technology acceptance. By integrating the specifically defined personas into existing methods in the field of software engineering the feasibility of the presented approach is demonstrated.
Dünnebeil, S. ; Leimeister, J. M. ; Krcmar, H.:Business Models for Electric Healthcare Services.. In: Wickramasinghe, N. ; Bali, R. ; Kirn, S. ; Suomi, R. (eds.): Critical Issues for the Development of Sustainable E-health Solutions. 1. ed.. New York, USA : Springer, 2012, pp. 271–292
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Roßnagel, A. ; Henschel, A.: The legalities of a nuclear shutdown (2012)
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Roßnagel, A. ; Henschel, A. ; Polzer, A.: Wasserrechtliche Bewertung der unkonventionellen Erdgasförderung mittels Fracking. In: Wasser und Abfall (2012), pp. 16–19
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Roßnagel, A. ; Jandt, S.:Datenschutz und Persönlichkeitsrechte im Social Web, insbesondere von Social Networking-Sites.. In: Schenk, M. ; Niemann, J. ; Reimann, G. ; Roßnagel, A. (eds.): , 2012, pp. 309–398
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Hoss, D. ; Pocs, M.:Diskussionsbericht zum Energieinformationsnetz, Datenschutz und Sicherheit.. In: Roßnagel, A. (ed.): Nutzerschutz - Rechtsrahmen, Technikpotenziale, Wirtschaftskonzepte : Nomos, 2012, pp. 83–87
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Behrenbruch, K. ; Kniewel, R. ; Niemczyk, S. ; Schmidt, L.:Akzeptanz technikferner Nutzergruppen für innovative Smartphone-Apps.. In: Automatisierungstechnik, V.-G. M.- und (ed.): Useware 2012: Mensch-Maschine-Interaktion (Kaiserslautern 2012), VDI-Berichte. Düsseldorf : VDI-Verlag, 2012, pp. 65–74
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Zu einer sozialverträglichen Technikgestaltung neuartiger Smartphone-Anwendungen gehört es, die Bedürfnisse unterschiedlicher Nutzergruppen zu berücksichtigen. Dieser Beitrag stellt die Kasseler Entwicklungsmethodik vor, die darauf ausgerichtet ist, softwarebasierte Systeme sozialverträglich zu gestalten und im Rahmen der Zusammenarbeit im Forschungsprojekt VENUS gemeinsam entworfen wird. Die koordinierte Zusammenarbeit von Experten aus den Bereichen Informatik, Rechts- und Wirtschaftswissenschaften sowie Ergonomie im Rahmen der Kasseler Methodik wird im Folgenden am Beispiel der Gestaltung der Smartphone Applikation Meet-U dargestellt. Dabei wird das Entwicklungsergebnis mit Kasseler Methodik (Meet-U-A) im Rahmen einer Evaluation der Nutzerakzeptanz mit einer Version B der Anwendung (Meet-U-B) verglichen, die ohne Kasseler Methodik entwickelt wurde. Die Auswertung der Evaluationen (n=150 bzw. n=153) erfolgte mit dem Ziel, die folgende Hypothese zu prüfen: Die Entwicklung nach Kasseler Methodik führt zu einer höheren Akzeptanz bei einer relativ technikfernen Nutzergruppe. Für die technikfernen Personen konnte tatsächlich eine signifikante Erhöhung der Akzeptanz von etwa 50% (Meet-U-B) auf 70% (Meet-U-A) festgestellt werden. Die Ergebnisse der Evaluationen werden bezogen auf ihre Aussagekraft für die Qualität der Kasseler Methodik diskutiert.
Atzmueller, M. ; Hotho, A. (eds.):Proceedings of the Third International Workshop on Mining Ubiquitous and Social Environments (MUSE 2012). Bristol, UK : Workshop Notes, 2012
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Roßnagel, A. ; Jandt, S. ; Skistims, H. ; Zirfas, J:Zulässigkeit von Feuerwehr-Schutzanzügen mit Sensoren und Anforderungen an den Umgang mit personenbezogenen Daten.. In: Bundesanstalt für Arbeitsschutz und Arbeitsmedizin. Dortmund, 2012
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Schulz, D. ; Schmidt, L.: RoboGasInspector - Autonome Mobilität und Mensch-Maschine-Aspekte. In: Forum Forum Robotics, Automation & Vision, Hannover Messe, Vortrag, Forum Forum Robotics, Automation & Vision, Hannover Messe, Vortrag.. Hannover (2012)
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Fähling, J. ; Huber, M. J. ; Böhm, F. ; Leimeister, J. M. ; Krcmar, H.: Scenario planning for innovation development: an overview of different innovation domains. In: Int. J. Technology Intelligence and Planning (IJTIP) vol. 8 (2012), Nr. 2, pp. 95–114. — EXT12
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Roßnagel, A. ; Richter, P.:Internet Privacy aus rechtswissenschaftlicher Sicht.. In: Buchmann, J. (ed.): , 2012, pp. 281–326
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Roßnagel, A. ; Jandt, S. ; Skistims, H. ; Zirfas, J.:Datenschutz bei Wearable Computing Eine juristische Analyse am Beispiel von Schutzanzügen, DuD-Fachbeiträge : Springer Vieweg, 2012
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Hoffmann, Axel ; Söllner, Matthias ; Fehr, Alexander ; Hoffmann, Holger ; Leimeister, Jan Marco: Towards an Approach for Developing Socio-Technical Ubiquitous Computing Applications. In: Informatik 2011 - Informatik schafft Communities. Beiträge der 41. Jahrestagung der Gesellschaft für Informatik e.V. (GI) vol. P-192. Berlin, Germany, LNI (2012), Nr. 41, pp. 1–15
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The purpose of the paper is to make a step towards a development approach for ubiquitous computing application. Therefore, we answer the following research questions: first, what is ubiquitous computing; second, which challenges of ubiquitous system development poses the particular nature of ubiquitous computing; and third, how to overcome these challenges by combining development methods from different fields. Major challenges in ubiquitous application development are a) dissociation from known user-interfaces, b) end users’ difficulties imagining ubicomp possibilities in participatory design settings, c) easy ubicomp application evaluation exceeds possibilities of current prototyping approaches, d) supporting user acceptance for ubicomp technologies is hence limited and e) the impact on society e.g. when introducing concealed sensors for ubicomp systems. This paper elaborates the specific challenges, analyzes to what extend existing development methods can be used to overcome these challenges, and introduces the VENUS approach for developing ubiquitous computing applications including methods for deriving requirements from law to ensure legally and socially compatible technology design, and trust to increase user acceptance of the developed applications.
Hoffmann, A. ; Söllner, M. ; Hoffmann, H.:Twenty software requirement pattern to specify recommender systems that users will trust.. In: 20th European Conference on Information Systems (ECIS). Barcelona, Spanien, 2012
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Hoffmann, A. ; Söllner, M. ; Hoffmann, H.:Twenty software requirement patterns to specify recommender systems that users will trust.. In: European Conference on Information Systems (ECIS). Barcelona, Spanien, 2012. — 324
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Hoffmann, A. ; Söllner, M. ; Hoffmann, H. ; Leimeister, J. M.:Towards Trust-Based Software Requirement Patterns.. In: Second International Workshop on Requirements Patterns (RePa’ 12). Chicago, Illinois, USA, 2012. — 351
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Ebel, P. ; Bretschneider, U. ; Leimeister, J. M.:Ideas Contributors Wanted - Towards The Adaption Of the Pyramiding Approach to Recruit New Idea Contributors For An Virtual Ideas Competition.. In: European Academy of Management Conference (EURAM). Rotterdam, Netherlands, 2012. — 312
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Gebauer, Lysann ; Söllner, Matthias ; Leimeister, Jan Marco:Hemmnisse bei der Nutzung von Cloud Computing im B2B-Bereich und die Zuordnung dieser zu den verschiedenen Vertrauensbeziehungen.. In: ConLife 2012 Academic Conference. Cologne, Germany, 2012. — 338
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Leimeister, Jan Marco:Dienstleistungsengineering und -management. 1. ed.. Berlin, Germany : Springer Berlin Heidelberg, 2012. — 320 — ISBN 978-3-642-27982-9
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Ebel, P. ; Bretschneider, U. ; Leimeister, J. M.:Erarbeitung eines Workshopdesigns zur weiteren Ausarbeitung der Ergebnisse einer virtuellen Ideencommunity.. In: Proceedings zum Workshop Gemeinschaft in Neuen Medien (GeNeMe 12). Dresden, Germany, 2012. — 357
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Leimeister, J.M. ; Bretschneider, U.:IT-gestützter Ideenwettbewerb.. In: Achatz, R. ; Braun, M. ; Sommerlatte, T. (eds.): Fachlexikon Technologie- und Innovationsmanagement. Düsseldorf, Germany : Symposium Verlag, 2012. — 319, pp. 216–218
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Leimeister, Jan Marco ; Peters, Christoph:Gesellschaftlich notwendige Dienstleistungen - soziale Innovationen denken lernen.. In: WISO-Diskurs - Expertisen und Dokumentationen zur Wirtschafts- und Sozialpolitik, Arbeitspapier des Arbeitskreises Dienstleistungen der Friedrich-Ebert-Stiftung. Bonn, Germany: Friedrich-Ebert-Stiftung, Abteilung Wirtschafts- und Sozialpolitik, 2012. — 366
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Leimeister, J. M.: Crowdsourcing: Crowdfunding, Crowdvoting, Crowdcreation. In: Zeitschrift für Controlling und Management (ZFCM) (2012), Nr. 56, pp. 388–392. — JML_391
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Kropf, J: Der symbolische Wert der Popmusik. Zur Genese und Struktur des popmusikalischen Feldes. In: Berliner Journal für Soziologie vol. 22 (2012), Nr. 2, pp. 267–292
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Domhardt, M. ; Schmidt, L.:Analyse technologieabhängiger Interaktionsmöglichkeiten bei berührungsempfindlichen Anzeigen.. In: Automatisierungstechnik, V.-G. M.- und (ed.): Useware 2012: Mensch-Maschine-Interaktion (Kaiserslautern 2012), VDI-Berichte. Düsseldorf : VDI-Verlag, 2012, pp. 1–11 im Nachtrag
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Bei der Gestaltung von interaktiven Systemen mit einem Touchscreen als Mensch-Maschine-Schnittstelle kann man zwischen Touchscreens unterschiedlicher technologischer Funktionsprinzipien wählen. Die unterschiedlichen Technologien wirken sich jedoch auch auf die Interaktionsmöglichkeiten aus. Der Beitrag liefert daher eine Übersicht zu den interaktionsbeeinflussenden Faktoren bei der Touchscreenauswahl und legt den Aufbau und die Funktionsweise der unterschiedlichen Touchscreentechnologien dar. Die einzelnen Technologien wurden im Bezug auf Interaktionsbeeinflussende Faktoren analysiert und die Ergebnisse im Hinblick auf die gezielte systematische Auswahl einer geeigneten Touchscreentechnologie aufbereitet und dargestellt.
Behrenbruch, Kay ; Atzmueller, Martin ; Evers, Christoph ; Schmidt, Ludger ; Stumme, Gerd ; Geihs, Kurt:A Personality Based Design Approach Using Subgroup Discovery.. In: Human-Centred Software Engineering, LNCS. vol. 7623. Heidelberg, Germany : Springer, 2012, pp. 259–266
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To facilitate user-centered software engineering, developers need an easy to grasp understanding of the user. The use of personas helps to keep specific user needs in mind during the design process. Technology acceptance is of particular interest for the design of innovative applications previously unknown to potential users. Therefore, our research focuses on defining a typology of relevant user characteristics with respect to technology acceptance and transferring those findings to the description of personas. The presented work focuses on the statistical relationship between technology acceptance and personality. We apply sub-group discovery as a statistical tool. Based on the statistically derived subgroups and patterns we define the mentioned personas to help developers to understand different forms of technology acceptance. By integrating the specifically defined personas into existing methods in the field of software engineering the feasibility of the presented approach is demonstrated.
Kipp, P. ; Zogaj, S. ; Ebel, P. ; Bretschneider, U. ; Leimeister, J. M.:Introducing Open Innovation to Universities - How to Increase Universities Innovativeness.. In: International Society for Professional Innovation Management (ISPIM). Barcelona, Spain, 2012. — 331
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Roßnagel, A. ; Skistims, H.: Rechtlicher Schutz vor Staatstrojanern?. In: Zeitschrift für Datenschutz (ZD) (2012), Nr. 1, pp. 3–7
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Roßnagel, A. ; Lerch, H. ; Krause, B. ; Hotho, A. ; Stumme, G.: Datenschutz im Web 2.0 am Beispiel des sozialen Tagging-Systems BibSo-nonmy. In: Informatik-Spektrum vol. 33 (2012), Nr. 1, pp. 12–23
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Dünnebeil, S. ; Sunyaev, A. ; Leimeister, J. M. ; Krcmar, H.:Market Engineering for Electronic Healthcare Services.. In: 45. Hawaii International Conference on System Sciences (HICSS). Hawaii, USA, 2012. — 347
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Krieg, R. ; Kartal-Aydemir, A.: Haftung von Anbietern kollaborativer Internetplattformen – Störerhaftung für User Generated Content?. In: MMR (2012), Nr. 10, pp. 647 – 652
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Roßnagel, A. ; Benz, S.:Rechtliche Vorgaben für die Vergütung von Strom aus Biomasse.. In: Müller, T. (ed.): , 2012, pp. 569–594
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Kniewel, R. ; Schmidt, L.:Iterative Gestaltung einer Computermaus als Beanspruchungsassistenzsystem.. In: Gesellschaft für Arbeitswissenschaft e. V. (ed.): Gestaltung nachhaltiger Arbeitssysteme - Wege zur gesunden, effizienten und sicheren Arbeit: 58. Kongress der Gesellschaft für Arbeitswissenschaft (Kassel 2012). Dortmund : GfA-Press, 2012, pp. 447–450
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Ein in den Computerarbeitsplatz integriertes Assistenzsystem, das auf Grundlage sensorischer Messungen physiologischer Parameter des Nutzers, wie beispielsweise der elektrodermalen Aktivität, funktioniert und zu seinem daraus abgeleiteten Beanspruchungszustand Feedback gibt, könnte für den aktiven Abbau von Disstress im Arbeitskontext sinnvoll sein. Dieser Beitrag beschreibt mit einer ïntelligenten" Computermaus eine Komponente dieses Arbeitsplatzes, die iterativ im Rapid-Prototyping-Verfahren entwickelt und evaluiert wurde. Darüber hinaus werden relevante Gestaltungsaspekte für die Weiterentwicklung der Komponente und des Gesamtsystems dargestellt.
Atzmueller, Martin ; Becker, Martin ; Doerfel, Stephan ; Kibanov, Mark ; Hotho, Andreas ; Macek, Björn-Elmar ; Mitzlaff, Folke ; Mueller, Juergen ; et al.:Ubicon: Observing Social and Physical Activities.. In: Proc. 4th IEEE Intl. Conf. on Cyber, Physical and Social Computing (CPSCom 2012), 2012
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Scholz, Christoph ; Atzmueller, Martin ; Stumme, Gerd:On the Predictability of Human Contacts: Influence Factors and the Strength of Stronger Ties.. In: Proc. Fourth ASE/IEEE International Conference on Social Computing (SocialCom). Boston, MA, USA : IEEE Computer Society, 2012
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Kniewel, R. ; Schmidt, L.:Kleiner Helfer - Ein mobiles Assistenzsystem für die Campus-Erkundung durch Studierende.. In: Gesellschaft für Arbeitswissenschaft e. V. (ed.): Gestaltung nachhaltiger Arbeitssysteme - Wege zur gesunden, effizienten und sicheren Arbeit: 58. Kongress der Gesellschaft für Arbeitswissenschaft (Kassel 2012). Dortmund : GfA-Press, 2012, pp. 149–152
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Der "K}leine Helfer", ein mobiles Assistenzsystem zur Campuserkundung, soll Studienanfänger dabei unterstützen, studienrelevante Gebäude ausfindig zu machen und die von den universitären Einrichtungen jeweils angebotenen Dienstleistungen effektiv und effizient in Anspruch zu nehmen. Dieser Beitrag beschreibt die Erhebung von Benutzeranforderungen an die Gestaltung des Kleinen Helfers, für die eine State-of-the-Art-Analyse aktueller Campus-Applikationen und eine Fokusgruppe mit Studierenden der Universität Kassel durchgeführt wurden.
Atzmueller, M. ; Chin, A. ; Helic, D. ; Hotho, A. (eds.):Modeling and Mining Ubiquitous Social Media, Lecture Notes in Computer Science. vol. 7472. Heidelberg, Germany : Springer Verlag, 2012
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Shirmohammadi, Shervin ; Hu, Shun-yun ; Ooi, Wei Tsang ; Schiele, Gregor ; Wacker, Arno:Mixing Virtual and Physical Participation: The Future of Conference Attendance?. In: Workshop on Massively Multiuser Virtual Environemnts 2012 (MMVE12). Munich, Germany, 2011
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Shire, K.A. ; Leimeister, J. M.: Technologiegestützte Dienstleistungsinnovation in der Gesundheitswirtschaft. Wiesbaden, Germany, Gabler Verlag, ISBN: 978-3834935052 (2012)
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Atzmueller, Martin ; Beer, Stephanie ; Puppe, Frank:Data Mining, Validation and Collaborative Knowledge Capture.. In: Brüggemann, S. ; d’Amato, C. (eds.): Collaboration and the Semantic Web: Social Networks, Knowledge Networks, and Knowledge Resources : IGI Global, 2012, pp. 149–167
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Kummer, T.-F. ; Leimeister, J. M. ; Bick, M.: Die Bedeutung von nationaler Kultur für die Gestaltung von Informationssystemen. In: WIRTSCHAFTSINFORMATIK vol. 54 (2012), Nr. 6, pp. 303–318. — 368
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Scholz, Christoph ; Atzmueller, Martin ; Stumme, Gerd:Analyzing the Predictability of Human Contacts: On Influence Factors and Stronger Ties (Extended Abstract).. In: Proc. LWA 2012 (KDML Special Track). Dortmund, Germany. : University of Dortmund, 2012
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Chin, A. ; Atzmueller, M. ; Helic, D. (eds.):Proceedings MSM 2012: Workshop on Modeling Social Media -- Collective Intelligence in Social Media. New York, NY, USA : ACM Press, 2012
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Comes, D. ; Evers, C. ; Geihs, K. ; A., Hoffmann ; Kniewel, R. ; Leimeister, J. M. ; Niemczyk, S. ; Roßnagel, A. ; et al.:Designing Socio-Technical Applications for Ubiquitous Computing - Results from a Multidisciplinary Case Study.. In: Göschka, K. M. ; Haridi, S. (eds.): Distributed Applications and Interoperable Systems (Stockholm 2012), Lecture Notes in Computer Science. vol. 7272. Berlin : Springer, 2012, pp. 194–201
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A major challenge for ubiquitous system design is creating applications that are legal-compatible and accepted by their intended users. Today’s European data protection principles contradict the ideas of ubiquitous computing. Additionally, users have to deal with unconventional interaction concepts leading to a low amount of trust and acceptance in such systems. Current development approaches do not sufficiently cover these concerns, as they do not systematically incorporate expertise from the relevant disciplines. We present a novel development approach for ubiquitous systems that explicitly addresses these concerns. Our primary task was to manage the increased number of stakeholders and dependencies, respectively conflicts between requirements of the particular disciplines. The approach incorporates predefined artifacts and a defined workflow with responsibilities, as well as suggesting how to develop mutual understanding. We apply this multidisciplinary approach to develop the ubiquitous application Meet-U.
Comes, D. ; Evers, C. ; Geihs, K. ; Hoffmann, A. ; Kniewel, R. ; Leimeister, J. M. ; Niemczyk, S. ; Roßnagel, A. ; et al.:Designing Socio-Technical Applications for Ubiquitous Computing - Results from a Multidisciplinary Case Study.. In: Göschka, K. M. ; Haridi, S. (eds.): Distributed Applications and Interoperable Systems (Stockholm 2012), Lecture Notes in Computer Science. Berlin : Springer, 2012, pp. 194–201
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A major challenge for ubiquitous system design is creating applications that are legal-compatible and accepted by their intended users. Today’s European data protection principles contradict the ideas of ubiquitous computing. Additionally, users have to deal with unconventional interaction concepts leading to a low amount of trust and acceptance in such systems. Current development approaches do not sufficiently cover these concerns, as they do not systematically incorporate expertise from the relevant disciplines. We present a novel development approach for ubiquitous systems that explicitly addresses these concerns. Our primary task was to manage the increased number of stakeholders and dependencies, respectively conflicts between requirements of the particular disciplines. The approach incorporates predefined artifacts and a defined workflow with responsibilities, as well as suggesting how to develop mutual understanding. We apply this multidisciplinary approach to develop the ubiquitous application Meet-U.
Comes, D. E. ; Evers, C. ; Geihs, K. ; Hoffmann, A. ; Kniewel, R. ; Leimeister, J. M. ; Niemczyk, S. ; Schmidt, L. ; et al.:Designing Socio-Technical Applications for Ubiquitous Computing – Results from a Multidisciplinary Case Study,.. In: Göschka, K. M. ; Haridi, S. (eds.): Distributed Applications and Interoperable Systems – 12th IFIP WG 6.1 International Conference Stockholm, Distributed Applications and Interoperable Systems – 12th IFIP WG 6.1 International Conference Stockholm. Heidelberg, 2012, pp. 194–201
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Comes, Diana ; Baraki, Harun ; Reichle, Roland ; Geihs, Kurt:BPRules and the BPR-Framework: Comprehensive Support for Managing QoS in Web Service Compositions.. In: 12th IFIP International Conference on Distributed Applications and Interoperable Systems (DAIS). Stockholm : Springer, 2012
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Dünnebeil, Sebastian ; Sunyaev, Ali ; Blohm, Ivo ; Leimeister, Jan Marco ; Krcmar, Helmut: Determinants of physicians’ technology acceptance for e-health in ambulatory care. In: International Journal of Medical Informatics (2012), Nr. 81, pp. 746–760. — EXT32
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Comes, Diana Elena ; Evers, Christoph ; Geihs, Kurt ; Hoffmann, Axel ; Kniewel, Romy ; Leimeister, Jan Marco ; Niemczyk, Stefan ; Roßnagel, Alexander ; et al.:Designing Socio-technical Applications for Ubiquitous Computing.. In: Göschka, K. M. ; Haridi, S. (eds.): Distributed Applications and Interoperable Systems. Berlin, Heidelberg : Springer Berlin Heidelberg, 2012 — ISBN 978-3-642-30823-9, pp. 194–201
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A major challenge for ubiquitous system design is creating applications that are legal-compatible and accepted by their intended users. Today's European data protection principles contradict the ideas of ubiquitous computing. Additionally, users have to deal with unconventional interaction concepts leading to a low amount of trust and acceptance in such systems. Current development approaches do not sufficiently cover these concerns, as they do not systematically incorporate expertise from the relevant disciplines. We present a novel development approach for ubiquitous systems that explicitly addresses these concerns. Our primary task was to manage the increased number of stakeholders and dependencies, respectively conflicts between requirements of the particular disciplines. The approach incorporates predefined artifacts and a defined workflow with responsibilities, as well as suggesting how to develop mutual understanding. We apply this multidisciplinary approach to develop the ubiquitous application Meet-U.
Seipel, Dietmar ; Neubeck, Philipp ; Köhler, Stefan ; Atzmueller, Martin:Mining Complex Event Patterns in Computer Networks.. In: Proc. ECML/PKDD Workshop on New Frontiers in Mining Complex Patterns. Bristol, UK, 2012
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Cramar, L. ; Hegenberg, J. ; Schmidt, L.:Assistenzsysteme zur Aufrechterhaltung des Situationsbewusstseins bei der Überwachung autonomer mobiler Roboter.. In: Gesellschaft für Arbeitswissenschaft e. V. (ed.): Gestaltung nachhaltiger Arbeitssysteme - Wege zur gesunden, effizienten und sicheren Arbeit: 58. Kongress der Gesellschaft für Arbeitswissenschaft (Kassel 2012). Dortmund : GfA-Press, 2012, pp. 269–272
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Eine wesentliche Voraussetzung für die Aufrechterhaltung des Situationsbewusstseins ist die korrekte Wahrnehmung und Interpretation der Umgebung mit ihren Elementen und Veränderungen. Die entscheidende Rolle spielen dabei die Umgebungsreize, die der Mensch unmittelbar aufnehmen kann. Im Fall einer Fernüberwachung, die über eine Benutzungsschnittstelle und damit indirekt erfolgt, kann die Wahrnehmung beispielsweise aufgrund des eingeschränkten Sichtfeldes, der Qualität übertragener Videodaten und der Tatsache, dass nur ein Teil menschlicher Modalitäten angesprochen wird, wesentlich beeinträchtigt werden. Durch eine gezielte Gestaltung der Benutzungsschnittstelle und die gezielte Entwicklung von Assistenzfunktionen zur Aufrechterhaltung des Situationsbewusstseins soll diesen Herausforderungen bei der Überwachung autonomer mobiler Roboter begegnet werden.
Roßnagel, A.:Datenschutz.. In: Andersen, U. ; Woyke, W. (eds.): Handwörterbuch des politischen Systems der Bundesrepublik Deutschland. 7. ed.. Wiesbaden, 2012, pp. 138–141
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Hofmann, A. ; Schulz, T. ; Hoffmann, H. ; Jandt, S. ; Roßnagel, A. ; Leimeister, Jan-Marco:Toward the Use of Software Requirement Patterns for legal Requirements.. In: , 2012
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Böhmann, T. ; Knackstedt, R. ; Leimeister, J. M. ; Nüttgens, M. ; Thomas, O.:Service Engineering & Management: Proceedings der Teilkonferenz im Rahmen der Multi-Konferenz Wirtschaftsinformatik. 1. ed.. Norderstedt : Books on Demand; ISBN: 978-3848221097, 2012
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Roßnagel, A.:Modernisierung des Datenschutzrechts.. In: Schmidt, J.-H. ; Weichert, T. (eds.): Datenschutz – Grundlagen, Entwicklungen und Kontroversen, Bundeszentrale für politischen Bildung. Bonn, 2012, pp. 331 – 344
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Hoss, D. ; Pocs, M. ; Roßnagel, A.:Diskussionsbericht zum Nutzerschutz im „Smart Home“.. In: Roßnagel, A. (ed.): Nutzerschutz - Rechtsrahmen, Technikpotenziale : Nomos, 2012, pp. 153–163
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Roßnagel, A.: Rechtsetzung zu Sicherheitsdiensten: Europäisierung ja, Monopolisierung nein!. In: MMR (2012), pp. 781–782
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David, K. ; Roßnagel, A. ; Skistims, H. ; Voigtmann, C.: Datenschutzgerechte Gestaltung von kontextvorhersagenden Algorithmen. In: Datenschutz und Datensicherheit (DuD) (2012), Nr. 1, pp. 31–36
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Atzmueller, Martin ; Doerfel, Stephan ; Hotho, Andreas ; Mitzlaff, Folke ; Stumme, Gerd:Face-to-Face Contacts at a Conference: Dynamics of Communities and Roles.. In: Modeling and Mining Ubiquitous Social Media, LNAI. vol. 7472. Heidelberg, Germany : Springer Verlag, 2012
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Cramar, L. ; Hegenberg, J. ; Schmidt, L.:Ansatz zur experimentellen Ermittlung von Gesten zur Steuerung eines mobilen Roboters.. In: Automatisierungstechnik, V.-G. M.- und (ed.): Useware 2012: Mensch-Maschine-Interaktion (Kaiserslautern 2012), VDI-Berichte. Düsseldorf : VDI-Verlag, 2012, pp. 173–183
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Vorwissen, das die Grundlage einer intuitiven Interaktion darstellt, kann verschiedene Quellen haben. Gesten, die zur Steuerung eines mobilen Roboters herangezogen werden können, können ihren Ursprung in Alltagserfahrungen haben, wie beispielsweise dem Wegweisen, und werden durch die relativ häufige Verwendung meistens unbewusst angewendet. Im Gegensatz dazu kann die Verwendung von erlernten Gesten, die nicht zum intuitiven Gestenvokabular gehören, eine potentielle Fehlerquelle darstellen. In einem Experiment mit zehn Versuchspersonen wurden im ersten Durchlauf intuitive Gesten ermittelt, um im zweiten Versuchsdurchlauf durch erlernte Gesten ersetzt zu werden. Die Durchführungszeit sowie die Anzahl der Kollisionen und der Abweichungen von den vorgegebenen Gesten wurden dabei ermittelt und dienten als Effizienz- und Zuverlässigkeitsindikatoren. Im Ergebnis wurden Empfehlungen für die Auswahl von Gesten zur Steuerung mobiler Roboter abgeleitet.
Roßnagel, A. (ed.):Nutzerschutz – Rechtsrahmen, Technikpotentiale, Wirtschaftskonzepte, Schriftenreihe des Instituts für Europäisches Medienrecht (EMR). vol. 41. Baden-Baden : Nomos, 2012
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Macek, Bjoern Elmar ; Scholz, Christoph ; Atzmueller, Martin ; Stumme, Gerd:Anatomy of a Conference.. In: Proc. 23rd ACM Conference on Hypertext and Social Media, HT ’12, 2012
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Evers, C. ; Kniewel, R. ; Geihs, K. ; Schmidt, L.:Achieving User Participation for Adaptive Applications.. In: Bravo, J. ; López-de Ipina, D. ; Moya, F. (eds.): Ubiquitous Computing and Ambient Intelligence: 6th International Conference (Vitoria-Gasteiz 2012), Lecture Notes in Computer Science. vol. 7656. Berlin : Springer, 2012, pp. 200–207
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Adaptive applications establish the basis for many ubiquitous computing scenarios as they can dynamically adapt to changing contexts. But adaptive applications lack of success when the adaptive behaviour does not correspond to the user’s interaction habits. A user study revealed that such applications are not satisfying for complex scenarios with a high degree of user interaction. We claim that there must be a trade-off between automation and user participation. By extending an existing adaptation middleware with capabilities to respect user preference and interaction behaviour we demonstrate how to integrate the user in the self-adaptation loop. Interdisciplinary results from the fields of usability engineering and interaction design include the need for an adaptation notification concept to avoid mismatching adaptation behaviour.
Sigg, S. ; Gordon, D. ; v. Zengen, G. ; Beigl, M. ; Haseloff, S. ; David, K.: Investigation of Context Prediction Accuracy for Different Context Abstraction Levels. In: IEEE Transactions on Mobile Computing vol. 11 (2012), Nr. 6, pp. 1047–1059
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Context prediction is the task of inferring information about the progression of an observed context time series based on its previous behaviour. Prediction methods can be applied at several abstraction levels in the context processing chain. In a theoretical analysis as well as by means of experiments we show that the nature of the input data, the quality of the output, and finally the flow of processing operations used to make a prediction, are correlated. A comprehensive discussion of basic concepts in context prediction domains and a study on the effects of the context abstraction level on the context prediction accuracy in context prediction scenarios is provided. We develop a set of formulae that link scenario-dependent parameters to a probability for the context prediction accuracy. It is demonstrated that the results achieved in our theoretical analysis can also be confirmed in simulations as well as in experimental studies.
Barz, T. ; Bonow, G. ; Hegenberg, J. ; Habib, K. ; Cramar, L. ; Welle, J. ; Schulz, D. ; Kroll, A. ; et al.:Unmanned Inspection of Large Industrial Environments: Insights into Research Project RoboGasInspector.. In: Aschenbruck, N. ; Martini, P. ; Meier, M. ; Tölle, J. (eds.): Future Security: 7th Security Research Conference (Bonn 2012), Communications in Computer and Information Science. Berlin : Springer, 2012, pp. 216–219
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Industrial plants are a vital and common asset of modern society in a various number of ways. Safety of large industrial complexes that handle hazardous chemical materials is of utter importance to prevent harm to employees, general population, our natural environment and valuable infrastructure. Therefore, beside the plant owner’s own financial interest to guarantee faultless and safe operation, legal regulations have to be adhered due to strong public interest as well. An important measure to ensure safety is the implementation of regular inspection tours by maintenance personnel, who examine the often widely-stretched process infrastructure on foot and locally search for signs of beginning leakage. The Research Project RoboGasInspector was started to develop new means of aiding with the fulfillment of this essential task. This article gives an insight into this ongoing research project, where autonomous mobile robotics is combined with laser-based remote gas detection technology in order to create a proof-of-concept inspection system prototype, which can relieve humans of this monotonous and highly repetitive work.
Peters, Christoph ; Menschner, Philipp:Towards a Typology for Telemedical Services.. In: European Conference on Information Systems (ECIS). Barcelona, Spain, 2012. — 316
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Holzapfel, Sebastian ; Wacker, Arno ; Weis, Torben ; Wander, Matthäus:An Architecture for Complex Peer-to-Peer Systems.. In: Proceedings of the 4th IEEE International Workshop on Digital Entertainment, Networked Virtual Environments, and Creative Technology, DENVECT 2012, held in conjunction with the IEEE Consumer Communications and Networking Conference, CCNC 2012. Las Vegas, Nevada, 2012. — USA January 14-17, 2012(to appear)
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David, K. ; Jefferies, N.: Wireless Visions: A Look to the Future by the Fellows of the WWRF. In: IEEE Vehicular Technology Magazine vol. 7 (2012), Nr. 4, pp. 26–36
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In less than two decades, mobile communication has developed from a niche application to a mass-market high-tech product, having experienced an unprecedented growth, never achieved by any other technology, whether radio, television, or even the Internet. Thirteen well-known experts, all of them honored as WWRF Fellows, have been interviewed and shared their expertise and opinions on ten questions about the wireless future, as presented here. The answers span a wide field from air interfaces, networks, devices, applications, to new ways of interaction, to name a few. Although the ideas and views presented here are not one common vision, they should provide stimulating ideas and questions for future research, and it will be exciting to see how things are really going to develop. The Fellows' ideas also clearly show the fascination, impact, and opportunities wireless communications has and will have in the future.
Hoffmann, A. ; Schulz, T. ; Jpffmann, H. ; Jandt, S. ; Roßnagel, A. ; Leimeister, Jan-Marco:Towards the Use of Software Requirement Patterns for Legal Requirements.. In: , 2012, pp. 50–63
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Peters, C. ; Leimeister, J. M.: Produktivitätssteigerungen durch telemedizinische Dienstleistungen. In: Krankenhaus-IT-Journal (2012), Nr. 2, pp. 22–23. — 318
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Balby Marinho, L. ; Hotho, A. ; Jäschke, R. ; Nanopoulos, A. ; Rendle, S. ; Schmidt-Thieme, L. ; Stumme, G. ; Symeonidis, P.:Recommender Systems for Social Tagging Systems, SpringerBriefs in Electrical and Computer Engineering : Springer, 2012 — ISBN 978-1-4614-1893-1
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Social Tagging Systems are web applications in which users upload resources (e.g., bookmarks, videos, photos, etc.) and annotate it with a list of freely chosen keywords called tags. This is a grassroots approach to organize a site and help users to find the resources they are interested in. Social tagging systems are open and inherently social; features that have been proven to encourage participation. However, with the large popularity of these systems and the increasing amount of user-contributed content, information overload rapidly becomes an issue. Recommender Systems are well known applications for increasing the level of relevant content over the “noise” that continuously grows as more and more content becomes available online. In social tagging systems, however, we face new challenges. While in classic recommender systems the mode of recommendation is basically the resource, in social tagging systems there are three possible modes of recommendation: users, resources, or tags. Therefore suitable methods that properly exploit the different dimensions of social tagging systems data are needed. In this book, we survey the most recent and state-of-the-art work about a whole new generation of recommender systems built to serve social tagging systems. The book is divided into self-contained chapters covering the background material on social tagging systems and recommender systems to the more advanced techniques like the ones based on tensor factorization and graph-based models.
Kummer, T.-F. ; Leimeister, J. M. ; Bick, M.: On the Importance of National Culture for the Design of Information Systems. In: Business & Information Systems Engineering vol. 4 (2012), Nr. 6, pp. 317–330. — 371
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Schmidt, L. ; Kroll, A.: RoboGasInspector - Überblick zum Projekt. In: Forum Forum Robotics, Automation & Vision, Hannover Messe, Vortrag, Forum Forum Robotics, Automation & Vision, Hannover Messe, Vortrag.. Hannover (2012)
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Jandt, S. ; Desoi, M.: Zulässige Erhebung von Daten zu Forschungszwecken. In: Datenschutz und Datensicherheit (2012), pp. 895–901
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Geihs, K. ; Leimeister, J. M. ; Roßnagel, A. ; Schmidt, L.:On Socio-technical Enablers for Ubiquitous Computing Applications.. In: 3rd Workshop on Enablers for Ubiquitous Computing and Smart Services: IEEE/IPSJ 12th International Symposium on Applications and the Internet (Izmir 2012). Los Alamitos : IEEE, 2012, pp. 405–408
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The focus of this paper is on context-aware, selfadaptive ubiquitous computing applications that involve mobile users. The development of such applications is inherently complex for two main reasons: From a technical perspective, context management and adaptation management add complexity to the application design and implementation. From a socio-technical perspective, concerns and requirements related to the social embedding and user acceptance must be addressed in the application design and lead to additional complexity, particularly because sensitive personal data is collected, processed, stored and communicated by such applications. In this position paper we present an analysis of the problem space and a solution approach. We have developed an interdisciplinary methodology that systematically addresses technical as well as non-technical concerns. Our conclusion is that solving the socio-technical challenges will be a key enabler for ubiquitous computing.
Söllner, Matthias ; Hoffmann, Axel ; Hoffmann, Holger ; Leimeister, Jan Marco: Vertrauen als Designaspekt – Systematische Ableitung vertrauensunterstützender Komponenten am Beispiel einer mobilen Anwendung. In: VHB Jahrestagung 2011. Kaiserslautern, Germany (2012), Nr. 73
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Vertrauensaufbau und Vertrauensunterstützung sind erfolgskritisch für die Adoption neuer IT-Systeme. Umso erstaunlicher ist, dass in der Literatur kaum etwas zur systematischen Integration der Vielzahl an verhaltensorientierten Erkenntnissen zu Vertrauen in und um IT-Systeme in deren Entwicklung zu finden ist. Das Ziel dieses Artikels ist die Entwicklung einer Methode zur Ableitung vertrauensunterstützender Komponenten für sozio-technische ubiquitäre Systeme. Die Methode wird exemplarisch auf die Entwicklung einer ubiquitären Restaurantempfehlungsanwendung angewandt. Die Anwendung wird hierdurch um vier vertrauensunterstützende Komponenten angereichert. Die so entwickelte Anwendung wird anschließend im Rahmen eines Laborexperiments mit 166 Probanden evaluiert. Hierbei wird gezeigt, dass sowohl das Vertrauen in das sozio-technische ubiquitäre System, als auch die Absicht es zu nutzen signifikant erhöht werden konnten. Soweit es den Autoren bekannt ist, beschreibt dieser Artikel als Erster, wie Vertrauen in systematischer Art und Weise in die Entwicklung sozio-technischer ubiquitärer Systeme einbezogen werden und welchen Nutzen dies stiften kann.
Söllner, Matthias ; Hoffmann, Axel ; Hoffmann, Holger ; Wacker, Arno ; Leimeister, Jan Marco:Understanding the Formation of Trust in IT Artifacts.. In: International Conference on Information Systems (ICIS). Orlando Florida, USA, 2012 — ISBN 978-3-319-05043-0
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IT artifacts often take the role of a trustee in a trust relationship between users and IT artifacts. The goal of this paper is to increase the understanding of the formation of trust in such trust relationships. Instead of using the predominant theoretical foundation of interpersonal trust, we use the theoretical foundation of trust in automation from the HCI discipline for studying the formation of trust. Since we aim at creating insights on the formation of trust and its dimensions, we develop a formative first-order, formative second-order measurement model for trust. To evaluate the impact of the single indicators and dimensions on trust, we conduct a laboratory experiment. Our results show that the dimensions performance, process and purpose have a comparable impact on trust, and that indicators related to user data are especially important. The results complement existing insights, deepening the understanding of the formation of trust in IT artifacts.
Meis, J. ; Menschner, P. ; Leimeister, J.M.:Modellierung von IT-gestützten wohnbegleitenden Dienstleistungen – Anforderungen und Lösungsansatz.. In: Tagungsband der Multikonferenz Wirtschaftsinformatik (MKWI) 2012. Braunschweig, Germany, 2012. — 317
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Keim, Stephan ; Peters, Christoph ; Leimeister, Jan Marco:Standardisierung und (Teil-) Automatisierung telemedizinischer Dienstleistungen.. In: Working Paper Series, Nr. 1. Kassel Germany, 2012. — AP1, pp. 1–18
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Hick, Sibylle ; Esslinger, Bernhard ; Wacker, Arno:Reducing the Complexity of Understanding Cryptology using CrypTool.. In: The 10th International Conference on Education and Information Systems,Technologies and Applications (EISTA 2012). Orlando, Florida, USA, 2012
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Bitzer, Philipp ; Lehmann, Katja ; Leimeister, Jan Marco:A Literature Review on the Indicators for the Measurement of Technology Mediated Learning Productivity.. In: Proceedings of the Eighteenth Americas Conference on Information Systems (AMCIS). Seattle, Washington, USA, 2012. — 340
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Hirdes, E. M. ; Thillainathan, N. ; Leimeister, J. M.:Towards Modeling Educational Objectives in Serious Games.. In: Pedagogically-driven Serious Games 2012. Saarbrücken, Germany, 2012. — 358
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Gürtler, Matthias ; Kortler, Sebastian ; Helms, Bergen ; Berkovich, Marina ; Leimeister, Jan Marco ; Krcmar, Helmut ; Shea, Kristina ; Lindemann, Udo ; et al.:Von Anforderungslisten zum konzeptionellen Design – Funktionsbasierte Analyse von Anforderungen an Product-Service Systems.. In: Thomas, O. ; Nüttgens, M. (eds.): Dienstleistungsmodellierung 2012. vol. 1, 2012. — 344, pp. 75–96
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Söllner, Matthias ; Hoffmann, Axel ; Hoffmann, Holger ; Wacker, Arno ; Leimeister, Jan Marco:Understanding the Formation of Trust in IT Artefacts.. In: International Conference on Information Systems (ICIS 2012). Orlando, Florida, USA, 2012
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Prinz, A. ; Menschner, P. ; Leimeister, J. M.:NFC-based Electronic Data Capture Systems – The Case of a Quality of Life Questionnaire.. In: European Conference on Information Systems (ECIS). Barcelona, Spain, 2012. — 309
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Bitzer, P. ; Lehmann, K. ; Hirdes, E.M. ; Thillainathan, N.:Managing the Masses - Developing an Educational Dashboard for Lecturers in Large-Scale Lectures.. In: European Conference on Information Systems (ECIS). Barcelona, Spain, 2012. — 325
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Prinz, A. ; Menschner, P. ; Leimeister, J. M.: Electronic Data Capture in HealthCare - NFC as Easy Way for Self reported Health Status Information. In: Health Policy and Technology vol. 1 (2012), Nr. 3. — 341
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Roßnagel, Alexander ; Richter, Philipp ; Nebel, Maxi: Internet Privacy aus rechtswissenschaftlicher Sicht. In: Springer (ed.) Buchmann (Hrsg.), Internet Privacy: Eine multidisziplinäre Bestandsaufnahme/ A multidisciplinary analysis (acatech STUDIE) (2012), pp. S. 281–326
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Berkovich, Marina ; Leimeister, Jan Marco ; Hoffmann, Axel ; Krcmar, Helmut: A requirements data model for product service systems. In: London, S. (ed.) Requirements Engineering vol. 19 (2012), Nr. 2, pp. 161–186
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Ranke, J. ; Roßnagel, A.: enstleistungsfreiheit, Wettbewerbsschutz und Urheberrecht im Satellitenfernsehen – Auswirkungen des EuGH-Urteils zu territorialen Exklusivitätsvereinbarungen von Lizenzen. In: Multimedia und Recht vol. 15 (2012), Nr. 3, pp. 152–157
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Ranke, J. ; Roßnagel, A.: Dienstleistungsfreiheit, Wettbewerbsschutz und Urheberrecht im Satellitenfernsehen – Auswirkungen des EuGH-Urteils zu territorialen Exklusivitätsvereinbarungen von Lizenzen. In: Multimedia und Recht (MMR) (2012), Nr. 3, pp. 152–157
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Prinz, A. ; Leimeister, J. M.: Mobile Systeme im Gesundheitswesen - NFC-basiertes Electronic Data Capturing. In: HMD Praxis der Wirtschaftsinformatik vol. 286. Heidelberg, Germany, dpunkt Verlag (2012), pp. 73–82. — 322
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Jäschke, Robert ; Hotho, Andreas ; Mitzlaff, Folke ; Stumme, Gerd:Challenges in Tag Recommendations for Collaborative Tagging Systems.. In: Pazos Arias, J. J. ; Fernández Vilas, A. ; Díaz Redondo, R. P. (eds.): Recommender Systems for the Social Web, Intelligent Systems Reference Library. vol. 32. Berlin/Heidelberg : Springer, 2012 — ISBN 978-3-642-25694-3, pp. 65–87
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Originally introduced by social bookmarking systems, collaborative tagging, or social tagging, has been widely adopted by many web-based systems like wikis, e-commerce platforms, or social networks. Collaborative tagging systems allow users to annotate resources using freely chosen keywords, so called tags . Those tags help users in finding/retrieving resources, discovering new resources, and navigating through the system. The process of tagging resources is laborious. Therefore, most systems support their users by tag recommender components that recommend tags in a personalized way. The Discovery Challenges 2008 and 2009 of the European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases (ECML PKDD) tackled the problem of tag recommendations in collaborative tagging systems. Researchers were invited to test their methods in a competition on datasets from the social bookmark and publication sharing system BibSonomy. Moreover, the 2009 challenge included an online task where the recommender systems were integrated into BibSonomy and provided recommendations in real time. In this chapter we review, evaluate and summarize the submissions to the two Discovery Challenges and thus lay the groundwork for continuing research in this area.
Landia, Nikolas ; Anand, Sarabjot Singh ; Hotho, Andreas ; Jäschke, Robert ; Doerfel, Stephan ; Mitzlaff, Folke:Extending FolkRank with content data.. In: Proceedings of the 4th ACM RecSys workshop on Recommender systems and the social web, RSWeb ’12. Dublin, Ireland : ACM, 2012 — ISBN 978-1-4503-1638-5, pp. 1–8
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Real-world tagging datasets have a large proportion of new/ untagged documents. Few approaches for recommending tags to a user for a document address this new item problem, concentrating instead on artificially created post-core datasets where it is guaranteed that the user as well as the document of each test post is known to the system and already has some tags assigned to it. In order to recommend tags for new documents, approaches are required which model documents not only based on the tags assigned to them in the past (if any), but also the content. In this paper we present a novel adaptation to the widely recognised FolkRank tag recommendation algorithm by including content data. We adapt the FolkRank graph to use word nodes instead of document nodes, enabling it to recommend tags for new documents based on their textual content. Our adaptations make FolkRank applicable to post-core 1 ie. the full real-world tagging datasets and address the new item problem in tag recommendation. For comparison, we also apply and evaluate the same methodology of including content on a simpler tag recommendation algorithm. This results in a less expensive recommender which suggests a combination of user related and document content related tags.</p><p>Including content data into FolkRank shows an improvement over plain FolkRank on full tagging datasets. However, we also observe that our simpler content-aware tag recommender outperforms FolkRank with content data. Our results suggest that an optimisation of the weighting method of FolkRank is required to achieve better results.
Lemmerich, Florian ; Becker, Martin ; Atzmueller, Martin:Generic Pattern Trees for Exhaustive Exceptional Model Mining.. In: Proc. ECML/PKDD 2012: European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases. Heidelberg, Germany : Springer Verlag, 2012
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Söllner, M. ; Hoffmann, A. ; Hoffmann, H. ; Leimeister, J. M.:How to Use Behavioral Research Insights on Trust for HCI System Design.. In: ACM SIGCHI Conference on Human Factors in Computing Systems (CHI). Austin, Texas, USA, 2012. — 330
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Lamla, Jörn:›Netizenship‹ oder Alltagsökonomie? Typologische Betrachtungen über die Motivlagen und Beteiligungsmuster von Internetnutzern sowie die Zukunft digitaler Demokratie.. In: Beyreuther, T. ; Duske, K. ; Eismann, C. ; Hornung, S. ; Kleemann, F. (eds.): consumers@work. Zum neuen Verhältnis von Unternehmen und Usern im Web 2.0.. Frankfurt/ New York : Campus, 2012, pp. 152–179
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Boelmann, Christopher ; Weis, Torben ; Engel, Michael ; Wacker, Arno:Self-Stabilizing Micro Controller for Large-Scale Sensor Networks in Spite of Program Counter Corruptions due to Soft Errors.. In: 18th IEEE International Conference on Parallel and Distributed Systems (ICPADS 2012). Singapore, 2012
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Klotz, Michael ; Sulk, Ingolf ; Wieck, Enrico:GDPdU-Konformität von Projektmanagementsoftware – Exemplarische Konzeption und Umsetzung.. In: Klotz, M. (ed.): FH Stralsund, SIMAT Stralsund Information Management Team (SIMAT). Stralsund, Germany, 2012
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Hegenberg, J. ; Cramar, L. ; Schmidt, L.:Teleoperationsunterstützung über ein HMD und ein kopfbewegungsgesteuertes Stereokamerasystem auf einem entfernten mobilen Roboter.. In: Arbeitsmedizin, B. für A. und (ed.): Datenbrillen: Aktueller Stand von Forschung und Umsetzung sowie zukünftiger Entwicklungsrichtungen (Dortmund 2011). Dortmund : BAuA, 2012, pp. 29–38
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Dieser Beitrag beschreibt anhand eines konkreten Anwendungsfalls aus dem Bereich der Robotik, wie die Fähigkeiten des Menschen bei der Gestaltung einer Head-Mounted-Display-basierten Mensch-Roboter-Schnittstelle technisch umgesetzt werden können. Den inhaltlichen Rahmen bildet das Forschungsprojekt RoboGasInspector, dessen Ziel es ist, ein innovatives Mensch-Maschine-System mit mobilen und mit Gasfernmesstechnik ausgestatteten Inspektionsrobotern zu entwickeln und zu evaluieren, welches die Detektion und Ortung von Gaslecks in räumlich ausgedehnten technischen Anlagen weitgehend autonom bewältigt. Nach aktuellem Stand von Forschung und Entwicklung kann ein technisches System insbesondere in dynamischen Umgebungen nicht absolut fehlerfrei und ausfallsicher realisiert werden. Aus Gründen der Akzeptanz und der Anlagensicherheit ist deshalb eine Überwachung der mobilen Roboter erforderlich, die sich teilautonom durch die Anlage bewegen. Das Systemkonzept sieht eine zentrale Leitwarte mit zwei Benutzungsschnittstellen vor. Die eine Schnittstelle dient der Planung, Überwachung und Dokumentation der autonomen Funktion des Systems und die andere der Teleoperation des Roboters durch einen menschlichen Operator. Die Teleoperation soll menschliche Fähigkeiten synergetisch in das weitgehend automatisierte System integrieren und wird eingesetzt, falls der Mensch in der Lage ist, bei der Bearbeitung einer Aufgabe bessere Ergebnisse zu erzielen. Zur Unterstützung der Teleoperation wird ein Assistenzsystem eingesetzt, das dem Operator die visuellen Informationen liefert, die er benötigt um bei der Steuerung des Roboters am entfernten Einsatzort sein Situationsbewusstsein aufrechtzuerhalten. Das Assistenzsystem besteht aus einem Head-Mounted Display zur Ausgabe augmentierter Videobilder, die von einem Stereokamerasystem auf dem Roboter aufgezeichnet werden. Die Gestaltung der Teleoperationsunterstützung zielt darauf ab, dem Nutzer das Gefühl zu vermitteln mit den eigenen Augen aus der Perspektive des Roboters zu sehen bzw. im Sinne einer Telepräsenz selber vor Ort zu sein. Dazu wird bei der technischen Umsetzung von den menschlichen Fähigkeiten ausgegangen. Analogien zwischen technischen Parametern und quantitativen Maßen menschlicher Fähigkeiten werden genutzt, in dem die Parameter den zugehörigen Maßen angenähert werden. Eine Auswahl dieser Analogien wird in diesem Beitrag wiedergegeben und die Nachempfindung der menschlichen Wahrnehmung und Motorik durch Gegenüberstellung quantitativer Wertpaare beurteilt.
Mitzlaff, Folke ; Stumme, Gerd: Relatedness of Given Names. In: Human Journal vol. 1, Academy of Science and Engineering (2012), Nr. 4, pp. 205–217
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As a result of the author's need for help in finding a given namefor the unborn baby, nameling, a search engine for given names, based on data from the ``Social Web'' was born. Within less than six months, more than 35,000 users accessed nameling with more than 300,000 search requests, underpinning the relevance of the underlying research questions. The present work proposes a new approach for discovering relations among given names, based on co-occurrences within Wikipedia. In particular, the task of finding relevant names for a given search query is considered as a ranking task and the performance of different measures of relatedness among given names are evaluated with respect to nameling's actual usage data. We will show that a modification for the PageRank algorithm overcomes limitations imposed by global network characteristics to preferential PageRank computations. By publishing the considered usage data, the research community is stipulated for developing advanced recommendation systems and analyzing influencing factors for the choice of a given name.
Mitzlaff, Folke ; Stumme, Gerd:Ranking Given Names.. In: Marathe, M. ; Contractor, N. (eds.): Proceedings of the 1st ASE International Conference on Social Informatics : IEEE computer society, 2012, pp. 185–191
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Henning, Maria ; Demirel, Denise ; Volkamer, Melanie:Öffentlichkeit vs. Verifizierbarkeit – Inwieweit erfüllt mathematische Verifizierbarkeit den Grundsatz der Öffentlichkeit der Wahl.. In: Transformation juristischer Sprache, Tagungsband des 15. Internationalen Rechtsinformatik Symposiums (IRIS), 2012, pp. 213–220
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Henning, M. ; Volkamer, M. ; Budurushi, J.: Transparentes eVoting - Elektronische Kandidatenauswahl und automatisierte Stimmermittlung am Beispiel hessischer Kommunalwahlen. In: Die Öffentliche Verwaltung (DÖV) (2012), pp. 789 – 796
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Mitzlaff, Folke ; Stumme, Gerd:Namelings - Discover Given Name Relatedness Based on Data from the Social Web.. In: Aberer, K. ; Flache, A. ; Jager, W. ; Liu, L. ; Tang, J. ; Guéret, C. (eds.): SocInfo, Lecture Notes in Computer Science. vol. 7710 : Springer, 2012 — ISBN 978-3-642-35385-7, pp. 531–534
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Prinz, Andreas ; Menschner, Philipp ; Leimeister, J. M.:Has NFC the potential to revolutionize self-reported electronic data capture? - An empirical comparison of different interaction concepts.. In: Proceedings of ACM CHI Conference on Human Factors in Computing Systems, CHI’12. Austin, Texas, USA, 2012. — 310
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Heinson, D.:Datenschutzrechtliche Grenzen interner Ermittlungen.. In: Handschuh, A./Ring, G.: "Sicher forschen und entwickeln", 1. Freiberger Sicherheitskonferenz. Baden-Baden : Nomos Verlagsgesellschaft, 2012
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Hegenberg, J. ; Röllke, A. ; Cramar, L. ; Schmidt, L.:Ergonomische Gestaltung einer kopfbewegungsbasierten Steuerung eines Stereokamerasystems auf einem entfernten mobilen Roboter.. In: Gesellschaft für Arbeitswissenschaft e. V. (ed.): Gestaltung nachhaltiger Arbeitssysteme - Wege zur gesunden, effizienten und sicheren Arbeit: 58. Kongress der Gesellschaft für Arbeitswissenschaft (Kassel 2012). Dortmund : GfA-Press, 2012, pp. 249–252
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Inhalt dieses Beitrags ist die Gestaltung einer kopfbewegungsbasierten Steuerung für ein schwenk- und neigbares Kamerasystem. Es wird ein Überblick über die Anwendung und die technische Realisierung gegeben sowie die Ergebnisse einer ersten Evaluation vorgestellt, die den Vergleich mit konventionellen Eingabegeräten und die Anfälligkeit für das Auftreten der Simulatorkrankheit untersucht.
Schenk, M. ; Niemann, J. ; Reinmann, G. ; Roßnagel, A. (eds.):Digitale Privatsphäre – Heranwachsende und Datenschutz auf sozialen Netwerkplattformen, Schriftenreihe Medienforschung der Landesanstalt für Medien NRW (LfM). vol. 71. Berlin : Vistas, 2012
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Hegenberg, J. ; Cramar, L. ; Schmidt, L.:Task- and User-Centered Design of a Human-Robot System for Gas Leak Detection: From Requirements Analysis to Prototypical Realization.. In: Petrovic, I. ; Korondi, P. (eds.): 10th International IFAC Symposium on Robot Control (Dubrovnik 2012). Dubrovnik : IFAC, 2012, pp. 793–798
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Lots of industrial plants are regularly inspected for irregularities such as gas leaks. This is done by plant personnel via visual, aural, olfactory, and gas detector based search. Mobile robots equipped with several sensors are an opportunity to free personnel from this monotone repetitive task. A task- and user-centered design approach was chosen to assure an efficient and effective human-robot interaction and to enhance the acceptance of the developed human-machine system. In the first step, current practices were surveyed and analyzed. Then, system requirements were derived and technically realized, to iteratively evaluate their usability. This article illustrates this design approach by exemplarily presenting requirements and their realization.
Menschner, P. ; Leimeister, J. M.:Devising a Method for Developing Knowledge-Intense, Person-Oriented Services - Results from Early Evaluation.. In: 45. Hawaii International Conference on System Sciences (HICSS). Maui, USA, 2012. — 297 (01-12)
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Koene, Philip ; Köbler, Felix ; Esch, Sebastian ; Leimeister, Jan Marco ; Krcmar, Helmut:Design and evaluation of a service-oriented collaborative consumption platform for the elderly.. In: Konstan, J. A. ; Chi, E. H. ; Höök, K. (eds.): CHI Extended Abstracts on Human Factors in Computing Systems. New York, NY, USA : ACM, 2012 — ISBN 978-1-4503-1016-1, pp. 2537–2542
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Blohm, I. ; Leimeister, J. M. ; Krcmar, H.:Absorption Processes and IT Capabilities in Open Innovation Communities.. In: Pre-ICIS 2012 SIM Academic Workshop. AIS, Orlando, FL, USA, 2012. — 360
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Menschner, P. ; Prinz, A. ; Leimeister, J.M.:Service Engineering für IT-basierte Dienstleistungen 50+.. In: Shire, K. ; Leimeister, J. (eds.): Technologiegestützte Dienstleistungsinnovation in der Gesundheitswirtschaft. Wiesbaden, Germany : Gabler Verlag, 2012. — 315, pp. 111–133
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Domhardt, M. ; Schmidt, L.:Leitfadengestützte Modellierung des Nutzungskontextes.. In: Gesellschaft für Arbeitswissenschaft e. V. (ed.): Gestaltung nachhaltiger Arbeitssysteme - Wege zur gesunden, effizienten und sicheren Arbeit: 58. Kongress der Gesellschaft für Arbeitswissenschaft (Kassel 2012). Dortmund : GfA-Press, 2012, pp. 487–490
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Das Verständnis des Nutzungskontextes ist der Ausgangspunkt für die menschzentrierte Gestaltung gebrauchstauglicher interaktiver Systeme. Zur Ermittlung des Nutzungskontextes stehen unterschiedliche Methoden zur Verfügung, deren zentraler Bestandteil die Befragung von typischen Nutzern ist. Bei neuartigen Systemen oder Technologien sind diese Nutzer jedoch nicht vorhanden. Der Beitrag gibt eine Übersicht über die einzelnen Methoden und zeigt am Beispiel einer Ladestation für Elektromobile einen Weg, wie der Nutzungskontext auch von potentiellen Nutzern methodisch erhoben werden kann.
Blohm, Iva ; Rieger, Markus ; Leimeister, Jan Marco ; Krcmar, Helmut: Scorecard im Einsatz: Controlling von Innovationscommunities. In: Journal Arbeit vol. 11 (2012), Nr. 1, pp. 31–32. — 346
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Johannes, Paul C.: Das Recht des Forschers auf Datenschutz.. In: Datenschutz und Datensicherheit vol. 36 (2012), Nr. 11, pp. 817–822
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Hartmann, M. ; Bretschneider, U. ; Prinz, A. ; Leimeister, J. M.:Patienten als Innovatoren – Eine modulare Erweiterung einer Patientencommunity zur Ideenschmiede.. In: Informatik 2012 - Game IT: Der Einsatz von IT-basierten Spielen und Spielmechaniken im organisationalen Kontext. Braunschweig, Germany, 2012. — 335
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Hartmann, M. ; Bretschneider, U. ; Leimeister, J. M.:Establishing Online Communities - Only trial & error?. In: International Society for Professional Innovation Management (ISPIM). Barcelona, Spain, 2012. — 336
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Blohm, Ivo ; Riedl, Christoph ; Füller, Johann ; Köroglu, Orhan ; Leimeister, Jan Marco ; Krcmar, Helmut:The Effects of Prediction Market Design and Price Elasticity on Trading Performance of Users: An Experimental Analysis.. In: Proceedings Collective Intelligence 2012. Cambridge, MA, USA, 2012. — EXT11
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Boos, Carina ; Wirtschaftsrecht, F. (ed.):Technische Konvergenz im Hybrid-TV und divergenter Rechtsrahmen für Fernsehen und Internet.. vol. 13 : university press, 2012
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Bretschneider, U. ; Zogaj, S. ; Leimeister, J.M.:Wettbewerb vs. Kollaboration: Wie verhalten sich Teilnehmer in Ideenwettbewerben und Ideen Communities?. In: VHB Jahrestagung 2012. Bozen/Bolzano, Italy, 2012. — 321
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Potthoff, Jan ; Johannes, Paul C. ; Rieger, Sebastian:Enhancing the Provability in Digital Archives by Using a Verifiable Metadata Analysis Web Service.. In: ICIW 2012 - The Seventh International Conference on Internet and Web Applications and Service : XPS, 2012, pp. 113–117
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Hühnlein, Detlef ; Jandt, Silke ; Korte, Ulrike ; Nebel, Maxi ; Schumacher, Astrid: Anwendung der TR-RESISCAN und TR-ESOR im Gesundheitswesen. In: GI-GMDS-Jahrestagung 2012, G.-L. (ed.) (2012)
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Nägle, S. ; Schmidt, L:Computer Acceptance of Older Adults.. In: : Work 41 (2012), 2012, pp. 3541–354
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Schmidt, L.: Objektive Bewertung der Mensch-Maschine-Interaktion mit Simulation und Prototypen: Aufmerksamkeit, Emotion und Beanspruchung - der Nutzer verrät doch mehr als er sagt: Methoden, Werkzeuge, Projektbeispiele. In: World Usability Day 2012, Vortrag, World Usability Day 2012, Vortrag.. Kassel (2012)
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Bretschneider, Ulrich ; Leimeister, Jan Marco: RFID-Technologie für das Eventmanagement. In: WiK-Zeitschrift für die Sicherheit der Wirtschaft (2012), Nr. 5, pp. 38–40. — 348
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Schulz, T. ; Roßnagel, A. ; David, K.: Datenschutz bei kommunizierenden Assistenzsystemen Wird die informationelle Selbstbestimmung von der Technik überrollt?. In: ZD (2012), pp. 510–515
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Gierczak, Michael ; Söllner, Matthias ; Leimeister, Jan Marco:Untersuchung bestehender Geschäftsmodelle etablierter Cloud Anbieter.. In: ConLife 2012 Academic Conference. Cologne, Germany, 2012. — 339
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Malinka, J. ; Widy, O. ; Schmidt, L.:Ambient Assisted Living - Ein Überblick zum Stand der Forschung.. In: Gesellschaft für Arbeitswissenschaft e. V. (ed.): Gestaltung nachhaltiger Arbeitssysteme - Wege zur gesunden, effizienten und sicheren Arbeit: 58. Kongress der Gesellschaft für Arbeitswissenschaft (Kassel 2012). Dortmund : GfA-Press, 2012, pp. 499–502
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Technikentwicklungen im Bereich Ambient Assisted Living (AAL) werden besonders durch Rahmenprogramme der EU und nationale Forschungsprogramme gefördert. In den letzten Jahren sind zahlreiche Forschungs- und Entwicklungsprojekte zu AAL- Anwendungen gestartet, deren Inhalte und Forschungsziele sich durchaus überschneiden. Dieser Beitrag gibt durch eine inhaltliche Kategorisierung einen Überblick der Themenzugehörigkeit derzeit laufender und abgeschlossener Projekte. Von den analysierten 73 EU- und 34 BMBF-geförderten Projekten wird außerdem die förderpolitische Schwerpunktsetzung anhand der Finanzierung der Themen betrachtet.
Atzmueller, Martin: Mining Social Media. In: Informatik Spektrum vol. 35 (2012), Nr. 2, pp. 132–135
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Krause, Beate ; Lerch, Hana ; Hotho, Andreas ; Roßnagel, Alexander ; Stumme, Gerd: Datenschutz im Web 2.0 am Beispiel des sozialen Tagging-Systems BibSonomy.. In: Informatik Spektrum vol. 35 (2012), Nr. 1, pp. 12–23
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Maina Olembo, M. ; Kahlert, Anna ; Neumann, Stephan ; Volkamer, Melanie: Partial Verifiability in POLYAS for the GI Elections. In: International Conference on Electronic Voting 2012 (EVOTE2012) vol. 5th (2012), pp. 95–109
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Klendauer, Ruth ; Berkovich, Marina ; Gelvin, Richard ; Leimeister, Jan Marco ; Krcmar, Helmut: Towards a competency model for requirements analysts. In: Information Systems Journal (ISJ) vol. 22 (2012), Nr. 6, pp. 475–503. — EXT13
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Jandt, Silke ; Steidle, Roland: One Device Fits All? – Ein Endgerät für mehrere Arbeitgeber – Rechtliche Bewertung und Handlungsempfehlungen. In: BYID (ed.) Computer und Recht (CR) (2012), pp. 338–344
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Klendauer, Ruth ; Hoffmann, Axel ; Leimeister, Jan Marco ; Berkovich, Marina ; Krcmar, Helmut:Using the IDEAL Software Process Improvement Model for the Implementation of Automotive SPICE.. In: 5th International Workshop on Co-operative and Human Aspects of Software Engineering (CHASE), ICSE 2012 Workshop. Zurich, Switzerland, 2012. — 332, pp. 66–72
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Bretschneider, U. ; Rajagopalan, B. ; Leimeister, J. M.:Idea Generation in Virtual Communities for Innovation: The Influence of Participants’ Motivation on Idea Quality.. In: 45. Annual Hawaii International Conference on System Sciences (HICSS). Grand Wailea, Maui, 2012. — 300 (05-12)
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Lehmann, K. ; Thillainathan, N. ; Bitzer, P. ; Leimeister, J. M.:Performance Dashboard für Dozenten in der universitären Lehre.. In: Multikonferenz der Wirtschaftsinformatik (MKWI). Braunschweig, Deutschland, 2012. — 299 (04-12)
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Atzmueller, Martin ; Lemmerich, Florian:VIKAMINE - Open-Source Subgroup Discovery, Pattern Mining, and Analytics.. In: Proc. ECML/PKDD 2012: European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases. accepted. Heidelberg, Germany : Springer Verlag, 2012
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Schumacher, A. ; Grigorjew, O. ; Hühnlein, D. ; Jandt, S.: Die Entwicklung der BSI-Richtlinie für das rechtssichere ersetzende Scannen.. In: für Informatik, G. (ed.) Lecture Notes in Informatics, Auf dem Weg zu einer offenen, smarten und vernetzten Verwaltungskultur vol. 197 (2012), pp. 127–136
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Roßnagel, Alexander: Datenschutzgesetzgebung - Monopol oder Vielfalt?. In: Datenschutz und Datensicherheit vol. 36 (2012), Nr. 8
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Atzmueller, Martin: Mining Social Media: Key Players, Sentiments, and Communities. In: WIREs: Data Mining and Knowledge Discovery vol. In Press (2012)
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Hoffmann, A. ; Schulz, T. ; Hoffmann, H. ; Jandt, S. ; Roßnagel, A. ; Leimeister, J. M. ; Seyff, N. ; Madhavji, N. (eds.):Towards the Use of Software Requirement Patterns for Legal Requirements. Essen, Germany : 2nd International Requirements Engineering Efficiency Workshop (REEW) 2012 at REFSQ 2012, 2012
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Kipp, P. ; Bretschneider, U.:Collaboration Engineering to Improve the Idea Quality in Ideas Communities.. In: European Conference on Information Systems (ECIS). Barcelona, Spain, 2012. — 328
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Doerfel, Stephan ; Jäschke, Robert ; Stumme, Gerd:Publication Analysis of the Formal Concept Analysis Community.. In: Domenach, F. ; Ignatov, D. ; Poelmans, J. (eds.): Formal Concept Analysis - 10th International Conference, ICFCA 2012, Leuven, Belgium, May 7-10, 2012. Proceedings, Lecture Notes in Computer Science. vol. 7278. Berlin/Heidelberg : Springer, 2012 — ISBN 978-3-642-29891-2, pp. 77–95
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We present an analysis of the publication and citation networks of all previous editions of the three conferences most relevant to the FCA community: ICFCA, ICCS and CLA. Using data mining methods from FCA and graph analysis, we investigate patterns and communities among authors, we identify and visualize influential publications and authors, and we give a statistical summary of the conferences’ history.
Atzmueller, Martin:Onto Collective Intelligence in Social Media: Exemplary Applications and Perspectives.. In: Proc. 3rd International Workshop on Modeling Social Media (MSM 2012), Hypertext 2012. New York, NY, USA : ACM Press, 2012
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Söllner, M. ; Hoffmann, A. ; Hoffmann, H. ; Leimeister, J. M.: Vertrauensunterstützung für sozio-technische ubiquitäre Systeme. In: Zeitschrift für Betriebswirtschaft vol. 2012 (2012), Nr. Supplement 4, pp. 109–140. — 298 (02-12)
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VertrauensaufbauundVertrauensunterstützungsinderfolgskritischfürdieAd- option neuer IT-Systeme. Umso erstaunlicher ist, dass in der Literatur kaum etwas zur systematischen Integration der Vielzahl an verhaltensorientierten Erkenntnissen zu Vertrauen in und um IT-Systeme in deren Entwicklung zu finden ist. Das Ziel dieses Artikels ist die Entwicklung einer Methode zur Ableitung vertrauensunterstützender Komponenten für sozio-technische ubiquitäre Systeme. Die Methode wird exemplarisch auf die Entwicklung einer ubiquitären Restaurantempfehlungsanwen- dung angewandt. Die Anwendung wird hierdurch um vier vertrauensunterstützende Komponenten angereichert. Die so entwickelte Anwendung wird anschließend im Rahmen eines Laborexperiments mit 166 Probanden evaluiert. Hierbei wird gezeigt, dass sowohl das Vertrauen in das sozio-technische ubiquitäre System, als auch die Absicht es zu nutzen signifikant erhöht werden konnten. Soweit es den Autoren bekannt ist, beschreibt dieser Artikel als Erster, wie Vertrauen in systematischer Art und Weise in die Entwicklung sozio-technischer ubiquitärer Systeme einbezogen werden und welchen Nutzen dies stiften kann.
Geppert, M. ; Roßnagel, A. (eds.):TeleMediaR – Telekommunikations- und Multimediarecht, dtv-Textsammlung mit einer Einführung. 9. ed.. München : Beck-Texte im dtv, 2012
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Lemmerich, Florian ; Atzmueller, Martin:Describing Locations using Tags and Images: Explorative Pattern Mining in Social Media.. In: Modeling and Mining Ubiquitous Social Media, LNAI. vol. 7472. Heidelberg, Germany : Springer Verlag, 2012
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Kroschwald, Steffen ; Wirtschaftsrecht, F. (ed.):Sicherheitsmaßnahmen an Flughäfen im Lichte der Grundrechte.. vol. 11 : kassel university press, 2012
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Doerfel, Stephan ; Jäschke, Robert ; Hotho, Andreas ; Stumme, Gerd:Leveraging Publication Metadata and Social Data into FolkRank for Scientific Publication Recommendation.. In: Proceedings of the 4th ACM RecSys workshop on Recommender systems and the social web, RSWeb ’12. Dublin, Ireland : ACM, 2012 — ISBN 978-1-4503-1638-5, pp. 9–16
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The ever-growing flood of new scientific articles requires novel retrieval mechanisms. One means for mitigating this instance of the information overload phenomenon are collaborative tagging systems, that allow users to select, share and annotate references to publications. These systems employ recommendation algorithms to present to their users personalized lists of interesting and relevant publications. In this paper we analyze different ways to incorporate social data and metadata from collaborative tagging systems into the graph-based ranking algorithm FolkRank to utilize it for recommending scientific articles to users of the social bookmarking system BibSonomy. We compare the results to those of Collaborative Filtering, which has previously been applied for resource recommendation.
Hoberg, S. ; Schmidt, L. ; Hoffmann, A. ; Söllner, M. ; Leimeister, J. M. ; Voigtmann, C. ; David, K. ; Zirfas, J. ; et al.:Socially Acceptable Design of a Ubiquitous System for Monitoring Elderly Family Members.. In: Goltz, U. ; Magnor, M. ; Appelrath, H.-J. ; Mathies, H. ; Balke, W.-T. ; Wolf, L. (eds.): Informatik 2012 - Was bewegt uns in der/die Zukunft? 42. Jahrestagung der Gesellschaft für Informatik e. V. (Braunschweig 2012), Lecture Notes in Informatics. Bonn : Köllen, 2012, pp. 349–363
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Some functions in ambient assistance systems are enabled by sensors gathering data from the surroundings. While many prototypes are developed to prove technical concepts, for creating an acceptable, usable product additional facets need to be considered. Therefore, we present an approach to develop a functional ubiquitous system to support the monitoring and assistance of elderly family members. Besides the necessary technical concepts, insights from trust, law and user interface design are incorporated in this approach. The main idea of the approach is to deduce functional requirements from normative guidelines, theories or laws, and to combine the contributions from the involved disciplines developing the Senior Monitor demonstrator.
Hoberg, S. ; Schmidt, L. ; Hoffmann, A. ; Söllner, M. ; Leimeister, Jan-Marco ; Voigtmann, C. ; David, K. ; Roßnagel, Ak:Socially acceptable design of a ubiquitous system for monitoring elderly family member.. In: Goltz, U. ; Magnor, M. ; Appelrath, H.-J. ; Matties, H. K. ; Balke, W.-T. ; Wolf, L. (eds.): . vol. 42. Jahrestagung, 2012, pp. 349–364
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Johannes, P. C. ; Kartal, A. ; Roßnagel, A.: Die TKG-Novelle 2012. In: Kommunikation & Recht (K & R) (2012), Nr. 4, pp. 244–250
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Hoffmann, A.:A Pattern-Based Approach for Analysing Requirements in Socio-technical Systems Engineering.. In: 20th IEEE International Requirements Engineering Conference Doctoral Symposium (RE 2012 DS). Chicago, Illinois, USA, 2012
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Nebel, Maxi ; Richter, Philipp: Datenschutz bei Internetdiensten nach der DS-GVO – Vergleich der deutschen Rechtslage mit dem Kommissionsentwurf. In: Zeitschrift für Datenschutz (ZD) (2012), pp. S. 407–413
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Hoffmann, A. ; Hoffmann, H. ; Leimeister, J. M.:Anforderungen an Software Requirement Pattern in der Entwicklung sozio-technischer Systeme.. In: 42. Jahrestagung der Gesellschaft für Informatik e.V. (GI). Braunschweig, Germany, 2012. — 350
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Leimeister, Jan Marco ; Böhm, Markus ; Yetton, Phillip: Managing IT in a Business Unit Divestiture. In: MIS Quarterly Executive vol. 11 (2012), Nr. 1, pp. 37–48
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2011[ to top ]

Jandt, S. ; Roßnagel, A.: Rechtskonformes Direktmarketing. In: Multimedia und Recht (MMR) (2011), pp. 86–91
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Doerfel, Stephan:A Context-Based Description of the Doubly Founded Concept Lattices in the Variety Generated by M_3.. In: Valtchev, P. ; Jäschke, R. (eds.): Formal Concept Analysis, Lecture Notes in Computer Science. vol. 6628. Berlin / Heidelberg : Springer, 2011, pp. 93–106
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In universal algebra and in lattice theory the notion of varieties is very prominent, since varieties describe the classes of all algebras (or of all lattices) modeling a given set of equations. While a comprehensive translation of that notion to a similar notion of varieties of complete lattices – and thus to Formal Concept Analysis – has not yet been accomplished, some characterizations of the doubly founded complete lattices of some special varieties (e.g. the variety of modular or that of distributive lattices) have been discovered. In this paper we use the well-known arrow relations to give a characterization of the formal contexts of doubly founded concept lattices in the variety that is generated by M 3 – the smallest modular, non-distributive lattice variety.
Blohm, I. ; Bretschneider, U. ; Leimeister, J. M. ; Krcmar, H.:Entwicklung eines Instruments zur Qualitätsmessung von kundengenerierten Innovationsideen.. In: Leimeister, J. M. ; Krcmar, H. ; Möslein, K. ; Koch, M. (eds.): Gemeinschaftsgestützte Innovationsentwicklung für Softwareunternehmen. Lohmar, Germany : EUL Verlag, 2011. — 365, pp. 277–302
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Jandt, S. ; Roßnagel, A. ; Volland, B.: Datenschutz für Smart Meter – Spezifische Neuregelungen im EnWG. In: Zeitschrift für Datenschutz (ZD) (2011), pp. 99–104
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Demirel, D. ; Henning, M. ; Ryan, Y. A. ; Schneider, S. ; Volkamer, M.:Feasibility Analysis of Prêt à Voter for German Federal Elections.. In: E-Voting and Identity (Tagungsband), 2011
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Jandt, S. ; Roßnagel, A. ; Wilke, D.: Krankenhausinformationssysteme im Gesundheitskonzern. In: Recht der Datenverarbeitung (RDV) (2011), Nr. 5, p. 222
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Desoi, M. ; Knierim, A.: Intimsphäre und Kernbereichsschutz - Ein unantastbarer Bereich privater Lebensgestaltung in der Rechtsprechung des Bundesverfassungsgerichts. In: Die Öffentliche Verwaltung (DÖV) (2011), pp. 398–405
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Desoi, M. ; Pocs, M. ; Stach, B.: "Biometric Systems in Future Crime Prevention Scenarios:Biometric Systems in Future Crime Prevention Scenarios – How to Reduce Identifiability of Personal Data.. In: Brömme, A. ; Busch, C. (eds.): BIOSIG 2011: Proceedings - International Conference of the Biometrics Special Interste Group. Bonn, 2011, pp. 259–266
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Jandt, S. ; Roßnagel, A.: Datenschutz in Social Networks - Kollektive Verantwortlichkeit für die Datenverarbeitung. In: Zeitschrift für Datenschutz (ZD) (2011), pp. 160–166
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Schulz, Thomas ; Skistims, Hendrik ; Zirfas, Julia ; Comes, Diana ; Evers, Christoph:Vorschläge zur rechtskonformen Gestaltung selbst-adaptiver Anwendungen.. In: Proceedings des Workshops Sozio-technisches Systemdesign im Zeitalter des Ubiquitous Computing (SUBICO). Berlin : INFORMATIK 2011, 2011
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Jandt, S. ; Roßnagel, A. ; Wilke, D.: Outsourcing der Verarbeitung von Patientendaten - Fragen des Daten- und Geheimnisschutzes. In: Neue Zeitschrift für Sozialrecht (NZS) (2011), pp. 641–646
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Schuldt, M.:Tagungsbericht zur Abschlusstagung des Forschungsprojekts InVoDaS am 7.9.2011 in Berlin : Institut für Europäisches Medienrecht e.V., 2011
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Lemmerich, Florian ; Atzmueller, Martin:Modeling Location-Based Profiles of Social Image Media using Explorative Pattern Mining.. In: Proc. IEEE Third International Conference on Social Computing (SocialCom). Boston, MA, USA : IEEE Computer Society, 2011, pp. 1356–1363
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Jandt, S. ; Roßnagel, A.: Social Networks für Kinder und Jugendliche - Besteht ein ausreichender Datenschutz?. In: Multimedia und Recht (MMR) (2011), pp. 637–642
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David, K. ; Lau, Sian Lun ; Klein, Niklas: Social Link APP - A New Communication Paradigm Empowering Mobile Users. In: IEEE Vehicular Technology Magazine vol. 6 (2011), Nr. 3, pp. 80–87
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In less than two decades, mobile communication has developed from a niche application to a mass-market high-tech product, having experienced an unprecedented growth never achieved by any other technology, whether radio, television, or even the Internet [1]. The technologies that have revolutionized communication started with the classical fixed telecommunication networks. On these networks, we have real-time communication using different media such as classical telephony using voice. Apart from the classical fixed telecommunication net works, another major area of growth has, of course, been the Internet. In its wake, services such as voice communication "enhanced" by video (e.g., Video Skype and Apple Facetime) have followed. Also, instant messaging is a form of real-time communications using text messages. Then we have asynchronous communications with two success stories: short message service (SMS) and e-mail.
Hentschel, A. ; Roßnagel, A.: Ist das Gesetz zur Laufzeitverlängerung von Kernkraftwerken zustimmungsbedürftig?. In: und Planungsrecht, U. (ed.) Umwelt- und Planungsrecht (UPR) (2011), pp. 1–7
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Klein, Bernd Niklas ; Lau, Sian Lun ; David, Klaus:Evaluation of the Influence of Time Synchronisation on Classification Learning Based Movement Detection with Accelerometers.. In: 2011 IEEE/IPSJ 11th International Symposium on Applications and the Internet (SAINT). Munich, Bavaria, Germany : IEEE, 2011, pp. 56–64
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Context awareness is an important enabler of future applications in ubiquitous environments and has the potential to free the user from the control loop in a situation where he faces ever more connected devices. The context of a user can be accessed using data gathered from the user's personal devices and devices in his proximity. In this paper we examine the relation between time synchronisation of devices and context reasoning accuracy. For an application where we detect different activities of an office worker from acceleration data measured at the wrists, we show that insufficient time synchronisation leads to a significant decrease of reasoning accuracy. We show this for six commonly used classification learning algorithms that otherwise offer high accuracy provided devices are time synchronised. We also analyse the reasons that causes a lack of time synchronisation and why known synchronisation protocols are not applicable in ubiquitous environments. To solve the problems imposed by insufficient time synchronisation we propose a conceptual change in the communication paradigm used in architectures for context awareness.
Berkovich, M. ; Leimeister, J. M. ; Krcmar, H.: Requirements Engineering for Product Service Systems - A State of the Art Analysis. In: Business & Information Systems Engineering (BISE) vol. 3, Springerlink (2011), Nr. 6, pp. 369–380. — 296 (59-11)
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Bretschneider, U. ; Leimeister, J. M.: Getting customers’ motives: Lean on motivation theory for designing virtual ideas communities. In: IFIP Working Group 8.6. Hamburg, Germany (2011). — 243 (28-11)
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Bretschneider, U. ; Blohm, I. ; Fähling, J. ; Huber, J. M. ; Riedl, C. ; Leimeister, J. M. ; Krcmar, H.: IT zur Unterstützung der Kundenintegration in den Innovationsprozess. In: Information Management und Consulting vol. 26 (2011), pp. 52–57. — 246 (31-11)
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Lau, Sian Lun ; Xu, Yaqian ; David, Klaus:Novel indoor localisation using an unsupervised Wi-Fi signal clustering method.. In: Future Network & Mobile Summit. Warsaw, Poland : IEEE, 2011, pp. 1–8
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Indoor localisation continues to be an important research challenge. One interesting approach is to realise the localisation without specific additional hardware, such as special tags or ultrasonic systems, but rather with typically already available infrastructure such as Wi-Fi and cellular networks. Localisation techniques based on supervised learning, as observed in many previous investigations, require the availability of location labels that should be provided by experts or users. Unsupervised learning techniques are seen as an alternative where the localisation system automatically detects useful information to recognise locations without requiring explicit labelling from users. In this paper, a novel indoor localisation method using a density-based clustering method is presented. It utilises measured signal strength from surrounding Wi-Fi access points (APs) to automatically create fingerprints according to the accumulative frequency density of the signal strengths. The evaluations have shown that the algorithm is capable of room-level localisation with high precision in a normal office environment.
Berkovich, M. ; Esch, S. ; Mauro, C. ; Leimeister, J. M. ; Krcmar, H.:Towards an Artifact Model for Requirements to IT-enabled Product Service Systems.. In: Wirtschaftsinformatik Konferenz (WI) 2011. vol. 10. Zürich, Schweiz, 2011. — 230 (15-11)
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Johannes, P. C. ; Hackel, S. ; Rieger, S. ; Potthoff, J. ; Madiesh, M.:Scientific Data Lifecycle - Beweiswerterhaltung und Technologien.. In: für Sicherheit in der Informationstechnik (BSI), B. (ed.): Sicher in die digitale Welt von morgen : SecuMedia, 2011, pp. 403–418
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Johannes, P. C. ; Potthoff, J. ; Madiesh, M.:Beweissichere elektronische Labor-, Patienten- und Fallakten.. In: perspeGKtive 2011 - Digital Proceedings, 2011
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Brataas, Gunnar ; Jiang, Shanshan ; Reichle, Roland ; Geihs, Kurt:Performance property prediction supporting variability for adaptive mobile systems.. In: Schaefer, I. ; John, I. ; Schmid, K. (eds.): Proceedings of the 15th International Software Product Line Conference, Volume 2 : ACM, 2011 — ISBN 978-1-4503-0789-5, p. 37
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Johannes, P. C. ; Rieger, S. ; Potthoff, J. ; Madiesh, M.:Elektronisch signierende Endgeräte im Forschungsprozess.. In: Schartner ; Taeger (eds.): D-A-CH Security 2011 - Tagungsband, 2011, pp. 44–55
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Johannes, P.C. ; Potthoff, J.:Beweissicherheit und Archivierung von Forschungsdaten in der MPG.. In: Oberreuter ; Vollmar ; Weiße (eds.): 27. DV-Treffen der Max-Planck-Institute. vol. GWDG-Bericht Nr. 77, 2011, pp. 29–41
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Johannes, P.C. ; Rieger, S. ; Potthoff, J. ; Madiesh, M.:Elektronisches Laborbuch: Beweiswerterhaltung und Langzeitarchivierung in der Forschung.. In: Schomburg ; Leggewie ; Lobin ; Puschmann (eds.): Digitale Wissenschaft - Stand und Entwicklung digital vernetzter Forschung in Deutschland, 2011, pp. 149–156
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Berkovich, M. ; Hoffmann, A. ; Leimeister, J. M. ; Krcmar, H.:Analysis of Requirements Engineering Techniques for IT enabled Product-Service-Systems.. In: Requirements Engineering for Systems, Services, and Systems of Systems (RESS). Trento, Italy, 2011. — 264 (47-11)
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Schmidt, L.: Allgegenwart im Alltag - Gestaltungspotenziale des Ubiquitous Computing. In: VENUS-Technologietag, Vortrag, VENUS-Technologietag, Vortrag.. Kassel (2011)
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Berkovich, M. ; Leimeister, J. M. ; Krcmar, H.: Requirements Engineering für Product Service Systems - Eine State-of-the-Art-Analyse. In: Wirtschaftsinformatik vol. 53 (2011), Nr. 6, pp. 357–370
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Bretschneider, U. ; Leimeister, J. M.:Ideen-Community.. In: Sommerlatte, T. ; Achatz, R. ; Braun, M. (eds.): Fachlexikon Technologie- und Innovationsmanagement, 2011. — 245 (30-11)
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Berkovich, M. ; Mauro, C. ; Leimeister, J. M. ; Weyde, F. ; Krcmar, H.:Towards Cycle-Oriented Requirements Engineering.. In: Wirtschaftsinformatik Konferenz (WI) 2011. vol. 10. Zürich, Schweiz, 2011. — 232 (17-11)
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Bittner, E. A. C. ; Leimeister, J. M.:Towards CSR 2.0 - Potentials and Challenges of Web 2.0 for Corporate Social Responsibility Communication.. In: 11. European Academy of Management (EURAM) 2011 - Annual Meeting. Tallinn, Estonia, 2011. — 227 (13-11)
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Bitzer, P. ; Hirdes, E. M. ; Hoffmann, A. ; Leimeister, J. M.:Collaborative development of performance indicators for IT applications.. In: 41. Jahrestagung der Gesellschaft für Informatik. Berlin, Germany, 2011. — 233 (19-11)
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Bitzer, P. ; Leimeister, J. M.:Kollaborative Kennzahlenentwicklung für den IT-Wertbeitrag.. In: Lang, M. ; Amberg, M. (eds.): Erfolgsfaktor IT-Management – So steigern Sie den Wertbeitrag Ihrer IT. Düsseldorf, Germany : Symposium, 2011. — 262 (45-11)
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Bitzer, Philipp ; Bittner, Eva ; Leimeister, Jan Marco:Identifying a set of relevant input and output factors within a productivity model for educational services.. In: International RESER Conference (RESER). Hamburg, Germany, 2011
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Kartal, A. ; Doerfel, S. ; Roßnagel, A. ; Stumme, G.:Privatsphären- und Datenschutz in Community-Plattformen – Gestaltung von Online-Bewertungsportalen.. In: Heiß, H. ; Pepper, P. ; Schlingloff, H. ; Schneider, J. (eds.): Informatik 2011 - Informatik schafft Communities, 2011, p. 412
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Björn-Elmar Macek, Martin Atzmueller:Profile Mining in CVS-Logs and Face-to-Face Contacts for Recommending Software Developers.. In: Proc. of the third Inernational Conference on Social Computing. Boston, MA, USA : IEEE Computer Society, 2011, pp. 250–257
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Blohm, I. ; Riedl, C. ; Leimeister, J. M. ; Krcmar, H.:Idea Evaluation Mechanisms for Collective Intelligence in Open Innovation Communities: Do Traders outperform Raters?. In: International Conference on Information Systems (ICIS). Shanghai, China, 2011
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Blohm, I. ; Leimeister, J. M. ; Rieger, M. ; Krcmar, H.: Controlling von Ideencommunities – Entwicklung und Test einer Ideencommunity-Scorecard. In: Controlling vol. 23 (2011), Nr. 2, pp. 96–103. — EXT7
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Blohm, I. ; Köroglu, O. ; Leimeister, J. M. ; Krcmar, H.:Absorptive Capacity for Open Innovation Communities - Learnings from Theory and Practice.. In: 2011 Academy of Management Annual Meeting. San Antonio, Texas, USA, 2011. — EXT8
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Blohm, I. ; Ebner, W. ; Leimeister, J. M. ; Krcmar, H.:Was bringen die aktivsten Teilnehmer in IT-gestützten Ideenwettbewerben? Der Einfluss von Teilnehmer-Aktivität auf Ideengenerierung und Ideenbewertung.. In: 73. Wissenschaftliche Jahrestagung des Verbandes der Hochschullehrer für Betriebswirtschaft e.V. Nachhaltigkeit. Unternehmerisches Handeln in globaler Verantwortung. Kaiserslautern, Germany, 2011. — EXT10
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Blohm, I. ; Bretschneider, U. ; Leimeister, J. M. ; Krcmar, H.: Does Collaboration Among Participants Lead to Better Ideas in IT-Based Idea Competitions? An Empirical Investigation. In: International Journal of Networking and Virtual Organisations vol. 9 (2011), Nr. 2, pp. 106–122. — 242 (27-11)
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Benz, Dominik ; Körner, Christian ; Hotho, Andreas ; Stumme, Gerd ; Strohmaier, Markus:One Tag to Bind Them All : Measuring Term Abstractness in Social Metadata.. In: Antoniou, G. ; Grobelnik, M. ; Simperl, E. ; Parsia, B. ; Plexousakis, D. ; Pan, J. ; Leenheer, P. D. (eds.): Proceedings of the 8th Extended Semantic Web Conference (ESWC 2011). Heraklion, Crete, 2011
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Recent research has demonstrated how the widespread adoption of collaborative tagging systems yields emergent semantics. In recent years, much has been learned about how to harvest the data produced by taggers for engineering light-weight ontologies. For example, existing measures of tag similarity and tag relatedness have proven crucial step stones for making latent semantic relations in tagging systems explicit. However, little progress has been made on other issues, such as understanding the different levels of tag generality (or tag abstractness), which is essential for, among others, identifying hierarchical relationships between concepts. In this paper we aim to address this gap. Starting from a review of linguistic definitions of word abstractness, we first use several large-scale ontologies and taxonomies as grounded measures of word generality, including Yago, Wordnet, DMOZ and Wikitaxonomy. Then, we introduce and apply several folksonomy-based methods to measure the level of generality of given tags. We evaluate these methods by comparing them with the grounded measures. Our results suggest that the generality of tags in social tagging systems can be approximated with simple measures. Our work has implications for a number of problems related to social tagging systems, including search, tag recommendation, and the acquisition of light-weight ontologies from tagging data.
Bretschneider, U. ; Leimeister, J. M.:Crowdsourcing.. In: Sommerlatte, T. ; Achatz, R. ; Braun, M. (eds.): Fachlexikon Technologie- und Innovationsmanagement, 2011. — 244 (29-11)
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Atzmüller, Martin ; Benz, Dominik ; Hotho, Andreas ; Stumme, Gerd:Towards Mining Semantic Maturity in Social Bookmarking Systems.. In: Passant, A. ; Fernández, S. ; Breslin, J. ; Bojārs, U. (eds.): Proceedings of the 4th international workshop on Social Data on the Web (SDoW2011), 2011
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Bullinger, A. C. ; Hoffmann, H. ; Leimeister, J. M.:The next step – open prototyping.. In: European Conference on Information Systems (ECIS). Helsinki, Finland, 2011. — 239 (24-11)
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Leimeister, J. M. ; Winand, U. ; Wegener, R.:E-Learning-Technologie.. In: Kurbel, K. ; Becker, J. ; Gronau, N. ; Sinz, E. ; Suhl, L. (eds.): Enzyklopädie der Wirtschaftsinformatik – Online-Lexikon. vol. 5, 2011. — 251 (33-11)
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Comes, Diana ; Evers, Christoph ; Geihs, Kurt ; Saur, Daniel ; Witsch, Andreas ; Zapf, Michael:Adaptive Applications are Smart Applications.. In: International Workshop on Smart Mobile Applications. San Francisco, 2011
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Scholz, Christoph ; Doerfel, Stephan ; Atzmueller, Martin ; Hotho, Andreas ; Stumme, Gerd:Resource-Aware On-Line RFID Localization Using Proximity Data.. In: Working Notes of the LWA 2011 - Learning, Knowledge, Adaptation, 2011
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Leimeister, J. M. ; Krcmar, H. ; Koch, M. ; Möslein, K.:Gemeinschaftsgestützte Innovationsentwicklung für Softwareunternehmen.. In: Leimeister, J. M. ; Krcmar, H. ; Koch, M. ; Möslein, K. (eds.): Schriften zu Kooperations- und Mediensystemen. vol. 31. Lohmar, Germany : EUL Verlag, ISBN: 978-3844100921, 2011. — 294 (57-11, pp. 1–452
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Balby Marinho, Leandro ; Nanopoulos, Alexandros ; Schmidt-Thieme, Lars ; Jäschke, Robert ; Hotho, Andreas ; Stumme, Gerd ; Symeonidis, Panagiotis:Social Tagging Recommender Systems.. In: Ricci, F. ; Rokach, L. ; Shapira, B. ; Kantor, P. B. (eds.): Recommender Systems Handbook. New York : Springer, 2011 — ISBN 978-0-387-85820-3, pp. 615–644
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The new generation of Web applications known as (STS) is successfully established and poised for continued growth. STS are open and inherently social; features that have been proven to encourage participation. But while STS bring new opportunities, they revive old problems, such as information overload. Recommender Systems are well known applications for increasing the level of relevant content over the noise that continuously grows as more and more content becomes available online. In STS however, we face new challenges. Users are interested in finding not only content, but also tags and even other users. Moreover, while traditional recommender systems usually operate over 2-way data arrays, STS data is represented as a third-order tensor or a hypergraph with hyperedges denoting (user, resource, tag) triples. In this chapter, we survey the most recent and state-of-the-art work about a whole new generation of recommender systems built to serve STS.We describe (a) novel facets of recommenders for STS, such as user, resource, and tag recommenders, (b) new approaches and algorithms for dealing with the ternary nature of STS data, and (c) recommender systems deployed in real world STS. Moreover, a concise comparison between existing works is presented, through which we identify and point out new research directions.
Köbler, F. ; Goswami, S. ; Koene, P. ; Leimeister, J. M. ; Krcmar, H.:Using NFriendConnector to Extend Facebook to the Real World.. In: Wirtschaftsinformatik Konferenz (WI) 2011. vol. 10. Zürich, Schweiz, 2011. — 231 (16-11)
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Köbler, F. ; Hoekrich, M. ; Koene, P. ; Menschner, P. ; Prinz, A. ; Leimeister, J. M. ; Krcmar, H.:Benutzerfreundlichkeit von mobilen Applikationen zur Nutzung von virtuellen Netzgemeinschaften für die Generation 50+.. In: Bieber, D. ; Schwarz, K. (eds.): Mit AAL-Dienstleistungen altern. Nutzerbedarfsanalysen im Kontext des Ambient Assisted Living. Saarbrücken, Germany : iso-Institut, 2011. — 223 (09-11), pp. 97–114
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Beckenbach, F. ; Freimann, J. ; Roßnagel, A. ; Walther, M. (eds.):Produktverantwortung, Modularisierung und Stoffstrominnovationen, Interdisziplinäre Stoffstromforschung. vol. 2. Marburg : Metropolis, 2011
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Böhm, M. ; Henningsson, S. ; Leimeister, J. M. ; Yetton, P. ; Krcmar, H.:A Dual View on IT Challenges in Corporate Divestments and Acquisitions.. In: International Conference on Information Systems (ICIS). Shanghai, China, 2011, pp. 1–19
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Böhm, M. ; Hansbauer, G. ; Müller, S. ; Leimeister, J. M. ; Krcmar, H.:Corporate Divestitures: Towards Measuring the Success of IT Carve-Out Projects.. In: 11. European Academy of Management (EURAM)- Annual Meeting. Tallinn, Estonia, 2011. — EXT1, pp. 1–35
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Böhm, F. ; Fähling, J. ; Huber, M. ; Leimeister, J. M. ; Krcmar, H.:Scenario planning for innovation development: an overview of different innovation domains.. In: R&D Management Conference. Norrköping, Sweden, 2011. — EXT24, p. 27
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Bullock, Beate Navarro ; Lerch, Hana ; Rossnagel, Alexander ; Hotho, Andreas ; Stumme, Gerd:Privacy-aware spam detection in social bookmarking systems.. In: Proceedings of the 11th International Conference on Knowledge Management and Knowledge Technologies, i-KNOW ’11. Graz, Austria : ACM, 2011 — ISBN 978-1-4503-0732-1, pp. 15:1–15:8
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With the increased popularity of Web 2.0 services in the last years data privacy has become a major concern for users. The more personal data users reveal, the more difficult it becomes to control its disclosure in the web. However, for Web 2.0 service providers, the data provided by users is a valuable source for offering effective, personalised data mining services. One major application is the detection of spam in social bookmarking systems: in order to prevent a decrease of content quality, providers need to distinguish spammers and exclude them from the system. They thereby experience a conflict of interests: on the one hand, they need to identify spammers based on the information they collect about users, on the other hand, they need to respect privacy concerns and process as few personal data as possible. It would therefore be of tremendous help for system developers and users to know which personal data are needed for spam detection and which can be ignored. In this paper we address these questions by presenting a data privacy aware feature engineering approach. It consists of the design of features for spam classification which are evaluated according to both, performance and privacy conditions. Experiments using data from the social bookmarking system BibSonomy show that both conditions must not exclude each other.
Roßnagel, A. ; Desoi, M. ; Hornung, G.: Gestufte Kontrollen bei Videoüberwachungsanlagen. In: Datenschutz und Datensicherheit (DuD) (2011), pp. 694–701
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Bretschneider, U. ; Leimeister, J. M.:Schöne neue Crowdsourcing Welt: Billige Arbeitskräfte, Weisheit der Massen?. In: Meißner, K. ; Engelien, M. (eds.): Proceedings zum Workshop Gemeinschaft in Neuen Medien (GeNeMe 11). Dresden, Germany, 2011. — 356, pp. 1–13
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Behrenbruch, K. ; Atzmüller, M. ; Kniewel, R. ; Hoberg, S. ; Stumme, G. ; Schmidt, L.:Gestaltung technisch-sozialer Vernetzung in der Arbeitsorganisation: Untersuchung zur Nutzerakzeptanz von RFID-Technologie.. In: Gesellschaft für Arbeitswissenschaft e. V. (ed.): Mensch, Technik, Organisation - Vernetzung im Produktentstehungs- und -herstellungsprozess: 57. Kongress der Gesellschaft für Arbeitswissenschaft (Chemnitz 2011). Dortmund : GfA-Press, 2011, pp. 757–760
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Die Entwickler von Anwendungen zur technisch-sozialen Vernetzung stehen vor der Herausforderung einerseits nützliche und andererseits sichere und kontrollierbare Lösungen zu finden, um die Akzeptanz der späteren Nutzer sicherzustellen. In diesem Beitrag beschreiben wir einen benutzerorientierten Entwicklungsprozess für die RFID-basierte Anwendung MyGroup, die für die Kooperationsunterstützung am Arbeitsplatz (engl Computer Supported Cooperative Work, CSCW) eingesetzt wird. Dabei konzentrieren wir uns auf die frühen Phasen der benutzerorientierten Entwicklung und stellen einen Ansatz vor, der die Anforderungsanalyse mit Befragungen zur Nutzerakzeptanz auf der Grundlage eines theoretischen Szenarios verbindet.
Behrenbruch, K. ; Schmidt, L.:Modelle für Technologieakzeptanz und Vertrauen: Integration für eine sozialverträgliche Gestaltung ubiquitärer Systeme.. In: Schmid, S. ; Elepfandt, M. ; Adenauer, J. ; Lichtenstein, A. (eds.): Reflexionen und Visionen der Mensch-Maschine-Interaktion - Aus der Vergangenheit lernen, Zukunft gestalten: 9. Berliner Werkstatt Mensch-Maschine-Systeme (Berlin 2011), Fortschrittberichte VDI, Reihe 22, Mensch-Maschine-Systeme. Düsseldorf : VDI-Verlag, 2011, pp. 603–608
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In diesem Beitrag wird der Modellentwurf TAVUA vorgestellt, der es ermöglicht, die Forschungsergebnisse aus den Bereichen Technologieakzeptanz und Vertrauen bezogen auf die Nutzung ubiquitärer Anwendungen zusammenzuführen. Für diesen Zweck wird die verbindende Kausalstruktur von disziplinübergreifend genutzten Modellen für Verhalten (Theory of Reasoned Action) und die Nutzung von Informationstechnologie (Technology Acceptance Model) erläutert und auf den Modellentwurf übertragen. Es wird ein verbindender vierstufiger Aufbau identifiziert, der einen Kausalzusammenhang zwischen Meinungen, Einstellungen, der Verhaltensabsicht und dem tatsächlichen Verhalten herstellt. Der Modellentwurf verortet Technologieakzeptanz und Vertrauen in dieser Kausalstruktur. Zudem wird die Bedeutung von Vertrauen für die Akzeptanz von ubiquitären Anwendungen betont: Die Nutzung verlangt die Bereitschaft dem System Daten und Entscheidungen zu überlassen, sich also verletzlich zu machen und in einer unsicheren Situation Vertrauen aufzubringen. Die Ergebnisse einer Befra-gung zur Akzeptanz einer RFID-basierten und ubiquitären Anwendung zur Unterstützung der Zusammenarbeit in Forschungsgruppen konkretisieren die Voraussetzung für Vertrauen in ubi-quitäre Anwendungen.
Bräunlich, K. ; Richter, P. ; Grimm, R. ; Roßnagel, A.: Verbindung von Common Criteria-Schutzprofilen mit der Methode rechtlicher IT-Gestaltung KORA - Anwendungsbeispiel Wahlgeheimnis. In: Datenschutz und Datensicherheit (DuD) vol. 35 (2011), p. 129
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Behrenbruch, Kay ; Atzmueller, Martin ; Kniewel, Romy ; Hoberg, Sebastian ; Stumme, Gerd ; Schmidt, Ludger:Gestaltung technisch-sozialer Vernetzung in der Arbeitsorganisation: Untersuchung zur Nutzerakzeptanz von RFID-Technologie.. In: GfA-Frühjahrskongress. Chemnitz, 2011
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Hentschel, A. ; Roßnagel, A.: "Weitere Vorsorge" im Atomrecht? Zur Verfassungswidrigkeit des § 7d AtG. In: Zeitschrift für Neues Energierecht (ZNER) (2011), pp. 7–12
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Schmidt, L. ; Leimeister, J. M. ; Behrenbruch, K.:Methoden-Evolution für die Entwicklung ubiquitärer Anwendungen.. In: Schmid, S. ; Elepfandt, M. ; Adenauer, J. ; Lichtenstein, A. (eds.): Reflexionen und Visionen der Mensch-Maschine-Interaktion - Aus der Vergangenheit lernen, Zukunft gestalten: 9. Berliner Werkstatt Mensch-Maschine-Systeme (Berlin 2011), Fortschrittberichte VDI, Reihe 22, Mensch-Maschine-Systeme. Düsseldorf : VDI-Verlag, 2011, pp. 186–187
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Ubiquitäre Anwendungen brechen mit den klassischen Interaktionsformen zwischen Mensch und Informationstechnologie (IT). Rechner, Maus und Tastatur stehen nicht länger auf dem Schreibtisch - die IT verschmilzt mit Gebrauchsgegenständen und Umgebungen und unterstützt den Menschen aus dem Hintergrund. Der Mensch interagiert mit der eingebetteten Technologie implizit, ohne einen Bruch zu seinen IT-unabhängigen Handlungen in der Welt zu erleben. Sensorik misst, Prozessoren entscheiden und Aktuatorik bewirkt, ohne dass der Mensch direkt steuert und bedient. Diese zunehmend real werdende Vision verändert das System Mensch-Maschine. Es erfolgt eine Verschiebung der aktiven und die Interaktion steuernden Impulse hin zur Technik. Die veränderten Interaktionsparadigmen führen unter anderem zu den Fragen, ob die im benutzerorientierten Entwicklungsprozess bewährten Methoden noch geeignet sind, ob diese anzupassen sind oder ob gänzlich neue Formen benötigt werden. Berührt davon ist der gesamte Gestaltungszyklus mit Anforderungsanalyse, Design und Evaluation. Zudem stellt sich die Frage, wie die Herausforderungen in den Bereichen Kontrollverlust und Unsicherheit auf Benutzerseite methodisch berücksichtigt werden können.
Schmidt, L. ; Hoberg, S. ; Widy, O.: Supporting Elderly People - What Do Elderly People Need to Stay as Long as They Can in Their Own Home?. In: 1. International Changemaker Camp, eingeladener Vortrag, 1. International Changemaker Camp, eingeladener Vortrag.. Kassel (2011)
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Schmidt, L. ; Hegenberg, J. ; Cramar, L.: Mensch-Roboter-System zur Gaslecksuche: Von der Anforderungserhebung zur prototypischen Realisierung. In: atp edition - Automatisierungstechnische Praxis vol. 53 (2011), Nr. 12, pp. 56–65
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König, Immanuel ; Voigtmann, Christian ; Klein, Bernd Niklas ; David, Klaus:Enhancing Alignment Based Context Prediction by Using Multiple Context Sources: Experiment and Analysis.. In: Proceedings of the 7th International and Interdisciplinary Conference on Modeling and Using Context, CONTEXT 2011, CONTEXT’11. Karlsruhe, Germany : Springer-Verlag, 2011, pp. 159–172
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Context aware applications are reactive, they adapt to an entity’s context when the context has changed. In order to become proactive and act before the context actually has changed future contexts have to be predicted. This will enable functionalities like preloading of content or detection of future conflicts. For example if an application can predict where a user is heading to it can also check for train delays on the user’s way. So far research concentrates on context prediction algorithms that only use a history of one context to predict the future context. In this paper we propose a novel multidimensional context prediction algorithm and we show that the use of multidimensional context histories increases the prediction accuracy. We compare two multidimensional prediction algorithms, one of which is a new approach; the other was not yet experimentally tested. In theory, simulation and a real world experiment we verify the feasibility of both algorithms and show that our new approach has at least equal or better reasoning accuracy.
Bretschneider, U. ; Leimeister, J. M. ; Krcmar, H.: Der Einsatz von RFID im ÖPNV: Vorteile für Verkehrsbetriebe und Akzeptanz unter Fahrgästen. In: RFID im Blick (2011). — 247 (32-11)
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Schmidt, L.: AAL-Weiterbildung im Tandem. In: Demographischer Wandel - Assistenzsysteme aus der Forschung in den Markt : 4. Deutscher AAL-Kongress, eingeladener Vortrag, Demographischer Wandel - Assistenzsysteme aus der Forschung in den Markt : 4. Deutscher AAL-Kongress, eingeladener Vortrag.. Berlin (2011)
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Schmidt, L.: Immersion und Arbeitsprozessunterstützung mit Augmented Reality. In: 2. Interdisziplinäre Konferenz Illusion - Immersion - Involvement, eingeladener Vortrag, 2. Interdisziplinäre Konferenz Illusion - Immersion - Involvement, eingeladener Vortrag.. Kiel (2011)
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Das Thema Augmented Reality kann insbesondere vor dem Hintergrund der benutzerzentrierten Gestaltung fruchtbar gemacht werden: Beginnend beim ersten großen deutschen Mensch-Technik-Interaktions-Leitprojekt "ARVIKA - Augmented Reality für Entwicklung, Produktion und Service", über Projekte zur Unterstützung von Schweißprozessen im Schiffsbau und Anwendungen in der Medizintechnik, ergonomische Untersuchungen zu Head-Mounted Displays bis hin zur Überwachung technischer Anlagen mit mobilen Inspektionsrobotern stehen dabei methodisch stets die Benutzer und ihre Aufgaben im Zentrum der Gestaltung. Der Vortrag umfasst einen Querschnitt aus verschiedenen Projekten und stellt in diesem Kontext Methoden zur benutzerzentrierten Gestaltung von Augmented-Reality-Systemen vor.
König, I. ; Voigtmann, C. ; Klein, N. ; David, K.:Enhancing alignment based context prediction by using multiple context sources: experiment and analysis.. In: : Springer LNAI6967 Proceedings, 2011, pp. 159–172
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Jandt, S. ; Roßnagel, A.: Qualitätssicherung im Krankenhaus - Fragen des Daten- und Geheimnisschutzes. In: Medizinrecht (MedR) (2011), pp. 140–145
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Jandt, S.: Fernmeldegeheimnis im Arbeitsverhältnis bei erlaubter E-Mail-Nutzung zu privaten Zwecken – Anmerkung zum Urteil des LAG Berlin-Brandenburg vom 16.2.2011. In: Kommunikation und Recht (K&R) (2011), Nr. 10, pp. 631–632
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Atzmueller, Martin:Analysis of Communities in Social Media.. In: Proc. 20th Intl. Conference on Information and Knowledge Management (CIKM 2011). Glasgow, Scotland, UK : ACM Press, 2011, pp. 35–36
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Hoffmann, A. ; Peters, C. ; Leimeister, J. M.:Improving Corporate Portal Design by using Service-Oriented Requirements Engineering and Service Bundling.. In: Requirements Engineering for Systems, Services, and Systems of Systems (RESS) 2011. Trento, Italy, 2011. — 263 (46-11)
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Geihs, Kurt:Die Anwendung denkt mit auf Schritt und Tritt.. In: Smart Mobile Apps Mit Business-Apps ins Zeitalter mobiler Geschaeftsprozesse, Verclas, Stephan; Linnhoff-Popien, Claudia (Hrsg.), Smart Mobile Apps Mit Business-Apps ins Zeitalter mobiler Geschaeftsprozesse, Verclas, Stephan; Linnhoff-Popien, Claudia (Hrsg.) : Springer, 2011, pp. 319–329
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Hoffmann, A. ; Söllner, M. ; Fehr, A. ; Hoffmann, H. ; Leimeister, J. M.:Towards an Approach for Developing socio-technical Ubiquitous Computing Applications.. In: Heiß, H. ; Pepper, P. ; Schlingloff, H. ; Schneider, J. (eds.): Informatik 2011 - Informatik schafft Communities. Beiträge der 41. Jahrestagung der Gesellschaft für Informatik e.V. (GI). vol. P-192. Berlin, Germany : LNI, 2011. — 290 (53-11), pp. 1–15
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Maier, André ; Holm, Teresa ; Linke, Peter ; Steinfurth, Laura ; Münch, Christoph ; Meyer, R. ; Leimeister, Jan Marco ; Prinz, Andreas ; et al.:NFC based Seld-Assessment of Symptoms in ALS.. In: International Symposium on ALS/MND. Sydney, Australia : Informa Healthcare, 2011, p. 69
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Maier, A. ; Holm, T. ; Linke, P. ; Münch, C. ; Leimeister, J. M. ; Prinz, A. ; Steinfurth, L. ; Meyer, T.:NFC-gestützte Selbstbewertung von Symptomen bei der ALS.. In: 84. Kongress der Deutschen Gesellschaft für Neurologie. Wiesbaden, Germany, 2011. — 232 (18-11)
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Hoffmann, H. ; Leimeister, J. M.: Evaluating Application Prototypes in the Automobile. In: IEEE Pervasive Computing vol. 10 (2011), Nr. 3, pp. 43–51. — 241 (26-11)
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Fähling, J. ; Leimeister, J. M. ; Krcmar, H.:Collaboration Engineering for Innovation Design Processes using the Outcome-driven approach.. In: 44. Hawaii International Conference on System Sciences (HICSS) 2011. Kauai, Hawaii, USA, 2011. — JML_EXT15, pp. 1–10
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Krcmar, H. ; Goswami, S. ; Leimeister, J. M. ; Schermann, M. ; Wolf, P. ; Wittges, H.:7. Workshop on Information Systems and Services Sciences.. In: Studien des Lehrstuhls für Wirtschaftsinformatik Technische Universität München, 2011
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Fähling, J. ; Blohm, I. ; Leimeister, J. M. ; Krcmar, H. ; Fischer, J.:Accelerating Customer Integration into Innovation Processes using Pico Jobs.. In: International Journal of Technology Marketing. 6. ed., 2011. — 289 (52-11), pp. 130–147
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Hoffmann, Holger ; Leimeister, Jan Marco: Towards automotive service engineering: a design framework and a process model for developing mobile services in automobiles.. In: International Journal of Electronic Business (IJEB) vol. 9 (2011), Nr. 4, pp. 320–349
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Floch, J. ; Frà, C. ; Fricke, R. ; Geihs, K. ; Wagner, M. ; Lorenzo, J. ; Soladana, E. ; Mehlhase, S. ; et al.:Playing MUSIC — building context-aware and self-adaptive mobile applications.. In: Software: Practice and Experience : Wiley, 2011
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Flach, Alexander ; Memon, Abdul Qudoos ; Lau, Sian Lun ; David, Klaus:Pedestrian Movement Recognition for Radio Based Collision Avoidance: A Performance Analysis.. In: 2011 IEEE 73rd Vehicular Technology Conference (VTC Spring). Budapest, Hungary : IEEE, 2011, pp. 1–5
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In today's increasingly mobile society, car manufacturers and suppliers worldwide face the imperative requirement and have already been working to reduce the number of people killed in traffic accidents. In this context pedestrian protection respectively collision avoidance between cars and pedestrians is of vital importance. Several approaches exist to detect pedestrians but only a few of them are able to work without line of sight and/ or only have a very brief view of the movement history of the pedestrian. However, radio communication based systems which exchange GPS based position information of the pedestrian and the car might have a detailed view to the movement history but the update frequency of GPS positions provided by the mobile phone reduces the speed of the system and might induce false alarms. In this paper, the additional use of pedestrian movement recognition using an acceleration sensor implemented in a mobile phone in the area of collision avoidance between cars and pedestrian is presented and a performance analysis is carried out using the results of an experiment. Finally, the benefits of this approach to the reduction of false alarms and detection of endangered pedestrians are discussed.
Evers, C. ; Hoffmann, A. ; Saur, D. ; Geihs, K. ; Leimeister, J. M.:Ableitung von Anforderungen zum Adaptionsverhalten in ubiquitären adaptiven Anwendungen.. In: Workshops der wissenschaftlichen Konferenz Kommunikation in verteilten Systemen (WowKiVS) 2011. Electronic Communications of the EASST. Berlin, Germany, 2011. — 220 (6-11)
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Skistims, H. ; Zirfas, J. ; GMS Medizinische Informatik, B. und E. (ed.):Datenschutz- und Medizinprodukterecht bei Ubiquitous Computing-Anwendungen im Gesundheitssektor : Deutsche Gesellschaft für Medizinische Informatik, Biometrie und Epidemiologie e.V., 2011
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Holm, Teresa ; Maier, André ; Linke, Peter ; Münch, Christoph ; Maier, R. ; Leimeister, Jan Marco ; Prinz, Andreas ; Steinfurth, Laura ; et al.:Self-Assessment of the Daily Food Intake in ALS via an Application on a Mobile Device.. In: International Symposium on ALS/MND. Sydney, Australia : Informa Healthcare, 2011, p. 68
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Holzapfel, Sebastian ; Wander, Matthäus ; Wacker, Arno ; Weis, Torben:SYNI – TCP Hole Punching Based on SYN Injection.. In: 10th IEEE International Symposium on Network Computing and Applications, IEEE NCA11. Cambridge, Massachusetts, USA, 2011
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Hornung, G. ; Desoi, M.: "Smart Cameras" und automatische Verhaltensanalyse. In: Kommunikation und Recht (K&R) (2011), pp. 153–158
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Kniewel, R. ; Schmidt, L:Das Design ubiquitärer Systeme am Beispiel von MyGroup.. In: Schmid, S.; Elepfandt, M.; Adenauer, J.; Lichtenstein, A. (Hrsg.): Reflexionen und Visionen der Mensch-Maschine-Interaktion – Aus der Vergangenheit lernen, Zukunft gestalten : 9. vol. Berliner Werkstatt Mensch-Maschine-Systeme (Berlin 2011). Düsseldorf : VDI-Verlag, 2011, pp. 609–614
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Atzmueller, Martin ; Benz, Dominik ; Doerfel, Stephan ; Hotho, Andreas ; Jäschke, Robert ; Macek, Bjoern Elmar ; Mitzlaff, Folke ; Scholz, Christoph ; et al.: Enhancing Social Interactions at Conferences. In: it - Information Technology vol. 53, Oldenbourg Wissenschaftsverlag GmbH (2011), Nr. 3, pp. 101–107
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Eckjans, D. ; Fähling, J. ; Leimeister, J. M. ; Krcmar, H.:Mobile customer integration: A smartphone application prototype for conducting mobile conjoint studies.. In: International Conference on Mobile Business Mobile Internet: a new paradigm in a new value network. Como, Italy, 2011. — EXT20, p. Paper 14
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Koene, Philip ; Köbler, Felix ; Leimeister, Jan Marco ; Krcmar, Helmut:Touch’n’Document - A Nutrition Management System on an NFC-tagged TFT-display.. In: Traver, V. ; Fred, A. L. N. ; Filipe, J. ; Gamboa, H. (eds.): 4th International Joint Conference on Biomedical Engineering Systems and Technologies. Rome, Italy, 2011 — ISBN 978-989-8425-34-8
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Atzmueller, Martin ; Benz, Dominik ; Hotho, Andreas ; Stumme, Gerd:Towards Mining Semantic Maturity in Social Bookmarking Systems.. In: Passant, A. ; Fernández, S. ; Breslin, J. ; Bojārs, U. (eds.): Proceedings of the 4th International Workshop on Social Data on the Web (SDoW2011), 2011
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Krohn, Michael ; Klein, Niklas ; Jandt, Silke ; Atzmueller, Martin ; Scholz, Christoph ; Hoffmann, Holger ; Kniewel, Romy ; Evers, Christoph: Das Forschungszentrum für Informationstechnik-Gestaltung (ITeG). In: Praxis der Informationsverarbeitung und Kommunikation vol. 34 (2011), Nr. 4, pp. 238–240
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Knierim, A.:Vorhang auf für ein Vorratsdatenurteil 2.0?. In: Taeger, J. (ed.): Die Welt im Netz. Folgen für Wirtschaft und Gesellschaft, 2011, pp. 431–447
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Peters, C. ; Drees, A. ; Leppert, F. ; Menschner, P. ; Leimeister, J. M. ; Möller, K. ; Greiner, W.:Productivity of Telemedical Services - A State of the Art Analysis of Input and Output Factors.. In: 21. International RESER Conference (RESER) 2011. Hamburg, Germany, 2011. — 285 (48-11)
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Knierim, A.:Technikgestaltung bei Vorratsdatenspeicherung & Quick Freeze.. In: Horster, P. (ed.): Tagungsband D-A-CH Security 2011, 2011, pp. 480–490
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Skistims, H. ; Voigtmann, C. ; David, K. ; Roßnagel, A.: Datenschutzgerechte Gestaltung von kontextvorhersagenden Algorithmen. In: Datenschutz und Datensicherheit (2011)
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Hoffmann, A. ; Peters, C. ; Leimeister, J. M.:Student sucht Dienstleistung, Dienstleistung sucht Student: Erstellung individualisierter Dienstleistungsangebote in Studierendenportalen.. In: Heiß, H. ; Pepper, P. ; Schlingloff, H. ; Schneider, J. (eds.): Informatik 2011 - Informatik schafft Communities. Beiträge der 41. Jahrestagung der Gesellschaft für Informatik e.V. (GI). vol. P-192. Berlin, Germany : LNI, 2011. — 292 (55-11), pp. 1–12
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Atzmueller, Martin ; Doerfel, Stephan ; Hotho, Andreas ; Mitzlaff, Folke ; Stumme, Gerd:Face-to-Face Contacts during LWA 2010 - Communities, Roles, and Key Players.. In: Working Notes of the LWA 2011 - Learning, Knowledge, Adaptation, 2011
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Söllner, M. ; Leimeister, J. M.:Vertrauensunterstützung für ubiquitäre Systeme – von der Vertrauenstheorie zu Anforderungen an ubiquitäre Systeme.. In: 9. Berliner Werkstatt Mensch-Maschine-Systeme (BWMMS). Berlin, Germany, 2011, pp. 1–2
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Mitzlaff, Folke ; Atzmueller, Martin ; Stumme, Gerd ; Hotho, Andreas:On the Semantics of User Interaction in Social Media (Extended Abstract, Resubmission).. In: Proc. LWA 2013 (KDML Special Track). Bamberg, Germany : University of Bamberg, 2011
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Heinson, D. ; Dirk, D. ; Wegener, C.: Virtuelle Spurensuche - Digitale Forensik in Cloud-Umgebungen. In: Datenschutz und Datensicherheit (DuD) vol. 35 (2011), Nr. 5, pp. 329–332
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Hegenberg, J. ; Schmidt, L.: Teleoperationsunterstützung über ein HMD und ein kopfbewegungsgesteuertes Stereokamerasystem auf einem entfernten mobilen Roboter. In: Datenbrillen : Aktueller Stand von Forschung und Umsetzung sowie zukünftiger Entwicklungsrichtungen, Expertenworkshop der Bundesanstalt für Arbeitsschutz und Arbeitsmedizin, eingeladener Vortrag, Datenbrillen : Aktueller Stand von Forschung und Umsetzung sowie zukünftiger Entwicklungsrichtungen, Expertenworkshop der Bundesanstalt für Arbeitsschutz und Arbeitsmedizin, eingeladener Vortrag.. Dortmund (2011)
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Dieser Beitrag beschreibt anhand eines konkreten Anwendungsfalls aus dem Bereich der Robotik, wie die Fähigkeiten des Menschen bei der Gestaltung einer Head-Mounted-Display-basierten Mensch-Roboter-Schnittstelle technisch umgesetzt werden können. Den inhaltlichen Rahmen bildet das Forschungsprojekt RoboGasInspector, dessen Ziel es ist, ein innovatives Mensch-Maschine-System mit mobilen und mit Gasfernmesstechnik ausgestatteten Inspektionsrobotern zu entwickeln und zu evaluieren, welches die Detektion und Ortung von Gaslecks in räumlich ausgedehnten technischen Anlagen weitgehend autonom bewältigt. Nach aktuellem Stand von Forschung und Entwicklung kann ein technisches System insbesondere in dynamischen Umgebungen nicht absolut fehlerfrei und ausfallsicher realisiert werden. Aus Gründen der Akzeptanz und der Anlagensicherheit ist deshalb eine Überwachung der mobilen Roboter erforderlich, die sich teilautonom durch die Anlage bewegen. Das Systemkonzept sieht eine zentrale Leitwarte mit zwei Benutzungsschnittstellen vor. Die eine Schnittstelle dient der Planung, Überwachung und Dokumentation der autonomen Funktion des Systems und die andere der Teleoperation des Roboters durch einen menschlichen Operator. Die Teleoperation soll menschliche Fähigkeiten synergetisch in das weitgehend automatisierte System integrieren und wird eingesetzt, falls der Mensch in der Lage ist, bei der Bearbeitung einer Aufgabe bessere Ergebnisse zu erzielen. Zur Unterstützung der Teleoperation wird ein Assistenzsystem eingesetzt, das dem Operator die visuellen Informationen liefert, die er benötigt um bei der Steuerung des Roboters am entfernten Einsatzort sein Situationsbewusstsein aufrechtzuerhalten. Das Assistenzsystem besteht aus einem Head-Mounted Display zur Ausgabe augmentierter Videobilder, die von einem Stereokamerasystem auf dem Roboter aufgezeichnet werden. Die Gestaltung der Teleoperationsunterstützung zielt darauf ab, dem Nutzer das Gefühl zu vermitteln mit den eigenen Augen aus der Perspektive des Roboters zu sehen bzw. im Sinne einer Telepräsenz selber vor Ort zu sein. Dazu wird bei der technischen Umsetzung von den menschlichen Fähigkeiten ausgegangen. Analogien zwischen technischen Parametern und quantitativen Maßen menschlicher Fähigkeiten werden genutzt, in dem die Parameter den zugehörigen Maßen angenähert werden. Eine Auswahl dieser Analogien wird in diesem Beitrag wiedergegeben und die Nachempfindung der menschlichen Wahrnehmung und Motorik durch Gegenüberstellung quantitativer Wertpaare beurteilt.
Mitzlaff, Folke ; Atzmueller, Martin ; Benz, Dominik ; Hotho, Andreas ; Stumme, Gerd:Community Assessment using Evidence Networks.. In: Analysis of Social Media and Ubiquitous Data, LNAI. vol. 6904, 2011
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Menschner, P. ; Prinz, A. ; Leimeister, J. M.:Empirically Grounded Design of a Nutrition Tracking System for Patients with Eating Disorders.. In: Ahson, S. ; Ilyas, M. (eds.): Near Field Communications Handbook. Boca Raton,USA & London, UK : Auerbach, 2011. — 222 (08-11), pp. 305–324
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Menschner, P. ; Prinz, A. ; Koene, P. ; Köbler, F. ; Altmann, M. ; Krcmar, H. ; Leimeister, J. M.: Reaching into patients‘ homes - participatory designed AAL services. In: Electronic Markets vol. 21 (2011), Nr. 1, pp. 63–76. — 211 (03-11)
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Menschner, P. ; Peters, C. ; Leimeister, J. M.:Engineering Knowledge-Intense, Person-Oriented Services – A State of the Art Analysis.. In: European Conference on Information Systems (ECIS). Helsinki, Finland, 2011. — 221 (07-11)
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Hartmann, M. ; Prinz, A. ; Hirdes, E. ; Görlitz, R. ; Rashid, A. ; Weinhardt, C. ; Leimeister, J. M.:Web 2.0 im Gesundheitswesen – Ein Literature Review zur Aufarbeitung aktueller Forschungsergebnisse zu Health 2.0 Anwendungen.. In: Wirtschaftsinformatik Konferenz (WI). vol. 10. Zürich, Schweiz, 2011. — 210 (02-11)
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Mülders, Peter ; Gruner, Stefan ; Thang, Nguyen Xuan:Model-driven design plus artificial intelligence for wireless sensor networks software development.. In: Proceeding of the 2nd workshop on Software engineering for sensor network applications. Hawaii, 2011, pp. 63–64
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Meis, Jochen ; Wojciechowski, Manfred:Home service engineering for sensor networks.. In: Chong, N.-Y. ; Mastrogiovanni, F. (eds.): Handbook of research on ambient intelligence and smart environments: Trends and perspective. Hershey, Pennsylvania, USA : Information Science Publishing, 2011, pp. 220–238
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Hildebrandt, M. ; Pocs, M. ; Dittmann, J. ; Ulrich, M. ; Merkel, R. ; Fries, T.:Privacy preserving challenges: New Design Aspects for Latent Fingerprint Detection Systems with contact-less Sensors for Future Preventive Applications in Airport Luggage Handling.. In: Proceedings of BioID 2011, Lecture Notes in Computer Science (LNCS). vol. 6583 : Springer, 2011, pp. 286–298
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Söllner, Matthias:Deriving Trust Supporting Components for Ubiquitous Computing Systems.. In: International Conference on Information Systems (ICIS) 2011, Doctoral Consortium. Shanghai, China, 2011
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Söllner, M. ; Hoffmann, A. ; Hoffmann, H. ; Leimeister, J. M.:Towards a Theory of Explanation and Prediction for the Formation of Trust in IT Artifacts.. In: 10. Annual Workshop on HCI Research in MIS. Shanghai, China, 2011. — 288 (51-11), pp. 1–6
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Geihs, Kurt ; Evers, Christoph ; Reichle, Roland ; Wagner, Michael ; Khan, Mohammad Ullah:Development Support for QoS-Aware Service-Adaptation in Ubiquitous Computing Applications.. In: Proceedings of the ACM Symposium on Applied Computing (SAC), 2011
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Mauro, C. ; Leimeister, J. M. ; Krcmar, H.: Medizintechnik goes SOA. In: Wirtschaftsinformatik und Management (2011), Nr. 2, pp. 24–29. — 226 (12-11)
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Mauro, C. ; Leimeister, J. M. ; Krcmar, H.: Serviceorientierte Integration medizinischer Geräte - ganzheitliche IT-Unterstützung klinischer Prozesse. In: Informatik-Spektrum vol. 34 (2011), Nr. 3, pp. 276–285. — 237 (23-11)
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Mauro, C. ; Leimeister, J. M. ; Krcmar, H.:The Nature of Medical Device Services. A Multiple-case Study.. In: International Conference on Biomedical Electronics and Devices (BIODEVICES) 2011. Rome, Italy, 2011. — EXT28, pp. 250–255
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Mauro, C. ; Leimeister, J. M. ; Krcmar, H.:SODA@Med – Ein Framework zur serviceorientierten Integration medizinischer Geräte in Krankenhausinformationssysteme.. In: Wirtschaftsinformatik Konferenz (WI) 2011. vol. 10. Zürich, Schweiz, 2011. — 229 (14-11)
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Söllner, M. ; Hoffmann, A. ; Altmann, M. ; Hoffmann, H. ; Leimeister, J. M.:Vertrauen als Designaspekt – Systematische Ableitung vertrauensunterstützender Komponenten am Beispiel einer mobilen Anwendung.. In: VHB Jahrestagung 2011. Kaiserslautern, Germany, 2011. — 224 (10-11)
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Marcus, A. (ed.):Design, User Experience, and Usability. Theory, Methods, Tools and Practice - First International Conference, DUXU 2011, Held as Part of HCI International 2011, Orlando, FL, USA, July 9-14, 2011, Proceedings, 2 Part II, Lecture Notes in Computer Science. vol. 6770. Berlin : Springer, 2011
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The two-volume set LNCS 6769 + LNCS 6770 constitutes the proceedings of the First International Conference on Design, User Experience, and Usability, DUXU 2011, held in Orlando, FL, USA in July 2011 in the framework of the 14th International Conference on Human-Computer Interaction, HCII 2011, incorporating 12 thematically similar conferences. A total of 4039 contributions was submitted to HCII 2011, of which 1318 papers were accepted for publication. The total of 154 contributions included in the DUXU proceedings were carefully reviewed and selected for inclusion in the book. The papers are organized in topical sections on DUXU theory, methods and tools; DUXU guidelines and standards; novel DUXU: devices and their user interfaces; DUXU in industry; DUXU in the mobile and vehicle context; DXU in Web environment; DUXU and ubiquitous interaction/appearance; DUXU in the development and usage lifecycle; DUXU evaluation; and DUXU beyond usability: culture, branding, and emotions.
Nägle, S. ; Schmidt, L.:Analyse der Computernutzung älterer Menschen: Einflussfaktoren und Gestaltungsbedarf.. In: Gesellschaft für Arbeitswissenschaft e. V. (ed.): Mensch, Technik, Organisation - Vernetzung im Produktentstehungs- und -herstellungsprozess: 57. Kongress der Gesellschaft für Arbeitswissenschaft (Chemnitz 2011). Dortmund : GfA-Press, 2011, pp. 515–519
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Ältere Menschen nutzen im Vergleich zu jüngeren Menschen den Computer seltener und mit einem eingeschränkten Nutzungsspektrum. In einer Studie mit 54 Personen zwischen 50 und 108 Jahren zeigte sich, dass 91 % der befragten Computernutzer über private Helfer verfügen, die ihnen bei der Einarbeitung und Nutzung der Computer helfen. Die Hilfe ist detailliert, findet zeitnah und meist zuhause statt. Die älteren Menschen nutzen die Hilfe sowohl zu Lernzwecken als auch für die Anschaffung und Wartung ihrer Systeme. Über die in der aktuellen Literatur diskutierten ergonomischen Lösungsansätze zur Gestaltung von Computersystemen für ältere Menschen hinausgehend ergeben sich dadurch Hinweise für organisatorische Verbesserungsmöglichkeiten.
Skubch, Hendrik ; Wagner, Michael ; Reichle, Roland ; Geihs, Kurt: A modelling language for cooperative plans in highly dynamic domains. In: Mechatronics vol. In Press, Corrected Proof (2011)
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Hoffmann, A. ; Hofmann, H. ; Jandt, S. ; Leimeister, J. M.:Integration rechtlicher Anforderungen an soziotechnische Systeme in frühe Phasen der Systementwicklung.. In: 6. Konferenz Mobile und ubiquitäre Informationssysteme (MMS), 2011, pp. 72–76
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Hoffmann, A. ; Jandt, S. ; Hoffmann, H. ; Leimeister, J. M.:Integration rechtlicher Anforderungen an soziotechnische Systeme in frühe Phasen der Systementwicklung.. In: Höpfner, H. ; Specht, G. ; Ritz, T. ; Bunse, C. (eds.): 6. Konferenz Mobile und ubiquitäre Informationssysteme (MMS) 2011. Kaiserslautern, Germany, 2011. — 219 (05-11)
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Hoffmann, A. ; Leimeister, J. M.:Fachwissen nutzen – Kombination von Anforderungen verschiedener Disziplinen bei der Entwicklung ubiquitärer Anwendungen.. In: Schmid, S. ; Elepfandt, M. ; Adenauer, J. ; Lichtenstein, A. (eds.): Reflexionen und Visionen der Mensch-Maschine Interaktion - Aus der Vergangenheit lernen, Zukunft gestalten. 9. Berliner Werkstatt Mensch-Maschine-Systeme (BWMMS). vol. Fortschr.-Ber. VDI Reihe 22, Nr. 33. Düsseldorf, Germany : VDI Verlag, 2011. — 291 (54-11)
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Skubch, Hendrik ; Saur, Daniel ; Geihs, Kurt:Resolving Conflicts in Highly Reactive Teams.. In: 17th GI/ITG Conference on Communication in Distributed Systems, KiVS 2011, March 8-11, 2011, Kiel, Germany, OASICS, 2011, pp. 170–175
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Atzmueller, Martin:Data Mining.. In: McCarthy, P. M. ; Boonthum, C. (eds.): Applied Natural Language Processing and Content Analysis: Advances in Identification, Investigation and Resolution. : IGI Global, 2011
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Knierim, A: Kumulation von Datensammlungen auf Vorrat. In: Zeitschrift für Datenschutz (ZD) (2011), Nr. 1, pp. 17–23
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Fähling, J. ; Langer, S. ; Schölkopf, J. M. ; Leimeister, J. M. ; Krcmar, H. ; Lindemann, U.:Enhancing the selection of methods for customer integration in innovation processes through a process-oriented description framework.. In: International Conference on Research into Design (ICoRD) 2011. Bangalore, India, 2011
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Atzmueller, Martin ; Doerfel, Stephan ; Hotho, Andreas ; Mitzlaff, Folke ; Stumme, Gerd:Face-to-Face Contacts during a Conference: Communities, Roles, and Key Players.. In: Proc. Workshop on Mining Ubiquitous and Social Environments (MUSE 2011) at ECML/PKDD 2011, 2011
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Hoss, D.:Personalmanagement in der Wohnungs- und Immobilienwirtschaft.. In: Mändle, E. (ed.): Wohnungs- und Immobilienlexikon : Haufe-Lexware, 2011, pp. 1268–1270
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Dünnebeil, S. ; Leimeister, J. M. ; Krcmar, H.:Marketplaces for health applications. Assessment of Requirements in Case of the German Public Health System.. In: 4. International Joint Conference on Biomedical Engineering Systems and Technologies (BIOSTEC) 2011. Rome, Italy, 2011. — EXT18
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Atzmueller, M. ; Hotho, A. (eds.):Proceedings of the 2011 International Workshop on Mining Ubiquitous and Social Environments (MUSE 2011). Athens, Greece : ECML/PKDD 2011, 2011
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Atzmueller, M. ; Hotho, A. ; Strohmaier, M. ; Chin, A. (eds.):Analysis of Social Media and Ubiquitous Data - International Workshops MSM 2010, Toronto, Canada, June 13, 2010, and MUSE 2010, Barcelona, Spain, September 20, 2010, Revised Selected Papers, Lecture Notes in Computer Science. vol. 6904 : Springer, 2011 — ISBN 978-3-642-23598-6
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Illig, Jens ; Hotho, Andreas ; Jäschke, Robert ; Stumme, Gerd:A Comparison of Content-Based Tag Recommendations in Folksonomy Systems.. In: Wolff, K. E. ; Palchunov, D. E. ; Zagoruiko, N. G. ; Andelfinger, U. (eds.): Knowledge Processing and Data Analysis, Lecture Notes in Computer Science. vol. 6581. Berlin/Heidelberg : Springer, 2011 — ISBN 978-3-642-22139-2, pp. 136–149
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Recommendation algorithms and multi-class classifiers can support users of social bookmarking systems in assigning tags to their bookmarks. Content based recommenders are the usual approach for facing the cold start problem, i.e., when a bookmark is uploaded for the first time and no information from other users can be exploited. In this paper, we evaluate several recommendation algorithms in a cold-start scenario on a large real-world dataset.
Atzmueller, Martin ; Lemmerich, Florian:VIKAMINE - A Rich-Client Environment for Intelligent Pattern Mining and Subgroup Discovery.. In: Proceedings of the LWA 2011 - Learning, Knowledge, Adaptation, 2011
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Atzmueller, Martin ; Lemmerich, Florian: Applied Descriptive Pattern Mining. In: 2011, L. (ed.) (2011)
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Atzmueller, Martin ; Mitzlaff, Folke:Efficient Descriptive Community Mining.. In: Proc. 24th Intl. FLAIRS Conference : AAAI Press, 2011
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Pocs, M.:Abgleich im Erfassungsgerät.. In: Schartner, P. ; Taeger, J. (eds.): Tagungsband D•A•CH Security 2011, 2011, pp. 346–360
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Pocs, M.: Veranstaltungsbesprechung - Tagung „Datenschutz in Europa“ am 5.–6. Mai 2011 in Stuttgart. In: Datenschutz und Datensicherheit (DuD) (2011), pp. 508–509
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Dünnebeil, Sebastian ; Köbler, Felix ; Koene, Philip ; Leimeister, Jan Marco ; Krcmar, Helmut:Encrypted NFC emergency tags based on the German Telematics Infrastructure.. In: Third International Workshop on Near Field Communication (NFC). Hagenberg, Austria, 2011. — JML_EXT17
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Drees, A. ; Langkau, T. ; Leppert, F. ; Peters, C. ; Soltani, N. ; Gök, M. ; Menschner, P. ; Greiner, W. ; et al.:Nutzung von Prozessreferenzmodellen zur Produktivitätsmessung und -steigerung von Dienstleistungen.. In: Controlling - Zeitschrift für erfolgsorientierte Unternehmenssteuerung. vol. 23, 2011, pp. 516–522
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Prinz, A. ; Menschner, P. ; Altmann, M. ; Leimeister, J. M.:inSERT - An NFC-based Self-Reporting Questionnaire for Patients with Fine Motor Diseases.. In: Third International Workshop on Near Field Communication (NFC). Hagenberg, Austria, 2011. — 209 (01-11), pp. 26–31
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Ebel, P.:Möglichkeiten zur IT-gestützten Durchführung von Lead User Workshops.. In: Wirtschaftsinformatik 2011 (Poster Präsentation); 16. - 18. Februar 2011. Zürich, Switzerland, 2011
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Pocs, M.: Gestaltung von Fahndungsdateien - Verfassungsverträglichkeit biometrischer Systeme. In: Datenschutz und Datensicherheit (DuD) (2011), pp. 163–168
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Hoss, D.:Nachbarrecht im Wohnbereich.. In: Mändle, E. (ed.): Wohnungs- und Immobilienlexikon. Zweite. : Haufe-Lexware, 2011, p. 1187
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Hoss, D.: Auskunftsrecht des Betroffenen aus § 34 Abs. 1 BDSG in der Praxis: wirksames Instrument oder zahnloser Tiger?. In: Recht der Datenverarbeitung (2011), pp. 6–11
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Prinz, A. ; Menschner, P. ; Maier, A. ; Holm, T. ; Leimeister, J. M.:Assist2ALS – ein Konzept für eine NFC-basierte, mobile Lösung zur Unterstützung der medizinischen Dokumentation sowie der Logistik von Ernährungsprodukten und Verbrauchsmaterialien für ALS Patienten.. In: 56. Jahrestagung der Deutschen Gesellschaft für Medizinische Informatik, Biometrie und Epidemiologie (GMDS). Mainz, Germany, 2011. — 240 (25-11)
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Prinz, A. ; Menschner, P. ; Leimeister, J. M.:Applying NFC to self-reported electronic data capture. A chance for patients with impaired fine motor skills.. In: Research Track WIMA 5th Global NFC Applications Products & Services Congress 2011. Monaco, Monaco, 2011. — 225 (11-11)
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2010[ to top ]

Blohm, I. ; Ott, F. ; Bretschneider, U. ; Huber, M. ; Rieger, M. ; Glatz, F. ; Koch, M. ; Leimeister, J. M. ; et al.:Extending Open Innovation Platforms into the real world - Using Large Displays in Public Spaces.. In: 10. European Academy of Management Conference (EURAM) 2010. Rome, Italy, 2010. — 197 (45-10)
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Schmidt, L.:Assistenzsysteme für den Arbeitsplatz LKW - Herausforderungen und Möglichkeiten.. In: Arbeitsmedizin, B. für A. und (ed.): AmI und Arbeitswissenschaft - Chancen und Risiken neuer I&K-Technologien in der Arbeitsumgebung (Dortmund 2010), eingeladener Vortrag. Dortmund : BAuA, 2010, pp. 79–88
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Duennebeil, S. ; Sunyaev, A. ; Blohm, I. ; Leimeister, J. M. ; Krcmar, H.:Do German physicians want electronic health services? A characterization of potential adopters and rejectors in German ambulatory care.. In: 3. International Conference on Health Informatics (HealthInf) 2010. Valencia, Spain, 2010. — 163 (11-10)
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Nicolescu, Valentin ; Leimeister, Jan Marco ; Krcmar, Helmut:Natural speaking (inter)faces for cars.. In: Multikonferenz Wirtschaftsinformatik (MKWI). Göttingen, Germany, 2010 — ISBN 978-3-941875-31-9
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Klein, Niklas ; Sigg, Stephan ; David, Klaus ; Beigl, Michael:DAG Based Context Reasoning: Optimised DAG Creation.. In: Proceedings of Workshop on Context-Systems Design, Evaluation and Optimisation. ARCS 2010 - Architecture of Computing Systems. Hannover, Germany, 2010
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Skubch, Hendrik ; Wagner, Michael ; Reichle, Roland ; Triller, Stefan ; Geihs, Kurt:Towards a Comprehensive Teamwork Model for Highly Dynamic Domains.. In: Proceedings of the 2nd International Conference on Agents and Artificial Intelligence, 2010
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Hoffmann, A. ; Hoffmann, H. ; Leimeister, J. M.:Nutzerintegration in die Anforderungserhebung für Ubiquitous Computing Systeme.. In: Workshop über Selbstorganisierende, adaptive, kontextsensitive verteilte Systeme (SAKS 2010). Electronic Communications of the EASST. Berlin, Germany : European Association of Software Science and Technology (EASST), 2010. — 188 (36-10), p. 9
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Manouchehri, S. ; Söllner, M. ; Leimeister, J. M.:Trust as a design aspect of context aware systems.. In: 23. International Conference on Architecture of Computing Systems (ARCS) 2010. Hannover, Germany, 2010. — 169 (18-10)
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Reichle, Roland:Information Exchange and Fusion in Dynamic and Heterogeneous Distributed Environments. Wilhelmshöher Allee 73, 34121 Kassel, Germany, University of Kassel, Fachbereich 16: Elektrotechnik/Informatik, Distributed Systems Group, PhD dissertation, 2010
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Context awareness, dynamic reconfiguration at runtime and heterogeneity are key characteristics of future distributed systems, particularly in ubiquitous and mobile computing scenarios. The main contributions of this dissertation are theoretical as well as architectural concepts facilitating information exchange and fusion in heterogeneous and dynamic distributed environments. Our main focus is on bridging the heterogeneity issues and, at the same time, considering uncertain, imprecise and unreliable sensor information in information fusion and reasoning approaches. A domain ontology is used to establish a common vocabulary for the exchanged information. We thereby explicitly support different representations for the same kind of information and provide Inter-Representation Operations that convert between them. Special account is taken of the conversion of associated meta-data that express uncertainty and impreciseness. The Unscented Transformation, for example, is applied to propagate Gaussian normal distributions across highly non-linear Inter-Representation Operations. Uncertain sensor information is fused using the Dempster-Shafer Theory of Evidence as it allows explicit modelling of partial and complete ignorance. We also show how to incorporate the Dempster-Shafer Theory of Evidence into probabilistic reasoning schemes such as Hidden Markov Models in order to be able to consider the uncertainty of sensor information when deriving high-level information from low-level data. For all these concepts we provide architectural support as a guideline for developers of innovative information exchange and fusion infrastructures that are particularly targeted at heterogeneous dynamic environments. Two case studies serve as proof of concept. The first case study focuses on heterogeneous autonomous robots that have to spontaneously form a cooperative team in order to achieve a common goal. The second case study is concerned with an approach for user activity recognition which serves as baseline for a context-aware adaptive application. Both case studies demonstrate the viability and strengths of the proposed solution and emphasize that the Dempster-Shafer Theory of Evidence should be preferred to pure probability theory in applications involving non-linear Inter-Representation Operations.
Körner, Christian ; Benz, Dominik ; Strohmaier, Markus ; Hotho, Andreas ; Stumme, Gerd:Stop Thinking, start Tagging - Tag Semantics emerge from Collaborative Verbosity.. In: Proceedings of the 19th International World Wide Web Conference (WWW 2010). Raleigh, NC, USA : ACM, 2010
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Recent research provides evidence for the presence of emergent semantics in collaborative tagging systems. While several methods have been proposed, little is known about the factors that influence the evolution of semantic structures in these systems. A natural hypothesis is that the quality of the emergent semantics depends on the pragmatics of tagging: Users with certain usage patterns might contribute more to the resulting semantics than others. In this work, we propose several measures which enable a pragmatic differentiation of taggers by their degree of contribution to emerging semantic structures. We distinguish between categorizers, who typically use a small set of tags as a replacement for hierarchical classification schemes, and describers, who are annotating resources with a wealth of freely associated, descriptive keywords. To study our hypothesis, we apply semantic similarity measures to 64 different partitions of a real-world and large-scale folksonomy containing different ratios of categorizers and describers. Our results not only show that ‘verbose’ taggers are most useful for the emergence of tag semantics, but also that a subset containing only 40% of the most ‘verbose’ taggers can produce results that match and even outperform the semantic precision obtained from the whole dataset. Moreover, the results suggest that there exists a causal link between the pragmatics of tagging and resulting emergent semantics. This work is relevant for designers and analysts of tagging systems interested (i) in fostering the semantic development of their platforms, (ii) in identifying users introducing “semantic noise”, and (iii) in learning ontologies.
Manouchehri, Shakib:Social Software in Unternehmen - Nutzenpotentiale und Adoption in der innerbetrieblichen Zusammenarbeit, Szyperski, N. ; Matthes, W. ; Winand, U. ; Griese, J. ; von Kortzfleisch, H. ; Theuvsen, L. ; Al-Laham, A. (eds.). Planung, Organisation und Unternehmungsführung, 127.
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Kleist, T. ; Roßnagel, A. ; Scheuer, A. (eds.):Europäisches und nationales Medienrecht im Dialog – Recht – Politik – Kultur – Technik – Nutzung, Schriftenreihe des Instituts für Europäisches Medienrecht. vol. 39 : Nomos, 2010
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Lau, Sian Lun ; König, Immanuel ; David, Klaus ; Parandian, Baback ; Carius-Düssel, Christine ; Schultz, Martin:Supporting patient monitoring using activity recognition with a smartphone.. In: 2010 7th International Symposium on Wireless Communication Systems. York, England : IEEE, 2010, pp. 810–814
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In our work we envision the use of context awareness to complement and improve telemedicine services. One concrete example is the recognition of physical activity (PA) for therapies and treatments. The usage of context can provide newer services by assisting medical professionals and patients to obtain implicit information. We introduce the Context Aware Remote Monitoring Assistant (CARMA), an application implemented on the MATRIX telemedicine middleware platform. It enables activity recognition for patients using non-obtrusive devices. In this paper, a movement recognition approach is investigated using a smartphone with a built-in accelerometer. Experiments were carried out to compare the influences of classification algorithms, features and combinations for feature extraction conditions on the recognition accuracy. The obtained results indicated that the approach is viable and shows much potential.
Schmidt, L.: Gesten und mehr - wie sich die Interaktion verändert. In: World Usability Day 2010, Vortrag, World Usability Day 2010, Vortrag.. Kassel (2010)
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Schmidt, L.: Mensch-Maschine-Systemtechnik. In: Universität Kassel, Antrittsvorlesung, Universität Kassel, Antrittsvorlesung.. Kassel (2010)
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Berendt, Bettina ; Hotho, Andreas ; Stumme, Gerd: Bridging the Gap--Data Mining and Social Network Analysis for Integrating Semantic Web and Web 2.0. In: Web Semantics: Science, Services and Agents on the World Wide Web vol. 8 (2010), Nr. 2-3, pp. 95–96. — Bridging the Gap--Data Mining and Social Network Analysis for Integrating Semantic Web and Web 2.0; The Future of Knowledge Dissemination: The Elsevier Grand Challenge for the Life Sciences
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Berkovich, M. ; Esch, S. ; Leimeister, J. M. ; Krcmar, H.:Towards Requirements Engineering for "Software as a Service".. In: Multikonferenz Wirtschaftsinformatik (MKWI) 2010. Göttingen, Germany, 2010. — 167 (15-10)
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Benz, Dominik ; Hotho, Andreas ; Stützer, Stefan ; Stumme, Gerd:Semantics made by you and me: Self-emerging ontologies can capture the diversity of shared knowledge.. In: Proceedings of the 2nd Web Science Conference (WebSci10). Raleigh, NC, USA, 2010
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Benz, Dominik ; Hotho, Andreas ; Jäschke, Robert ; Stumme, Gerd ; Halle, Axel ; Lima, Angela Gerlach Sanches ; Steenweg, Helge ; Stefani, Sven:Academic Publication Management with PUMA - collect, organize and share publications.. In: Lalmas, M. ; Jose, J. ; Rauber, A. ; Sebastiani, F. ; Frommholz, I. (eds.): Proceedings of the European Conference on Research and Advanced Technology for Digital Libraries (ECDL) 2010, Lecture Notes in Computer Science. vol. 6273. Berlin/Heidelberg : Springer, 2010, pp. 417–420
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The PUMA project fosters the Open Access movement und aims at a better support of the researcher’s publication work. PUMA stands for an integrated solution, where the upload of a publication results automatically in an update of both the personal and institutional homepage, the creation of an entry in a social bookmarking systems like BibSonomy, an entry in the academic reporting system of the university, and its publication in the institutional repository. In this poster, we present the main features of our solution.
Lau, Sian Lun ; David, Klaus:Movement recognition using the accelerometer in smartphones.. In: 2010 Future Network & Mobile Summit. Florence, Italy : IEEE, 2010, pp. 1–9
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The area of activity recognition is essential for context-aware systems. Previous and current investigations demonstrate that the accelerometer is suitable for accurate movement and activity recognition. Since smartphones are used by people in their daily lives, they can be seen as an attractive sensor device for the purpose of activity recognition. In our work, experiments have been carried out to investigate the suitability of the built-in accelerometer by comparing the influences of classification algorithms, features and the combination of sampling rates and window sizes for features extraction have on the classification accuracy. Obtained results indicate that smartphones similar to the test device provide good accuracy in recognizing common movements.
Dünnebeil, S. ; Köbler, F. ; Koene, P. ; Leimeister, J. M. ; Krcmar, H.:Encrypted NFC-emergency tags for German telemedicine.. In: ID WORLD International Congress. Milano, Italy : ID World, 2010. — 199 (47-10)
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Atzmueller, Martin ; Mitzlaff, Folke:Towards Mining Descriptive Community Patterns.. In: Workshop on Mining Patterns and Subgroups : Lorentz Center, Leiden, The Netherlands. Awarded with the Best Discovery Award, 2010
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Hoffmann, H. ; Leimeister, J. M. ; Krcmar, H.:Tool support for the participatory design of end user oriented applications in the automobile.. In: European Conference on Information Systems (ECIS). Pretoria, South Africa, 2010. — 178 (26-10)
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Brgulja, Nermin ; Kusber, Rico ; David, Klaus:Feature Weighting for CPM-Based Context Validation.. In: Lukowicz, P. ; Kunze, K. ; Kortuem, G. (eds.): Proceedings of the 5th European Conference on Smart Sensing and Context. Berlin, Heidelberg : Springer Berlin Heidelberg, 2010 — ISBN 978-3-642-16982-3, pp. 82–93
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Context Pattern Method (CPM) is a statistical method that is used to quantify the validity of contextual information based on dependent contexts using previous knowledge about the system. The method exploits the interdependencies in a context aware system among entities and the environment in which they reside in order to calculate the Probability of Correctness (PoC) for a context under investigation. PoC expresses the level of confidence, that the contextual information sensed, are in fact correct or not. Obviously, each of the dependent contexts has a different importance to the context that is under investigation. Therefore its influence to the PoC measure needs to be weighted accordingly. In this paper we discuss the concept of feature weighting and show how feature selection algorithms can be applied for this purpose. We apply chi2, relief-f and mutual information, algorithms to the CPM method in order to weight the influence of the individual dependent contexts to the overall PoC measure and evaluate the method’s performance.
Krause, Beate ; Lerch, Hana ; Hotho, Andreas ; Roßnagel, Alexander ; Stumme, Gerd: Datenschutz im Web 2.0 am Beispiel des sozialen Tagging-Systems BibSonomy. In: Informatik-Spektrum. Berlin / Heidelberg, Springer (2010), pp. 1–12
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Soziale Tagging-Systeme gehören zu den in den vergangenen Jahren entstandenen Web2.0-Systemen. Sie ermöglichen es Anwendern, beliebige Informationen in das Internet einzustellen und untereinander auszutauschen. Je nach Anbieter verlinken Nutzer Videos, Fotos oder Webseiten und beschreiben die eingestellten Medien mit entsprechenden Schlagwörtern (Tags). Die damit einhergehende freiwillige Preisgabe oftmals persönlicher Informationen wirft Fragen im Bereich der informationellen Selbstbestimmung auf. Dieses Grundrecht gewährleistet dem Einzelnen, grundsätzlich selbst über die Preisgabe und Verwendung seiner persönlichen Daten zu bestimmen. Für viele Funktionalitäten, wie beispielsweise Empfehlungsdienste oder die Bereitstellung einer API, ist eine solche Kontrolle allerdings schwierig zu gestalten. Oftmals existieren keine Richtlinien, inwieweit Dienstanbieter und weitere Dritte diese öffentlichen Daten (und weitere Daten, die bei der Nutzung des Systems anfallen) nutzen dürfen. Dieser Artikel diskutiert anhand eines konkreten Systems typische, für den Datenschutz relevante Funktionalitäten und gibt Handlungsanweisungen für eine datenschutzkonforme technische Gestaltung.
Brgulja, Nermin ; Kusber, Rico ; David, Klaus:Validating Context Information in Context Aware Systems.. In: 2010 Sixth International Conference on Intelligent Environments. Kuala Lumpur, Malaysia : IEEE, 2010, pp. 140–145
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Context-aware computing refers to a general class of computing systems that can sense their physical environment and adapt their behavior accordingly. In order to behave properly, such systems rely on valid and reliable context information. Therefore concepts for validating the correctness of context data are required. In our previous research we have introduced the Context Pattern Method (CPM) that calculates the probability of correctness measure, which quantifies the belief that the context information is correct and reliable. In this paper we use the CPM method and two well known statistical classification methods, Linear Discriminant Analysis (LDA) and the Support Vector Machines (SVM), to validate the context information and compare their performances under different conditions.
Leimeister, J. M.:OnkoConnect - Mobile Informationssysteme zur Verbesserung der Lebensqualität krebskranker Jugendlicher - Und was fünf Jahre später daraus geworden ist.. In: Heilmann, H. (ed.): Humane Nutzung der Informationstechnologie. Heidelberg, Germany : Akademische Verlagsgesellschaft AKA GmbH, 2010. — 175 (23-10)
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David, Klaus ; Flach, Alexander: CAR-2-X and Pedestrian Safety: Innovative Collision Avoidance System. In: IEEE Vehicular Technology Magazine vol. 5 (2010), Nr. 1, pp. 70–76
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Traffic accidents involving pedestrians or cyclists cause thousands of fatalities and serious injuries every year. In this article, we present an innovative approach for a collision avoidance system that seeks to reduce these accidents. We also discuss the different architectural approaches utilizing ad hoc and/or cellular technologies and different processing setups and present a physical analysis of the system time available between detection, warning, and reaction to give an overview of the time constraint.
Mitzlaff, Folke ; Benz, Dominik ; Stumme, Gerd ; Hotho, Andreas:Visit me, click me, be my friend: an analysis of evidence networks of user relationships in BibSonomy.. In: Proceedings of the 21st ACM conference on Hypertext and hypermedia, HT ’10. New York, NY, USA : ACM, 2010, pp. 265–270
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Mitzlaff, Folke ; Atzmüller, Martin ; Benz, Dominik ; Hotho, Andreas ; Stumme, Gerd:Community Assessment using Evidence Networks.. In: Proceedings of the Workshop on Mining Ubiquitous and Social Environments (MUSE2010). Barcelona, Spain, 2010
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Community mining is a prominent approach for identifying (user) communities in social and ubiquitous contexts. While there are a variety of methods for community mining and detection, the effective evaluation and validation of the mined communities is usually non-trivial. Often there is no evaluation data at hand in order to validate the discovered groups. This paper proposes evidence networks using implicit information for the evaluation of communities. The presented evaluation approach is based on the idea of reconstructing existing social structures for the assessment and evaluation of a given clustering. We analyze and compare the presented evidence networks using user data from the real-world social bookmarking application BibSonomy. The results indicate that the evidence networks reflect the relative rating of the explicit ones very well.
Schmidt, L. ; et al.:Informatorisch-mentale Arbeitsformen.. In: Schlick, C. ; Bruder, R. ; Luczak, H. (eds.): Arbeitswissenschaft. Berlin : Springer, 2010, pp. 286–416
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Blohm, I. ; Fähling, J. ; Leimeister, J. M. ; Krcmar, H. ; Fischer, J.:Accelerating customer integration into innovation processes using Pico-Jobs.. In: 22. ISPIM Conference 2010. Bilbao, Spain, 2010. — 196 (44-10)
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Leimeister, J. M.: Kollektive Intelligenz. In: Wirtschaftsinformatik vol. 52. Wiesbaden, Gabler (2010), Nr. 4, pp. 239–242. — 228 (63-10)
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Leimeister, J. M.: Collective Intelligence. In: Business & Information Systems Engineering vol. 2 (2010), Nr. 4, pp. 245–248. — 215 (63-10)
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Kleemann, Frank ; Lamla, Jörn ; Günter, Voß G.:help.yourself@web_2.0. Kunden-arbeit zwischen Selbstbedienung und sozialer Produktion – zur Einführung.. In: Soeffner, H.-G. (ed.): Unsichere Zeiten. Herausforderungen gesellschaftlicher Transformationen. Verhandlungen des 34. Kongresses der DGS in Jena 2008. CD-ROM. Wiesbaden : VS-Verlag, 2010
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Klumpp, D. ; Kubicek, H. ; Roßnagel, A. ; Schulz, W. (eds.):Netzwelt: Werte, Wege, Wandel : Springer, 2010
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Geihs, Kurt ; Bleul, Steffen ; Comes, Diana:Automatische Dienstvermittlung in dienstorientierten Architekturen in Aktion : University of Kassel, 2010. — http://kobra.bibliothek.uni-kassel.de/bitstream/urn:nbn:de:hebis:34-2010042732714/3/Technicalreport2010_1.pdf
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Atzmueller, M. ; Knauf, R. ; Bode, S. ; Farooq, Q.-U.-A. ; Riebisch, M. (eds.):The IWK2010 Workshops: DERIS2010 and EMDT2010. Proceedings of the IWK2010 Workshops: International Workshop on Design, Evaluation and Refinement of Intelligent Systems (DERIS2010) and the First International Workshop on Evolution Support for Model-Based Development and Testing (EMDT2010), CEUR-WS. vol. 646 : RWTH Aachen University, 2010
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Pirali, Andreas ; Klein, Niklas ; Lau, Sian Lun ; David, Klaus:The context sensitive shopping list.. In: Proceedings of Multikonferenz Wirtschaftsinformatik (MKWI 2010). Göttingen, Germany, 2010, pp. 987–997
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Benz, Dominik ; Hotho, Andreas ; Jäschke, Robert ; Krause, Beate ; Stumme, Gerd: Query Logs as Folksonomies. In: Datenbank-Spektrum vol. 10 (2010), Nr. 1, pp. 15–24
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Query logs provide a valuable resource for preference information in search. A user clicking on a specific resource after submitting a query indicates that the resource has some relevance with respect to the query. To leverage the information ofquery logs, one can relate submitted queries from specific users to their clicked resources and build a tripartite graph ofusers, resources and queries. This graph resembles the folksonomy structure of social bookmarking systems, where users addtags to resources. In this article, we summarize our work on building folksonomies from query log files. The focus is on threecomparative studies of the system’s content, structure and semantics. Our results show that query logs incorporate typicalfolksonomy properties and that approaches to leverage the inherent semantics of folksonomies can be applied to query logsas well.
Lau, Sian Lun ; Klein, Niklas ; Pirali, Andreas ; Droegehorn, Olaf ; David, Klaus:Evaluation of the Technology Agnostic Service Creation Approach.. In: Selbstorganiserende, adaptive, kontextsensitive verteilte Systeme 2010 (SAKS2010). vol. 27 : Electronic Communications of the EASST, 2010
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Söllner, M. ; Hoffmann, A. ; Hirdes, E. M. ; Rudakova, L. ; Leimeister, S. ; Leimeister, J. M.:Towards a Formative Measurement Model for Trust.. In: 23. Bled eConference eTrust: Implications for the Individual, Enterprises and Society (Bled) 2010. Bled, Slovenia, 2010. — 191 (39-10), pp. 65–79
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Doerfel, Stephan:The Scaffolding of a Formal Context.. In: Kryszkiewicz, M. ; Obiedkov, S. (eds.): Concept Lattices and Their Applications 2010 - Proceedings of the 7th International Conference on Concept Lattices and Their Applications Sevilla, Spain, October 19-21, 2010.. vol. 672 : CEUR-WS, 2010, pp. 283–293
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The scaffolding of a complete lattice L of finite length was introduced by Rudolf Wille in 1976 as a relative subsemilattice of L that can be constructed using subdirect decomposition. The lattice is uniquely defined by its scaffolding and can be reconstructed from it. Using bonds, we demonstrate how the scaffolding can be constructed from a given formal context and thereby extend the notion of the scaffolding to doubly founded lattices. Further, we explain the creation of a suitable graphical representation of the scaffolding from the context.
Pressler, A. ; Knebel, U. ; Esch, S. ; Kölbl, D. ; Esefeld, K. ; Scherr, J. ; Haller, B. ; Schmidt-Trucksäss, A. ; et al.: An internet-delivered exercise intervention for workplace health promotion in overweight sedentary employees: A randomized trial. In: Preventive Medicine. Amsterdam, Netherlands, Elsevier (2010), Nr. 51, pp. 234–239. — 195 (43-10)
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Lamla, Jörn:Kulturelle Wertschöpfung in digitalen Märkten. Arenen der Intersek-tion sozialer und ökonomischer Welten im Internet.. In: Soeffner, H.-G. (ed.): Unsichere Zeiten. Herausforderungen gesellschaftlicher Transformationen. Verhandlungen des 34. Kongresses der DGS in Jena 2008.. Wiesbaden : VS-Verlag, 2010
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Koene, P. ; Köbler, F. ; Burgner, P. ; Resatsch, F. ; Sandner, U. ; Leimeister, J. M. ; Krcmar, H.:RFID-based media usage panels in real-world settings.. In: European Conference on Information Systems (ECIS). Pretoria, South Africa, 2010. — 179 (27-10)
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Bitzer, P. ; Wegener, R. ; Leimeister, J. M.:Entwicklung eines Produktivitätsmodells zur Systematisierung von Lerndienstleistungen.. In: 40. Jahrestagung der Gesellschaft für Informatik 2010. Leipzig, Germany, 2010. — 189 (37-10)
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Khan, Mohammad Ullah ; of Kassel, F. 16: E. U. (ed.):Unanticipated Dynamic Adaptation of Mobile Applications. Wilhelmshöher Allee 73, 34121 Kassel, Germany, University of Kassel, Fachbereich 16: Elektrotechnik/Informatik, Distributed Systems Group, PhD dissertation, 2010
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Driven by the emergence of mobile and ubiquitous computing there is a growing demand for context-aware applications that can dynamically adapt to their runtime environment. Middleware support for providing such adaptation to mobile applications has been an attractive research and development issue for several years now. However, one of the major challenges to support adaptation is that they can not be always foreseen during the design time. In a ubiquitous computing environment, a number of mobile devices running adaptive applications supported by the instances of the same middleware may come and go in a particular adaptation domain in an unanticipated manner. Moreover, third party services may also appear and disappear with respect to that particular adaptation domain. In componentbased application architectures, with the enhancement of integrating services, mobile applications may benefit from using the components that are provided by other users as well as using third party services. At runtime the application is composed of the components and the services available within the adaptation domain. This thesis provides an approach, including theoretical background, an adaptation middleware, an MDA-based application development methodology and a tool chain, in order to solve such unanticipated adaptation problems.
Mauro, C. ; Sunyaev, A. ; Leimeister, J. M. ; Krcmar, H.:Standardized device services - A design pattern for service oriented integration of medical devices.. In: Hawaii International Conference on System Sciences (HICSS) 2010. Kauai, USA, 2010. — 155 (3-10)
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Kaempgen, Benedikt ; Lemmerich, Florian ; Atzmueller, Martin:Decision-Maker-Aware Design of Descriptive Data Mining.. In: Proc. 55th IWK, International Workshop on Design, Evaluation and Refinement of Intelligent Systems (DERIS), 2010
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Meis, J. ; Menschner, P. ; Leimeister, J. M.:Modellierung von Dienstleistungen mittels Business Service Blueprinting Modeling.. In: Thomas, O. ; Nüttgens, M. (eds.): Dienstleistungsmodellierung: Interdisziplinäre Konzepte und Anwendungsszenarien - Proceedings der Dienstleistungsmodellierung 2010, Workshop im Rahmen der Modellierung 2010. vol. 2. Heidelberg, Germany : Physica, 2010. — 183 (31-10), pp. 41–67
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Lamla, Jörn:Zugänge zur virtuellen Konsumwelt. Abgrenzungsprobleme und Revisionsstufen der Ethnografie.. In: Heinzel, F. et al. (ed.): „Auf unsicherem Terrain“. Ethnographische Forschung im Kontext des Bildungs- und Sozialwesens. Wiesbaden : VS-Verlag, 2010, pp. 127–139
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Rudakova, L. ; Söllner, M. ; Leimeister, J. M.:Warum Hochschulrechenzentren andere IT-Service-Management Konzepte brauchen - eine konzeptionelle Analyse.. In: 40. Jahrestagung der Gesellschaft für Informatik. Leipzig, Germany, 2010. — 215 (60-10)
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Prinz, A. ; Menschner, M. ; Leimeister, J. M.:Integration verschiedener Sichten in der Dienstleistungsentwicklung.. In: Mensch & Computer - Interaktive Kulturen. Duisburg, Germany, 2010. — 190 (38-10)
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Menschner, P. ; Hartmann, M. ; Leimeister, J. M.:The nature of knowledge-intensive person-oriented services - challenges for leveraging service engineering potentials.. In: 2. International Symposium of Service Sciences (ISSS). Leipzig, Germany : Lecture Notes in Informatics (LNI), 2010. — 192 (40-10)
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Menschner, P. ; Leimeister, J. M.:Technology Use by Providers of Person-Oriented Services: Actual Usage and Acceptance Issues in Health Care.. In: 20. International RESER Conference (RESER) 2010. Gothenburg, Sweden, 2010. — 194 (42-10)
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Menschner, P. ; Leimeister, J. M.:Systematische Entwicklung mobiler und IT-gestützter Dienstleistungen für die Generation 50+.. In: Gatermann, I. ; Fleck, M. (eds.): Mit Dienstleistungen die Zukunft gestalten - Impulse aus Forschung und Praxis. Beiträge der 8. Dienstleistungstagung des BMBF. Frankfurt am Main, Germany : Campus Verlag, 2010. — 193 (41-10)
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Koene, P. ; Köbler, F. ; Menschner, P. ; Altmann, M. ; Prinz, A. ; Leimeister, J. M. ; Krcmar, H.:Participatory Requirements Analysis: Entwicklung innovativer NFC- und IT-basierter Care-Dienstleistungen für 50+.. In: 3. Deutscher AAL-Kongress 2010. vol. 3. Berlin, Germany, 2010. — 159 (7-10)
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Lemmerich, Florian ; Rohlfs, Matthias ; Atzmueller, Martin:Fast Discovery of Relevant Subgroup Patterns.. In: Proc. 23rd FLAIRS Conference, 2010
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Hartmann, M. ; Prinz, A. ; Leimeister, J. M.:Open Innovation im Healthcare - Systematische Entwicklung von Ideenwettbewerben am Beispiel von Patienten mit amyotropher Lateralsklerose.. In: 40. Jahrestagung der Gesellschaft für Informatik: Service Science – neue Perspektiven für die Informatik. Leipzig, Germany, 2010. — 185 (33-10)
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Lerch, Hana ; Krause, Beate ; Hotho, Andreas ; Roßnagel, Alexander ; Stumme, Gerd: Social Bookmarking-Systeme – die unerkannten Datensammler - Ungewollte personenbezogene Datenverabeitung?. In: MultiMedia und Recht vol. 7 (2010), pp. 454–458
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Lamla, Jörn: Ökonomien des Sozialen im Web 2.0. In: Lamla, J. ; Marotzki, W. (eds.) Zeitschrift für Qualitative Forschung (2010), Nr. 1, pp. 3–9
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Lamla, Jörn: Kultureller Kapitalismus im Web 2.0. Zur Analyse von Segmentations-, Intersektions- und Aushandlungsprozessen in den sozialen Welten des Internets. In: Zeitschrift für Qualitative Forschung (2010), Nr. 1, pp. 11–36
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Prinz, A. ; Menschner, P. ; Altmann, M. ; Leimeister, J. M. ; Koene, P. ; Köbler, F. ; Krcmar, H. ; Linke, P. ; et al.:Mobiles Ernährungsmanagement am Beispiel ALS-bedingter Mangelernährung.. In: 3. Deutscher AAL-Kongress 2010. Berlin, Germany, 2010. — 158 (6-10)
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Söllner, M. ; Leimeister, J. M.:Did they all get it wrong? Towards a better measurement model of trust.. In: Academy of Management Annual Meeting. Montréal, Canada, 2010. — 181 (29-10)
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Hoberg, S. ; Kniewel, R. ; Behrenbruch, K. ; Schmidt, L. ; Pirali, A. ; David, K.:Adaptierte Heuristische Evaluation einer neuartigen sozialen Software.. In: Automatisierungstechnik, V.-G. M.- und (ed.): Useware 2010: Grundlagen - Methoden - Technologien (Baden-Baden 2010), VDI-Berichte. Düsseldorf : VDI-Verlag, 2010, pp. 129–138
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In diesem Beitrag wird die Evaluation der Gebrauchstauglichkeit und Vernetzungswirkung der prototypisch umgesetzten mobilen sozialen Software Social Link mittels einer adaptierten Heuristischen Evaluation beschrieben. Social Link unterstützt seine Anwender dabei, Informationen über sich, den eigenen Standpunkt und das vorherrschende Wetter an Mitglieder einer Peer Group zu verschicken. Für die Evaluation wurden Nielsens Web-Heuristiken für die Anwendung auf mobile soziale Applikationen angepasst. Die Software wurde von sechs Evaluatoren bewertet und Optimierungsvorschläge für die Weiterentwicklung von Social Link generiert.
Mauro, C. ; Happle, T. ; Sunyaev, A. ; M.Leimeister, J. ; Krcmar, H.:From medical processes to workflows: modeling of clinical pathways with the unified modeling language.. In: 3. International Conference on Health Informatics (HealthInf) 2010. Valencia, Spain, 2010. — 161 (9-10)
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Blohm, I. ; Bretschneider, U. ; Huber, M. ; Möslein, K. ; Koch, M. ; Rieger, M. ; Glatz, F. ; Leimeister, J. M. ; et al.:IT als Enabler offener Innovationsprozesse.. In: Jacobsen, H. ; Schallock, B. (eds.): Innovationsstrategien jenseits traditionellen Managements, Tagungsband der Ersten Tagung des Förderschwerpunkts des BMBF : Fraunhofer IRB Verlag, 2010. — 249 (64-10)
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Mauro, C. ; Leimeister, J. M. ; Krcmar, H.:Service oriented device integration - An analysis of SOA design patterns.. In: Hawaii International Conference on System Sciences (HICSS) 2010. Kauai, USA, 2010. — 154 (2-10)
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Langer, P. ; Köbler, F. ; Berkovich, M. ; Weyde, F. ; Leimeister, J. M. ; Krcmar, H.:Vorgehensmodelle für die Entwicklung hybrider Produkte - Eine Vergleichsanalyse.. In: Multikonferenz Wirtschaftsinformatik (MKWI) 2010. Göttingen, Germany, 2010. — EXT30
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Hoffmann, H. ; Leimeister, J. M. ; Krcmar, H.:Prototyping komplexer Geschäftsanwendungen im Automobil.. In: Schumann, M. ; Kolbe, L. M. ; Breitner, M. H. (eds.): Multikonferenz Wirtschaftsinformatik (MKWI) 2010. Göttingen, Germany, 2010. — 165_b (13-10)
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Schmidt, L.: Mensch-Maschine-Ärger! Interview von Eva Tenzer. In: In: Psychologie Heute, Nr. 2, S. 66-70, In: Psychologie Heute, Nr. 2, S. 66-70. (2010)
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Je komplizierter technische Geräte werden, desto mehr Ärger können sie bei ihren Benutzern verursachen. Es gibt wohl kaum jemanden, der nicht schon einmal gern seinen PC aus dem Fenster geworfen oder eigenhändig zertrümmert hätte. Wenige, die nicht bei der Installation eines neuen DVD-Rekorders kurz vor der Kapitulation standen. Hilfe kommt nun verstärkt aus der psychologischen Forschung, die sich intensiv damit beschäftigt, wie Apparate anwenderfreundlich und klug gestaltet werden können.
Söllner, M. ; Leimeister, J. M.:15 years of measurement model misspecification in trust research? A theory based approach to solve this problem.. In: European Academy of Management Annual Conference. vol. 10. Rome, Italy, 2010. — 180 (28-10)
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Schmidt, L.: Mobilgeräte und Multi-Touch: Neue Interaktionsmöglichkeiten für Bediensysteme von Maschinen?. In: GMA-Fachausschuss zur Überarbeitung der Richtlinie VDI/VDE 3850 "Nutzergerechte Gestaltung von Bediensystemen für Maschinen", Vortrag, GMA-Fachausschuss zur Überarbeitung der Richtlinie VDI/VDE 3850 "Nutzergerechte Gestaltung von Bediensystemen für Maschinen", Vortrag.. Stuttgart (2010)
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Goswami, S. ; Köbler, F. ; Leimeister, J. M. ; Krcmar, H.:Using Online Social Networking to Enhance Social Connectedness and Social Support for the Elderly.. In: International Conference on Information Systems (ICIS). Saint Louis, MO, USA, 2010. — 213 (58-10)
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Mitzlaff, Folke ; Atzmueller, Martin ; Benz, Dominik ; Hotho, Andreas ; Stumme, Gerd:Community Assessment using Evidence Networks.. In: Proceedings of the Workshop on Mining Ubiquitous and Social Environments (MUSE2010). Barcelona, Spain, 2010
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Community mining is a prominent approach for identifying (user) communities in social and ubiquitous contexts. While there are a variety of methods for community mining and detection, the effective evaluation and validation of the mined communities is usually non-trivial. Often there is no evaluation data at hand in order to validate the discovered groups. This paper proposes evidence networks using implicit information for the evaluation of communities. The presented evaluation approach is based on the idea of reconstructing existing social structures for the assessment and evaluation of a given clustering. We analyze and compare the presented evidence networks using user data from the real-world social bookmarking application BibSonomy. The results indicate that the evidence networks reflect the relative rating of the explicit ones very well.
Kortler, S. ; Helms, B. ; Berkovich, M. ; Lindemann, U. ; Shea, K. ; Leimeister, J. M. ; Krcmar, H.:Using MDM-methods in order to improve managing of iterations in design processes.. In: 12. International Dependency and Structure Modelling Conference (DSM) 2010. Cambridge, UK, 2010. — 187 (35-10)
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Lamla, Jörn:Digitale Konsumwelten als politische Bildungsräume? Zur Typologisierung der Online-Praktiken von Verbrauchern.. In: Grell, P. ; Schelhowe, H. ; Marotzki, W. (eds.): Neue digitale Kultur- und Bildungsräume. Wiesbaden : VS-Verlag, 2010, pp. 145–167
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Berkovich, M. ; Leimeister, J. M. ; Krcmar, H.:Ein Bezugsrahmen für Requirements Engineering hybrider Produkte.. In: Multikonferenz Wirtschaftsinformatik (MKWI) 2010. Göttingen, Germany, 2010. — 166 (14-10)
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Köbler, F. ; Fähling, J. ; Krcmar, H. ; Leimeister, J. M.: IT Governance and Types of IT Decision Makers in German Hospitals - An empirical study among IT Decision Makers in German Hospitals. In: Business & Information Systems Engineering vol. 2 (2010), Nr. 6, pp. 359–370. — EXT6
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Lamla, Jörn:„Consumer Citizen“. Privatheit und Öffentlichkeit in der Verbraucherdemokratie.. In: Seubert, S. ; Niesen, P. (eds.): Die Grenzen des Privaten. Baden-Baden : Nomos, 2010, pp. 219–234
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Köbler, F. ; Fähling, J. ; Krcmar, H. ; Leimeister, J. M.: IT-Governance und IT-Entscheidertypen in deutschen Krankenhäusern. Eine empirische Untersuchung unter Krankenhaus IT-Leitern. In: Wirtschaftsinformatik vol. 52 (2010), Nr. 6, pp. 353–365. — 212 (57-10)
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Lamla, Jörn:Zonen der Ununterscheidbarkeit. Ökonomie und Anerkennung im digitalen Zeitalter.. In: Neckel, S. (ed.): Kapitalistischer Realismus. Von der Kunstaktion zur Gesellschaftskritik. Frankfurt/ New York : Campus, 2010, pp. 256–278
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Köbler, F. ; Vattai, A. ; Leimeister, J. M. ; Krcmar, H.:Evaluation des Produkt-Dienstleistungsangebots in der Medizintechnikbranche.. In: Wulff, V. ; Haake, J. ; Herrmann, T. ; Krcmar, H. ; Schlichter, J. ; Schwabe, G. ; Ziegler, J. (eds.): Schriften zu Kooperations- und Mediensysteme Band 24. Hybride Wertschöpfung in der Gesundheitsförderung. Innovation – Dienstleistung – IT. Lohmar, Germany : Josef EUL Verlag GmbH, 2010. — EXT2, pp. 199–212
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Benz, Dominik ; Hotho, Andreas ; Jäschke, Robert ; Krause, Beate ; Mitzlaff, Folke ; Schmitz, Christoph ; Stumme, Gerd: The social bookmark and publication management system BibSonomy. In: The VLDB Journal. Berlin / Heidelberg, Springer (2010)
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Social resource sharing systems are central elements of the Web 2.0 and use the same kind of lightweight knowledge representation, called folksonomy. Their large user communities and ever-growing networks of user-generated content have made them an attractive object of investigation for researchers from different disciplines like Social Network Analysis, Data Mining, Information Retrieval or Knowledge Discovery. In this paper, we summarize and extend our work on different aspects of this branch of Web 2.0 research, demonstrated and evaluated within our own social bookmark and publication sharing system BibSonomy, which is currently among the three most popular systems of its kind. We structure this presentation along the different interaction phases of a user with our system, coupling the relevant research questions of each phase with the corresponding implementation issues. This approach reveals in a systematic fashion important aspects and results of the broad bandwidth of folksonomy research like capturing of emergent semantics, spam detection, ranking algorithms, analogies to search engine log data, personalized tag recommendations and information extraction techniques. We conclude that when integrating a real-life application like BibSonomy into research, certain constraints have to be considered; but in general, the tight interplay between our scientific work and the running system has made BibSonomy a valuable platform for demonstrating and evaluating Web 2.0 research.
Roßnagel, A. ; Kleist, T. ; Scheuer, A. ; Mohrmann, C.:Wettbewerb beim Netzbetrieb - Voraussetzung für eine lebendige Rundfunkentwicklung, Schriftenreihe der Landesmedienanstalten. vol. 42 : Vistas, 2010
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Böhm, M. ; Nominacher, B. ; Fähling, J. ; Leimeister, J. M. ; Yetton, P. ; Krcmar, H.:IT Challenges in M&A Transactions – The IT Carve-Out View on Divestments.. In: International Conference on Information Systems (ICIS). St. Louis, MO, USA, 2010. — 207 (55-10)
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Atzmueller, Martin ; Roth-Berghofer, Thomas:Ready for the MACE? The Mining and Analysis Continuum of Explaining Uncovered ( Nr. RR-10-02) : Deutsches Forschungszentrum für Künstliche Intelligenz, 2010
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Köbler, F. ; Koene, P. ; Goswami, S. ; Leimeister, J. M. ; Krcmar, H.:NFriendConnector - Verbindung zwischen virtueller und realer sozialer Interaktion.. In: 5. Konferenz Mobile und Ubiquitäre Informationssysteme (MMS2010) im Rahmen der Multikonferenz Wirtschaftsinformatik (MKWI2010). vol. 5. Göttingen, Germany, 2010. — 169 (17-10)
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Klein, Niklas ; David, Klaus:Time Locality: A Novel Parameter for Quality of Context.. In: Proceedings of Seventh International Conference on Networked Sensing Systems, 2010
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Böhmann, T. ; Leimeister, J. M.:Integration von Produkt & Dienstleistung: Hybride Wertschöpfung. 1. ed.. Norderstedt : Books on Demand, 2010 — ISBN 978-3839144411
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Krcmar, H. ; Leimeister, J. M. ; Leimeister, S. ; Schermann, M. ; Wolf, P. ; Wittges, H.:5th Workshop on Information Systems and Services Sciences 2010.. In: Studien des Lehrstuhls für Wirtschaftsinformatik Technische Universität München, 2010
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Böhm, M. ; Sczudlek, A. ; Knebel, U. ; Leimeister, J. M. ; Krcmar, H.:Qualitätsmanagement bei hybriden Produkten: Ein Ansatz zur Messung der Leistungsqualität hybrider Produkte.. In: Leimeister, J. M. ; Krcmar, H. ; Halle, M. ; Möslein, K. (eds.): Hybride Wertschöpfung in der Gesundheitsförderung. Innovation - Dienstleistung - IT. Lohmar, Germany : Eul Verlag, 2010. — 208 (56-10), pp. 155–172
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Böhm, M. ; Leimeister, J. M. ; Krcmar, H.:Geschäftsmodelle für den Personal Health Manager.. In: Leimeister, J. M. ; Krcmar, H. ; Halle, M. ; Möslein, K. (eds.): HybrideWertschöpfung in der Gesundheitsförderung. Innovation – Dienstleistung – IT. Lohmar, Germany : Eul, 2010. — 171 (41-10), pp. 213–222
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Dünnebeil, S. ; Sunyaev, A. ; Mauro, C. ; Leimeister, J. M. ; Krcmar, H.:eGK-Mehrwertanwendung zur elektronischen Krankenhauseinweisung.. In: conhIT - Workshops von Arbeits- und Projektgruppen der Gesellschaft für Medizinische Informatik, Biometrie und Epidemiologie (GMDS) und des Berufsverbandes für Medizinische Informatik (BMVI). Berlin, Germany, 2010. — 200 (48-10)
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Roßnagel, A.:Elektronische Medien zwischen Exklusivität und Grundversorgung – Rechtliche Rahmenbedingungen, technische Möglichkeiten, wirtschaftliche Konzepte, Schriftenreihe des Instituts für Europäisches Medienrecht (EMR). vol. 39 : Nomos, 2010
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Flach, Alexander ; David, Klaus:Combining Radio Transmission with Filters for Pedestrian Safety: Experiments and Simulations.. In: 2010 IEEE 72nd Vehicular Technology Conference Fall (VTC-Fall). Ottawa, Canada : IEEE, 2010, pp. 1–5
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Improving the safety of vulnerable road users is an international demand because still thousands of pedestrians and cyclists are injured or killed in accidents with cars, trucks and busses. Car manufacturers and several research groups work on different solutions to avoid accidents with the help of sensor based systems. Moreover, research is done in radio communication based collision avoidance systems which uses exchanged information to distinguish between dangerous and non dangerous situations. In this paper we present various filters differing by the input information used to find dangerous situations implemented in a radio based collision avoidance system simulator. The results of the filters applied to a scenario are also presented. Furthermore, we analyse the influence of different conditional parameters to transmission delay times by taking further measurements for cellular networks to determine if cellular networks can be used as a communication technology in a collision avoidance system.
Köbler, F. ; Koene, P. ; Krcmar, H. ; Altmann, M. ; Leimeister, J. M.:LocaTag - An NFC-based system enhancing instant messaging tools with real-time user location.. In: 2. International Workshop on Near Field Communication (NFC) 2010. vol. 2. Monaco, Monaco, 2010. — 180 (28-10)
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Atzmueller, M. ; Hotho, A. (eds.):Proceedings of the 2010 Workshop on Mining Ubiquitous and Social Environments (MUSE 2010). Barcelona, Spain : ECML/PKDD 2010, 2010
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Krcmar, H. ; Leimeister, J. M. ; Leimeister, S. ; Schermann, M. ; Wolf, P. ; Wittges, H.:6th Workshop on Information Systems and Services Sciences 2010.. In: Studien des Lehrstuhls für Wirtschaftsinformatik Technische Universität München, 2010
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Dünnebeil, S. ; Sunyaev, A. ; Leimeister, J. M. ; Krcmar, H.:Strategies for Development and Adoption of EHR in German Ambulatory Care.. In: 4th International Conference on Pervasive Computing Technologies for Healthcare 2010. Munich, Germany, 2010. — EXT27, p. Paper 8887
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David, Klaus ; Dixit, Sudhir ; Jefferies, Nigel: 2020 Vision - The Wireless World Research Forum Looks to the Future. In: IEEE Vehicular Technology Magazine vol. 5 (2010), Nr. 3, pp. 22–29
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Based on the wireless world research forum (WWRF) vision of seven trillion wireless devices serving seven billion people by 2020, we identified several key user requirements and a scenario to motivate research on many different technical areas. If addressed successfully by the research community and the industry, innovation in new air interfaces (for high bit rate and capacity and low latency); network architectures (like mobile cloud, mesh networks, or cognitive systems); solutions to privacy, security, and trust; and devices that do not need to be recharged for long periods would unleash an era of the wireless world where: each and every person will be empowered by wireless services. Wireless device(s) will become our interface to the digital world. We will live an ambient life style, such that: 1) our mobile device will become the key enabler to interact with smart environments and users; and 2) our mobile device will be a trusted personal assistant that will be indispensible. We will enjoy and benefit from an untethered-but-connected user experience and ubiquitous service delivery with a consistent user experience.
Esch, S. ; Leimeister, J. M. ; Krcmar, H.:Automatisierungsentscheidungen bei der Gestaltung von Dienstleistungselementen hybrider Produkte.. In: Leimeister, J. M. ; Krcmar, H. ; Halle, M. ; Möslein, K. (eds.): Hybride Wertschöpfung in der Gesundheitsförderung. Ergebnisse des Verbundprojekts "Systematisches Design zur Integration von Produkt und Dienstleistung in der Gesundheitswirtschaft" (SPRINT). Köln, Germany : Josef EUL Verlag, 2010. — JML_EXT14, pp. 61–79
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Esch, S. ; Köbler, F. ; Knebel, U. ; Leimeister, J. M. ; Krcmar, H.:Der Personal Health Manager - ein IT-gestütztes Bewegungsprogramm.. In: Fähnrich, K. ; Franczyk, B. (eds.): Informatik 2010: Service Science - Neue Perspektiven für die Informatik. vol. 1. Leipzig, Germany : Gesellschaft für Informatik, 2010. — 206 (54-10), pp. 15–20
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Köbler, F. ; Leimeister, J. M. ; Krcmar, H.:Erste Ansätze zur Systematisierung und Standardisierung hybrider Wertschöpfung.. In: Wulff, V. ; Haake, J. ; Herrmann, T. ; Krcmar, H. ; Schlichter, J. ; Schwabe, G. ; Ziegler, J. (eds.): Schriften zu Kooperations- und Mediensysteme Band 24. Hybride Wertschöpfung in der Gesundheitsförderung. Innovation – Dienstleistung – IT. Lohmar, Germany : Josef EUL Verlag GmbH, 2010. — EXT3, pp. 81–90
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Comes, Diana ; Baraki, Harun ; Reichle, Roland ; Zapf, Michael ; Geihs, Kurt:Heuristic Approaches for QoS-based Service Selection.. In: 8th International Conference on Service Oriented Computing (ICSOC). San Francisco, USA : Springer, 2010
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Cramar, L. ; Hegenberg, J. ; Schmidt, L.: User Involvement in Requirements Elicitation on the Example of a System with Autonomous Mobile Robots for Inspection of Gas Pipes. In: Human Centred Automation : Human Factors and Ergonomics Society Europe Chapter Annual Meeting (Berlin 2010), Posterpräsentation, Human Centred Automation : Human Factors and Ergonomics Society Europe Chapter Annual Meeting (Berlin 2010), Posterpräsentation. (2010)
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High technical know-how is needed to automate a manually conducted task. During the system design process the main focus is usually put on the engineering part, but the involvement of users, their knowledge, workflow, and mental models are rarely considered. The resulting technical system is fully functional, but insufficiently accepted by the users. As an example of user involvement in requirements analysis, we present a conceptual design of a system with autonomous mobile robots for inspection of gas pipes in large technical plants. In addition to user observation and task analysis, a questionnaire for elicitation of user requirements has been developed. The questionnaire inquires the operators’ knowledge and flow of work during the inspection planning and conducting, the impact of environmental parameters, subjective difficulties, and anticipation of advantages of using the system. The resulting implications for the development and design of human-computer-interface as well as human-robot-interaction are introduced.
Leimeister, J. M. ; Wagner, D. ; Bendig, A. ; Hoppe, U. ; Möslein, K. ; Lemken, T. ; Stein, V.:Thesen zum Management offener Innovationsprozesse.. In: 1. BMBF Förderschwerpunkttagung Innovationsstrategien jenseits traditionellen Managements. Berlin, Germany, 2010. — 157 (5-10)
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Riedl, C. ; Blohm, I. ; Leimeister, J. M. ; Krcmar, H.:Rating Scales for Collective Intelligence in Innovation Communities: Why Quick and Easy Decision Making Does Not Get it Right.. In: International Conference on Information Systems (ICIS). St. Louis, MO, USA, 2010. — 203 (51-10)
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Riedl, C. ; Leimeister, J. M. ; Krcmar, H.:Service innovation for electronic services.. In: Ahson, S. (ed.): Service Delivery Platforms: Developing and Deploying Converged Multimedia Services : CRC Press, 2010. — 173 (21-10)
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Riedl, C. ; Leimeister, J. M. ; Krcmar, H.:Why e-Service Development is Different: A Literature Review.. In: e-Service Journal (e-SJ), 2010. — 204 (52-10)
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Riedl, C. ; Wagner, S. ; Leimeister, J. M. ; Krcmar, H.:Exploring Large Collections of Ideas in Collaborative Settings through Visualization.. In: 20. Annual Workshop on Information Technologies and Systems (WITS) 2010. St. Louis, MO, USA, 2010. — 205 (53-10)
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Comes, Diana ; Zapf, Michael ; Geihs, Kurt:QoS-based Self-Management for Business Processes.. In: Proceedings of the SAKS 2010 workshop : Electronic Communications of the EASST, 2010. — ISSN 1863-2122
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Hotho, Andreas ; Benz, Dominik ; Eisterlehner, Folke ; Jäschke, Robert ; Krause, Beate ; Schmitz, Christoph ; Stumme, Gerd: Publikationsmanagement mit BibSonomy -- ein Social-Bookmarking-System für Wissenschaftler. In: HMD -- Praxis der Wirtschaftsinformatik vol. Heft 271 (2010), pp. 47–58
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Kooperative Verschlagwortungs- bzw. Social-Bookmarking-Systeme wie Delicious, Mister Wong oder auch unser eigenes System BibSonomy erfreuen sich immer größerer Beliebtheit und bilden einen zentralen Bestandteil des heutigen Web 2.0. In solchen Systemen erstellen Nutzer leichtgewichtige Begriffssysteme, sogenannte Folksonomies, die die Nutzerdaten strukturieren. Die einfache Bedienbarkeit, die Allgegenwärtigkeit, die ständige Verfügbarkeit, aber auch die Möglichkeit, Gleichgesinnte spontan in solchen Systemen zu entdecken oder sie schlicht als Informationsquelle zu nutzen, sind Gründe für ihren gegenwärtigen Erfolg. Der Artikel führt den Begriff Social Bookmarking ein und diskutiert zentrale Elemente (wie Browsing und Suche) am Beispiel von BibSonomy anhand typischer Arbeitsabläufe eines Wissenschaftlers. Wir beschreiben die Architektur von BibSonomy sowie Wege der Integration und Vernetzung von BibSonomy mit Content-Management-Systemen und Webauftritten. Der Artikel schließt mit Querbezügen zu aktuellen Forschungsfragen im Bereich Social Bookmarking.
Köbler, F. ; Fähling, J. ; Vattai, A. ; Leimeister, J. M. ; Krcmar, H.:Vom Produkt zur IT-gestützten integrierten Lösung – ein Fallbeispiel.. In: Wulff, V. ; Haake, J. ; Herrmann, T. ; Krcmar, H. ; Schlicher, J. ; Schwabe, G. ; Ziegler, J. (eds.): Schriften zu Kooperations- und Mediensysteme Band 24. Hybride Wertschöpfung in der Gesundheitsförderung. Innovation – Dienstleistung – IT. Lohmar, Germany : Josef EUL Verlag GmbH, 2010. — EXT4, pp. 45–59
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Atzmueller, M. ; Benz, D. ; Hotho, A. ; Stumme, G. (eds.):Proceedings of the LWA 2010 - Lernen, Wissen, Adaptivität, Technical report (KIS), 2010-10 : Department of Electrical Engineering/Computer Science, Kassel University, 2010
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Atzmueller, Martin ; Roth-Berghofer, Thomas:The Mining and Analysis Continuum of Explaining Uncovered.. In: Proc. 30th SGAI International Conference on Artificial Intelligence (AI-2010), 2010
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Atzmueller, Martin ; Roth-Berghofer, Thomas:Towards Explanation-Aware Social Software: Applying the Mining and Analysis Continuum of Explaining.. In: Proc. Workshop on Explanation-aware Computing ExaCt 2010 @ ECAI 2010, 2010
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Atzmueller, Martin ; Beer, Stephanie:Validation of Mixed-Structured Data Using Pattern Mining and Information Extraction.. In: Proc. 55th IWK, International Workshop on Design, Evaluation and Refinement of Intelligent Systems (DERIS) : University of Ilmenau, 2010
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Sigg, Stephan ; Haseloff, Sandra ; David, Klaus: An Alignment Approach for Context Prediction Tasks in UbiComp Environments. In: IEEE Pervasive Computing vol. 9. Los Alamitos, CA, USA, IEEE Computer Society (2010), Nr. 4, pp. 90–97
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The authors detail the alignment prediction approach-a time-series-estimation technique applicable to both numeric and nonnumeric data-and compare it to four other prediction approaches to determine context-prediction accuracy in ubiquitous computing environments.
Leimeister, J. M. ; Krcmar, H. ; Hoffmann, H. ; Schermann, M.:Automotive Services.. In: Leimeister, J. M. ; Krcmar, H. ; Hoffmann, H. ; Schermann, M. (eds.): . Norderstedt, Germany : BoD Verlag, ISBN: 978-3839127087, 2010. — 171 (41-10)
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Leimeister, J. M. ; Krcmar, H. ; Halle, M. ; Möslein, K.:Hybride Wertschöpfung in der Gesundheitsförderung. Innovation - Dienstleistung - IT. Lohmar, Germany : Eul-Verlag, ISBN: 978-3899369144, 2010. — 171 (41-10)
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Fähling, J. ; Böhm, M. ; Leimeister, J. M. ; Yetton, P. ; Krcmar, H.:Managing the IT carve-out in a SBU divestment.. In: European Conference on Information Systems (ECIS). vol. 18. Pretoria, South Africa, 2010. — 177 (25-10)
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Blohm, I. ; Bretschneider, U. ; Leimeister, J. M. ; Krcmar, H.:Does collaboration among participants lead to better ideas in IT-based idea competitions - An empirical investigation.. In: Hawai’i International Conference on System Sciences (HICSS) 2010. Kauai, USA, 2010. — 153 (1-10)
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Roßnagel, A. ; Jandt, S.:Datenschutzfragen eines Energieinformationsgesetzes. vol. 88, : Alcatel Lucent Stiftung für Kommunikationsforschung, 2010
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Hoffmann, H. ; Leimeister, J.M. ; Krcmar, H.:Kundenintegration bei der Erstellung bedarfsgerechter automotive Software.. In: Heilmann, H. (ed.): Humane Nutzung der Informationstechnologie. Heidelberg, Germany : Akademische Verlagsgesellschaft AKA GmbH, 2010. — 174 (22-10)
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Roßnagel, A. ; Hornung, G.:Der „elektronische Personalausweis“ in Deutschland: Gesetzgebungsverfahren, Einflussfaktoren und Pfade. Kassel, 2010
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Fähling, J. ; Köbler, F. ; Leimeister, J. M. ; Krcmar, H.:Wahrgenommener Wertbeitrag von Informationstechnologie in deutschen Krankenhäusern. Eine empirische Untersuchung unter kaufmännischen, medizinischen und IT-Leitern. Norderstedt : Books on Demand, ISBN: 978-3842334151, 2010
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Klein, Niklas ; David, Klaus:Basic Approach of Timing in Context Aware Architectures verified by concrete Advantages.. In: Proceedings of The 10th Annual International Symposium on Applications and the Internet, 2010
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Fähling, J. ; Köbler, F. ; Leimeister, J. M. ; Krcmar, H.:From Products to Product-Service Systems: IT Driven Transformation of a Medical Equipment Manufacturer to a Customer-Centric Solution Provider.. In: International Conference on Information Systems (ICIS). Saint Louis, MO, USA, 2010. — 214 (59-10)
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Köbler, F. ; Riedl, C. ; Vetter, C. ; Leimeister, J. M. ; Krcmar, H.:Social Connectedness on Facebook - An explorative study on status message usage.. In: 16. Americas Conference on Information Systems (AMCIS) 2010. Lima, Peru, 2010. — 202 (50-10)
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Behrenbruch, K. ; Kniewel, R. ; Hoberg, S. ; Schmidt, L.: Evaluationsmethoden im Kontext iterativer Gestaltungsmodelle für adaptive und auf Kooperation ausgerichtete Anwendungen. In: Mensch & Computer 2010 : Workshop Ëvaluation Adaptiver Systeme (EASYS)", Vortrag, Mensch & Computer 2010 : Workshop Ëvaluation Adaptiver Systeme (EASYS)", Vortrag.. Duisburg (2010)
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Es existieren viele Methoden für die Evaluation von softwarebasierten Produkten. Die Auswahl der passenden Methoden wird insbesondere dann zur Herausforderung, wenn innovative Anwendungen mit neuartigen Anforderungen an die Evaluation vorliegen. Zudem kann es notwendig werden, etablierte Metho-den anzupassen. Dieser Beitrag diskutiert bezogen auf adaptive und auf Kooperati-on ausgerichtete Systeme mögliche Vorgehensweisen in diesem Bereich. Dabei werden iterative Vorgehensweisen aus den Bereichen Software Engineering und Usability Engineering in einem gemeinsamen Entwurf für ein integratives Ent-wicklungsmodell zusammengeführt. Zudem werden Evaluationsbeispiele aus der laufenden Forschungsarbeit im Projekt VENUS dargestellt.

2009[ to top ]

Köbler, F. ; Fähling, J. ; Vattai, A. ; Leimeister, J. M.:Analysis of value creation by product-service-systems in the German medical engineering industry.. In: Alt, R. ; Fähnrich, K. P. ; Franczyk, B. (eds.): 1. International Symposium of Service Sciences 2009 (ISSS) 2009. Berlin, Germany, 2009. — 139 (23-09)
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Esch, S. ; Knebel, U. ; Leimeister, J. M. ; Krcmar, H.:Entwurf, Implementierung und Test einer IT-Architektur für einen mobilen Gesundheitscoach - Das Beispiel Personal Health Manager.. In: Informatik 2009 - Im Focus das Leben. Lübeck, Germany, 2009. — 147 (31-09)
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Schmid, Markus ; of Kassel, F. 16: E. U. (ed.):Autonomes Performance-Management in dienstorientierten Architekturen. Wilhelmshöher Allee 73, 34121 Kassel, Germany, University of Kassel, Fachbereich 16: Elektrotechnik/Informatik, Distributed Systems Group, PhD dissertation, 2009
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Die Bedeutung des Dienstgüte-Managements (SLM) im Bereich von Unternehmensanwendungen steigt mit der zunehmenden Kritikalität von IT-gestützten Prozessen für den Erfolg einzelner Unternehmen. Traditionell werden zur Implementierung eines wirksamen SLMs Monitoringprozesse in hierarchischen Managementumgebungen etabliert, die einen Administrator bei der notwendigen Rekonfiguration von Systemen unterstützen. Auf aktuelle, hochdynamische Softwarearchitekturen sind diese hierarchischen Ansätze jedoch nur sehr eingeschränkt anwendbar. Ein Beispiel dafür sind dienstorientierte Architekturen (SOA), bei denen die Geschäftsfunktionalität durch das Zusammenspiel einzelner, voneinander unabhängiger Dienste auf Basis deskriptiver Workflow-Beschreibungen modelliert wird. Dadurch ergibt sich eine hohe Laufzeitdynamik der gesamten Architektur. Für das SLM ist insbesondere die dezentrale Struktur einer SOA mit unterschiedlichen administrativen Zuständigkeiten für einzelne Teilsysteme problematisch, da regelnde Eingriffe zum einen durch die Kapselung der Implementierung einzelner Dienste und zum anderen durch das Fehlen einer zentralen Kontrollinstanz nur sehr eingeschränkt möglich sind. Die vorliegende Arbeit definiert die Architektur eines SLM-Systems für SOA-Umgebungen, in dem autonome Management-Komponenten kooperieren, um übergeordnete Dienstgüteziele zu erfüllen: Mithilfe von Selbst-Management-Technologien wird zunächst eine Automatisierung des Dienstgüte-Managements auf Ebene einzelner Dienste erreicht. Die autonomen Management-Komponenten dieser Dienste können dann mithilfe von Selbstorganisationsmechanismen übergreifende Ziele zur Optimierung von Dienstgüteverhalten und Ressourcennutzung verfolgen. Für das SLM auf Ebene von SOA Workflows müssen temporär dienstübergreifende Kooperationen zur Erfüllung von Dienstgüteanforderungen etabliert werden, die sich damit auch über mehrere administrative Domänen erstrecken können. Eine solche zeitlich begrenzte Kooperation autonomer Teilsysteme kann sinnvoll nur dezentral erfolgen, da die jeweiligen Kooperationspartner im Vorfeld nicht bekannt sind und – je nach Lebensdauer einzelner Workflows – zur Laufzeit beteiligte Komponenten ausgetauscht werden können. In der Arbeit wird ein Verfahren zur Koordination autonomer Management-Komponenten mit dem Ziel der Optimierung von Antwortzeiten auf Workflow-Ebene entwickelt: Management-Komponenten können durch Übertragung von Antwortzeitanteilen untereinander ihre individuellen Ziele straffen oder lockern, ohne dass das Gesamtantwortzeitziel dadurch verändert wird. Die Übertragung von Antwortzeitanteilen wird mithilfe eines Auktionsverfahrens realisiert. Technische Grundlage der Kooperation bildet ein Gruppenkommunikationsmechanismus. Weiterhin werden in Bezug auf die Nutzung geteilter, virtualisierter Ressourcen konkurrierende Dienste entsprechend geschäftlicher Ziele priorisiert. Im Rahmen der praktischen Umsetzung wird die Realisierung zentraler Architekturelemente und der entwickelten Verfahren zur Selbstorganisation beispielhaft für das SLM konkreter Komponenten vorgestellt. Zur Untersuchung der Management-Kooperation in größeren Szenarien wird ein hybrider Simulationsansatz verwendet. Im Rahmen der Evaluation werden Untersuchungen zur Skalierbarkeit des Ansatzes durchgeführt. Schwerpunkt ist hierbei die Betrachtung eines Systems aus kooperierenden Management-Komponenten, insbesondere im Hinblick auf den Kommunikationsaufwand. Die Evaluation zeigt, dass ein dienstübergreifendes, autonomes Performance-Management in SOA-Umgebungen möglich ist. Die Ergebnisse legen nahe, dass der entwickelte Ansatz auch in großen Umgebungen erfolgreich angewendet werden kann.
Köbler, F. ; Fähling, J. ; Leimeister, J. M. ; Krcmar, H.:How German hospitals govern IT - An empirical study.. In: European Conference on Information Systems (ECIS). Verona, Italy, 2009. — 132 (16-09)
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Berkovich, M. ; Leimeister, J. M. ; Krcmar, H.:Suitability of product development methods for hybrid products as bundles of classic products, software and service elements.. In: ASME 2009 - International Design Engineering Technical Conferences & Computers and Information in Engineering Conference IDETC/CIE. San Diego, USA, 2009. — 145 (29-09)
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Bieber, C. ; Eifert, M. ; Groß, T. ; Lamla, J. (eds.):Soziale Netze in der digitalen Welt. Das Internet zwischen egalitärer Teilhabe und ökonomischer Macht. Frankfurt/ New York : Campus, 2009
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Mauro, C. ; Sunyaev, A. ; Dünnebeil, S. ; Leimeister, J. M. ; Krcmar, H.:Mobile Anwendungen im Kontext des Medizinproduktegesetzes.. In: Mobiles Computing in der Medizin - 9. Workshop der GI- und GMDS-Arbeitsgruppe Mobile Informationstechnologie in der Medizin. Lübeck, Germany, 2009. — EXT19, pp. 1–13
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Siemon, A. ; Wegener, R. ; Bader, F. ; Hieber, T. ; Schmid, U.:Video Games can Improve Performance in Sports - An Empirical Study with WiiTM Sports Bowling.. In: Wallhoff, F. ; Rigol, G. (eds.): Proceedings of the KI Workshop on Human-Machine-Interaction. vol. 32. Paderborn, Germany, 2009
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Ronagel, Alexander ; Schmidt, Andreas U. ; Wilke, Daniel ; Roßnagel, A. ; Schmidt, A. U. ; Wilke, D. (eds.):Rechtssichere Transformation signierter Dokumente - Anforderung, Konzepte und Umsetzung, 2009
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Fähling, Jens ; Köbler, Felix ; Leimeister, Jan Marco ; Krcmar, Helmut:Wahrgenommener Wert von IT in Krankenhäusern - Eine empirische Studie.. In: Proceedings of Wirtschaftsinformatik. vol. 9. Wien, Austria, 2009. — 119 (3-09)
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Berkovich, M. ; Leimeister, J. M. ; Krcmar, H.:An empirical exploration of requirements engineering for hybrid products.. In: European Conference on Information Systems (ECIS). Verona, Italy, 2009. — 134b (18-09)
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Roßnagel, A.:Digitale Rechteverwaltung - Eine gelungen Allianz von Recht und Technik?, Schriftenreihe des Instituts für Europäisches Medienrecht (EMR). vol. 34 : Nomos, 2009
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Mauro, C. ; Sunyaev, A. ; Dünnebeil, S. ; Leimeister, J. M. ; Krcmar, H.:Medizinische Software im Kontext des Medizinproduktegesetzes.. In: Informatik 2009 - Im Focus das Leben. Lübeck, Germany : GI - Gesellschaft für Informatik, GI Lecture Notes, 2009. — 146 (30-09)
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Lamla, Jörn ; Witterhold, Katharina: Click-Work: eine Form post-sozialer Verdinglichung. Fallstudie zu den Dispositionen unmotivierter Internetnutzung. In: Sozialwissenschaften und Berufspraxis vol. 32 (2009), Nr. 2, pp. 240–249
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Köbler, F. ; Fähling, J. ; Vattai, A. ; Leimeister, J. M. ; Krcmar, H.:Analysis of value creation through Product-Service-Systems in the German medical engineering industry.. In: Alt, R. ; Fähnrich, K. P. ; Franczyk, B. (eds.): 1. International Symposiumon Services Science (ISSS) 2009. vol. 1. Leipzig, Germany : Logos, 2009, pp. 257–269
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Schmidt, L.: Blickbewegungsanalyse zur software-ergonomischen Evaluation. In: i-com - Zeitschrift für interaktive und kooperative Medien vol. 8 (2009), Nr. 1, pp. 75–80
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Zur Bewertung der Gebrauchstauglichkeit von Mensch-Maschine-Schnittstellen bieten sich zahlreiche Methoden an, deren Ergebnisse als konstruktive Basis für die benutzungsbezogene Verbesserung herangezogen werden können. In diesem Beitrag wird die Methode der Blickbewegungsanalyse mit ihren zentralen Parametern als software-ergonomisches Evaluationsverfahren vorgestellt und beispielhaft für die Untersuchung und Bewertung einer webbasierten Buchungsoberfläche für Flugtickets verwendet. Zusätzlich zu Benutzerleistungsdaten (wie Ausführungszeiten und Fehler) stehen damit weitere verhaltensbeschreibende objektive Daten zur Verfügung, die durch in Benutzerbefragungen erhobene, subjektive software-ergonomische Bewertungen ergänzt werden. Durch diese Methodenkombination sollte auch der Frage nachgegangen werden, ob sich die subjektiven und objektiven Daten sinnvoll gegenseitig ergänzen, so dass im Ergebnis besser auf Benutzbarkeitsdefizite geschlossen werden kann. An der empirischen Untersuchung des Fallbeispiels nahmen 20 Probanden teil, die jeweils drei repräsentative Ticket-Buchungsaufgaben lösen mussten. Die Auswertung der Blickbewegungs- und Leistungsdaten sowie der verwendeten Fragebögen lieferte trotz des hohen Erprobungsgrades der Buchungsschnittstelle und ihrer Vorgängerversionen insgesamt zahlreiche Hinweise, die im Sinne einer formativen Evaluation für die Überarbeitung der Buchungsoberfläche genutzt werden konnten. Die Analyse identifizierte teilweise übereinstimmende Problembereiche, ein Teil der Defizite konnte jedoch nur anhand der Blickbewegungsdaten aufgedeckt werden.
Schmidt, L. ; Luczak, H.:Gestaltung von Arbeitssystemen nach ergonomischen und gesundheitsförderlichen Prinzipien.. In: Bullinger, H.-J. ; Spath, D. ; Warnecke, H.-J. ; Westkämper, E. (eds.): Handbuch Unternehmensorganisation - Strategien, Planung, Umsetzung. Berlin : Springer, 2009, pp. 478–513
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Für ein Verstehen des komplexen Themas "Gesundheit" ist zunächst eine Analyse der Rahmenbedingungen und Einflussgrößen erforderlich. Ergonomische Gestaltungsfelder müssen erkannt und gesundheitsförderliche Prinzipien verstanden werden, bevor Methoden zur gesundheitsförderlichen Arbeitsgestaltung angewendet und im Unternehmen organisatorisch verankert werden können. Nicht zuletzt hat Gesundheit einen, wenn auch häufig nicht entsprechend akzeptierten, hohen Stellenwert für die Wirtschaftlichkeit des Unternehmens. Gesundheitsförderung wird so zum "wertschöpfenden" Prozess und zur Querschnittsaufgabe für alle betrieblichen Akteure. Wesentliche Rahmenbedingungen und Entwicklungstendenzen sind: (1) Rechtliche Rahmenbedingungen des Arbeits- und Gesundheitsschutzes und Regelungen der Unfallversicherungsträger mit rechtlich bindendem Charakter, (2) personenbezogene Entwicklungstendenzen wie höhere Qualifikation, höherer Stellenwert persönlicher Gesundheit, steigendes mittleres Alter der Erwerbstätigen u.a., (3) Entwicklung von Krankheitsarten und des Umfangs krankheitsbedingter Ausfälle, (4) Organisatorische Entwicklungen wie Dezentralisierung von Verantwortung, Flexibilisierung von Arbeitszeiten, Veränderungen von Aufgabeninhalten und -strukturen etc. sowie (5) Technische Entwicklungen, wie z.B. die zunehmende Anzahl von Bildschirmarbeitsplätzen oder die Integration von Automatisierungstechnologie.
Dünnebeil, S. ; Mauro, C. ; Sunyaev, A. ; Leimeister, J. M. ; Krcmar, H.:Integration of patient health portals into the German healthcare telematics infrastructure.. In: 15. Americas Conference on Information Systems (AMCIS) 2009. San Francisco, USA, 2009. — 128 (12-09)
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Leimeister, J. M. ; Berkovich, M.:Breitbandkommunikation.. In: Becker, J. ; Gronau, N. ; Kurbel, K. ; Sinz, E. ; Suhl, L. (eds.): Online-Lexikon der Wirtschaftsinformatik : Oldenbourg, 2009. — 165 (41-09)
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Leimeister, S. ; Leimeister, J. M. ; Knebel, U. ; Krcmar, H.: A cross-national comparison of perceived strategic importance of RFID for CIOs in Germany and Italy. In: International Journal of Information Management (2009), Nr. 29, pp. 37–47
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Leimeister, J. M. ; Krcmar, H.:Gedruckte Polymer-RFID-Transponder: Erste Erfahrungen und Erkenntnisse aus dem Forschungsprojekt PRISMA. Lohmar, Germany : Eul-Verlag, ISBN: 978-3899367621, 2009. — 126 (10-09)
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Lanzinner, S. ; Leimeister, J. M. ; Krcmar, H.: Value Mapping - Entwicklung eines Ansatz zur wertorientierten Steuerung von IT-Landschaften. München, Germany, Lehrstuhl für Wirtschaftsinformatik, Technische Universität München (2009), Nr. 35
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Lanzinner, S. ; Leimeister, J. M. ; Krcmar, H.:Value Mapping - Wertorientierte Steuerung von IT-Landschaften.. In: HMD - Praxis der Wirtschaftsinformatik. vol. 45. München, Germany : dpunkt, 2009. — 157 (36-09), pp. 34–41
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Krcmar, H. ; Leimeister, J. M. ; Wolf, P. ; Wittges, H.:3rd Workshop on Information Systems and Services Sciences 2009.. In: Studien des Lehrstuhls für Wirtschaftsinformatik Technische Universität München, 2009
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Kusber, Rico ; David, Klaus ; Brgulja, Nermin:Parameter Selection for Autonomic Deployment Decision Making.. In: 2009 IEEE Globecom Workshops. Honolulu, Hawaii : IEEE, 2009, pp. 1–6
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Today's computing networks are built to have a very high degree of heterogeneity, complexity, and interrelation. To be able to interact efficiently with those networks, scientists and computing system developers equip soft- and hardware with the ability to solve subtasks in an autonomic fashion. Especially with regard to easily accessible, content-rich, and increasingly pervasive networks, the question arises how best to select among multiple alternatives to deploy services or to obtain data in an efficient and preferably autonomic way. In this paper we address this question and present a deployment decision making (DDM) system accordingly. In particular, we concentrate on the performance-optimizing effects of selecting parameters and parameter subsets for the decision making process. These effects are deduced analytically and illustrated by an experimental evaluation.
Cheng, Betty H. C. ; de Lemos, Rogério ; Giese, Holger ; Inverardi, Paola ; Magee, Jeff ; Andersson, Jesper ; Becker, Basil ; Bencomo, Nelly ; et al.:Software Engineering for Self-Adaptive Systems: A Research Roadmap.. In: Cheng, B. H. C. ; de Lemos, R. ; Giese, H. ; Inverardi, P. ; Magee, J. (eds.): Software Engineering for Self-Adaptive Systems, Lecture Notes in Computer Science. vol. 5525 : Springer, 2009 — ISBN 978-3-642-02160-2, pp. 1–26
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Mauro, C. ; Sunyaev, A. ; Leimeister, J. M. ; Krcmar, H.:Serviceorientierte Integration medizinischer Geräte - Eine State-of-the-Art-Analyse.. In: 9. Internationale Tagung Wirtschaftsinformatik (WI2009). Wien, Austria, 2009. — 159 (38-09)
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Köbler, F. ; Tremaine, M. ; Leimeister, J. M. ; Krcmar, H.:Non-optimized temporal structures as a failure factor in virtual teams.. In: Proceedings of Wirtschaftsinformatik. Wien, Austria, 2009. — 118 (2-09)
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Knebel, U. ; Esch, S. ; Pressler, A. ; Leimeister, J. M. ; Krcmar, H.:Online, Set, Go - Design and empirical test of an IT-based physical activity intervention.. In: European Conference on Information Systems (ECIS). Verona, Italy, 2009. — EXT22
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Roßnagel, A. ; Laue, P. ; Peters, J. (eds.):Sichere und verbindliche Delegation von Aufgaben an IT-Assistenzsysteme – Sicherheit und Rechtsverbindlichkeit am Beispiel E-Government und E-Tourismus : Gabler, 2009
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Domhardt, M. ; Schmidt, L.:Brain-Computer-Interface: Von der Spielesteuerung zur Mensch-Computer-Interaktion?. In: Gesellschaft für Arbeitswissenschaft e. V. (ed.): Arbeit, Beschäftigungsfähigkeit und Produktivität im 21. Jahrhundert: 55. Kongress der Gesellschaft für Arbeitswissenschaft (Dortmund 2009). Dortmund : GfA-Press, 2009, pp. 105–108
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Neuartige Spielesteuerungen, die auf dem Prinzip eines Brain-Computer Interface basieren, können möglicherweise auch für andere Computeranwendungen sinnvoll genutzt werden. Der Beitrag stellt ein solches Eingabegerät und die Ergebnisse eines ersten Usabilitytests vor.
Fähling, J. ; Köbler, F. ; Leimeister, J. M. ; Krcmar, H.:Einsatz von IT für neue und optimierte medizinische Abläufe steht im großen Zusammenhang mit der Wahrnehmung des Wertbeitrags in deutschen Krankenhäusern.. In: 54. Jahrestagung der Deutschen Gesellschaft für Medizinische Informatik, Biometrie und Epidemiologie (GMDS). Essen, Germany, 2009. — JML_EXT16
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Riedl, C. ; Böhmann, T. ; Leimeister, J. M. ; Krcmar, H.:A framework for analysing service ecosystem capabilities to innovate.. In: European Conference on Information Systems (ECIS). Verona, Italy, 2009. — 133_b (17-09)
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Fähling, J. ; Köbler, F. ; Leimeister, J. M. ; Krcmar, H.:Einsatz von IT für neue und optimierte medizinische Abläufe und Wahrnehmung des IT-Wertbeitrags in deutschen Krankenhäusern.. In: Proceedings of 54. Jahrestagung der Deutschen Gesellschaft für Medizinische Informatik, Biometrie und Epidemiologie (GMDS). Essen, Germany, 2009. — 148 (31-09)
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Blohm, I. ; Bretschneider, U. ; Huber, J. M. ; Leimeister, J. M. ; Krcmar, H.:Collaborative Filtering in Ideenwettbewerben - Evaluation zweier Skalen zur Teilnehmer-Bewertung in Ideenwettbewerben.. In: Engelien, M. ; Homann, J. (eds.): GeNeMe 2009 - Gemeinschaften in neuen Medien: Virtual Enterprises, Communities & Social Networks. Dresden, Germany : Joseph Eul Verlag, 2009. — 141 (25-09), pp. 365–378
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Prinz, A. ; Menschner, P. ; Leimeister, J. M.:NFC-basiertes Ernährungsmanagement für ältere, pflegebedürftige Menschen.. In: Informatik 2009 - Im Focus das Leben. Lübeck, Germany : GI - Gesellschaft für Informatik, GI Lecture Notes in Informatics, 2009. — 148 (32-09)
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Brgulja, Nermin ; Kusber, Rico ; David, Klaus ; Baumgarten, Matthias:Measuring the Probability of Correctness of Contextual Information in Context Aware Systems.. In: 8th IEEE International Conference on Dependable, Autonomic and Secure Computing, DASC ’09. Chengdu, China : IEEE, 2009, pp. 246–253
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Context-awareness refers to computing systems that are able to sense and to comprehend their environment in order to adapt themselves in dependence to the available and relevant contextual information they depend upon. Gathering such contextual information involves real world entities such as sensors, which, for various reasons, are often prone to certain degrees of uncertainty and inaccuracy. Nevertheless, high quality context information plays a vital role in ensuring correct system behavior as well as dynamic system and service adaptation. Thus, a set of indicators is required which allows determining the quality of contextual information, which is commonly known as quality of context (QoC). One of the most relevant parameter of the QoC is the probability of correctness (PoC), which expresses the level of confidence, that the contextual information sensed, are in fact correct or not. In this paper, we propose an approach for measuring the PoC of context information by firstly analyzing the nature of context information and, secondly, revisiting the concept of quality of context also discussing other QoC parameters. Finally, we present a novel approach for quantifying the PoC for specific context information and evaluate the proposed method on a concrete case study.
Riedl, C. ; Leimeister, J. M. ; Krcmar, H.:New Service Development for electronic services - A literature review.. In: 15. Americas Conference on Information Systems (AMCIS) 2009. San Francisco, USA, 2009. — 131 (15-09)
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Roßnagel, A. ; Schmidt, A. U. ; Wilke, D.:Rechtssichere Transformation signierter Dokumente – Anforderungen, Konzepte, Umsetzung, Der elektronische Rechtsverkehr. vol. 18 : Nomos, 2009
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Kusber, Rico ; Brgulja, Nermin ; David, Klaus:Self-adaptation for Deployment Decision Making.. In: Tavangarian, D. ; Kirste, T. ; Timmermann, D. ; Lucke, U. ; Versick, D. (eds.): Proceedings of the International Conference on Intelligent Interactive Assistance and Mobile Multimedia Computing, Communications in Computer and Information Science. vol. 53. Berlin, Heidelberg : Springer Berlin Heidelberg, 2009 — ISBN 978-3-642-10263-9, pp. 339–340
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In this paper we present an intelligent assistant for deploying services and obtaining content in distributed computing network. We focus on how self-adaptation is achieved and illustrate the capabilities and limits of self-adaptation within our approach with the help of provider reputation values.
Comes, Diana ; Bleul, Steffen ; Zapf, Michael:Management of Business Processes with the BPRules Language in Service Oriented Computing.. In: Workshops der Wissenschaftlichen Konferenz Kommunikation in Verteilten Systemen (WowKiVS) 2009, Kassel. Kassel, Germany : VDE, 2009
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Borys, Bernd-Burkhard:Sound design for auditory guidance in aircraft cockpits.. In: Waard, D. de ; Godthelp, J. H. ; Kooi, F. L. ; Brookhuis, K. A. (eds.): Human Factors: Security and Safety. Maastricht : Shaker Publishing, 2009, pp. 113–121
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Auditory information from the situation around us, available in open nature is lost in vehicles. To maintain the three-dimensional picture and situational awareness, pilots in an aircraft cockpit need to interpret two-dimensional data provided on flat screens. The visual information prevails; the auditory channel is used mainly for alerting or getting attention. In an ongoing research project we evaluate means to provide information using audio signals. For these audio signals, carrying information about state, direction, and amount of deviation explicit sound design is essential. Even when using voice commands, where the information is put into the words chosen, parameters exist that can support or oppose to this semantic information, like pitch (low to relax, high to alert), personality (robotic for regular automatic updates, human for unexpected trustworthy information). The paper shows, how an existing flight instrument is mapped to an audio display and what principles from psychology and music are applied to sound design.
Bleul, Steffen ; Geihs, Kurt ; Comes, Diana ; Kirchhoff, Marc:Automated Integration of Web Services in BPEL4WS Processes.. In: 16. Fachtagung Kommunikation in Verteilten Systemen, KiVS 2009, Kassel. Kassel, Germany : VDE, 2009
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Comes, Diana ; Bleul, Steffen ; Weise, Thomas ; Geihs, Kurt:A Flexible Approach for Business Processes Monitoring.. In: Oliveira, R. ; Senivongse, T. (eds.): Proceedings of the International Symposium (on) Distributed Computing Techniques (DisCoTec), 9th IFIP international conference on Distributed Applications and Interoperable Systems, DAIS 2009, Lecture Notes in Computer Science (LNCS), subseries SL 6 -- Image Processing, Computer Vision, Pattern Recognition, and Graphics. vol. 5523/2009. Lisbon, Portugal : Springer Verlag, 2009 — ISBN 3-642-02163-8, 978-3-642-02163-3, pp. 116–128
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Business processes and their implementation as Web Service Compositions are not only dependent on Web Services and partners all over the Internet, but also on their failsafe execution. Service providers have to obligate their services to perform according to negotiated Quality of Service (QoS) parameters. For example, response time and throughput are important parameters to achieve fast and efficient services. Overloaded or failing services may compromise the reliability and execution of whole enterprise processes. In this paper we introduce a flexible monitoring approach for the measurement of QoS in BPEL (Business Process Execution Language) processes. We propose a generic algorithm for QoS aggregation in BPEL processes. The novel generic aggregation algorithm applies customized aggregation functions for QoS dimensions. Furthermore, we present a BPEL monitoring system which supports ad-hoc sensor deployment and efficient runtime and offline data aggregation not only for whole process descriptions but also sections inside service processes.
Fähling, J. ; Köbler, F. ; Leimeister, J. M. ; Krcmar, H.:Wahrgenommener Wert von IT in deutschen Krankenhäusern - Eine empirische Untersuchung unter kaufmännischen, medizinischen und IT-Leitern. Norderstedt, Germany : BoD Verlag, 2009
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Roßnagel, A. ; Jandt, S. ; Schnabel, C.:Die Zulässigkeit einer Kulturflatrate nach nationalem und europäischem Recht. Saarbrücken/Kassel, 2009
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Ringbauer, Brigitte ; Kniewel, Romy ; Hipp, Cornelia:Fußgänger sind keine Autos : Benutzerzentrierte Entwicklung eines Fußgängernavigationssystems.. In: Brau, H. ; Diefenbach, S. ; Hassenzahl, M. ; Kohler, K. ; Koller, F. ; Peissner, M. ; Petrovic, K. ; Thielsch, M. ; et al. (eds.): Usability Professionals 2009 : Berichtband des siebten Workshops des German Chapters der Usability Professionals Association e.V, 06.09.-09.09.2009 an der Humboldt-Universität zu Berlin. Stuttgart : Fraunhofer IRB Verlag, 2009, pp. 18–22
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Der Artikel beschreibt die benutzerzentrierte Entwicklung eines Navigationssystems für Fußgänger, das auf einem mobilen Endgerät mit Touchscreen umgesetzt wurde. Es werden spezielle Anforderungen von Fußgängern an Navigationshilfen erläutert und Unterschiede zu Autonavigationssystemen diskutiert. Beispielsweise ist es viel schwieriger, eine Orientierung für Fußgänger zu ermöglichen, da sie sich weniger auf einem festgelegten Straßennetz bewegen und sich eher an markanten örtlichen Gegebenheiten, wie Kreuzungspunkten und Landmarken, orientieren. Auch der Nutzungskontext einer solchen Navigationshilfe differiert, weil es, im Gegensatz zur Fortbewegung mit dem Auto, weniger darauf ankommt, effizient von Punkt A nach B zu kommen, als die Wegfindung mit parallelen freizeitbezogenen Tätigkeiten, wie Bummeln oder Schlendern, zu verbinden. Das entwickelte Konzept ermöglicht die Nutzung verschiedener vordefinierter Kartenansichten für Orientierungs- und Wegefindungsbedürfnisse. Das sindeine Übersichtskarte, eine Restwegkarte und eine Detailkarte für komplexe Raumsituationen. Die unterschiedlichen Nutzungssituationen werden durch verschiedene Modi, z.B. einen Wegfindungsmodus und einen Freizeitmodus, bei dem eher die Orientierung anstelle der Wegfindung im Vordergrund steht, unterstützt. Die Vorgehensweise bei der Entwicklung, zu der z.B. auch ein Wizard-of-Oz Feldtest gehörte, wird kurz erläutert und wichtige Erkenntnisse vorgestellt. Es zeigte sich u.a. insgesamt eine hohe Akzeptanz gegenüber dem entwickelten Prototyp. Zudem wurden die Grundkonzepte bestätigt. Änderungsbedarf ergab sich in Aspekten des Interaktions- und Informationsdesigns. Es mussten z.B. alle automatischen Zooms zwischen Kartenansichten durch einen vom Benutzer initiierten Aufruf ersetzt werden. Außerdem werden im vorliegenden Beitrag ergänzend aktuelle Entwicklungen im Bereich Handynavigation und Fußgängernavigationssysteme aufgegriffen und vergleichend diskutiert.
Bohl, O. ; Manouchehri, S.:Corporate added value in the context of Web 2.0.. In: Dumova, T. ; Fiordo, R. (eds.): Handbook of Research on Social Interaction Technologies and Collaboration Software: Concepts and Trends. Hershey, USA, 2009
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Schuller, Andreas ; Kniewel, Romy ; Hermann, Fabian ; Sabuncuoglu, N.:Mobile Soziale Netzwerke : Interaction Patterns zur Fusion realer und digitaler Welten.. In: Brau, H. ; Diefenbach, S. ; Hassenzahl, M. ; Kohler, K. ; Koller, F. ; Peissner, M. ; Petrovic, K. ; Thielsch, M. ; et al. (eds.): Usability Professionals 2009 : Berichtband des siebten Workshops des German Chapters der Usability Professionals Association e.V, 06.09.-09.09.2009 an der Humboldt-Universität zu Berlin. Stuttgart : Fraunhofer IRB Verlag, 2009, pp. 184–188
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Die fortschreitende Technisierung der Umwelt bewirkt eine zunehmende Überschneidung der realen mit der digitalen Welt. Daraus ergeben sich im mobilen sozialen Nutzungskontext interessante Entwicklungspotentiale für neue Technologien und neuartige Kommunikations- und Interaktionsformen. Die bisher praktizierten Interaktionsformen und -regeln der zwei Welten treffen aufeinander, ergänzen und erweitern sich. Beispielsweise werden die Möglichkeiten zur Bildung und Pflege sozialer Beziehungen und Netzwerke zusammengeführt. In diesem Beitrag werden beispielhaft mögliche neue Interaktionsformen in der Grammatik von Design Patterns (vgl. Lukosch, 2007) dargestellt. Daneben wird das ihnen zugrunde liegende Rahmenkonzept erläutert. Dessen Bestandteile sind u.a. die Elemente Lokalität, Zeit, soziales Objekt und Embodied Interaction als Verbindungsglied zwischen realer und digitaler Welt.
Ebner, W. ; Leimeister, J. M. ; Krcmar, H.:Community Engineering for Innovations - The Ideas Competition as a method to nurture a Virtual Community for Innovations.. In: R & D Management. vol. 39, 2009. — 152 (36-09), pp. 342–356
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Lamla, Jörn:Soziale Verbrauchervernetzung – Neue Spannungslinien im kulturel-len Kapitalismus?. In: Bieber, C. ; Eifert, M. ; Groß, T. ; Lamla, J. (eds.): Soziale Netze in der digitalen Welt. Das Internet zwischen egalitärer Teilhabe und ökonomischer Macht. Frankfurt/ New York : Campus, 2009, pp. 129–140
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Koene, P. ; Köbler, F. ; Leimeister, J. M. ; Krcmar, H.:Mobil50+ - Innovative NFC- und IT-basierte Dienstleistungen für mobiles Leben und Aktivität mit 50+.. In: Wandke, H. ; Kain, S. ; Struve, D. (eds.): Mensch & Computer 2009. Berlin, Germany, 2009. — 150 (34-09)
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Kusber, Rico ; Brgulja, Nermin ; David, Klaus:Adaptability of a Deployment Decision Making System.. In: Computation World: Future Computing, Service Computation, Cognitive, Adaptive, Content, Patterns, COMPUTATIONWORLD ’09. Athens, Greece : IEEE, 2009, pp. 27–32
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In our living environments today, computer networks, computing devices, sensors and many other entities produce a large amount of data to be processed. This data comprise, for example, digital media content, news, computational resources like services, and much more. To be able to exploit this data, a (human or computer) user may utilize digital assistants. In this paper, we present such an assistant for deploying services and obtaining content data. We concentrate especially on how this assistant is able to adapt to changing situations, both, user-driven and in a self-adaptive manner. An experimental evaluation, based on real world digital video providers, demonstrates prerequisites, results, and potential of the various ways of adaptation within the presented approach.
Fähling, J. ; Leimeister, J. M. ; Yetton, P. ; Krcmar, H.:Managing an IT carve-out at a multi-national enterprise.. In: European Conference on Information Systems (ECIS). Verona, Italy, 2009. — 136 (20-09)
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Schmidt, L.: User Experience und emotionale Mensch-Maschine-Interaktion. In: World Usability Day 2009, Vortrag, World Usability Day 2009, Vortrag.. Kassel (2009)
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Lau, Sian Lun ; Klein, Niklas ; Pirali, Andreas ; König, Immanuel ; David, Klaus:Implementation of a User-Centric Context-Aware Playground.. In: Workshops der Wissenschaftlichen Konferenz Kommunikation in Verteilten Systemen 2009 (WowKiVS 2009). vol. 17 : Electronic Communications of the EASST, 2009
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Roßnagel, Alexander: Digitale Rechteverwaltung – Eine gelungene Allianz von Recht und Technik?. In: Roßnagel, A. (ed.) (2009)
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Benz, Dominik ; Krause, Beate ; Kumar, G. Praveen ; Hotho, Andreas ; Stumme, Gerd:Characterizing Semantic Relatedness of Search Query Terms.. In: Proceedings of the 1st Workshop on Explorative Analytics of Information Networks (EIN2009). Bled, Slovenia, 2009
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Roßnagel, A. ; Hornung, G. ; Jandt, S.:Teil-Rechtsgutachten zu den datenschutzrechtlichen Fragen der medizinischen Forschung, 2009
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Manouchehri, S. ; Winand, U.:Health care 2.0: The use of Web 2.0 in health care.. In: Murugesan, S. (ed.): Handbook of Research on Web 2.0, 3.0 and X.0: Technologies, Business and Social Applications. Hershey, USA : IGI Global, 2009
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Bretschneider, U.:Motivation for Participation in Ideas Competitions: Empirical Insights from the SAPiens Case.. In: Arndt, H. K. ; Krcmar, H. (eds.): Very Large Business Applications (VLBA). Aachen, Germany : Shaker Verlag, 2009. — 99, pp. 124–138
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Benz, Dominik ; Eisterlehner, Folke ; Hotho, Andreas ; Jäschke, Robert ; Krause, Beate ; Stumme, Gerd:Managing publications and bookmarks with BibSonomy.. In: Cattuto, C. ; Ruffo, G. ; Menczer, F. (eds.): HT ’09: Proceedings of the 20th ACM Conference on Hypertext and Hypermedia. New York, NY, USA : ACM, 2009 — ISBN 978-1-60558-486-7, pp. 323–324
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In this demo we present BibSonomy, a social bookmark and publication sharing system.
Schmidt, L.: Statusanzeigen und Alarmmanagement in der Medizintechnik. In: NAMUR-Arbeitskreis 2.9 "Mensch-Prozess-Kommunikation", eingeladener Vortrag, NAMUR-Arbeitskreis 2.9 "Mensch-Prozess-Kommunikation", eingeladener Vortrag.. Saarbrücken (2009)
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Schmidt, L. ; Ley, D.:Human-Computer Interaction in Aerial Surveillance Tasks.. In: Schlick, C. M. (ed.): Industrial Engineering and Ergonomics: Visions, Concepts, Methods and Tools. Berlin : Springer, 2009, pp. 511–521
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Supervisory control of complex systems or processes by a human operator can be understood as a superordinated control loop of the technical system. In this procedure there are three steps: (1) the operator monitors the state of a process or system, (2) he analyses and assesses it in comparison with a desired state, and finally (3), a correction by a specific operation is planned and carried out, if necessary. In the context of military aerial surveillance, the essential identification and classification tasks of aircrafts are based on various sensors and data exchange with other military units. Numerous additional conditions (e.g. the political situation) have to be considered. To assist operators in aerial surveillance tasks as well as in time-critical situations and at a computer workstation with a high informational workload, the design of ergonomic human-computer interaction is a crucial factor. A model-based design of human-computer interaction for aerial surveillance tasks at military workplaces is described in this contribution. First, interactions are generally characterized according to an extended semiotic model containing four levels of interaction (pragmatic, semantic, syntactic, and physical). In the second step, the model is used for deriving and describing design consequences. Finally, as an example, it is illustrated how to design a user interface for aerial surveillance tasks according to the model.
Flach, Alexander ; David, Klaus:A Physical Analysis of an Accident Scenario between Cars and Pedestrians.. In: 2009 IEEE 70th Vehicular Technology Conference Fall (VTC-Fall). Anchorage, AK, USA : IEEE, 2009, pp. 1–5
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Every year still thousands of people are injured or killed in accidents with cars, trucks and busses. Many of these people are pedestrians or cyclists. Several research groups work on solutions to avoid accidents between cars and pedestrians with the help of different technologies. In this paper we present an innovative approach for a collision avoidance system which should be able to tackle these accidents. To understand the potential of this approach, we will present a physical analysis of the system time available between detection, warning and reaction. We also discuss different architectures of our approach utilizing ad-hoc and/or cellular technologies. Additionally, we present experimental results of connection establishment and ping response times of these wireless technologies.
Skubch, Hendrik ; Wagner, Michael ; Reichle, Roland:A Language for Interactive Cooperative Agents. http://www.scientificcommons.org/43628290 : University of Kassel, 2009
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Cooperative behaviour of agents within highly dynamic and nondeterministic domains is an active field of research. In particular establishing highly responsive teamwork, where agents are able to react on dynamic changes in the environment while facing unreliable communication and sensory noise, is an open problem. Moreover, modelling such responsive, cooperative behaviour is difficult. In this work, we specify a novel model for cooperative behaviour geared towards highly dynamic domains. In our approach, agents estimate each other’s decision and correct these estimations once they receive contradictory information. We aim at a comprehensive approach for agent teamwork featuring intuitive modelling capabilities for multi-agent activities, abstractions over activities and agents, and a clear operational semantic for the new model. This work encompasses a complete specification of the new language, ALICA.
Bretschneider, U. ; Leimeister, J. M. ; Krcmar, H.:Gedruckte RFID-Tags für die Durchführung von Messen und Konferenzen: Untersuchung der Einflussgrößen auf die Besucherakzeptanz.. In: Leimeister, J. M. ; Krcmar, H. (eds.): Gedruckte Polymer-RFID-Transponder: Erste Erfahrungen und Erkenntnisse aus dem Forschungsprojekt PRISMA. Lohmar, Germany : Eul Verlag, 2009. — 153 (37-09), pp. 73–90
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Leimeister, J. M. ; Knebel, U. ; Krcmar, H.: Hybrid Value Creation in the sports industry - the case of the mobile sports companion. In: International Journal of Information Systems in the Service Sector (IJISSS) (2009), pp. 11–25. — 123 (7-09)
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Bretschneider, U. ; Leimeister, J. M. ; Krcmar, H.:RFID-Systeme für Messen und Konferenzen - Untersuchung der Einflussgrößen auf die Besucherakzeptanz.. In: Proceedings of Mobilität und mobile Informationssysteme (MMS). Münster, Germany, 2009. — 166
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Bretschneider, U. ; Leimeister, J. M. ; Krcmar, H.: Methoden der Kundenintegration in den Innovationsprozess - Eine Bestandsaufnahme. In: Arbeitspapiere Nr. 34 des Lehrstuhls für Wirtschaftsinformatik. München, Germany, Lehrstuhl für Wirtschaftsinformatik, Technische Universität München (2009), Nr. 34. — 98 (38-09)
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Geihs, Kurt ; Reichle, Roland ; Wagner, Michael ; Khan, Mohammad Ullah:Service-Oriented Adaptation in Ubiquitous Computing Environments.. In: CSE (2) : IEEE Computer Society, 2009, pp. 458–463
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Roßnagel, Alexander:Kennzeichenscanning - Umsetzung der Vorgaben des Bundesverfassungsgerichts : ADAC-Verlag, 2009
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Roßnagel, Alexander:Digitale Rechteverwaltung -- Ein gelungenes Beispiel für die Allianz von Recht und Technik?. In: Roßnagel, A. (Hrsg.) (ed.): , 2009, pp. 15–25
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Hotho, Andreas ; Jäschke, Robert ; Benz, Dominik ; Grahl, Miranda ; Krause, Beate ; Schmitz, Christoph ; Stumme, Gerd:Social Bookmarking am Beispiel BibSonomy.. In: Blumauer, A. ; Pellegrini, T. (eds.): Social Semantic Web, X.media.press. Berlin, Heidelberg : Springer, 2009 — ISBN 978-3-540-72215-1, pp. 363–391
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BibSonomy ist ein kooperatives Verschlagwortungssystem (Social Bookmarking System), betrieben vom Fachgebiet Wissensverarbeitung der Universität Kassel. Es erlaubt das Speichern und Organisieren von Web-Lesezeichen und Metadaten für wissenschaftlichePublikationen. In diesem Beitrag beschreiben wir die von BibSonomy bereitgestellte Funktionalität, die dahinter stehende Architektursowie das zugrunde liegende Datenmodell. Ferner erläutern wir Anwendungsbeispiele und gehen auf Methoden zur Analyse der in BibSonomy und ähnlichen Systemen enthaltenen Daten ein.
Roßnagel, Alexander:Datenschutz.. In: Andersen, U. ; Woyke, W. (eds.): : Andersen, U./Woyke, W. (Hrsg.), Handwörterbuch des politischen Systems der Bundesrepublik Deutschland, 2009, pp. 132–134
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Geihs, Kurt ; Reichle, Roland ; Wagner, Michael ; Khan, Mohammad Ullah:Modeling of Context-Aware Self-Adaptive Applications in Ubiquitous and Service-Oriented Environments.. In: Cheng, B. H. ; de Lemos, R. ; Giese, H. ; Inverardi, P. ; Magee, J. (eds.): Software Engineering for Self-Adaptive Systems : Springer, 2009. — to appear
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Schmidt, L.: Mensch-Maschine-Systeme im 21. Jahrhundert. In: Mitgliederversammlung der Carl-Cranz-Gesellschaft, eingeladener Vortrag, Mitgliederversammlung der Carl-Cranz-Gesellschaft, eingeladener Vortrag.. Oberpfaffenhofen (2009)
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Dünnebeil, S. ; Sunyaev, A. ; Mauro, C. ; Leimeister, J. M. ; Krcmar, H.:Konzeption patientenzentrierter Mehrwertdienste für die Deutsche Gesundheitstelematik.. In: 54. Jahrestagung der Deutschen Gesellschaft für Medizinische Informatik, Biometrie und Epidemiologie (GMDS) 2009. Essen, Germany, 2009. — 143 (27-09)
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Devlic, Alisa ; Reichle, Roland ; Wagner, Michal ; Pinheiro, Manuele Kirsch ; Vanrompay, Yves ; Berbers, Yolande ; Valla, Massimo:Context inference of users´ social relationships and distributed policy management.. In: 6th IEEE Workshop on Context Modeling and Reasoning (CoMoRea) at the 7th IEEE International Conference on Pervasive Computing and Communication (PerCom’09), 2009. — accepted for publication
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Schmidt, L. ; Domhardt, M.:Untersuchung des Neural Impulse Actuators als Brain-Computer-Interface.. In: Welke, S. ; Kolrep, H. ; Rötting, M. (eds.): Biophysiologische Interfaces in der Mensch-Maschine-Interaktion: 1. Berliner Fachtagung (Berlin 2009), Fortschrittberichte VDI, Reihe 22, Mensch-Maschine-Systeme. Düsseldorf : VDI-Verlag, 2009, pp. 21–28
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Vor Kurzem hat die Spiele-Industrie erste Geräte auf den Markt gebracht, die basierend auf dem Prinzip eines Brain-Computer-Interface (BCI) Computerspiele steuern sollen. Die Hersteller versprechen einfach benutzbare Hardware, optimierte Einrichtungs- und Kalibrierassistenten und vorkonfigurierten Softwareprofile für unterschiedliche Computerspiele, die jedem Benutzer den einfachen Einstig in das Spielgeschehen und eine schnellere Interaktion als mit konventionellen Eingabegeräten ermöglichen sollen. Sind diese Geräte trotz der einfachen Sensorik auch als biophysiologisches Interface für die Mensch-Computer-Interaktion bei anderen Anwendungen benutzbar? Dieser Beitrag gibt einen Überblick über derzeit verfügbare und angekündigte Geräte und stellt mit dem Neural Impulse Actuator exemplarisch ein solches Spiele-BCI vor. Ein Usability-Test, bei dem Stärken und Schwächen mit verschiedenen Testaufgaben untersucht wurden, kommt zu dem Ergebnis, dass Interaktionsaufgaben allein mit dem untersuchten BCI erfüllbar sind und solche Systeme eine sinnvolle Ergänzung zur herkömmlichen Interaktion sein können. Gleichzeitig wurde - gemessen an den hohen Erwartungen - jedoch auch noch deutliches Optimierungspotential identifiziert. Abschließend erfolgt eine Abschätzung der weiteren Einsatzmöglichkeiten im Bereich der Mensch-Computer-Interaktion.
Huber, M. ; Leimeister, J. M. ; Krcmar, H.:Towards a pattern based approach for designing virtual communities for innovations.. In: Mensch und Computer 2009. Berlin, Germany, 2009. — 151 (35-09)
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Geppert, M. ; Roßnagel, A. (eds.):TeleMediaR - Telekommunikations- und Multimediarecht, dtv-Textsammlung mit einer Einführung. achte., 2009
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Hoffman, H. ; Fähling, J. ; Leimeister, J. M. ; Krcmar, H.:Kundenintegration in die Innovationsprozesse bei hybriden Produkten - Eine Bestandsaufnahme.. In: Informatik 2009 - Im Focus das Leben. Lübeck, Germany : GI - Gesellschaft für Informatik, GI Lecture Notes in Informatics, 2009. — 149 (33-09)
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Markines, Benjamin ; Cattuto, Ciro ; Menczer, Filippo ; Benz, Dominik ; Hotho, Andreas ; Stumme, Gerd:Evaluating Similarity Measures for Emergent Semantics of Social Tagging.. In: 18th International World Wide Web Conference, 2009, pp. 641–641
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Social bookmarking systems and their emergent information structures, known as folksonomies, are increasingly important data sources for Semantic Web applications. A key question for harvesting semantics from these systems is how to extend and adapt traditional notions of similarity to folksonomies, and which measures are best suited for applications such as navigation support, semantic search, and ontology learning. Here we build an evaluation framework to compare various general folksonomy-based similarity measures derived from established information-theoretic, statistical, and practical measures. Our framework deals generally and symmetrically with users, tags, and resources. For evaluation purposes we focus on similarity among tags and resources, considering different ways to aggregate annotations across users. After comparing how tag similarity measures predict user-created tag relations, we provide an external grounding by user-validated semantic proxies based on WordNet and the Open Directory. We also investigate the issue of scalability. We ?nd that mutual information with distributional micro-aggregation across users yields the highest accuracy, but is not scalable; per-user projection with collaborative aggregation provides the best scalable approach via incremental computations. The results are consistent across resource and tag similarity.
Roßnagel, A. (ed.):Mobilität und Kontext Zukunftsentwicklungen der mobilen Kommunikation in Recht und Technik. vol. 38 : Nomos, 2009
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Leimeister, J. M.:IT-basierte, gemeinschaftsgestützte Innovationsentwicklung für Softwareunternehmen.. In: Spath, D. (ed.): . Stuttgart, Germany : Fraunhofer-Verlag, 2009. — 134 (35-09)
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Krcmar, H. ; Leimeister, J. M. ; Leimeister, S. ; Schermann, M. ; Wolf, P. ; Wittges, H.:4th Workshop on Information Systems and Services Sciences 2009.. In: Studien des Lehrstuhls für Wirtschaftsinformatik Technische Universität München, 2009
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Fähling, J. ; Köbler, F. ; Leimeister, J. M. ; Krcmar, H.: Wahrnehmung des Wertbeitrags von Informationstechnologie in deutschen Krankenhäusern. In: Krankenhaus-IT-Journal (2009), Nr. 1, pp. 34–36. — EXT31
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Leimeister, J. M. ; Huber, M. ; Bretschneider, U. ; Krcmar, H.: Leveraging Crowdsourcing: Activation-Supporting components for IT-based ideas competition. In: Journal of Management Information Systems (JMIS) vol. 26 (2009), Nr. 1, pp. 197–224. — 138 (22-09)
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Schmidt, L.: Benutzerzentrierte Augmented-Reality-Systemgestaltung. In: Kasseler Informatik-Kolloquium, Vortrag, Kasseler Informatik-Kolloquium, Vortrag.. Kassel (2009)
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Augmented Reality (AR) ist eine in der praktischen Anwendung immer noch wenig verbreitete interaktive Technologie, die die reale Umwelt so mit computergenerierten Informationen bedarfsgerecht und kontextbezogen ergänzen oder bereichern (augmentieren) kann, dass für den Benutzer der Eindruck einer Verschmelzung dieser Informationen mit der wahrgenommenen Realität entsteht. Neben einem Überblick zu den damit zusammenhängenden Gestaltungsbereichen für die Mensch-Maschine-Interaktion wird ein an ISO 13407 angelehntes Vorgehen vorgestellt, das eine aufgaben- und benutzergerechte Systemgestaltung gewährleisten soll. Dieses systematische Vorgehen wird im Vortrag anhand von Anwendungsbeispielen konkretisiert. Beispielsweise wurden in der Analysephase die Anforderungen an AR-Anwendungen partizipativ und szenarienbasiert in verschiedenen Fokusgruppen erhoben, bevor sie zu Use Cases zusammengefasst wurden. Mit dieser benutzerzentrierten Perspektive werden außerdem grundlagenergonomische Fragen der Displays und Informationsdarstellung, das Usability Engineering der Benutzungsschnittstellen und systemergonomische Fragestellungen der AR-Technologienutzung in unterschiedlichen Anwendungsfeldern und Arbeitskontexten aufgegriffen.
Fähling, J. ; Köbler, F. ; Leimeister, J. M. ; Krcmar, H.:Wahrgenommener Wertbeitrag von IT in deutschen Krankenhäusern.. In: Krankenhaus IT-Journal. vol. 2009, 2009, pp. 34–36
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Berkovich, M. ; Esch, S. ; Leimeister, J. M. ; Krcmar, H.:Requirements engineering for hybrid products as bundles of hardware, software and service elements - a literature review.. In: Proceedings of Wirtschaftsinformatik. Wien, Austria, 2009. — 120 (4-09)
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Fähling, J. ; Köbler, F. ; Leimeister, J. M. ; Krcmar, H.:Wahrnehmung des Wertbeitrags von Informationstechnologie in Deutschen Krankenhäusern - Eine empirische Studie.. In: Hansen, H. R. ; Karagiannis, D. ; Fill, H. G. (eds.): 9. Internationale Tagung Wirtschaftsinformatik. vol. 9. Wien, Austria : Österreichische Computer Gesellschaft, 2009. — 154 (37-09), pp. 709–718
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Huber, M. J. ; Bretschneider, U. ; Leimeister, J. M. ; Krcmar, H.:Making innovation happen: Tool-support for software related communities for innovations.. In: Pipek, V. ; Rohde, M. (eds.): International Reports on Socio-Informatics - Open Design Spaces Supporting User Innovation. International Workshop on Open Design Spaces (ODS) 2009. Bonn, Germany, 2009. — 140 (24-09)
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2008[ to top ]

Schmidt, L.:Blickbewegungsanalyse zur software-ergonomischen Evaluation - Methode und Anwendungsbeispiel.. In: Automatisierungstechnik, V.-G. M.- und (ed.): Useware 2008: Verfahrens- und Produktionstechnik, Engineering, Informationspräsentation und Interaktionskonzepte (Baden-Baden 2008), VDI-Berichte. Düsseldorf : VDI-Verlag, 2008, pp. 245–257
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Zur Bewertung der Gebrauchstauglichkeit von Mensch-Maschine-Schnittstellen bieten sich zahlreiche Methoden an, deren Ergebnisse als konstruktive Basis für die benutzungsbezogene Verbesserung herangezogen werden können. In diesem Beitrag wird die Methode der Blickbewegungsanalyse mit ihren zentralen Parametern als software-ergonomisches Evaluationsverfahren vorgestellt und beispielhaft für die Untersuchung und Bewertung einer webbasierten Buchungsoberfläche für Flugtickets verwendet. Zusätzlich zu Benutzerleistungsdaten (wie Ausführungszeiten und Fehler) stehen damit weitere verhaltensbeschreibende objektive Daten zur Verfügung, die durch in Benutzerbefragungen erhobene, subjektive software-ergonomische Bewertungen ergänzt werden. Durch diese Methodenkombination sollte auch der Frage nachgegangen werden, ob sich die subjektiven und objektiven Daten sinnvoll gegenseitig ergänzen, so dass im Ergebnis besser auf Benutzbarkeitsdefizite geschlossen werden kann. An der empirischen Untersuchung des Fallbeispiels nahmen 20 Probanden teil, die jeweils drei repräsentative Ticket-Buchungsaufgaben lösen mussten. Die Auswertung der Blickbewegungs- und Leistungsdaten sowie der verwendeten Fragebögen lieferte trotz des hohen Erprobungsgrades der Buchungsschnittstelle und ihrer Vorgängerversionen insgesamt zahlreiche Hinweise, die im Sinne einer formativen Evaluation für die Überarbeitung der Buchungsoberfläche genutzt werden konnten. Die Analyse identifizierte teilweise übereinstimmende Problembereiche, ein Teil der Defizite konnte jedoch nur anhand der Blickbewegungsdaten aufgedeckt werden.
Bade, Korinna ; Benz, Dominik:Evaluation Strategies for Learning Algorithms of Hierarchical Structures.. In: Proceedings of the 32nd Annual Conference of the German Classification Society - Advances in Data Analysis, Data Handling and Business Intelligence (GfKl 2008), Studies in Classification, Data Analysis, and Knowledge Organization. Berlin-Heidelberg : Springer, 2008. — in press
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Several learning tasks comprise hierarchies. Comparison with a "goldstandard" is often performed to evaluate the quality of a learned hierarchy. We assembled various similarity metrics that have been proposed in different disciplines and compared them in a unified interdisciplinary framework for hierarchical evaluation which is based on the distinction of three fundamental dimensions. Identifying deficiencies for measuring structural similarity, we suggest three new measures for this purpose, either extending existing ones or based on new ideas. Experiments with an artificial dataset were performed to compare the different measures. As shown by our results, the measures vary greatly in their properties.
Krcmar, H. ; Böhmann, T. ; Leimeister, J. M. ; Wolf, P. ; Wittges, H.:Workshop on Information Systems and Services Sciences 2008.. In: Studien des Lehrstuhls für Wirtschaftsinformatik Technische Universität München, 2008
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Schmidt, L. ; Grandt, M.:Modellbasierte Gestaltung von Benutzungsschnittstellen zur Prozessführung und -überwachung.. In: Schmidt, L. ; Schlick, C. M. ; Grosche, J. (eds.): Ergonomie und Mensch-Maschine-Systeme. Berlin : Springer, 2008, pp. 103–123
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In diesem Beitrag wird ein Entscheidungsleiter-Modell für die menschliche Informationsverarbeitung vorgestellt und exemplarisch für die Gestaltung von Benutzungsschnittstellen verwendet. Das hierarchisch geordnete Modell bildet Wissenszustände und Informationsverarbeitungsschritte bei der Situationsanalyse und Handlungsplanung ab und wird als Grundlage für eine kognitiv-kompatible Systemgestaltung genutzt. Durch die Unterteilung des gesamten Verarbeitungsprozesses in verschiedene kognitive Teilaufgaben lassen sich die jeweils dazu benötigten Informationen identifizieren und formulieren. Jede der im Modell repräsentierten Analyseaktivitäten verlangt nach einer speziellen Art der Darstellung der zugrundeliegenden Informationen, damit sie optimal in den erforderlichen Entscheidungsschritt eingebunden werden können. Im Einzelnen werden dazu Aspekte der Aktivierung, der Beobachtung und Identifizierung von kritischen Zuständen, der regelbasierten Ableitung von Handlungsbedarf, der Bildung von Zustandsgrößen und der wissensbasierten Analyse und Handlungsplanung aufgegriffen und anhand eines Anwendungsbeispiels konkretisiert. Dazu wurde exemplarisch eine Mensch-Maschine-Schnittstelle konzipiert und prototypisch in einer Experimental- und Testumgebung realisiert, mit deren Hilfe Prozesse der Luftraumüberwachung und Lagebewertung durch einen Operateur auf verschiedenen kognitiven Ebenen unterstützt werden sollen.
Knopp, Michael: Besprechung von LG München, Urteil vom 21.5.2008. In: Knopp, M. (ed.) (2008)
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Bleul, Steffen ; Comes, Diana ; Kirchhoff, Marc ; Zapf, Michael:Self-Integration of Web Services in BPEL Processes : University of Kassel, 2008. — Presented at SAKS 2008 Workshop, Wiesbaden
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Knaup, Petra ; Mauro, Christian ; Leimeister, Jan Marco ; Winter, Alfred:Gesundheitstelematik und elektronische Gesundheitskarte.. In: Hegering, H.-G. ; Lehmann, A. ; Ohlbach, H. J. ; Scheideler, C. (eds.): GI Jahrestagung, LNI. München, 2008 — ISBN 978-3-88579-227-7
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Krause, Beate ; Hotho, Andreas ; Stumme, Gerd:A Comparison of Social Bookmarking with Traditional Search.. In: Macdonald, C. ; Ounis, I. ; Plachouras, V. ; Ruthven, I. ; White, R. W. (eds.): 30th European Conference on IR Research, ECIR 2008, Lecture Notes in Computer Science. vol. 4956. Glasgow, UK : Springer, 2008 — ISBN 978-3-540-78645-0, pp. 101–113
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Automated Management of Dynamic Web Service Integration.. In: Bleul, S. ; Geihs, K. ; Comes, D. ; Kirchhoff, M. (eds.): 15th Annual Workshop of HP Software University Association (HP-SUA), 15th Annual Workshop of HP Software University Association (HP-SUA). Marrakech, Maroc : Infonomics-Consulting, Stuttgart - Germany, 2008
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Baer, Philipp A.:Platform-Independent Development of Robot Communication Software, University of Kassel, Germany, PhD dissertation, 2008
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Baer, Philipp A. ; Geihs, Kurt: Robot Control Architectures -- Another Tower of Babel?. In: Microsoft Technical Summit, Microsoft Academic Days 2008 (2008)
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Krause, Beate ; Jäschke, Robert ; Hotho, Andreas ; Stumme, Gerd:Logsonomy - Social Information Retrieval with Logdata.. In: HT ’08: Proceedings of the Nineteenth ACM Conference on Hypertext and Hypermedia. Pittsburgh, PA, USA : ACM, 2008 — ISBN 978-1-59593-985-2, pp. 157–166
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Social bookmarking systems constitute an established part of the Web 2.0. In such systems users describe bookmarks by keywords called tags. The structure behind these social systems, called folksonomies, can be viewed as a tripartite hypergraph of user, tag and resource nodes. This underlying network shows specific structural properties that explain its growth and the possibility of serendipitous exploration. Today’s search engines represent the gateway to retrieve information from the World Wide Web. Short queries typically consisting of two to three words describe a user’s information need. In response to the displayed results of the search engine, users click on the links of the result page as they expect the answer to be of relevance. This clickdata can be represented as a folksonomy in which queries are descriptions of clicked URLs. The resulting network structure, which we will term logsonomy is very similar to the one of folksonomies. In order to find out about its properties, we analyze the topological characteristics of the tripartite hypergraph of queries, users and bookmarks on a large snapshot of del.icio.us and on query logs of two large search engines. All of the three datasets show small world properties. The tagging behavior of users, which is explained by preferential attachment of the tags in social bookmark systems, is reflected in the distribution of single query words in search engines. We can conclude that the clicking behaviour of search engine users based on the displayed search results and the tagging behaviour of social bookmarking users is driven by similar dynamics.
Schnabel, Christoph ; Roßnagel, Alexander: Die Authentisierungsfunktion des elektronischen Personalausweises aus datenschutzrechtlicher Sicht. In: Roßnagel, C. S. A. (ed.) (2008), pp. 168–172
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Schmidt, L.: Usability - die Relevanz der Benutzerfreude. In: World Usability Day 2008, Panel Diskussion, World Usability Day 2008, Panel Diskussion.. Kassel (2008)
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Baer, Philipp A. ; Reichle, Roland ; Geihs, Kurt:The Spica Development Framework -- Model-Driven Software Development for Autonomous Mobile Robots.. In: Burgard, W. ; Dillmann, R. ; Plagemann, C. ; Vahrenkamp, N. (eds.): Intelligent Autonomous Systems 10 -- IAS-10, 2008, pp. 211–220
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Schnabel, Christoph ; Jandt, Silke: Location Based Services im Fokus des Datenschutzes. In: Jandt, C. S. S. (ed.) (2008), pp. 723–729
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Basal, A. ; Blake, M. B. ; Kona, S. ; Bleul, S. ; Weise, T. ; Jaeger, M. C. (eds.):WSC-08: Continuing the Web Services Challenge, IEEE Joint Conference (CEC/EEE 2008) on E-Commerce Technology (Tenth CEC’07) and Enterprise Computing, E-Commerce and E-Services (Fifth EEE’08). Washington D.C., USA : IEEE, 2008
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Schmidt, L. ; Ley, D.:Gestaltung einer Luftraumüberwachungsanzeige anhand des Semiotischen Modells.. In: Gesellschaft für Arbeitswissenschaft e. V. (ed.): Produkt- und Produktions-Ergonomie - Aufgabe für Entwickler und Planer: 54. Kongress der Gesellschaft für Arbeitswissenschaft (München 2008). Dortmund : GfA-Press, 2008, pp. 445–448
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Mit dem Ziel einer software-ergonomischen Anzeigegestaltung wurde an Marine-Arbeitsplätzen in einer Operationszentrale die Mensch-Maschine-Interaktion zur Luftraumüberwachung analysiert. Die Benutzerinteraktionen können mit Hilfe des Semiotischen Modells in vier Ebenen differenziert und entsprechenden hierarchischen Stufen des technischen Systems zugeordnet werden. Dieses Modell wurde dann als Gestaltungsleitlinie herangezogen und in Kooperation mit Marine-Experten ein Prototyp entwickelt. Die Modellaspekte der einzelnen Ebenen und ihre Umsetzung in der Luftraum-überwachungsanzeige werden in diesem Beitrag vorgestellt.
Krcmar, H. ; Böhmann, T. ; Leimeister, J M. ; Wolf, P. ; Wittges, H.:2nd Workshop on Information Systems and Services Sciences 2008.. In: Studien Lehrstuhl für Wirtschaftsinformatik Technische Universität München, 2008
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Lamla, Jörn:Der digitale Basar.. In: Imbusch, P. ; Sutterlüty, F. (eds.): Abenteuer Feldforschung. Soziologen erzählen. Frankfurt/ New York : Campus, 2008, pp. 149–161
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Knopp, Michael: Elektronische Transaktionen - Anforderungen des Datenschutzes bei der Umsetzung der Dienstleistungsrichtlinie. In: Knopp, M. (ed.) (2008), p. 518
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Schmidt, L. ; Ley, D.: Mensch-Computer-Interaktionsgestaltung zur Luftlagebewertung. In: i-com - Zeitschrift für interaktive und kooperative Medien vol. 7 (2008), Nr. 1, pp. 12–17
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Dieser Beitrag beschreibt die modellbasierte Gestaltung der Mensch-Computer-Interaktion an militärischen Arbeitsplätzen zur Luftlagebewertung. Die Interaktion wird zunächst allgemein anhand eines erweiterten Semiotischen Modells auf vier Ebenen (pragmatisch, semantisch, syntaktisch und physikalisch) charakterisiert. Daraus werden die entsprechenden Gestaltungsbereiche abgeleitet und kurz beschrieben. Als exemplarische Umsetzung wird dann anhand eines Prototyps die Gestaltung einer Benutzungsschnittstelle für die Luftlagebewertung dargestellt.
Schnabel, Christoph ; Hornung, Gerrit: Privacy-enhanced Perso¬¬nali¬sa¬tion in Ambient Environments. In: Hornung, C. S. G. (ed.) (2008)
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Schmidt, L.:Ergonomie und Führungssysteme.. In: Schmidt, L. ; Schlick, C. M. ; Grosche, J. (eds.): Ergonomie und Mensch-Maschine-Systeme. Berlin : Springer, 2008, pp. 67–78
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In der Abteilung Ergonomie und Führungssysteme des FGAN Forschungsinstituts für Kommunikation, Informationsverarbeitung und Ergonomie werden Konzepte, Methoden und Werkzeuge zur benutzerzentrierten Gestaltung von Führungs- und Führungsinformationssystemen erforscht, entwickelt und angewandt. Ziel ist die Bereitstellung der erforderlichen wissenschaftlichen und technologischen Basis für ergonomisch zweckmäßige Ausrüstungsentscheidungen im Verfahren der Bedarfsermittlung und Bedarfsdeckung. Aufbauend auf ergonomischen Anforderungsanalysen werden innovative Mensch-Maschine-Schnittstellen konzipiert, in Form von Prototypen realisiert und hinsichtlich ihrer nutzergerechten Gestaltung in Feld- und Laborstudien evaluiert. Diese methodische Herangehensweise und die verschiedenen, thematisch abgegrenzten Forschungsfelder der Abteilung werden im Folgenden im Überblick dargestellt.
Baer, Philipp A. ; Weise, Thomas ; Geihs, Kurt:Geminga: Service Discovery for Mobile Robotics.. In: The Third International Conference on Systems and Networks Communications : IEEE Computer Society Press, 2008
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Schmidt, L. ; Luczak, H.:Überwachungstätigkeit.. In: Landau, K. ; Pressel, G. (eds.): Medizinisches Lexikon der beruflichen Belastungen und Gefährdungen: Definitionen - Vorkommen - Arbeitsschutz. Stuttgart : Gentner, 2008, pp. 1000–1004
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Als Überwachungstätigkeit wird im Allgemeinen die leitende Kontrolle (Supervisory Control) meist komplexer Systeme oder Prozesse durch einen menschlichen Operateur verstanden. Diese Aufgabe des Operateurs lässt sich qualitativ als übergeordneter Regelungsvorgang beschreiben, bei dem der Zustand eines Prozesses oder Systems beobachtet wird, ein Vergleich mit dem Sollzustand hergestellt wird und ggf. eine Korrekturhandlung geplant und ausgeführt wird.
Schmidt, L. ; Schlick, C. M. ; Grosche, J.:Ergonomie und Mensch-Maschine-Systeme. Berlin : Springer, 2008
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Die ergonomische Gestaltung von komplexen, dynamischen Systemen, in denen Menschen und Maschinen eng zusammenarbeiten, stellt eine besondere wissenschaftliche und technische Herausforderung dar. Durch innovative Konzepte und Technologien ist es heute möglich, den Menschen sehr viel besser als noch vor wenigen Jahren zu befähigen, hochautomatisierte Systeme effektiv und effizient führen und überwachen zu können. Gestaltungsziel ist es, die überragenden Fähigkeiten des Menschen im perzeptiven, kognitiven und sensumotorischen Bereich intelligent mit teilautonomen technischen Funktionen zu verzahnen. Dabei soll der Mensch zwar von unnötigen oder gefährlichen Routineaufgaben entlastet werden, sein Situationsbewusstsein jedoch voll entfalten können. Im vorliegenden Buch stellt das FGAN Forschungsinstitut für Kommunikation, Informationsverarbeitung und Ergonomie den aktuellen Stand von Forschung und Technik dar. Der Schwerpunkt liegt in den Anwendungsbereichen Verteidigung und Sicherheit. Die 25 wissenschaftlichen Beiträge behandeln innovative Aspekte von Mensch-Maschine-Systemen wie multimodale Interaktion, 3D-Visualisierung in Virtueller Realität und Augmented Reality, adaptive Assistenzsysteme, Head-Mounted Displays, Führung unbemannter Robotersysteme, Cognitive Engineering und Ecological Interface Design oder Evaluationsmethoden für die Mensch-Maschine-Interaktion. Angesprochen werden Ingenieure, Informatiker und Technologiemanager, die verantwortlich für die Projektierung und Entwicklung von komplexen Mensch-Maschine-Systemen sind. Auch Studierende technischer Fachrichtungen können sich mit diesem Werk einen umfassenden Überblick über den Stand von Forschung und Technik verschaffen.
Schnabel, Christoph: Sperrungsverpflichtungen von Access-Providern. In: Schnabel, C. (ed.) (2008)
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Schmidt, L. ; Simeonova, E.:Software-ergonomische Evaluation eines Buchungsportals für Flugtickets mittels Blickbewegungsanalyse.. In: Brau, H. ; Diefenbach, S. ; Hassenzahl, M. ; Koller, F. ; Peissner, M. ; Röse, K. (eds.): Usability Professionals 2008: Berichtsband des sechsten Workshops des German Chapters der Usability Professionals Association e.V. (Lübeck 2008). Stuttgart : Fraunhofer IRB Verlag, 2008, pp. 60–64
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Gegenstand dieses Beitrags ist die empirische Untersuchung eines webbasierten Buchungsportals für Flugtickets. Zunächst wird die Methodik der Blickbewegungsanalyse kurz vorgestellt, die als Evaluationsverfahren eingesetzt wurde. Damit stehen zusätzlich zu Leistungsdaten (wie Ausführungszeiten und Fehler) weitere verhaltensbeschreibende objektive Daten zur Verfügung, die durch in Benutzerbefragungen erhobene, subjektive software-ergonomische Bewertungen ergänzt werden. Ziel der Untersuchung war es, durch diese Methodenkombination Gebrauchstauglichkeitsdefizite der Buchungsoberfläche aufzudecken und daraus Gestaltungshinweise zur software-ergonomischen Verbesserung abzuleiten. Am Experiment nahmen 20 Probanden teil, die jeweils drei repräsentative Buchungsaufgaben lösen mussten. Die Analyse der Blickbewegungs- und Leistungsdaten sowie die Fragebogenauswertung identifizierten teilweise übereinstimmende Problembereiche, ein Teil der Defizite konnte jedoch nur anhand der Blickbewegungsdaten aufgedeckt werden.
Klein, Bernd Niklas ; Lau, Sian Lun ; Pirali, Andreas ; Löffler, Tino ; David, Klaus:DAGR - DAG Based Context Reasoning: An Architecture for Context Aware Applications.. In: ASWN ’08: Proceedings of the 2008 Eighth International Workshop on Applications and Services in Wireless Networks. Washington, DC, USA : IEEE Computer Society, 2008 — ISBN 978-0-7695-3389-6, pp. 20–25
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Schnabel, Christoph: Das Recht am eigenen Bild und der Datenschutz. In: Schnabel, C. (ed.) (2008)
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Schnabel, Christoph: "Porn not found". In: Schnabel, C. (ed.) (2008), pp. 26–31
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Söllner, Matthias: Menschliches Verhalten in elektronischen Märkten. In: Bayreuther Arbeitspapiere zur Wirtschaftsinformatik, Bayreuther Arbeitspapiere zur Wirtschaftsinformatik. vol. 34, EPub Bayreuth (2008)
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Diese Arbeit betrachtet menschliches Verhalten auf elektronischen Märkten. In diesem Zusammenhang wurden zwei Experimente durchgeführt, die das Auction Fever in Holländischen Auktionen sowie das menschliche Risikoverhalten im sehr hohen Wahrscheinlichkeitsbereich näher untersuchen. Im Experiment zum menschlichen Risikoverhalten wurde speziell die Bewertung hoher Gewinnwahrscheinlichkeiten durch die Teilnehmer untersucht. Hinsichtlich des Auction Fever wurde ein Referenzexperiment beschrieben, kritisiert und auf Basis dieser Kritik ein Folgeexperiment durchgeführt. Hierbei wurde beobachtet, dass Menschen ein vorher gesetztes Limit nicht konstant unterbieten sondern auch teilweise überbieten. Es wurden außerdem Einflussfaktoren für diesen emotionalen Effekt erarbeitet.
Kusber, Rico ; Haseloff, Sandra ; David, Klaus:Towards Autonomic Deployment Decision Making.. In: Proceedings of the IADIS Multi Conference on Computer Science and Information Systems - Intelligent Systems and Agents, MCCSIS’08. Amsterdam, The Netherlands : IADIS Press, 2008, pp. 188–192
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In order to overcome the problem of rapidly increasing computer system complexity, scientists and developers equip systems and applications with autonomic behavior. A number of research fields have been investigated to find out how autonomicity for computing systems can be created. In this paper we elaborate the domain of making a decision on deploying a service on a device, where deployment can be copying or moving a service from a source to a target device or to access the service remotely. We present an approach for deployment decision making (DDM) which is capable of selecting the one deployment alternative out of many that has maximal usefulness according to a set of defined user preferences. Within that scope, we define an appropriate terminology, describe a music download scenario, and evaluate experimentations we have done on that.
Lamla, Jörn:Markt-Vergemeinschaftung im Internet. Das Fallbeispiel einer Shop-ping- und Meinungsplattform.. In: Hitzler, R. ; Honer, A. ; Pfadenhauer, M. (eds.): Post-traditionale Gemeinschaften. Theoretische und ethnographische Erkundungen. Wiesbaden : VS-Verlag, 2008, pp. 170–185
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Knopp, Michael: Digitalfotos als Beweismittel. In: Knopp, M. (ed.) (2008), p. 156
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Schnabel, Christoph: Böse Zensur, guter Filter?. In: Schnabel, C. (ed.) (2008)
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Kusber, Rico ; Haseloff, Sandra ; David, Klaus:An Approach to Autonomic Deployment Decision Making.. In: Proceedings of the Third International Workshop on Self-Organizing Systems. Berlin, Heidelberg, Germany : Springer International Publishing, 2008 — ISBN 9783540921561 3540921567 9783540921578 3540921575, pp. 121–132
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Adding autonomicity to computing systems seems to be a promising way to deal with the problem of increasing system complexity. One step along the way to self-managing computing systems – especially with regard to distributed, modularized, service based environments – is to solve the problem of how to autonomically decide in a most useful and resource efficient way which alternative to choose in order to deploy a service. Deploying a service means, to either copy or move it from a source to a destination device or to use it remotely. In this paper we motivate the domain of autonomic service deployment and present an approach for deployment decision making (DDM). We explain all steps of the deployment decision making process and assemble them into an algorithm accordingly. Furthermore, we define all necessary components of DDM and enumerate a set of research questions which we address in order to fully explore the concerned domain. An experiment illustrates the potential of the presented approach.
Schnabel, Christoph: Keine Sperrung von Google durch Access-Provider. In: Schnabel, C. (ed.) (2008)
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Becker, J. ; Beverungen, D. ; Knackstedt, R. ; Glauner, C. ; Stypmann, M. ; Rosenkranz, C. ; Schmitt, R. ; Hatfield, S. ; et al.:Ordnungsrahmen für die hybride Wertschöpfung.. In: Thomas, O. ; Nüttgens, M. (eds.): Dienstleistungsmodellierung – Methoden, Werkzeuge und Branchenlösungen. Berlin, Heidelberg : Physica, 2008, pp. 109–128
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Alani, H. ; Staab, S. ; Stumme, G. (eds.):Proceedings of the Dagstuhl Seminar on Social Web Communities : Schloss Dagstuhl, 2008
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Klein, Niklas ; Lau, Sian Lun ; Pirali, Andreas ; Löffler, Tino ; David, Klaus:DAGR-DAG Based Context Reasoning: An Architecture for Context Aware Applications.. In: Proceedings of the 8th International Workshop on Applications and Services in Wireless Networks, ASWN ’08. Kassel, Germany : IEEE, 2008, pp. 20–25
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Pervasive computing includes the vision of small but intelligent devices around us. While the hardware of such devices is available in the market for years,they are still not intelligent in our every day life. For the success of the idea of pervasive computing a unified programming model is needed. Without a standard way of composing intelligent applications for pervasive computing, especially context aware applications to minimize user input, and without standard communication protocols it will take a longtime till before we will see those applications in the market. To establish such standards we first need to be clear of the requirements and how to deal with those requirements in the best way. In this paper we present three important requirements. Moreover we present anew framework DAGR (Directed acyclic graph based context reasoning) to address these requirements.
Krause, Beate ; Schmitz, Christoph ; Hotho, Andreas ; Stumme, Gerd:The Anti-Social Tagger - Detecting Spam in Social Bookmarking Systems.. In: Proc. of the Fourth International Workshop on Adversarial Information Retrieval on the Web, 2008
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Khan, Mohammad Ullah ; Reichle, Roland ; Geihs, Kurt: Architectural Constraints in the Model-Driven Development of Self-Adaptive Applications. In: IEEE Distributed Systems Online (DSOnline) vol. 9 (2008), Nr. 7, pp. 0807-o7001. — link. http://dsonline.computer.org/portal/pages/dsonline/2008/07/o7001.html
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Benz, Dominik ; Grobelnik, Marko ; Hotho, Andreas ; Jäschke, Robert ; Mladenic, Dunja ; Servedio, Vito D. P. ; Sizov, Sergej ; Szomszor, Martin:Analyzing Tag Semantics Across Collaborative Tagging Systems.. In: Alani, H. ; Staab, S. ; Stumme, G. (eds.): Proceedings of the Dagstuhl Seminar on Social Web Communities, 2008
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The objective of our group was to exploit state-of-the-art Information Retrieval methods for finding associations and dependencies between tags, capturing and representing differences in tagging behavior and vocabulary of various folksonomies, with the overall aim to better understand the semantics of tags and the tagging process. Therefore we analyze the semantic content of tags in the Flickr and Delicious folksonomies. We find that: tag context similarity leads to meaningful results in Flickr, despite its narrow folksonomy character; the comparison of tags across Flickr and Delicious shows little semantic overlap, being tags in Flickr associated more to visual aspects rather than technological as it seems to be in Delicious; there are regions in the tag-tag space, provided with the cosine similarity metric, that are characterized by high density; the order of tags inside a post has a semantic relevance.
?: Grunddienste für die Rechtssicherheit elektronischer Kommunikation (2008), pp. 723–728
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Lamla, Jörn:Surfen – Kaufen – Anerkennung suchen: Problemzonen der Handlungsträgerschaft in der virtuellen Alltagsökonomie.. In: Rehberg, K.-S. (ed.): Die Natur der Gesellschaft. Verhandlungen des 33. Kongresses der DGS in Kassel 2006. Frankfurt a.M./ New York : Campus, 2008, pp. 3103–3113
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Roßnagel, Alexander: Verfassungsrechtliche Grenzen polizeili¬cher Kfz-Kennzeichenerfassung. In: Roßnagel, A. (ed.) (2008), Nr. 30, pp. 2547–2551
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Reichle, Roland ; Wagner, Michael ; Khan, Mohammad Ullah ; Geihs, Kurt ; Valla, Massimo ; Fra, Cristina ; Paspallis, Nearchos ; Papadopoulos, George A.:A Context Query Language for Pervasive Computing Environments.. In: 5th IEEE Workshop on Context Modeling and Reasoning (CoMoRea) in conjunction with the 6th IEEE International Conference on Pervasive Computing and Communication (PerCom) : IEEE Computer Society Press, 2008
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Resatsch, F. ; Sandner, U. ; Leimeister, J. M. ; Krcmar, H.: Do point of sale RFID-based information services make a difference? Analyzing consumer perceptions for designing smart product information services in retail business. In: Routledge (ed.) Electronic Markets vol. 18 (2008), Nr. 3, pp. 216–231. — 111 (15-08)
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Jandt, Silke: Grenzenloser Mobile Commerce – Schutzwirkung und Durchsetzbarkeit datenschutzrechtlicher Ansprüche gegenüber ausländischen Diensteanbietern. In: Jandt, S. (ed.) (2008), pp. 664–669
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Jandt, Silke: Vertrauen im Mobile Commerce – Vorschläge für die rechtsverträgliche Gestaltung von Location Based Services. In: Jandt, S. (ed.) (2008)
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Jandt, Silke ; Roßnagel, Alexander: Handlungsleitfaden zum Scannen von Papierdokumenten. In: Roßnagel, S. J. A. (ed.) (2008)
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Leimeister, J. M. ; Schweizer, K. ; Leimeister, S. ; Krcmar, H.:Do virtual communities matter for the social support of patients? Antecedents and effects of virtual relationships in online communities.. In: Information Technology & People (ITP). vol. 21, 2008. — 116 (20-08), pp. 350–374
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Lamla, Jörn ; Böttcher, Thies W.: „Social Net“-Work. Freundschaft als digitale Werbefläche. In: polar. Zeitschrift für politische Philosophie und Kultur (2008), Nr. 5, pp. 32–37
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Cattuto, Ciro ; Benz, Dominik ; Hotho, Andreas ; Stumme, Gerd:Semantic Grounding of Tag Relatedness in Social Bookmarking Systems.. In: Sheth, A. P. ; Staab, S. ; Dean, M. ; Paolucci, M. ; Maynard, D. ; Finin, T. W. ; Thirunarayan, K. (eds.): The Semantic Web -- ISWC 2008, Proc.Intl. Semantic Web Conference 2008, LNAI. vol. 5318. Heidelberg : Springer, 2008, pp. 615–631
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Collaborative tagging systems have nowadays become important data sources for populating semantic web applications. For tasks like synonym detection and discovery of concept hierarchies, many researchers introduced measures of tag similarity. Eventhough most of these measures appear very natural, their design often seems to be rather ad hoc, and the underlying assumptionson the notion of similarity are not made explicit. A more systematic characterization and validation of tag similarity interms of formal representations of knowledge is still lacking. Here we address this issue and analyze several measures oftag similarity: Each measure is computed on data from the social bookmarking system del.icio.us and a semantic grounding isprovided by mapping pairs of similar tags in the folksonomy to pairs of synsets in Wordnet, where we use validated measuresof semantic distance to characterize the semantic relation between the mapped tags. This exposes important features of theinvestigated similarity measures and indicates which ones are better suited in the context of a given semantic application.
Leimeister, J. M. ; Klapdor, S. ; Hörmann, C. ; Krcmar, H.:IT Management in deutschen Krankenhäusern - Eine empirische Untersuchung unter IT-Entscheidern. 2. ed.. Norderstedt, Germany : Books on Demand Verlag, ISBN: 978-3837047271, 2008
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Leimeister, J. M. ; Glauner, C.: Hybride Produkte - Einordnung und Herausforderungen für die Wirtschaftsinformatik. In: Vieweg (ed.) Wirtschaftsinformatik vol. 50 (2008), Nr. 3, pp. 248–251
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Leimeister, J. M. ; Esch, S. ; Knebel, U.:Systematisches Design Hybrider Produkte - Lösungsentwicklung im Projekt SPRINT.. In: Gatermann, I. ; Fleck, M. (eds.): Technologie und Dienstleistung - Innovationen in Forschung, Wissenschaft und Unternehmen : Campus, 2008
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Roßnagel, Alexander: Bunsho Henkan no Horitsumondai (Rechtsprobleme der Transformation von Dokumenten, ins Japanische übersetzt von Yonemaru, T.). In: Roßnagel, A. (ed.) (2008), pp. 31–63
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Roßnagel, Alexander: Informationelles Vertrauen für die Informationsgesellschaft (2008)
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Roßnagel, Alexander: Kennzeichenscanning – Verfassungsrechtliche Bewertung der verdachtslosen automatisierten Erfassung von Kraftfahrzeugkennzeichen. In: Roßnagel, A. (ed.) (2008)
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Reichle, Roland ; Khan, Mohammad Ullah ; Geihs, Kurt: How to Combine Parameter and Compositional Adaptation in the Modeling of Self-Adaptive Applications. In: PIK vol. 31 (2008) (2008), Nr. 1, pp. 34–38
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Roßnagel, Alexander: Rechtswissenschaftliche Gestaltung der Informationstechnik. In: Roßnagel, A. (ed.) (2008), pp. 381–390
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Roßnagel, Alexander: Verdachtslose automatisierte Erfassung von Kfz-Kennzeichen. In: Roßnagel, A. (ed.) (2008), pp. 61–65
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Roßnagel, Alexander: Fremderzeugung von qualifizierten Signaturen?. In: Roßnagel, A. (ed.) (2008), pp. 24–30
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Roßnagel, Alexander: Sichere und verbindliche Aufgabendelegation auf Assistenzsysteme – am Beispiel E-Government und E-Tourismus. In: Roßnagel, J. P. A. (ed.) (2008)
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Leimeister, J. M.:Hybride Wertschöpfung in der Gesundheitswirtschaft.. In: Kumulative Habilitationsschrift, Technische Universität München. München, Germany, 2008
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Roßnagel, Alexander: Fremderzeugung von qualifizierten Signaturen? -- Ein neues Geschäftsmodell und seine Rechtsfolgen. In: Multimedia und Recht (MMR) vol. 11. Jg. Heft 1 (2008), pp. 24–30
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Roßnagel, Alexander: Digitale Visionen – zur Gestaltung allgegenwärtiger Informationstechnologien. In: Winand, A. R. S. (ed.) (2008)
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Roßnagel, Alexander:Selbst- oder Fremdbestimmung -- die Zukunft des Datenschutzes.. In: : Roßnagel, A./Sommerlatte, T./Winand, U. (Hrsg.), Digitale Visionen -- Zur Gestaltung allgegenwärtiger Informationstechnologien, Berlin 2008, 2008, pp. 123–163
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Roßnagel, Alexander: Handlungsleitfaden zum Scannen von Papierdokumenten. In: Roßnagel, A. (ed.) (2008)
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Roßnagel, Alexander: Rundfunk-Perspektiven - Festschrift für Fritz Raff. In: Roßnagel, A. (ed.) (2008)
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Bretschneider, U. ; Huber, M. ; Leimeister, J. M. ; Krcmar, H.:Community for innovations: Developing an integrated concept for open innovation.. In: International Federation for Information Processing (IFIP) 2008. Berlin, Germany, 2008. — 109 (13-08)
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Bretschneider, U. ; Glaschick, R. ; Gräfe, G.:Ratgeber für die Veröffentlichung von Open-Source-Software durch eine Hochschule.. In: Asche, M. ; Bauhaus, W. ; Mitschke, E. ; Seel, B. B. (eds.): Open Source: Kommerzialisierungsmöglichkeiten und Chancen für die Zusammenarbeit von Hochschulen und Unternehmen. Münster, Germany : Waxmann, 2008, pp. 167–188
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Roßnagel, Alexander ; Fischer-Dieskau, Stefanie ; Jandt, Silke ; Wilke, Daniel:Scannen von Papierdokumenten -- Anforderungen, Trends und Empfehlungen : Schriftenreihe "Der elektronische Rechtsverkehr", Band 18, Nomos Verlag, Baden-Baden 2008, 2008
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Reichle, Roland ; Wagner, Michael ; Khan, Mohammad Ullah ; Geihs, Kurt ; Lorenzo, Jorge ; Valla, Massimo ; Fra, Cristina ; Paspallis, Nearchos ; et al.:A Comprehensive Context Modeling Framework for Pervasive Computing Systems.. In: 8th IFIP International Conference on Distributed Applications and Interoperable Systems (DAIS) : Springer, 2008
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Leimeister, S. ; Leimeister, J. M. ; Fähling, J. ; Krcmar, H.:Exploring success factors for IT carve out projects.. In: European Conference on Information Systems (ECIS) 2008. vol. 16. Galway, Ireland : European Conference on Information Systems, 2008. — 106 (10-08)
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Lau, Sian Lun ; Klein, Niklas ; Pirali, Andreas ; Koenig, Immanuel ; Droegehorn, Olaf ; David, Klaus:Making Service Creation for (Almost) Everyone.. In: ICT-Mobile Summit 2008. Stockholm, 2008
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Opfer, Stephan ; Triller, Stefan ; Scheuermann, Stephan ; Amma, Till ; Blumenstein, Michael ; Glogic, Ilhan:1st Kassel Student Workshop on Security in Distributed Systems (Seminar Sicherheit in verteilten Systemen) ( Nr. 2008, 1) : University of Kassel, 2008. — Thomas Weise, Philipp Baer, eds. online version
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Hackel, Siegfried ; Roßnagel, Alexander: Aufbewahrung elektronischer Dokumente. In: Roßnagel, S. H. A. (ed.) (2008), pp. 199–207
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Mauro, C. ; Sunyaev, A. ; Leimeister, J. M. ; Schweiger, A. ; Krcmar, H.:A proposed solution for managing doctor’s smart cards in hospitals using a single sign-on central architecture.. In: Hawai’i International Conference on System Sciences (HICSS) 2008. Big Island, Hawaii, 2008. — 100 (04-08)
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Gitter, Rotraud: Long-term retention in e-voting – Legal requirements and technical implementation, in: Krimmer, R./Grimm. In: Gitter, R. (ed.) (2008)
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Gitter, Rotraud: Die Haftung der Betreiber von Web 2.0-Plattformen. In: Gitter, R. (ed.) (2008), pp. 279–286
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Mauro, C. ; Leimeister, J. M. ; Sunyaev, A. ; Krcmar, H.: Zentrale Verwaltung von Gesundheitskarten im stationären Krankenhausumfeld. In: Wirtschaftsinformatik vol. 50, Vieweg (2008), Nr. 6, pp. 489–499. — 115 (19-08)
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Nicolescu, V. ; Leimeister, J. M. ; Krcmar, H.:Konzeption einer avatarbasierten Benutzerschnittstelle für Dienste im Fahrzeug.. In: Bichler, M. ; Hess, T. ; Krcmar, H. ; Lechner, U. ; Matthes, F. ; Picot, A. ; Speitkamp, B. ; Wolf, P. (eds.): Proceedings of Multikonferenz Wirtschaftsinformatik 2008 (MKWI 2008) : Gito, 2008
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Nicolescu, V. ; Leimeister, J. M. ; Krcmar, H.:Konzeption einer avaterbasierten Benutzerschnittstelle für Dienste im Fahrzeug.. In: Multikonferenz Wirtschaftsinformatik (MKWI 2008). München, Germany, 2008. — 118 (22-08)
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Geihs, Kurt ; Barone, Paolo ; Eliassen, Frank ; Floch, Jacqueline ; Fricke, Rolf ; Gjørven, Eli ; Hallsteinsen, S. ; Horn, Geir ; et al.: A Comprehensive Solution for Application-Level Adaptation. In: Software Practice & Experience (2008). — accepted for publication
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Geihs, Kurt ; Baer, Philipp A. ; Reichle, Roland ; Wollenhaupt, Jens: Ontology-based Automatic Model Transformations. In: Sixth IEEE International Conference on Software Engineering and Formal Methods (SEFM 2008) (2008)
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Geihs, Kurt:Vom Dienstgüte-Management zu Selbst-Adaptiven Systemen.. In: von Kortzfleisch, O. (ed.): Wissen, Vernetzung, Virtualisierung (Liber amicorum für Prof. Dr. Udo Winand) : Josef Eul Verlag, 2008, pp. 477–489
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Geihs, Kurt: Selbst-Adaptive Software. In: Informatik-Spektrum vol. 31 (2008), Nr. 2, pp. 133–145. — (in German)
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Hoffmann, H. ; Leimeister, J. M. ; Krcmar, H.:Anforderungen an Werkzeuge zum Prototyping von Automotive Services.. In: Bichler, M. ; Hess, T. ; Krcmar, H. ; Lechner, U. ; Matthes, F. ; Picot, A. ; Speitkamp, B. ; Wolf, P. (eds.): Multikonferenz Wirtschaftsinformatik (MKWI) 2008. München, Germany : Gito, 2008
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Hornung, Gerrit: Besprechung von BGH, Beschluss vom 15.7.2008. In: Hornung, G. (ed.) (2008), pp. 668–669
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Hornung, Gerrit: Ein neues Grundrecht – der verfas¬sungsrechtliche Schutz der „Vertraulichkeit und Integrität informationstechnischer Systeme“. In: Hornung, G. (ed.) (2008)
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Leimeister, S. ; Leimeister, J. M. ; Krcmar, H.:Erfolgsfaktoren für die systematische Durchführung von IT Carve Outs - Eine explorative Untersuchung.. In: Proceedings of Multikonferenz Wirtschaftsinformatik (MKWI). München : Gito, 2008, pp. 627–638
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Hornung, Gerrit: Datenschutz im Gefüge der Grundrechte und ihrem gesellschaftlichen Wandel, in: Gaycken, S./Kurz, C.. In: Hornung, G. (ed.) (2008)
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Ebner, W. ; Leimeister, J. M. ; Bretschneider, U. ; Krcmar, H.:Leveraging the wisdom of crowds: Designing an IT-supported ideas competition for an ERP software company.. In: Hawai’i International Conference on System Sciences (HICSS) 2008. Big Island, Hawaii, 2008. — 98 (02-08)
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Hornung, Gerrit: Besprechung von BGH, Beschluss vom 14.1.2008. In: Hornung, G. (ed.) (2008)
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Park, M. ; Serefoglou, S. ; Schmidt, L. ; Radermacher, K. ; Schlick, C. ; Luczak, H.: Hand-Eye Coordination Using a Video See-Through Augmented Reality System. In: The Ergonomics Open Journal vol. 1 (2008), pp. 46–53
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The paper describes two experiments for investigating the influence of different levels of camera displacement on hand-eye coordination while using a video see-through head-mounted display. During the first experiment 15 camera positions with five levels of height displacement and three levels of depth displacement were compared in four different tasks. Using a two-way ANOVA the comparison of the calculated performance characteristic values showed significant influence of height displacement on hand-eye coordination. In conclusion cameras should be placed above or below eye level, but by no more than 35 mm, in order to preserve hand-eye coordination. In the second experiment, a mirror system was used to check hand-eye coordination in an exemplary medical task allowing the cameras to be placed virtually at eye level. A significant decrease in accuracy was found while using the head-mounted display compared to direct view. Finally, the mirror system was compared to the 15 camera positions using the data from the same tasks. Significant differences in performance were found between the mirror system and eye level position as well as the position slightly below eye level. The results of the experiment provide design recommendations for developers and users of video see-through systems.
Hornung, Gerrit: Rezension von Borchers, Die Einführung des elektronischen Gesundheitskarte in das deutsche Gesundheitswesen. In: Hornung, G. (ed.) (2008)
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Hornung, Gerrit: Systems and Data Protection Legislation in Germany (2008), pp. 1088–1093
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Hornung, Gerrit: Datenschutz im Gefüge der Grundrechte und ihrem gesellschaftlichen Wandel, in: Gaycken. In: Hornung, G. (ed.) (2008), pp. 249–264
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Hornung, Gerrit: Besprechung von OLG Frankfurt, Urteil vom 1.7.2008. In: Hornung, G. (ed.) (2008), pp. 585–586
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Hornung, Gerrit: Buchbesprechung von Puschke, Jens: Die kumulative Anordnung von Informationsbeschaffungsmaßnahmen im Rahmen der Strafverfolgung. In: Hornung, G. (ed.) (2008)
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Hornung, Gerrit ; Roßnagel, Alexander: Forschung à la Card? Grenzen und Vorschläge für eine Nutzung der elektronischen Gesundheitskarte zur medizinischen Forschung. In: Roßnagel, G. H. A. (ed.) (2008), Nr. 9, pp. 538–543
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Link, D. ; Tietze, H. ; Schmidt, L. ; Sievert, A. ; Gorges, W. ; Leyk, D.:Berührungslose Augen- und Blickbewegungsmessung.. In: Schmidt, L. ; Schlick, C. M. ; Grosche, J. (eds.): Ergonomie und Mensch-Maschine-Systeme. Berlin : Springer, 2008, pp. 371–391
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Für die Untersuchung ergonomischer Fragestellungen bietet sich der Einsatz berührungsloser Blickerfassungssysteme an. Am FGAN Forschungsinstitut für Kommunikation, Informationsverarbeitung und Ergonomie wird zurzeit das System SmartEye Pro verwendet, um Kopfstellung, Blickrichtung und Bewegungen des Augenlides von Probanden in Echtzeit zu erfassen. In zwei Vorstudien wurden die Auswirkung verschiedener Kalibrierungseinstellungen auf die Trackingqualität und die Qualität der Messung von Sakkaden und Fixationen evaluiert. Es zeigte sich, dass das System geeignet ist, statistische Aussagen in Bezug auf Blickbewegungen und Lidschlussverhalten zu generieren. Jedoch ist die Bestimmung von Sakkaden- und Fixationsparametern nur eingeschränkt möglich. Unter Berücksichtigung dieser Restriktionen wird das System zurzeit in einem Verbundforschungsprojekt mit der Deutschen Sporthochschule Köln und dem Zentralen Institut des Sanitätsdienstes der Bundeswehr Koblenz zur Erfassung der psycho-physiologische Leistungsfähigkeit von Soldaten verwendet.
Droegehorn, Olaf ; Lau, Sian Lun ; Klein, Niklas ; Koenig, Immanuel ; Porras, Jari: Service creation for end-users. In: Personal, Indoor and Mobile Radio Communications, 2008. PIMRC 2008. IEEE 19th International Symposium on (2008), pp. 1–5
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The current computing and communication services are driven by various technologies. The creation of such services is however not an easy task. The different platforms lack openness that simplifies interoperability. Service development is still mainly technical oriented, where service creation tools are meant for serving and assisting the professional developers. Service creation is not seen as a task for end users right now. In this paper we will discuss how end users could be enabled to create new services, shown on the example within a mobile context-aware service platform. This is achieved by introducing the concept of the technology agnostic approach into the process. We present the conceptual architecture and explain the idea of end-user driven service creation that can provide a solution. Several tools were designed and implemented to prove that the concepts work. With the help of semantic service description, the end users can express their service wishes and create services using a graphical interface technology agnostically. The idea was implemented in two European projects and we have identified the next steps to improve the prototypes as well as the idea. Based on several tools and an underlying platform the ideas have been tested in a development environment for mobile context-aware services. Here end-users are able to design their own services or combine existing services, which can be shared and used by other users later on.
Jahner, S. ; Leimeister, J. M. ; Knebel, U. ; Krcmar, H.:A cross-cultural comparison of preceived strategic importance of RFID for CIOs in Germany and Italy.. In: Proceedings of the 41st Annual Hawaii International Conference on System Sciences (HICSS 2008). Big Island, USA, 2008. — 117 (21-08)
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Lau, Sian Lun ; Klein, Niklas ; Pirali, Andreas ; König, Immanuel ; Drögehorn, Olaf ; David, Klaus:Making Service Creation for (Almost) Everyone.. In: Cunningham, P. ; Cunningham, M. (eds.): ICT-MobileSummit. Stockholm, Sweden : International Information Management Corporation, 2008, pp. 1–8
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The current computing and communication services are driven by various technologies. The creation of such services is however not an easy task. The different platforms lack of openness that simplifies interoperability. Service developments are still mainly technical oriented, where service creation tools are meant for serving and assisting the professional developers. Service creation is not seen as a task for the end users. In our projects we wish to enable service creation for the end users. This is achieved by introducing the concept of the technology agnostic approach into the process. We present the conceptual architecture and explain the idea that can provide a solution. Several tools were designed and implemented to prove that the concepts work. With the help of semantic service description, the end users can express their service wishes and create services using a graphical interface technology agnostically. The service platform will search for the desired service functionalities and execute them. The idea was implemented in two European projects and we have identified the next steps to improve the prototypes as well as the idea.
Cattuto, Ciro ; Benz, Dominik ; Hotho, Andreas ; Stumme, Gerd:Semantic Analysis of Tag Similarity Measures in Collaborative Tagging Systems.. In: Proceedings of the 3rd Workshop on Ontology Learning and Population (OLP3). Patras, Greece, 2008. — ISBN 978-960-89282-6-8 — ISBN 978-960-89282-6-8, pp. 39–43
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Social bookmarking systems allow users to organise collections of resources on the Web in a collaborative fashion. The increasing popularity of these systems as well as first insights into their emergent semantics have made them relevant to disciplines like knowledge extraction and ontology learning. The problem of devising methods to measure the semantic relatedness between tags and characterizing it semantically is still largely open. Here we analyze three measures of tag relatedness: tag co-occurrence, cosine similarity of co-occurrence distributions, and FolkRank, an adaptation of the PageRank algorithm to folksonomies. Each measure is computed on tags from a large-scale dataset crawled from the social bookmarking system del.icio.us. To provide a semantic grounding of our findings, a connection to WordNet (a semantic lexicon for the English language) is established by mapping tags into synonym sets of WordNet, and applying there well-known metrics of semantic similarity. Our results clearly expose different characteristics of the selected measures of relatedness, making them applicable to different subtasks of knowledge extraction such as synonym detection or discovery of concept hierarchies.
Roßnagel, Alexander ; Hackel, Siegfried:Langfristige Aufbewahrung elektronischer Dokumente.. In: : Alexander Roßnagel/Siegfried Hackel, 2008, pp. 199–207
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Bohl, O. ; Manouchehri, S. ; Winand, U.: Designing private e- and m-services. In: Brehmer, P. O. ; Lindskog, H. (eds.) International Journal of Knowledge Management Studies (IJKMS), Special Issue on Information Technology and Telecommunications Services - Knowledge, Technology and Organisational Changes vol. 2 (2008), Nr. 1, pp. 64–79
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Bohl, O. ; Höfer, A. ; Manouchehri, S. ; Winand, U.:Alltagstauglichkeit im Kontext der Migration von Anwendungssystemen.. In: Bichler, M. ; Hess, T. ; Krcmar, H. ; Lechner, U. ; Matthes, F. ; Picot, A. ; Speitkamp, B. ; Wolf, P. (eds.): Multikonferenz Wirtschaftsinformatik. Berlin : Gito-Verlag, 2008, pp. 3–4
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Bohl, O. ; Manouchehri, S.:Vertrauensaspekte beim Einsatz von Social Software.. In: von Kortzfleisch, H. F. O. ; Bohl, O. (eds.): Wissen, Vernetzung, Virtualisierung. Lohmar/Köln : Eul Verlag, 2008, pp. 449–460
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Bohnet-Joschko, S. ; Bretschneider, U.: Coping with Chronic Illness Online: The Case of Patients’ Internet Communities For Diabetes Mellitus and Multiple Sclerosis. In: The Electronic Journal for Virtual Organizations and Networks (eJOV) vol. 10 (2008), Nr. 2, pp. 1–7
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Jäschke, Robert ; Marinho, Leandro ; Hotho, Andreas ; Schmidt-Thieme, Lars ; Stumme, Gerd: Tag Recommendations in Social Bookmarking Systems. In: Giunchiglia, E. (ed.) AI Communications vol. 21. Amsterdam, IOS Press (2008), Nr. 4, pp. 231–247
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Collaborative tagging systems allow users to assign keywords - so called "tags" - to resources. Tags are used for navigation, finding resources and serendipitous browsing and thus provide an immediate benefit for users. These systems usually include tag recommendation mechanisms easing the process of finding good tags for a resource, but also consolidating the tag vocabulary across users. In practice, however, only very basic recommendation strategies are applied. In this paper we evaluate and compare several recommendation algorithms on large-scale real life datasets: an adaptation of user-based collaborative filtering, a graph-based recommender built on top of the FolkRank algorithm, and simple methods based on counting tag occurences. We show that both FolkRank and Collaborative Filtering provide better results than non-personalized baseline methods. Moreover, since methods based on counting tag occurrences are computationally cheap, and thus usually preferable for real time scenarios, we discuss simple approaches for improving the performance of such methods. We show, how a simple recommender based on counting tags from users and resources can perform almost as good as the best recommender.
Jäschke, Robert ; Krause, Beate ; Hotho, Andreas ; Stumme, Gerd:Logsonomy -- A Search Engine Folksonomy.. In: Proceedings of the Second International Conference on Weblogs and Social Media(ICWSM 2008) : AAAI Press, 2008
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In social bookmarking systems users describe bookmarks by keywords called tags. The structure behind these social systems, called folksonomies, can be viewed as a tripartite hypergraph of user, tag and resource nodes. This underlying network shows specific structural properties that explain its growth and the possibility of serendipitous exploration. Search engines filter the vast information of the web. Queries describe a user’s information need. In response to the displayed results of the search engine, users click on the links of the result page as they expect the answer to be of relevance. The clickdata can be represented as a folksonomy in which queries are descriptions of clicked URLs. This poster analyzes the topological characteristics of the resulting tripartite hypergraph of queries, users and bookmarks of two query logs and compares it two a snapshot of the folksonomy del.icio.us.
Lanzinner, S. ; Leimeister, J. M. ; Krcmar, H.:Toward IT Value Mapping - An Approach to Value-Based IT Management.. In: Americas Conference on Information Systems (AMCIS) 2008. Toronto, Canada, 2008
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Roßnagel, Alexander ; Hornung, Gerrit ; Schnabel, Christoph: Die Authentisierungsfunktion des elektronischen Personalausweises aus datenschutzrechtlicher Sicht. In: Datenschutz und Datensicherheit (DuD) vol. 32. Jg. Heft 3 (2008), pp. 168–172
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Jäschke, Robert ; Hotho, Andreas ; Schmitz, Christoph ; Ganter, Bernhard ; Stumme, Gerd: Discovering Shared Conceptualizations in Folksonomies. In: Journal of Web Semantics vol. 6 (2008), Nr. 1, pp. 38–53
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Roßnagel, Alexander ; Schnabel, Christoph: Das Grundrecht auf Gewährleistung der Vertraulichkeit und Integrität informationstechnischer Systeme und sein Einfluss auf das Privatrecht. In: Neue Juristische Wochenschrift (NJW) vol. 61. Jg. Heft 49 (2008), pp. 3534–3538
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Ebner, W. ; Bretschneider, U. ; Leimeister, J. M. ; Krcmar, H.:Virtual communities for innovations: Users’ requirements for the development of an academic SAP user group.. In: Hawai’i International Conference on System Sciences (HICSS) 2008. Big Island, Hawaii, 2008. — 97 (01-08)
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2007[ to top ]

Hornung, Gerrit:Reisepässe mit Biometrie und RFID-Chips - Bausteine einer neuen Identifizierungsinfrastruktur?. In: Zurawski, N. (ed.): , 2007, pp. 139–158
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Bohl, O. ; Manouchehri, S. ; Winand, U.: Unternehmerische Wertschöpfung im Kontext des Web 2.0. In: Beck, A. ; Mörike, M. ; Sauerburger, H. (eds.) Web 2.0. HMD Praxis der Wirtschaftsinformatik, dpunkt.verlag (2007), Nr. 255, pp. 27–36
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Hornung, Gerrit: Die Haftung von W-LAN Betreibern. Neue Gefahren für Anschlussinhaber - und die Idee "offener" Netze. In: Computer und Recht (2007), pp. 88–94
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Bohl, O. ; Manouchehri, S. ; Winand, U.: Mobile information systems for the private everyday life. In: Mobile Information Systems. Special Issue: Improving Quality of Service in Mobile Information Systems, Services and Networks vol. 3 (2007), Nr. 3-4, pp. 135–152
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Hornung, Gerrit: Anmerkung zu BGH, B. v. 25.11.2006 - 1 BGs 184/2006 - (Keine Rechtsgrundlage für heimliche Ausforschung von Computern). In: Computer und Recht (2007), p. 144
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Hornung, Gerrit: Die DNA-Analyse nach den Änderungen der Strafprozessordnung -- Speicherung bis auf Widerruf?. In: Strafverteidiger 2007 (2007), p. 164. — (zusammen mit N. Bergemann)
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Hornung, Gerrit: The European Regulation on Biometric Passports: Legislative Procedures, Political Interactions, Legal Framework and Technical Safeguards. In: SCRIPT-ed (2007), pp. 246–262
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Kaufmann, Ulrich ; Reichle, Roland ; Hoppe, Christof ; Baer, Philipp A.:An Unsupervised Approach for Adaptive Color Segmentation.. In: International Workshop on Robot Vision, VISAPP 2007, 2007. — accepted
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Jäschke, Robert ; Marinho, Leandro Balby ; Hotho, Andreas ; Schmidt-Thieme, Lars ; Stumme, Gerd:Tag Recommendations in Folksonomies.. In: Kok, J. N. ; Koronacki, J. ; de Mántaras, R. L. ; Matwin, S. ; Mladenic, D. ; Skowron, A. (eds.): Knowledge Discovery in Databases: PKDD 2007, 11th European Conference on Principles and Practice of Knowledge Discovery in Databases, Lecture Notes in Computer Science. vol. 4702. Berlin, Heidelberg : Springer, 2007 — ISBN 978-3-540-74975-2, pp. 506–514
- [ Abstract ]
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Collaborative tagging systems allow users to assign keywords—so called “tags”—to resources. Tags are used for navigation, finding resources and serendipitous browsing and thus provide an immediate benefit for users. These systems usually include tag recommendation mechanisms easing the process of finding good tags for a resource, but also consolidating the tag vocabulary across users. In practice, however, only very basic recommendation strategies are applied. In this paper we evaluate and compare two recommendation algorithms on largescale real life datasets: an adaptation of user-based collaborative filtering and a graph-based recommender built on top of FolkRank. We show that both provide better results than non-personalized baseline methods. Especially the graph-based recommender outperforms existing methods considerably.
Knebel, U. ; Leimeister, J. M. ; Krcmar, H.:Personal Mobile Sports Companion: Design and Evaluation of IT-Supported Product-Service-Bundles in the Sports Industry.. In: Österle, H. ; Schelp, J. ; Winter, R. (eds.): European Conference on Information Systems (ECIS). St. Gallen, 2007, pp. 81–92
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Hornung, Gerrit: Fingerabdrücke statt Doktortitel: Paradigmenwechsel im Passrecht. In: DuD 2007 (2007), pp. 181–185
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Dannecker, A. ; Rajagopalan, B. ; Leimeister, J. M. ; Konana, P.:Towards a research agenda for virtual communities.. In: Proceedings of the Americas Conference on Information Systems (AMCIS 2007). Keystone,USA, 2007
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Hornung, Gerrit:Rechtsgrundlage für den biometrischen Reisepass: Das Gesetz zur Änderung des Passgesetzes und weiterer Vorschriften vom 24. Mai 2007.. In: Brömme, A. ; Busch, C. ; Hühnlein, D. (eds.): : BIOSIG 2007: Biometrics and Electronic Signatures. Proceedings of the Special Interest Group on Biometrics and Electronic Signatures, 12.-13. July 2007, Bonn 2007, 2007
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Bohl, O. ; Manouchehri, S. ; Ammermueller, S. ; Gerstheimer, O.:Mobile social software - Potentials and limitations of enabling social networking.. In: Archer, N. ; Hassanein, K. ; Yufei, Y. (eds.): The Sixth International Conference on on the Management of Mobile Business. Proceedings of ICMB 2007, CD-Rom. Toronto, 2007
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Bohl, O. ; Manouchehri, S. ; Ammermueller, S. ; Gerstheimer, O.:Migration of mobile social networks.. In: Isaías, P. ; Nunes, M. B. ; Barroso, J. (eds.): Proceedings of the IADIS International Conference, WWW/Internet 2007. vol. 2. Vial Real, Portugal, 2007, pp. 138–143
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Baer, Philipp A. ; Reichle, Roland:Communication and Collaboration in Heterogeneous Teams of Soccer Robots.. In: : I-Tech Education and Publishing, Vienna, Austria, 2007, pp. 1–28
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Coutand, Oliver ; Haseloff, Sandra ; David, Klaus:Dealing with Application-specific Knowledge in Context-Aware Systems.. In: 2007 ITG-GI Conference on Communication in Distributed Systems, KiVS. Bern, Switzerland : VDE Verlag, 2007, pp. 1–12
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Context-aware applications provide users with information and services, personalized according to the user's context. They are supported by context-aware systems that gather sensor data and build context representations. Then applications use context to adapt their behaviors. But performing adaptation in context-aware systems offers advantages to fulfill the vision of a pervasive computing environment, where users interact with various context-aware applications. It ensures the privacy of user data stored in a central user model that is used to serve several applications. However, adaptation differs for different applications and is governed by application-specific knowledge. This knowledge must be communicated to the systems. In this paper, we present three types of knowledge 1) the description of the application behaviors 2) the context elements, describing the context information relevant for adapting the application and 3) the adaptation knowledge required to infer the adaptation. Also we present examples of the three templates, considering an application we developed, the Call Profile Manager.
Knebel, U. ; Leimeister, J. M. ; Krcmar, H.:Wahrgenommene strategische Bedeutung von RFID aus Sicht von IT-Entscheidern in Deutschland - Eine empirische Analyse.. In: Wirtschaftsinformatik 2007. vol. 1. Karlsruhe : Universitätsverlag Karlsruhe, 2007, pp. 89–106
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Resatsch, F. ; Sandner, U. ; Höchst, C. ; Michelis, D. ; Schildhauer, T. ; Leimeister, J. M. ; Krcmar, H.:Easymeeting - Prototyping ubiquitous computing in offices. Innsbruck, Austria, 2007
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David, Klaus:System concept and Service Architecture in pervasive environments based on WWRF Requirements.. In: 4th IEEE Internatilonal Symposium on Wireless Communication Systems. Trondheim, Norway : IEEE, 2007, pp. 375–379
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The vision of pervasive computing and communication is likely to have a major impact on our lives. The WWRF (Wireless World Research Forum) has summarized this vision by the statement: "7 trillion wireless devices serving 7 billion people by 2017". Following this vision, the goal for new business sectors will be to provide an easy way of creating and deploying different kinds of service environments. This paper introduces the overall system vision with an emphasis on the requirements on and the problem of overall architectures for service execution environments and identifies an architectural approach, the requirements and design guidelines to built service execution environments and related platforms. A special focus will be given on the subjects of context awareness and personalization.
Jaeschke, Robert ; Marinho, Leandro ; Hotho, Andreas ; Schmidt-Thieme, Lars ; Stumme, Gerd:Tag Recommendations in Folksonomies.. In: Hinneburg, A. (ed.): Workshop Proceedings of Lernen - Wissensentdeckung - Adaptivität (LWA 2007) : Martin-Luther-Universität Halle-Wittenberg, 2007 — ISBN 978-3-86010-907-6, pp. 13–20
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David, Klaus ; Drogehorn, Olaf ; Klemettinen, Mika:Invited Talk: Solutions for a Service Architecture in Pervasive Environments Based on WWRF WG2 Requirements.. In: SAINT-W ’07: Proceedings of the 2007 International Symposium on Applications and the Internet Workshops. Washington, DC, USA : IEEE Computer Society, 2007 — ISBN 0-7695-2757-4, p. 9
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David, Klaus ; Drögehorn, Olaf ; Klemettinen, Mika:Invited Paper: Solutions for a Service Architecture in Pervasive Environments Based on WWRF WG2 Requirements.. In: International Symposium on Applications and the Internet Workshops, SAINT Workshops 2007. Hiroshima, Japan : IEEE, 2007, pp. 1–6
- [ Abstract ]
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- [ DOI ]
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The vision of pervasive computing and communication is likely to have a major impact on our lives. The WWRF (Wireless World Research Forum) has summarized this vision by the statement: "7 trillion wireless devices serving 7 billion people by 2017". Following this vision, the goal for new business sectors will be to provide an easy way of creating and deploying different kinds of service environments. This paper introduces the requirements on and the problem of overall architectures for service execution environments and identifies an architectural approach, the requirements and design guidelines to built service execution environments and related platforms. The concepts presented in this paper have partly been developed by the Wireless World Research Forum (WWRF) Working Group 2 (WG2) and are under ongoing discussion.
Lamla, Jörn:Konsumpraktiken in der virtuellen Alltagsökonomie. Forschungsde-sign und exemplarische Fallskizze.. In: Buber, R. ; Holzmüller, H. (eds.): Qualitative Marktforschung. Konzepte – Methoden – Analysen. Zweite.. Wiesbaden : Gabler, 2007, pp. 779–803
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Roßnagel, Alexander ; Schnellenbach-Held, Martina ; Geibig, Oliver ; Paul, Sandra:Rechtssichere agentenbasierte Vergabeverfahren -- Am Beispiel von Vergabeverfahren für Bauleistungen : Schriftenreihe "Der elektronische Rechtsverkehr", Band 15, Nomos Verlag, Baden-Baden 2007, 2007
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Kumbruck, Christel ; Sacher, Markus ; Stumpf, Frederic: Vertrauen(skapseln) beim Online-Einkau. In: Datenschutz und Datensicherheit (DuD) (2007), pp. 362–366
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Khan, Mohammad Ullah ; Reichle, Roland ; Geihs, Kurt:Applying Architectural Constraints in the Modeling of Self-adaptive Component-based Applications.. In: Model-Driven Software Adaptation (M-ADAPT’07) at The European Conference on Object-Oriented Programming (ecoop07). vol. 1, 2007, pp. 13–22
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Bohl, O. ; Manouchehri, S. ; Winand, U.:Migration as a promising approach for designing innovative services.. In: Al-Dahoud, A. (Ed.): The 3rd International Conference on Information Technology. Proceedings of ICIT 2007, Amman, CD-Rom. vol. 3, 2007
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Schweiger, A. ; Leimeister, J. M. ; Krcmar, H.:Auf dem Weg zur integrierten Versorgungim Gesundheitswesen am Beispiel Krankenhaus: Parallelen aus Sicht der Wirtschaftsinformatik.. In: Bohnet-Joschko, S. (ed.): Wissensmanagement im Krankenhaus : DUV Gabler Edition Wissenschaft, 2007, pp. 97–110
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Hotho, Andreas ; Stumme, Gerd: Mining the World Wide Web --- Methods, Applications, and Perspectives. In: Hotho, A. ; Stumme, G. (eds.) Künstliche Intelligenz (2007), Nr. 3, pp. 5–8
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Schweiger, A. ; Sunyaev, A. ; Leimeister, J. M. ; Krcmar, H.: Information Systems and Healthcare XX: Toward Seamless Healthcare with Software Agents. In: Communications of the Association for Information Systems (CAIS) vol. 19 (2007), pp. 692–709
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Sandner, U. ; Leimeister, J. M. ; Kern, E. M. ; Krcmar, H.:A framework for conceptual case studies for RFID-based B2C-solutions.. In: Blecker, T. ; Huang, G. (eds.): Handbook of Radio Frequency Identification (RFID) - Technologies in Operations and Supply Chain Management : E. Schmidt-Verlag, 2007
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Piao, Guihua ; David, Klaus:MXRRM for WIMAX Integrated to GSM and UMTS Heterogeneous Networks.. In: 2007 IEEE 65th Vehicular Technology Conference (VTC-Spring). Dublin, Ireland : IEEE, 2007, pp. 768–773
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Multi-standard radio resource management (MxRRM), based on a user data rate optimised algorithm, is studied for non-real-time (NRT) services in a heterogeneous WiMAX/UMTS/GSM scenario. This algorithm utilises a parameter, namely NRT load information, which is mapped from the average user throughput in a respective network. The performance level of MxRRM is assessed through a network simulator. A WiMAX cell covers a hotspot area in the co-located GSM/EDGE and UMTS/HSDPA networks. The load redistribution, the mean data rate and the intersystem handover activity are investigated in three scenarios: a) completely separate systems, b) separate WiMAX and MxRRM for GSM and UMTS, and c) MxRRM for these three radio access networks. An additional preliminary default access network selection utilises the network's knowledge about the capacity variety and the load status of the heterogeneous networks. Simulation results have shown a promising gain of mean data rate and a significant reduction of intersystem handover rate.
Hornung, Gerrit: Anmerkung zu OGH (Österreich), Beschluss v. 20. 12. 2006 -- 90bA 109/06d (Biometrische Ar-beitszeiterfassung als Beeinträchtigung der Menschenwürde). In: Arbeit und Recht 2007, 398 -- 401 (2007), pp. 398–401
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Piao, Guihua ; David, Klaus:Multi-Standard Radio Resource Management for Integrated Voice and Data Services.. In: 2007 IEEE 65th Vehicular Technology Conference (VTC-Spring). Dublin, Ireland : IEEE, 2007, pp. 990–995
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With the successful deployment of various radio access networks, multi-radio access has become an important research topic for heterogeneous wireless networks. This paper presents several multi-standard radio resource management strategies for integrated voice and data services. The input parameters as well as the availability of overflow at call setup stage and intersystem handover during call connection stage differentiate these strategies from each other. The heterogeneous networks capacity of integrated services is investigated via simulations modelling the stochastic traffic, mobility, and technology related air interface features. Performance comparison reveals that a strategy merely maximising the capacity might not consider the performance of individual service in some cases.
Jandt, Silke: Datenschutz bei Location Based Services -- Voraussetzungen und Grenzen der rechtmäßigen Verwendung von Positionsdaten. In: MMR (2007), pp. 74–78
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Hotho, A. ; Stumme, G. (eds.):Themenheft Web Mining, Künstliche Intelligenz, 2007
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Sandner, U. ; Resatsch, F. ; Nepper, P. ; Leimeister, J. M. ; Krcmar, H.:News-on-the-go.. In: Proceedings of the 9th international conference on Human computer interaction with mobile devices and services (Mobil HCI 2007). Singapore : ACM, 2007. — EXT21, pp. 361–363
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Hornung, Gerrit: Ermächtigungsgrundlage für die "Online-Durchsuchung"? Verfassungsrechtliche Anforderungen und Grenzen für den heimlichen Zugriff auf IT-Systeme im Ermittlungsverfahren. In: Datenschutz und Datensicherheit (DuD) (2007), pp. 575–580
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Hornung, Gerrit: Gerrit Hornung: Die Festplatte als "Wohnung"? Erwiderung auf Johannes Rux. In: Juristenzeitung 2007 vol. 285 (2007), pp. 828–831
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Gitter, Rotraud ; Learnt, L.:Rechtliche Gestaltungsvorschläge in Sicherheit und Rechtsverbindlichkeit mobiler Agenten, Wiesbaden.. In: Gitter, R. ; Pinsdorf, U. ; Lotz, V. ; Roßnagel, A. (eds.): : Wiesbaden, 2007
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Manouchehri, S. ; Höfer, A. ; Winand, U.:Mobile Nutzung von Social Software im Gesundheitswesen.. In: Leimeister, J. M. ; Mauro, C. ; Krcmar, H. ; Eymann, T. ; Koop, A. (eds.): Mobiles Computing in der Medizin. Aachen : Shaker Verlag, 2007, pp. 137–148
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Geppert, M. ; Roßnagel, A. ; Geppert, M. ; Roßnagel, A. (eds.):TeleMediaR - Telekommunikations- und Multimediarecht, dtv-Textsammlung mit einer Einführung : Beck-Texte im dtv, 7.Auflage, München, 2007
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Gitter, Rotraud ; Roßnagel, A. (ed.):Softwareagenten im elektronischen Geschäftsverkehr : Nomos Verlag Baden-Baden, 2007
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Gitter, Rotraud:Rechtsfragen mobiler Agenten in Sicherheit und Rechtsverbindlichkeit mobiler Agenten.. In: Gitter, R. ; Pinsdorf, U. ; Lotz, V. ; Roßnagel, A. (eds.): : Wiesbaden, 2007
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Mauro, C. ; Schweiger, A. ; Sunyaev, A. ; Leimeister, J. M. ; Krcmar, H.:Single Sign-On Clinic Card-Lösung - Ein Konzept zur zentralen Verwaltung von Gesundheitskarten im stationären Umfeld.. In: Informatik 2007. Bremen : GI - Gesellschaft für Informatik, 2007, pp. 463–468
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Bleul, Steffen ; Zapf, Michael:Ontology-Based Self-Organization in Service-Oriented Architectures.. In: 2. Workshop Selbst-organisierende, adaptive, kontextsensitive verteilte Systeme (SAKS). Bern, Swiss : VDE, 2007
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Gitter, Rotraud:Softwareagentensysteme im elektronischen Geschäftsverkehr: Rechtliche Rahmenbedingungen und Gestaltungsanforderungen an agentengestützte Assistenzsysteme : Baden-Baden, 2007
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Gitter, Rotraud ; Laue, Philip ; Peters, J.:Die zweite Simulationsstudie in Sicherheit und Rechtsverbindlichkeit mobiler Agenten.. In: Gitter, R. ; Pinsdorf, U. ; Lotz, V. ; Roßnagel, A. (eds.): : Wiesbaden, 2007
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Gitter, Rotraud ; Lotz, Volkmar ; Pinsdorf, Ulrich ; Roßnagel, Alexander ; Gitter, R. ; Lotz, V. ; Pinsdorf, U. ; Roßnagel, A. (eds.):Sicherheit und Rechtsverbindlichkeit mobiler Agenten Fachbeiträge zu Datenschutz und Datensicherheit : Deutscher Universitätsverlag, Wiesbaden 2007, 2007
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Bleul, Steffen ; Weise, Thomas ; Geihs, Kurt:Making a Fast Semantic Service Composition System Faster.. In: IEEE Joint Conference on E-Commerce Technology (CEC07) and Enterprise Computing, E-Commerce and E-Services (EEE07) : IEEE Computer Society, 2007, pp. 517–520
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Gitter, Rotraud ; Schnabel, Christoph: Die Richtlinie zur Vorratsspeicherung und ihre Umsetzung in das nationale Recht. In: MMR vol. 2007 (2007), pp. 411–417
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Ammermueller, S. ; Bohl, O. ; Gerstheimer, O. ; Manouchehri, S.:Ansätze der Nutzung Sozialer Netzwerke mittles mobiler Endgeräte.. In: Meißner, K. ; Engelien, M. (eds.): Virtuelle Organisation und Neue Medien 2007. Workshop GeNeMe 2007, Gemeinschaften in Neuen Medien. Dresden : TUDpress, 2007. — Virtuelle Organisation und Neue Medien 2007. Workshop GeNeMe 2007, Gemeinschaften in Neuen Medien, pp. 131–143
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Neal, L. ; Oakley, K. ; Lindgaard, G. ; Kaufman, D. ; Leimeister, J. M. ; Selker, T.:Online health communities.. In: CHI. San Jose : ACM, 2007
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Grahl, Miranda ; Hotho, Andreas ; Stumme, Gerd:Conceptual Clustering of Social Bookmarking Sites.. In: 7th International Conference on Knowledge Management (I-KNOW ’07). Graz, Austria : Know-Center, 2007, pp. 356–364
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Currently, social bookmarking systems provide intuitive support for browsing locally their content. A global view is usually presented by the tag cloud of the system, but it does not allow a conceptual drill-down, e. g., along a conceptual hierarchy. In this paper, we present a clustering approach for computing such a conceptual hierarchy for a given folksonomy. The hierarchy is complemented with ranked lists of users and resources most related to each cluster. The rankings are computed using our FolkRank algorithm. We have evaluated our approach on large scale data from the del.icio.us bookmarking system.
Alani, H. ; Noy, N. ; Stumme, G. ; Mika, P. ; Sure, Y. ; Vrandecic, D. (eds.):Workshop on Social and Collaborative Construction of Structured Knowledge (CKC 2007) at WWW 2007. Banff, Canada, 2007
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Grahl, Miranda ; Hotho, Andreas ; Stumme, Gerd:Conceptual Clustering of Social Bookmark Sites.. In: Hinneburg, A. (ed.): Workshop Proceedings of Lernen -- Wissensentdeckung -- Adaptivität (LWA 2007) : Martin-Luther-Universität Halle-Wittenberg, 2007 — ISBN 978-3-86010-907-6, pp. 50–54
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Bleul, Steffen ; Zapf, Michael ; Geihs, Kurt:Automatic Service Process Administration by Semantic Service Discovery.. In: 7ème Conférence Internationale sur les NOuvelles TEchnologies de la REpartition. Marrakech, Morocco, 2007
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Bleul, Steffen ; Zapf, Michael ; Geihs, Kurt:Flexible Automatic Service Brokering for SOAs.. In: 10 th IFIP / IEEE Symposium on Integrated Management (IM 2007). Munich, Germany, 2007
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Hänlein, Andreas ; Roßnagel, Alexander ; Festschrift für Bernhard Nagel, K. U. press (ed.):Wirtschaftsverfassung in Deutschland und Europa, Festschrift für Bernhard Nagel : Andreas Hänlein, Alexander Roßnagel (Hrsg.), 2007
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Knopp, Michael: Die "Einheitlichen Ansprechpartner" der Dienstleistungsrichtlinie -- Vorgaben und Auswirkungen einer Reformverpflichtung. In: LKRZ (Zeitschrift für Landes- und Kommunalrecht Hessen/Rheinland-Pfalz/Saarland) (2007), p. 251
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Geihs, Kurt ; Reichle, Roland:Development of Self-Adaptive Services.. In: 14th Workshop of the HP Software University Association (HPSUA), 2007
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Hornung, Gerrit:Über Möglichkeiten und Grenzen der rechtlichen Bewertung neuer Überwachungstechnologien.. In: Zurawski, N. (ed.): : Surveillance Studies. Perspektiven eines Forschungsfeldes, Opladen & Farmington Hills 2007, 2007, pp. 149–166
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Sigg, Stephan ; Lau, Sian Lun ; Haseloff, Sandra ; David, Klaus:Approaching a Definition of Context Prediction.. In: Proceedings of the 3rd Workshop on Context Awareness for Proactive Systems, CAPS07. Guildford, United Kingdom, 2007
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Roßnagel, Alexander ; Sanden, Joachim ; Benz, Steffen: Die Bewertung der Leistungsfähigkeit umweltrechtlicher Instrumente. In: Umwelt und Planungsrecht (UPR) vol. 27. Jg. , Heft 10 (2007), pp. 361–366
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Hornung, Gerrit: Die Haftung von W-LAN Betreibern. Neue Gefahren für Anschlussinhaber - und die Idee "offener" Netze, Computer und Recht. In: Computer und Recht (2007), pp. 88–94
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Hornung, Gerrit: Urteilsanmerkung zu EGMR, Application no. 62617/00 - Copland ./. Vereinigtes Königreich (Überwachung von privater E-Mail und Internetnutzung am Arbeitsplatz). In: MMR (2007), pp. 433–434
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Bleul, Steffen:Quality-aware Self-Management for Service Processes in Service-Oriented Architectures.. In: Dumitras, T. ; Hanemann, A. ; Kratz, B. ; Pathak, J. (eds.): IBM PhD Student Symposium at ICSOC 2007. Vienna, Austria : IBM Research Devision, 2007
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Krcmar, Helmut ; Lyytinen, Kalle ; Leimeister, Jan Marco:Value Webs in the Digital Economy.. In: 40th Annual Hawaii International Conference on System Sciences (HICSS). Waikoloa, Hawaii, USA, 2007
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Esch, S. ; Knebel, U. ; Leimeister, J. M. ; Krcmar, H.:Referenzmodell für einen IT-gestützten mobilen Gesundheitscoach.. In: Mobiles Computing in der Medizin - 7. Workshop der GMDS-Arbeitsgruppe Mobiles Computing in der Medizin (Mocomed) 2011. Augsburg, Germany, 2007. — EXT23, pp. 70–84
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Sigg, Stephan ; Haseloff, Sandra ; David, Klaus:Prediction of Context Time Series.. In: Ikonen, J. ; Juutilainen, M. ; Porras, J. (eds.): Proceedings of the 5th Workshop on Applications of Wireless Communications, WAWC’07. Lappeenranta, Finland : Acta Universitatis Lappeenrantaensis, 2007, pp. 31–45
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Context awareness is a key feature of modern computing applications, allowing application behaviour to be adapted to context. The power and quality of context-aware applications can significantly be increased by not only considering past and present contexts for adaptation, but by also predicting and reacting to future contexts. This paper deals with fundamental challenges of context prediction. After an introduction to context prediction and a clarification of the basic terms associated with it, the paper proposes solutions concerning prediction algorithms and describes an architecture for context-aware computing, including context prediction, we have developed. The findings described in the paper are illustrated and verified by simulations using different types of context data and different prediction algorithms.
Sigg, Stephan ; Haseloff, Sandra ; David, Klaus:Minimising the Context Prediction Error.. In: 2007 IEEE 65th Vehicular Technology Conference (VTC-Spring). Dublin, Ireland : IEEE, 2007, pp. 272–276
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Context prediction mechanisms proactively provide information on future contexts. Due to this knowledge novel applications become possible that provide services with proactive knowledge to users. The most serious problem of context prediction mechanisms lies in a basic property of prediction itself. A prediction is always a guess. Since erroneous predictions may cause the application to behave insufficiently, prediction errors have to be minimised. The accuracy of prediction is seriously affected by the reliability of the context data that is utilised by the method. We study two paradigms for context prediction and compare their potential prediction accuracy. We show that the designer of context prediction architectures has to choose wisely as to which prediction paradigm to follow in order to maximise the accuracy of the whole architecture. We also introduce a simulation environment and present simulation results that support the gained insights regarding context prediction.
Sigg, Stephan ; Haseloff, Sandra ; David, Klaus:A Study on Context Prediction and Adaptivity.. In: 2nd International Conference on Digital Information Management, ICDIM ’07. vol. 2. Lyon, France : IEEE, 2007, pp. 717–722
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Chair for communication Technology University of Kassel Context prediction is closely related to the learning of typical user context patterns. A decrease in the learning accuracy likely reduces the context prediction quality. We study the impact of context pre-processing on the learning efficiency of context prediction schemes. In particular, influences of the context data abstraction level on the learning accuracy are analysed. This discussion is accompanied by simulations as on sampled as well as synthetic context data. In the simulation an alignment prediction algorithm is applied to low-level GPS data and to high-level location data.
Löffler, Tino ; Haseloff, Sandra ; David, Klaus:Sensor Selection in Context-Aware Systems.. In: Proceedings of the 3rd Workshop on Context Awareness for Proactive Systems, CAPS07. Guildford, United Kingdom, 2007
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Skubch, Hendrik:Hierarchical Strategy Learning for FLUX Agents : VDM Verlag, 2007
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Löwe, Jutta: Tagungsbericht zur Fachkonferenz Datenschutz 2007, "Herausforderungen für die Modernisierung des Datenschutzrechts" 14.6.2007, Berlin (2007). — fesportal.fes.de/pls/portal30/docs/FOLDER/STABSABTEILUNG/FES_Datenschtz_2007_Tagungsbericht_140607.pdf
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Fischer-Dieskau, Stefanie ; Hornung, Gerrit: Erste höchstrichterliche Entscheidung zur elektronischen Signatur. Anmerkung zu BFH, U. v. 18.10.2006 - XI R 22/06. In: Neue Juristische Wochenschrift (2007), pp. 2897–2899
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Hoffmann, H. ; Leimeister, J. M. ; Krcmar, H.:A framework for developing personalizable mobile services in automobiles.. In: Österle, H. ; Schelp, J. ; Winter, R. (eds.): European Conference on Information Systems (ECIS). St. Gallen, Switzerland : University of St. Gallen, 2007, pp. 938–949
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Hoffmann, H. ; Leimeister, J. M. ; Krcmar, H.:Pilotierung mobiler Dienste im Automobilsektor.. In: Mobile Dienste im Auto der Zukunft : Eul-Verlag, 2007, pp. 125–203
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Bohl, O. ; Höfer, A. ; Manouchehri, S.: Migration als systematischer Ansatz für erfolgreiche IKT-Innovations-und Wandlungsprozesse. In: IM - Information Management & Consulting. Embedded Software IT Migrationen (2007), Nr. 3, pp. 44–48
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Hoffmann, H. ; Leimeister, J. M. ; Krcmar, H.:Automotive Service Engineering - Systematische Entwicklung personalisierbarer und interaktiver mobiler Dienste für den Automobilsektor.. In: Wirtschaftsinformatik Konferenz (WI) 2007. vol. 1. Karlsruhe : Universitätsverlag Karlsruhe, 2007. — 07-46, pp. 327–344
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Geihs, Kurt:A Development Framework for Adaptive Pervasive Applications.. In: Workshop on Software Engineering of Pervasive Services (SEPS07) in conjunction with IEEE ICPS07 : IEEE, 2007
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Bleul, Steffen ; Geihs, Kurt:Automatische Dienstvermittlung in dienstorientierten Architekturen ( Nr. 34-2007070). Kassel, Germany : Kasseler Informatikschriften (KIS), 2007
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Nolde, Malaika ; Schnabel, Christoph:Verfassungsrechtliche Grenzen der staatlichen Inhaltskontrolle im Internet.. In: Taeger, J. ; Wiebke, A. (eds.): : Aktuelle Entwicklungen im Informationstechnologierecht, Oldenburg 2007, 2007, pp. 285–300
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Cattuto, Ciro ; Schmitz, Christoph ; Baldassarri, Andrea ; Servedio, Vito D. P. ; Loreto, Vittorio ; Hotho, Andreas ; Grahl, Miranda ; Stumme, Gerd: Network Properties of Folksonomies. In: Hoche, S. ; Nürnberger, A. ; Flach, J. (eds.) AI Communications Journal, Special Issue on ``Network Analysis in Natural Sciences and Engineering’’ vol. 20, IOS Press (2007), Nr. 4, pp. 245–262
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Bohl, O. ; Manouchehri, S. ; Winand, U.:Migration als Ansatz zur Gestaltung mobiler Services.. In: Oberweis, A. ; Weinhardt, C. ; Gimpel, H. ; Koschmider, A. ; Pankratius, V. ; Schnizler, B. (eds.): eOrganisation: Service-, Prozess-, Market-Engineering - 8. Internationale Tagung Wirtschaftsinformatik. vol. Band 1. Karlsruhe : Universitätsverlag Karlsruhe, 2007, pp. 309–326
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Roßnagel, Alexander:Atomausstieg und Restlaufzeiten.. In: Hänlein, A. A. R. (Hrsg.) (ed.): : Wirtschaftsverfassung in Deutschland und Europa, Festschrift für Bernhard Nagel, Kassel, 2007, pp. 155–170
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Schmitz, Christoph ; Grahl, Miranda ; Hotho, Andreas ; Stumme, Gerd ; Catutto, Ciro ; Baldassarri, Andrea ; Loreto, Vittorio ; Servedio, Vito D. P.:Network Properties of Folksonomies.. In: Proc. WWW2007 Workshop ``Tagging and Metadata for Social Information Organization’’. Banff, 2007
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Roßnagel, Alexander:Informationelle Selbstbestimmung in der Welt des Ubiquitous Computing.. In: Mattern, F. (Hrsg.) (ed.): : Die Informatisierung des Alltags -- Leben in smarten Umgebungen, Berlin 2007, 2007, pp. 265–289
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Jäschke, Robert ; Hotho, Andreas ; Schmitz, Christoph ; Stumme, Gerd:Analysis of the Publication Sharing Behaviour in BibSonomy.. In: Priss, U. ; Polovina, S. ; Hill, R. (eds.): Proceedings of the 15th International Conference on Conceptual Structures (ICCS 2007), Lecture Notes in Artificial Intelligence. vol. 4604. Berlin, Heidelberg : Springer-Verlag, 2007 — ISBN 3-540-73680-8, pp. 283–295
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BibSonomy is a web-based social resource sharing system which allows users to organise and share bookmarks and publications in a collaborative manner. In this paper we present the system, followed by a description of the insights in the structure of its bibliographic data that we gained by applying techniques we developed in the area of Formal Concept Analysis.
Roßnagel, Alexander: Die Unkontrollierbarkeit des Netzes -- Datenschutz in Zeiten von Web 2.0. In: tendenz, Magazin für Funk und Fernsehen der Bayrischen Landeszentrale für neue Medien vol. Heft 3 (2007), pp. 12–13
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Roßnagel, Alexander: Einführung in das Internetrecht in Deutschland und der europäischen Union. In: Sungkyunkwan Journal of Science & Technology Law vol. Vol. 1 No. 1 (Spring 2007) (2007), pp. 119–128
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Roßnagel, Alexander: lFremdsignieren elektronischer Rechnungen: Vorsteuerabzug gefährdet. In: Betriebs-Berater (BB) vol. 62. Jg. , Heft 23 (2007), pp. 1233–1237
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Roßnagel, Alexander ; Paul, Sandra: A Die Nutzung privater Vergabeplattformen durch öffentliche Auftraggeber. In: Vergaberecht vol. 7. Jg , Heft 3 (2007), pp. 313–322
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Roßnagel, Alexander:Technische und rechtliche Herausforderungen der Entwicklung.. In: Grünen", B. "Bündnis 90/Die (ed.): : Bürgerrechtsschutz im digitalen Zeitalter, Dokumentation der Tagung vom 26. März 2007 in Berlin, 2007, pp. 31–34
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Roßnagel, Alexander: Das Telemediengesetz - Neuordnung für Informations- und Kommunikationsdienste. In: Neue Zeitschrift für Verwaltungsrecht (NVwZ) vol. 26. Jg. , Heft 7 (2007), pp. 743–748
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Leimeister, J. M. ; Knebel, U. ; Krcmar, H.: RFID as enabler for the boundless real-time organisation: empirical insights from Germany. In: Inderscience (ed.) International Journal of Networking and Virtual Organisations vol. 4 (2007), Nr. 1, pp. 45–64
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Leimeister, J. M. ; Knebel, U. ; Krcmar, H.: Exploring mobile information systems for chronically ill adolescent patients. In: Inderscience (ed.) International Journal of Web-based Communities vol. 3 (2007), Nr. 4
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Roßnagel, Alexander: Telemediengesetz - Korrektur eines historischen Irrtums. In: Kommunikation und Recht (K\&R) vol. 10. Jg. , Heft 2 (2007), p. unbekannt
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Roßnagel, Alexander: Verfassungspolitische und verfassungsrechtliche Fragen der Online-Durchsuchung. In: Deutsche Richter-Zeitung (DRiZ) vol. 85. Jg. (207), Heft 8 (2007), pp. 229–230
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Roßnagel, Alexander:Biometrie -- Schutz und Gefährdung von Grundrechten.. In: Schaar, P. (Hrsg.) (ed.): : Biometrie und Datenschutz -- Der vermessene Mensch, Bonn 2007, 2007, pp. 56–76
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Leimeister, J. M. ; Knebel, U. ; Sandner, U. ; Kern, E. M. ; Krcmar, H.:Strategic importance of RFID - Empirical and conceptual insights.. In: Blecker, T. ; Huang, G. (eds.): Handbook of Radio Frequency Identification (RFID) - Technologies in Operations and Supply Chain Management : E. Schmidt-Verlag, 2007
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Roßnagel, Alexander: Die Form des Bieterangebots in der elektronischen Vergabe. In: Neue Zeitschrift für Baurecht und Vergaberecht (NZBau) vol. Jg. 8 , Heft 2 (2007), pp. 74–79
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Roßnagel, Alexander: Datenschutz in der Welt allgegenwärtigen Rechnens. In: Information Technology (it) vol. 49 Jg. , Heft 2 (2007), pp. 83–90
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Becher, Silvio ; Laue, Philip ; Maidl, Monika ; Modsching, Marko:Die datenschutz- und sicherheitskonforme Ausgestaltung von Location Based Services am Beispiel eines mobilen Touristenführers.. In: König-Ries, B. ; Lehner, F. ; Malaka, R. ; Türker, C. (eds.): , 2007, p. 85
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Benz, Dominik ; Hotho, Andreas:Position Paper: Ontology Learning from Folksonomies.. In: Hinneburg, A. (ed.): Workshop Proceedings of Lernen - Wissensentdeckung - Adaptivität (LWA 2007) : Martin-Luther-Universität Halle-Wittenberg, 2007. — http://lwa07.informatik.uni-halle.de/kdml07/kdml07.htm — ISBN 978-3-86010-907-6, pp. 109–112
- [ Abstract ]
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The emergence of collaborative tagging systems with their underlying flat and uncontrolled resource organization paradigm has led to a large number of research activities focussing on a formal description and analysis of the resulting “folksonomies�?. An interesting outcome is that the characteristic qualities of these systems seem to be inverse to more traditional knowledge structuring approaches like taxonomies or ontologies: The latter provide rich and precise semantics, but suffer - amongst others - from a knowledge acquisition bottleneck. An important step towards exploiting the possible synergies by bridging the gap between both paradigms is the automatic extraction of relations between tags in a folksonomy. This position paper presents preliminary results of ongoing work to induce hierarchical relationships among tags by analyzing the aggregated data of collaborative tagging systems as a basis for an ontology learning procedure.
Roßnagel, Alexander:Datenschutz in einem informatisierten Alltag, Studie für die Friedrich Ebert-Stiftung : Studie für die Friedrich Ebert-Stiftung, Berlin 2007, 2007
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Roßnagel, Alexander:Das Verhältnis von Informationsfreiheit und Datenschutz.. In: des Hessischen Landtags (Hrsg.), D. H. D. / D. P. (ed.): : Der Hessische Datenschutzbeauftragte / Der Präsident des Hessischen Landtags (Hrsg.), Informationsfreiheit und Datenschutz, 15. Wiesbadener Forum Datenschutz, Wiesbaden, 2007, pp. 17–26
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Laue, Philip ; Audersch ; S./Peters ; J:Datenschutzgerechte Vorgangsbearbeitung im eGovernment.. In: Horster, P. (ed.): : D-A-CH Security 2007, 166, 2007, p. 166
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Laue, Philip ; Maidl, Monika ; Peters ; J: Zweckbindung in ämterübergreifenden Verwaltungsworkflows. In: Datenschutz und Datensicherheit (DuD) (2007), p. 810
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Roßnagel, Alexander: On the Ability of Signature Creation with Trusted Platform Modules. In: Digital Evidence Journal vol. Vol. 4, No. 2 (2007), pp. 81–88
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Roßnagel, Alexander ; Kleist, Thomas ; Scheuer, Alexander:Die Reform der Regulierung elektronischer Medien in Europa -- Dargestellt am Beispiel der EG, Belgiens, Deutschlands, Frankreichs, Italiens und des Vereinigten Königreichs : Schriftenreihe der Landesanstalt für Medien Nordrhein-Westfalen, Vistas Verlag, Berlin 2007, 2007
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Roßnagel, Alexander: Personalisierung in der E-Welt - Aus dem Blickwinkel der informationellen Selbstbestimmung gesehen. In: WIRTSCHAFTSINFORMATIK 49 1 vol. 49 1 (2007), pp. 8–15
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Roßnagel, Alexander: Konflikte zwischen Informationsfreiheit und Datenschutz?. In: Multimedia und Recht vol. 10. Jg. , Heft 1 (2007), pp. 16–21
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Lamla, Jörn:Building a Market-Community. Paradoxes of Culturalization and Merchandization in the Internet. Paper prepared for the Conference: “The institutional embeddedness of markets”. Köln : Max Planck Institute for the Study of Societies, 2007
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Roßnagel, Alexander ; Laue, Philip: Zweckbindung im E-Government. In: Die Öffentliche Verwaltung (DÖV) vol. 60. Jg. , Heft 13 (2007), pp. 543–549
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Roßnagel, Alexander:Einleitung.. In: Gitter, R. ; Lotz ; Pinsdorf ; Roßnagel (eds.): : Sicherheit und Rechtsverbindlichkeit mobiler Agenten, Wiesbaden, 2007, pp. 3–7
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Roßnagel, Alexander:Innovation als Gegenstand der Rechtswissenschaft.. In: Hof, H. (ed.): : Innovationsforschung -- Ansätze, Methoden, Grenzen und Perspektiven, Münster, 2007, pp. 9–22
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Roßnagel, Alexander:Simulationsstudie als Praxistest und Gestaltungsmittel, in: Rotraud Gitter/Lotz/Pinsdorf/ Roßnagel (Hrsg.), Sicherheit und Rechtsverbindlichkeit mobiler Agenten, Wiesbaden 2007, 59 -- 69.. In: Gitter, R. ; Lotz ; Pinsdorf ; Roßnagel (eds.): : Sicherheit und Rechtsverbindlichkeit mobiler Agenten, Wiesbaden, 2007, pp. 59–69
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Leimeister, J. M.: IT-Management in deutschen Krankenhäusern - eine empirische Untersuchung unter IT-Entscheidern. In: Arbeitspapier. München, Lehrstuhl für Wirtschaftsinformatik, Technische Universität München (2007), Nr. 27
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Roßnagel, Alexander: Grundlagen der Weiterentwicklung von rechtlichen Instrumenten zur Ressourcenschonung. In: Benz, V. J. / (ed.) (2007)
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Roßnagel, Alexander: Die signaturrechtliche Herstellererklärung. In: Multimedia und Recht (MMR) vol. 10. Jg. , Heft 8 (2007), pp. 487–493
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Leimeister, J. M. ; Mauro, C.:Mobiles Computing in der Medizin: Proceedings zum 7. Workshop der GMDS-Arbeitsgruppe Mobiles Computing in der Medizin, Berichte aus der medizinischen Informatik und Bioinformatik. Aachen : Shaker, 2007
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Roßnagel, Alexander ; Fischer-Dieskau, Stefanie ; Jandt, Silke: Anforderungen, Trends und Empfehlungen zum ersetzenden Scannen von Papierdokumenten. In: AWV-Informationen vol. 53. Jg. , Heft 4 (2007), pp. 16–19
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Cao, Yiwei ; Ehms, Karsten ; Fiedler, Sebastian ; Hofer, Margit ; Kaiamo, Anna-Kaarina ; Kieslinger, Barbara ; Klamma, Ralf ; Krause, Beate ; et al.: Case study on social software use in distributed working environments (2007). — Deliverable 15.2, European Network of Excellence ``Prolearn - Professional E-Learning’’
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Benz, Dominik ; Tso, Karen H. L. ; Schmidt-Thieme, Lars: Supporting Collaborative Hierarchical Classification: Bookmarks as an Example. In: Special Issue of the Computer Networks journal on Innovations in Web Communications Infrastructure vol. 51 (2007), Nr. 16, pp. 4574–4585
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Bookmarks (or favorites, hotlists) are popular strategies to relocate interesting websites on the WWW by creating a personalized URL repository. Most current browsers offer a facility to locally store and manage bookmarks in a hierarchy of folders; though, with growing size, users reportedly have trouble to create and maintain a stable organization structure. This paper presents a novel collaborative approach to ease bookmark management, especially the “classification�? of new bookmarks into a folder. We propose a methodology to realize the collaborative classification idea of considering how similar users have classified a bookmark. A combination of nearest-neighbor-classifiers is used to derive a recommendation from similar users on where to store a new bookmark. A prototype system called CariBo has been implemented as a plugin for the central bookmark server software SiteBar. All findings have been evaluated on a reasonably large scale, real user dataset with promising results, and possible implications for shared and social bookmarking systems are discussed.
Roßnagel, A. ; Friedrich-Ebert-Stiftung (ed.):Datenschutz in einem informatisierten Alltag. Berlin, 2007
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Roßnagel, Alexander ; Hornung, Gerrit: Umweltschutz versus Datenschutz? Zu den Möglichkeiten eines datenschutzkonformen Einsatzes von RFID-Systemen zur Abfallerkennung. In: Umwelt und Planungsrecht (UPR) vol. 27. Jg. , Heft 7 (2007), pp. 255–260
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Leimeister, J. M. ; Mauro, C. ; Krcmar, H. ; Eymann, T. ; Koop, A.:Mobiles Computing in der Medizin : Shaker Verlag, 2007
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Bretschneider, U. ; Bohnet-Joschko, S.:Prozessmanagement im Krankenhaus durch Process Owner Communities.. In: Bohnet-Joschko, S. (ed.): Wissensmanagement im Krankenhaus: Effizienz- und Qualitätssteigerungen durch versorgungsorientierte Organisation von Wissen und Prozessen. Wiesbaden, Germany : Gabler, 2007, pp. 31–48
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Roßnagel, Alexander ; Fischer-Dieskau, Stefanie ; Jandt, Silke ; Knopp, Michael:Langfristige Aufbewahrung elektronischer Dokumente-- Anforderungen und Trends : Schriftenreihe "Der elektronische Rechtsverkehr", Band 17, Nomos Verlag, Baden-Baden, 2007
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Bretschneider, U. ; Ebner, W. ; Leimeister, J. M. ; Krcmar, H.:Internetbasierte Ideenwettbewerbe als Instrument der Integration von Kunden in das Innovationsmanagement von Software-Unternehmen.. In: Engelien, M. ; Homann, J. (eds.): Virtuelle Organisationen und Neue Medien 2007 /Workshop GeNeMe 2007: Gemeinschaften in neuen Medien. Dresden, Germany : Joseph Eul Verlag, 2007
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Roßnagel, Alexander ; Hornung, Gerrit: Self-Regulation of Internet-Privacy in Germany and the European Union. In: Sungkyunkwan Journal of Science & Technology Law vol. Vol. 1 No. 1 (Spring 2007) (2007), pp. 55–72
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Böttcher, Stefan ; Steinmetz, Rita ; Klein, Niklas:XML index compression by DTD subtraction.. In: Cardoso, J. ; Cordeiro, J. ; Filipe, J. (eds.): ICEIS (1), 2007 — ISBN 978-972-8865-88-7, pp. 86–94
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Baer, Philipp A. ; Reichle, Roland ; Zapf, Michael ; Weise, Thomas ; Geihs, Kurt:A Generative Approach to the Development of Autonomous Robot Software.. In: Sterrit, T. B. R. (ed.): Fourth IEEE International Workshop on Engineering of Autonomic and Autonomous Systems : IEEE, 2007, pp. 43–52
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Roßnagel, Alexander ; Fischer-Dieskau, Stefanie ; Jandt, Silke:Handlungsleitfaden zur Aufbewahrung elektronischer und elektronisch signierter Dokumente : herausgegeben vom Bundesministerium für Wirtschaft und Technologie, Dokumentation Nr. 564, Berlin 2007, 2007
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Jäschke, Robert ; Grahl, Miranda ; Hotho, Andreas ; Krause, Beate ; Schmitz, Christoph ; Stumme, Gerd:Organizing Publications and Bookmarks in BibSonomy.. In: Alani, H. ; Noy, N. ; Stumme, G. ; Mika, P. ; Sure, Y. ; Vrandecic, D. (eds.): Workshop on Social and Collaborative Construction of Structured Knowledge (CKC 2007) at WWW 2007. Banff, Canada, 2007
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2006[ to top ]

Hallaschka, Florian ; Jandt, Silke: Standortbezogene Dienste im Unternehmen. In: MMR (2006), pp. 436–440
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Leimeister, J. M. ; Krcmar, H.:Technologien für Online-Communities. In: Unternehmenskommunikation : Symposion Publishing, 2006. — 06-01
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Sigg, Stephan ; David, K.:Optimum Resource Allocation in HSDPA.. In: Proceedings of the 12th European Wireless Conference: Enabling Technologies for Wireless Multimedia Communications (EW 2006). Athens, Greece : VDE, 2006, pp. 1–7
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We propose a channel aware resource allocation algorithm for HSDPA that receives higher overall weighted throughput than the popular proportional fair scheduler, while following the same fairness scheme. Our algorithm comhines features of the proportional fair algorithm with a recent optimisation algorithm for the randombed knapsack problem. We demonstrate the high potential of the proposed algorithm in a simulation environment.
Kuhlenkamp, A. ; Manouchehri, S. ; Mergel, I. ; Winand, U.: Privatsphäre versus Erreichbarkeit bei der Nutzung von Social Software. In: Hildebrand, K. ; Hofmann, J. (eds.) Social Software. HMD Praxis der Wirtschaftsinformatik, dpunkt.verlag (2006), Nr. 252, pp. 27–35
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Jäschke, Robert ; Hotho, Andreas ; Schmitz, Christoph ; Ganter, Bernhard ; Stumme, Gerd:TRIAS - An Algorithm for Mining Iceberg Tri-Lattices.. In: Proceedings of the 6th IEEE International Conference on Data Mining (ICDM 06). Hong Kong : IEEE Computer Society, 2006 — ISBN 0-7695-2701-9, pp. 907–911
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Bohnet-Joschko, S. ; Bretschneider, U.: Wissensbasiertes Prozessmanagement zur Optimierung der Leistungserstellung im Krankenhaus. In: Zeitschrift für öffentliche und gemeinwirtschaftliche Unternehmen (ZögU) vol. 29 (2006), Nr. 2, pp. 201–211
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Jäschke, Robert ; Hotho, Andreas ; Schmitz, Christoph ; Stumme, Gerd:Wege zur Entdeckung von Communities in Folksonomies.. In: Braß, S. ; Hinneburg, A. (eds.): Proc. 18. Workshop Grundlagen von Datenbanken. Halle-Wittenberg : Martin-Luther-Universität, 2006, pp. 80–84
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Ein wichtiger Baustein des neu entdeckten World Wide Web -- des "`Web 2.0"' -- stellen Folksonomies dar. In diesen Systemen können Benutzer gemeinsam Ressourcen verwalten und mit Schlagwörtern versehen. Die dadurch entstehenden begrifflichen Strukturen stellen ein interessantes Forschungsfeld dar. Dieser Artikel untersucht Ansätze und Wege zur Entdeckung und Strukturierung von Nutzergruppen ("Communities") in Folksonomies.
Leimeister, J. M. ; Schweiger, A. ; Krcmar, H.:Ortsunabhängiges Management von hochpreisigen mobilen medizinischen Geräten im Krankenhaus auf WLAN-Basis.. In: Proceedings of Informatik 2006. Dresden : GI - Gesellschaft für Informatik, 2006, pp. 220–226
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Ackermann, M. ; Berendt, B. ; Grobelnik, M. ; Hotho, A. ; Mladenic, D. ; Semeraro, G. ; Spiliopoulou, M. ; Stumme, G. ; et al. (eds.):Semantics, Web and Mining. Heidelberg : Springer, 2006
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Sigg, Stephan ; Haseloff, Sandra ; David, Klaus:A Novel Approach to Context Prediction in UBICOMP Environments.. In: Proceedings of the 17th International Symposium on Personal, Indoor and Mobile Radio Communications. Helsinki, Finland : IEEE, 2006, pp. 1–5
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The ability to predict future contexts significantly expands the possibilities of context-aware computing applications. However, an incorrect prediction may also mislead the application and may result in inappropriate application behaviour. We study influences on the prediction accuracy and propose a novel approach to context prediction in ubiquitous computing environments. In our paper we introduce a context time series prediction algorithm based on local alignment techniques. Our approach has the potential to improve the prediction accuracy since it explores the observed context history in more detail than current algorithms. In conclusion, we present simulation results that support our studies.
Honneth, A. ; Beaufaÿs, S. ; Jaeggi, R. ; Lamla, J. ; Hartmann, M. ; für Sozialforschung, I. (eds.):Schlüsseltexte der Kritischen Theorie. Wiesbaden : VS-Verlag, 2006
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Bishop, J. ; Geihs, K. ; (Eds.), M. T. (eds.):8th International Symposium on Distributed Objects and Applications (DOA), 8th International Symposium on Distributed Objects and Applications (DOA), 2006. — Montpellier, Frankreich, 2006
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Klapdor, S. ; Leimeister, J. M. ; Krcmar, H.: Innovation, made in Germany - Die eGK und die Telematikinfrastruktur für das deutsche Gesundheitswesen (Teil 1). In: Krankenhaus IT-Journal vol. 4 (2006), Nr. 1, pp. 32–34
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Sigg, Stephan ; Haseloff, Sandra ; David, Klaus:Context Prediction by Alignment Methods.. In: Poster Proceedings of the Fourth International Conference on Mobile Systems, Applications, and Services, MobiSys’06. Uppsala, Sweden : ACM, 2006
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Roßnagel, A. ; Jandt, S. ; Müller, J. ; Gutscher, A. ; Heesen, J.:Datenschutzfragen mobiler kontextbezogener Systeme, Fachbeiträge zu Datenschutz und Datensicherheit : Deutscher Universitätsverlag, 2006
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Sigg, Stephan ; Haseloff, Sandra ; David, Klaus:The Impact of the Context Interpretation Error on the Context Prediction Accuracy.. In: 2006 3rd Annual International Conference on Mobile and Ubiquitous Systems - Workshops. Helsinki, Finland : IEEE, 2006, pp. 1–4
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We study the impact of the context interpretation error on the context prediction accuracy. Benefits and drawbacks of current context prediction schemes are analysed and opposed to a contemporary alternative. We propose a novel context prediction scheme that has the potential to significantly improve the context prediction accuracy. The impact of the context interpretation error on the context prediction accuracy is further analysed in simulations inspired by our analytical considerations.
Coutand, Olivier ; Lau, Sian Lun ; Haseloff, Sandra ; Droegehorn, Olaf ; David, Klaus:An Approach Using Memory-Based Reasoning for Determining the Behaviour of Mobile, Location-Aware Services.. In: Proceedings of the 2nd Workshop on Context Awareness for Proactive Systems CAPS 2006. Kassel, 2006
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Geihs, Kurt ; Khan, Mohammad Ullah ; Reichle, Roland ; Solberg, A. ; Hallsteinsen, S. ; Merral, S.:Modeling of Component-based Adaptive Distributed Applications.. In: The 21st Annual ACM Symposium on Applied Computing, 2006. — DADS Track, Dijon, France, April 23 -27, 2006
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Coutand, Olivier ; Haseloff, Sandra ; Lau, Sian Lun ; David, Klaus:A CBR Approach for Personalizing Location-aware Services.. In: Schwarz, S. ; Bogaerts, S. ; Schulz, S. (eds.): Proceedings of the 1st Workshop on Case-based Reasoning and Context Awareness co-located with the 8th European Conference on Case-Based Reasoning, ECCBR 2006. Ölüdeniz / Fethiye, Turkey : CEUR-WS.org, 2006, pp. 247–259
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The popularization of mobile devices in the last years has led to the development of an increasing number of services. However the technical limitations of mobile devices call for services that require minimal interactions with the user and adapt their behaviors to the user’s expectations. Context-awareness has proven to facilitate personalization of services by enabling the adaptation of the service to the user’s situation. However, the adaptation is often carried out by using predefined rules that only apply to some contexts. In this paper, we present our approach that addresses this limitation in location-aware services by referring to the previous actions of the user. We have developed a metric to calculate the similarity between the current user’s location and the previous ones. Based on this metric, our approach provides a personalized service by determining the service behavior expected by the user in the current location. A service, the Call Profiler service, details our approach.
Klapdor, S. ; Leimeister, J. M. ; Krcmar, H.: Innovation, made in Germany - Die eGK und die Telematikinfrastruktur für das deutsche Gesundheitswesen (Teil 2). In: Krankenhaus IT-Journal vol. 4 (2006), Nr. 2
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Geihs, Kurt ; Khan, Mohammad Ullah ; Reichle, Roland ; Solberg, A.:Modeling of Component-Based Self-Adapting Context-Aware Applications for Mobile Devices.. In: IFIP Working Conference on Software Engineering Techniques, 2006. — Warsaw, Poland, October 18-20, 2006
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Leimeister, J. M. ; Sidiras, P. ; Krcmar, H.: Exploring success factors of virtual communities: The perspectives of members and operators. In: Journal of Organizational Computing & Electronic Commerce (JoCEC) vol. 16, Lawrence Earlbaum (2006), Nr. 3&4, pp. 277–298
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Bohnet-Joschko, S. ; Bretschneider, U.: Wissensmanagement im Krankenhaus. In: Wissensmanagement vol. 8 (2006), Nr. 3, pp. 16–17
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Bleul, Steffen ; Geihs, Kurt:Automatic Quality-Aware Service Discovery and Matching.. In: 13th Annual Workshop of HP OpenView University Association (HP-OVUA) : Infocomics-Consulting, Stuttgart, Germany, 2006, pp. 109–118
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Geihs, Kurt:Why Robots Play Soccer (Keynote Extended Abstract).. In: Bishop, T. A. J. (ed.): Annual Conference of the South African Institute of Computer Scientists and Information Technologists (SAICSIT 2006), International Proceedings Series : ACM, 2006. — ISBN 1-59593-567-3
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Bohnet-Joschko, S. ; Bretschneider, U.:Empirische Untersuchung von Online-Selbsthilfegruppen für Diabetes-Mellitus- und Multiple Sklerose-Patienten: Determinanten des Erfolgs aus der Nutzerperspektive.. In: Meißner, K. ; Engelien, M. (eds.): Virtuelle Organisation und Neue Medien 2006, Konferenzband zur Gemeinschaft in Neuen Medien (GeNeMe). Dresden, Germany : TUDpress, 2006, pp. 359–371
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Alia, Mourad ; Horn, Geir ; Khan, Mohammad Ullah ; Fricke, Rolf ; Reichle, Roland:A Component-based Planning Framework for Adaptive Systems.. In: The 8th International Symposium on Distributed Objects and Applications (DOA), 2006
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Hotho, Andreas ; Jäschke, Robert ; Schmitz, Christoph ; Stumme, Gerd:Emergent Semantics in BibSonomy.. In: Hochberger, C. ; Liskowsky, R. (eds.): Informatik 2006 -- Informatik für Menschen. Band 2, Lecture Notes in Informatics. vol. P-94. Bonn : Gesellschaft für Informatik, 2006. — Proc. Workshop on Applications of Semantic Technologies, Informatik 2006
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Social bookmark tools are rapidly emerging on the Web. In suchsystems users are setting up lightweight conceptual structurescalled folksonomies. The reason for their immediate success is thefact that no specific skills are needed for participating. In thispaper we specify a formal model for folksonomies, briefly describeour own system BibSonomy, which allows for sharing both bookmarks andpublication references, and discuss first steps towards emergent semantics.
Bohl, O. ; Manouchehri, S. ; Winand, U.:Identifikation von Unterstützungsmöglichkeiten individueller Lebensprozesse durch mobile Technologien.. In: Hochberger, R. (ed.): Informatik 2006. Informatik für Menschen. vol. 1 : Lecture Notes in Informatics, 2006, pp. 227–233
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Hotho, Andreas ; Jäschke, Robert ; Schmitz, Christoph ; Stumme, Gerd:FolkRank: A Ranking Algorithm for Folksonomies.. In: Proc. FGIR 2006, 2006
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In social bookmark tools users are setting up lightweight conceptual structures called folksonomies. Currently, the information retrieval support is limited. We present a formal model and a new search algorithm for folksonomies, called FolkRank, that exploits the structure of the folksonomy. The proposed algorithm is also applied to find communities within the folksonomy and is used to structure search results. All findings are demonstrated on a large scale dataset. A long version of this paper has been published at the European Semantic Web Conference 2006.
Hotho, Andreas ; Jäschke, Robert ; Schmitz, Christoph ; Stumme, Gerd:Information Retrieval in Folksonomies: Search and Ranking.. In: Sure, Y. ; Domingue, J. (eds.): The Semantic Web: Research and Applications, LNAI. vol. 4011. Heidelberg : Springer, 2006, pp. 411–426
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Hotho, Andreas ; J�schke, Robert ; Schmitz, Christoph ; Stumme, Gerd:Information Retrieval in Folksonomies: Search and Ranking.. In: Sure, Y. ; Domingue, J. (eds.): The Semantic Web: Research and Applications, LNAI. vol. 4011. Heidelberg : Springer, 2006, pp. 411–426
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Piao, Guihua ; David, Klaus ; Karla, Ingo ; Sigle, Rolf:Performance of Distributed MXRRM.. In: Proceedings of the 17th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC 2006). Helsinki, Finland : IEEE, 2006, pp. 1–5
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Recent simulation studies of heterogeneous wireless networks have shown promising system performance improvements by using multi standard radio resource management (MxRRM) with a centralised MxRRM architecture. In the present paper, the distributed MxRRM architecture is studied, including the modelling of signalling, where intersystem cell load information can only be exchanged at certain events. Consequently, the distributed MxRRM entities have to base their decisions on potentially inaccurate load information. The system performance is investigated by simulation studies, where the results of distributed MxRRM scenarios are compared to two reference cases, 1) assuming ideal system information for MxRRM and 2) separated systems without any MxRRM functionality. Furthermore, an additional dedicated mechanism to exchange the load information aiming to improve the load information accuracy is investigated.
Martin-Flatin, J.-P. ; Sventek, J. ; Geihs, Kurt: Self-Managed Systems And Services (Editorial). In: Communications of the ACM vol. 49 (2006), Nr. 3. — March 2006
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Bleul, Steffen ; Weise, Thomas ; Geihs, Kurt: An Ontology for Quality-Aware Service Discovery. In: Special Edition Editorial: Engineering Design and Composition of Service-Oriented Applications, Computer Systems Science & Engineering vol. 5 (2006), Nr. 21
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Leimeister, J. M. ; Krcmar, H.: Community Engineering - Systematischer Aufbau und Betrieb Virtueller Communities im Gesundheitswesen. In: Wirtschaftsinformatik vol. 48, Vieweg (2006), Nr. 6, pp. 418–429
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Klumpp, D. ; Kubicek, H. ; Roßnagel, A. ; Schulz, W. (eds.):Medien, Ordnung und Innovation : Springer, 2006
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Bleul, Steffen ; Weise, Thomas ; Geihs, Kurt:Large-Scale Service Composition in Semantic Service Discovery.. In: IEEE Joint Conference on E-Commerce Technology (CECâ��06) and Enterprise Computing, E-Commerce and E-Services (EEEâ��06) : Springer Press, 2006. — San Francisco/USA, 2006, pp. 427–429
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Schweizer, K. ; Leimeister, J. M. ; Krcmar, H.:The role of virtual communities for the social network of cancer patients.. In: Proceedings of the Americas Conference on Information Systems (AMCIS 2006). Acapulco, 2006
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Leimeister, J. M. ; Krcmar, H.:Virtuelle Communities für Patienten - Das Forschungsprojekt "Community Online Services and Mobile Solutions" (COSMOS) - Teilprojekt Healthcare.. In: Jäckel, A. M. (ed.): Telemedizinführer Deutschland : Minerva, 2006
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Schweiger, A. ; Leimeister, J. M. ; Niggemann, J. ; Feussner, H. ; Krcmar, H.: Softwareagenten für die Überwindung von Medienbrüchen bei der Patientenversorgung - Ein Fallbeispiel aus dem Klinikum rechts der Isar der Technischen Universität München. In: HMD - Praxis der Wirtschaftsinformatik vol. 43 (2006), Nr. 251, pp. 88–100
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Roßnagel, A. (ed.):Allgegenwärtige Identifizierung? Neue Identitätsinfrastrukturen und ihre rechtliche Gestaltung. vol. 33 : Nomos, 2006
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Bohnet-Joschko, S. ; Bretschneider, U.: Process Owner Communities: Akteure eines Wissensmanagements im Krankenhaus. In: Journal Arbeit vol. 6 (2006), Nr. 1, pp. 20–21
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Leimeister, J. M. ; Krcmar, H.:Designing and implementing virtual patient support communities: A German case study.. In: Murero, M. ; Rice, R. E. (eds.): The Internet and health care: Theory, research and practice : Lawrence Erlbaum Associates, 2006
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Hotho, Andreas ; Jäschke, Robert ; Schmitz, Christoph ; Stumme, Gerd:Trend Detection in Folksonomies.. In: Avrithis, Y. S. ; Kompatsiaris, Y. ; Staab, S. ; O’Connor, N. E. (eds.): Proc. First International Conference on Semantics And Digital Media Technology (SAMT), LNCS. vol. 4306. Heidelberg : Springer, 2006 — ISBN 3-540-49335-2, pp. 56–70
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As the number of resources on the web exceeds by far the number of documents one can track, it becomes increasingly difficult to remain up to date on ones own areas of interest. The problem becomes more severe with the increasing fraction of multimedia data, from which it is difficult to extract some conceptual description of their contents. One way to overcome this problem are social bookmark tools, which are rapidly emerging on the web. In such systems, users are setting up lightweight conceptual structures called folksonomies, and overcome thus the knowledge acquisition bottleneck. As more and more people participate in the effort, the use of a common vocabulary becomes more and more stable. We present an approach for discovering topic-specific trends within folksonomies. It is based on a differential adaptation of the PageRank algorithm to the triadic hypergraph structure of a folksonomy. The approach allows for any kind of data, as it does not rely on the internal structure of the documents. In particular, this allows to consider different data types in the same analysis step. We run experiments on a large-scale real-world snapshot of a social bookmarking system.
David, Klaus ; Drögehorn, Olaf:Design Principles and Requirements of Future Service Platforms.. In: Proceedings of the 3rd International Symposium on Wireless Communication Systems 2006. Valencia, Spain : IEEE, 2006, pp. 164–168
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The vision of pervasive computing and communication will have an important impact on our lives. Following this vision, the goal for new business sectors will be to provide an easy way of creating and deploying different kinds of service environments. This paper introduces the requirements on and the problem of overall architectures for service execution environments and identifies an architectural approach, the requirements and design guidelines to built service execution environments and related platforms that are fully compatible to each other. The concepts presented in this paper have been developed by the Wireless World Research Forum (WWRF) Working Group 2 (WG2) and are under ongoing discussion.
Sandner, U. ; Leimeister, J. M. ; Krcmar, H.:Business potentials of ubiquitous computing.. In: Managing Development and Application of Digital Technologies : Springer, 2006, pp. 277–292
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Bohl, O. ; Manouchehri, S. ; Winand, U.:Alternatives to support processes of everyday life with mobile technologies.. In: Kotsis, G. ; Taniar, D. ; Pardede, E. ; Ibrahim, I. K. (eds.): The Fourth International Conference on Advances In Mobile Computing and Multimedia. Proceedings of MoMM 2006. vol. 215 : Austrian Computer Society, 2006, pp. 273–279
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Schmid, M. ; Geihs, K. (eds.):Self-Organisation in the Context of QoS-Management in Service Oriented Architectures, 13th Annual Workshop of HPOVUA, Cote d’Azur, 2006. — ISBN-13: 978-3-00-018780-3
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Köbler, F. ; Leimeister, J. M. ; Lugmayr, A.:Framework for Systematic and Strategic Planning of Innovation-based Mobile Broadband Services.. In: 14th Euromicro International Conference on Parallel, Distributed, and Network-Based Processing (PDP06). Washington, DC, USA, 2006. — EXT5
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Lamla, J. ; Neckel, S. (eds.):Politisierter Konsum – konsumierte Politik. Wiesbaden : VS-Verlag, 2006
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Neil, L. ; Hansen, D. ; Lindgaard, G. ; Kogan, S. ; Leimeister, J. M. ; Oakley, K. ; Selker, T.:SIG Online Health Communities.. In: CHI 2006. Montreal : ACM, 2006, p. 445
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Bohnet-Joschko, S. ; Bretschneider, U.: Online Health Communities: Eine empirische Untersuchung virtueller Gemeinschaften für Multiple Sklerose- und Diabetes Mellitus-Erkrankte. In: Gesundheitsökonomische Diskussionspapiere der Forschungsgruppe Nachhaltigkeit, Universität Witten/Herdecke (2006), Nr. 1
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Benz, Dominik ; Tso, Karen H. L. ; Schmidt-Thieme, Lars:Automatic Bookmark Classification - A Collaborative Approach.. In: Proceedings of the 2nd Workshop in Innovations in Web Infrastructure (IWI2) at WWW2006. Edinburgh, Scotland, 2006. — isbn = 085432853X
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Bookmarks (or Favorites, Hotlists) are a popular strategy to relocate interesting websites on the WWW by creating a personalized local URL repository. Most current browsers offer a facility to store and manage bookmarks in a hierarchy of folders; though, with growing size, users reportedly have trouble to create and maintain a stable taxonomy. This paper presents a novel collaborative approach to ease bookmark management, especially the “classification�? of new bookmarks into a folder. We propose a methodology to realize the collaborative classification idea of considering how similar users have classified a bookmark. A combination of nearest-neighbour-classifiers is used to derive a recommendation from similar users on where to store a new bookmark. Additionally, a procedure to generate keyword recommendations is proposed to ease the annotation of new bookmarks. A prototype system called CariBo has been implemented as a plugin of the central bookmark server software SiteBar. A case study conducted with real user data supports the validity of the approach.
Knebel, U. ; Leimeister, J. M. ; Krcmar, H.: Strategic importance of RFID - The perspective of IT decision makers in Italy. In: Journal of Information Technology Management vol. 17, Association of Management (2006), Nr. 4. — EXT26
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Knebel, U. ; Leimeister, J. M. ; Krcmar, H.:Strategic importance of RFID - The CIO perspective. An empirical analysis in Germany.. In: Americas Conference on Information Systems (AMCIS) 2006. Acapulco, 2006. — EXT25
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Schmitz, Christoph ; Hotho, Andreas ; Jäschke, Robert ; Stumme, Gerd:Content Aggregation on Knowledge Bases using Graph Clustering.. In: Sure, Y. ; Domingue, J. (eds.): The Semantic Web: Research and Applications, LNAI. vol. 4011. Heidelberg : Springer, 2006, pp. 530–544
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Recently, research projects such as PADLR and SWAP have developed tools like Edutella or Bibster, which are targeted at establishing peer-to-peer knowledge management (P2PKM) systems. In such a system, it is necessary to obtain provide brief semantic descriptions of peers, so that routing algorithms or matchmaking processes can make decisions about which communities peers should belong to, or to which peers a given query should be forwarded. This paper provides a graph clustering technique on knowledge bases for that purpose. Using this clustering, we can show that our strategy requires up to 58% fewer queries than the baselines to yield full recall in a bibliographic P2PKM scenario.
Schmitz, Christoph ; Hotho, Andreas ; Jäschke, Robert ; Stumme, Gerd:Mining Association Rules in Folksonomies.. In: Batagelj, V. ; Bock, H.-H. ; Ferligoj, A. ; v Ziberna, A. (eds.): Data Science and Classification: Proc. of the 10th IFCS Conf., Studies in Classification, Data Analysis, and Knowledge Organization. Berlin, Heidelberg : Springer, 2006, pp. 261–270
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2005[ to top ]

Andreas, S. ; Leimeister, J. M. ; Helmut, K.: Auf dem Weg zur integrierten Versorgung im Gesundheitswesen. In: Krankenhaus IT-Journal vol. 3 (2005), Nr. 1
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Geppert, M. ; Roßnagel, A. (eds.):TeleMediaR - Telekommunikations- und Multimediarecht, dtv-Textsammlung mit einer Einführung. sechste. : Beck, 2005
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Bleul, Steffen ; Weise, Thomas:An Ontology for Quality-Aware Service Discovery.. In: First International Workshop on Engineering Service Compositions (WESC’05), IBM Report RC23821, 2005, pp. 35–42
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Lamla, Jörn ; Jacob, Sven:Shopping im Internet. Anstöße für die kulturtheoretische Dimensionierung der Konsumsoziologie.. In: Hellmann, K.-U. ; Schrage, D. (eds.): Das Management der Kunden. Studien zur Soziologie des Shopping. Wiesbaden : VS-Verlag, 2005, pp. 196–217
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Herrmann, Klaus ; Mühl, Gero ; Geihs, Kurt: Self-Management: The Solution to Complexity or Just Another Problem?. In: IEEE Distributed Systems Online (DSOnline) vol. 6 (2005), Nr. 1
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Berendt, Bettina ; Hotho, Andreas ; Stumme, Gerd:Semantic Web Mining and the Representation, Analysis, and Evolution of Web Space.. In: Svatek, V. ; Snasel, V. (eds.): Proc. of the 1st Intl. Workshop on Representation and Analysis of Web Space : Technical University of Ostrava, 2005 — ISBN 80-248-0864-1, pp. 1–16
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Skubch, Hendrik ; Thielscher, Michael:Strategy Learning for Reasoning Agents.. In: Machine Learning: ECML 2005, 16th European Conference on Machine Learning, Porto, Portugal, October 3-7, 2005, Proceedings, Lecture Notes in Computer Science : Springer, 2005, pp. 733–740
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Arnold, Y. ; Leimeister, J. M. ; Daum, M. ; Krcmar, H.:Vorgehensmodell für das Community Platform Engineering.. In: Krcmar, H. ; Reichwald, R. ; Schlichter, J. ; Baumgarten, U. (eds.): Community Services: Healthcare. Lohmar : Eul-Verlag, 2005, pp. 67–110
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Lakhal, Lotfi ; Stumme, Gerd:Efficient Mining of Association Rules Based on Formal Concept Analysis.. In: Ganter, B. ; Stumme, G. ; Wille, R. (eds.): Formal Concept Analysis: Foundations and Applications, LNAI. vol. 3626. Heidelberg : Springer, 2005, pp. 180–195
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Association rules are a popular knowledge discovery technique for warehouse basket analysis. They indicate which items of the warehouse are frequently bought together. The problem of association rule mining has first been stated in 1993. Five years later, several research groups discovered that this problem has a strong connection to Formal Concept Analysis (FCA). In this survey, we will first introduce some basic ideas of this connection along a specific algorithm, titanic, and show how FCA helps in reducing the number of resulting rules without loss of information, before giving a general overview over the history and state of the art of applying FCA for association rule mining.
Berendt, B. ; Hotho, A. ; Mladenic, D. ; Semerano, G. ; Spiliopoulou, M. ; Stumme, G. ; van Someren, M. (eds.):Proc. of the European Web Mining Forum 2005, 2005
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Bohnet-Joschko, S. ; Abrolat, J. R. ; Bretschneider, U.: Effizienzsteigerung durch Wissensmanagement: Prozessoptimierung im Krankenhaus durch vernetztes Projektmanagement. In: Zeitschrift Führung und Organisation (ZFO) vol. 74 (2005), Nr. 5, pp. 289–295
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Geihs, Kurt: Mega-Trend Selbstorganisation. In: Praxis der Informationsverarbeitung und Kommunikation (PIK) vol. 28 (2005), Nr. 4, p. 188. — October-December 2005
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Leimeister, J. M. ; Krcmar, H.:Mobile Sportlerakte, 2005
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Leimeister, J. M. ; Krcmar, H.:Patient-oriented design of online support communities.. In: Proceedings of the 11th International Conference on Human-Computer Interaction (HCI-I 2005). Las Vegas, 2005
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Reichl, H. ; Roßnagel, A. ; Müller, G. (eds.):Digitaler Personalausweis. Eine Machbarkeitsstudie : Deutscher UniversitätsVerlag, 2005
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Leimeister, J. M. ; Krcmar, H.:Piloting IT-innovations - An approach to researching IT-innovations in complex real-world social settings.. In: Information Systems Research Methods (ISRM) - Workshop held in conjunction with International Conference on Information Systems (ICIS) 2005. Las Vegas : Association for Information Systems AIS, 2005
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Klein, Niklas ; Groppe, Sven ; Böttcher, Stefan ; Gruenwald, Le:A Prototype for Translating XQuery Expressions into XSLT Stylesheets.. In: Eder, J. ; Haav, H.-M. ; Kalja, A. ; Penjam, J. (eds.): ADBIS, Lecture Notes in Computer Science. vol. 3631 : Springer, 2005 — ISBN 3-540-28585-7, pp. 238–253
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Leimeister, J. M. ; Krcmar, H.:Evaluation der Akzeptanz und des Nutzens einer systematisch entwickelten Virtuellen Community für Krebspatienten.. In: Tagungsband der Konferenz Wirtschaftsinformatik. Bamberg : Physica-Verlag, 2005
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Leimeister, J. M. ; Krcmar, H.: Evaluation of a systematic design for a virtual patient community. In: Journal of Computer-Mediated Communication (JCMC) vol. 10 (2005), Nr. 4
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Leimeister, J. M. ; Krcmar, H.:Acceptance and utility of a systematically designed community for cancer patients.. In: Proceedings of the 2nd International Conference on Communities and Technologies. Milan, 2005
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Leimeister, J. M. ; Krcmar, H.: Das Internet der Dinge. In: Menschen und Informationstechnik (2005), Nr. 3
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Daum, M. ; Arnold, Y. ; Leimeister, J. M. ; Krcmar, H.:Evaluation virtueller Communities.. In: Krcmar, H. ; Reichwald, R. ; Schlichter, J. ; Baumgarten, U. (eds.): Community Services: Healthcare, 2005, pp. 183–222
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Schweizer, K. ; Leimeister, J. M. ; Krcmar, H.:Eine Exploration virtueller sozialer Beziehungen von Krebspatienten.. In: Arbeitspapier Nr. 5 des Lehrstuhl für Wirtschaftsinformatik der Technischen Universität München. München, Germany : Technische Universität München, 2005
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Daum, M. ; Arnold, Y. ; Leimeister, J. M. ; Krcmar, H.:Die virtuelle Community krebsgemeinschaft.de.. In: Krcmar, H. ; Reichwald, R. ; Schlichter, J. ; Baumgarten, U. (eds.): Community Services: Healthcare, 2005, pp. 283–304
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Dargie, Waltenegus ; Löffler, Tino ; Drögehorn, Olaf ; David, Klaus:Composition of Reusable Higher-level Context.. In: Proceedings of the 14th IST Mobile & Wireless Communications Summit. Dresden, Germany, 2005, pp. 1–5
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Capturing contextual information, especially higher-level contexts enables systems to understand and predict the behaviour of a mobile user. This kind of information is mostly implicit contexts, which abstract a complex state of a situation and can only partly be captured by employing sensors. Higher-level context has the potential to make user-application interaction richer, simpler, and more intuitive. However, composing higher-level contexts from explicit, atomic contexts requires complex and painstaking reasoning procedures to resolve uncertainty due to inconsistent sensor readings and incomplete information. In this paper, we introduce a new approach that assists application developers to take higher-level contexts into account without the need to know the details of atomic contexts. To demonstrate our approach, we will introduce the Context-Aware E-Pad (CAEP) we have designed and implemented. CAEP “observes” the user making a decision and associates with it a set of atomic contexts. Likewise, correlated decisions are mapped to similar associations. By repeatedly “observing” the user making decisions, CAEP can predict user’s wishes and behaviours.
Leimeister, J. M. ; Krcmar, H. ; Horsch, A. ; Kuhn, K.: Mobile IT-Systeme im Gesundheitswesen, mobile Systeme für Patienten. In: HMD Praxis der Wirtschaftsinformatik vol. 41 (2005), Nr. 244, pp. 74–85
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Leimeister, J. M. ; Krcmar, H. ; Sedlak, R. ; Stockklausner, C. ; Edelhäuser, M.:MPAS - ein mobiles Patientenassistenzsystem für krebskranke Jugendliche.. In: MoCoMed. Freiburg : Shaker Verlag GmbH, 2005, pp. 83–94
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Dargie, Waltenegus ; Löffler, Tino ; Drögehorn, Olaf ; David, Klaus:Architecture for Higher Level Context Composition.. In: Floréen, P. ; Lindén, G. ; Niklander, T. ; Raatikainen, K. (eds.): Proceedings of the Workshop on Context Awareness for Proactive Systems (CAPS), CAPS. Helsinki, Finland : HIIT Publications, 2005, pp. 183–187
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We propose a distributed architecture for composing implicit contexts out of numerous explicit context atoms. The explicit context atoms are gathered and aggregated at runtime from a computing envi- ronment, and may not initially be intended for a composition task. The architecture supports context-aware systems to reason about implicit contexts in the presence of uncertainty.
Atzmueller, Martin ; Vogele, Tobias ; Puppe, Frank:Visualization Techniques for Semi-Automatic Subgroup Mining.. In: Proceedings of the 29th Annual Conference of the German Classification Society (GfKl 2005), 2005. — Abstract
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Coutand, Olivier ; Drögehorn, Olaf ; David, Klaus ; Nurmi, Petteri ; Floreen, Patrik ; Kernchen, Ralf ; Holtmanns, Silke ; Campadello, Stefano ; et al.:Context-aware Group Management in Mobile Environments.. In: Proceedings of the 14th IST Mobile & Wireless Communications Summit. Dresden, Germany, 2005, pp. 1–6
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The paradigm for ubiquitous communication aims at enabling people to contact anyone anywhere and at anytime in a convenient way. Though, this promising vision is mainly addressed from the perspective of individual users. The IST project MobiLife furthers this mobile communications paradigm by developing new applications and services. In addition to the requirements of individual users, MobiLife also considers the needs and concerns of groups of users. This paper presents an architecture that allows the management of mobile groups in heterogeneous communication environments and provides them with context-aware services. The architecture presented has been developed by and proposed within the EU IST-511607 project MobiLife.
Bieber, Christoph ; Lamla, Jörn: Das Netz der Konsumenten. Innovationschancen der Verbraucherbewegung im Internet. In: Forschungsjournal Neue Soziale Bewegungen vol. 18 (2005), Nr. 4, pp. 65–77
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Jaeger, Michael C. ; Rojec-Goldmann, Gregor ; Mühl, Gero ; Liebetruth, Christoph ; Geihs, Kurt: Ranked Matching for Service Descriptions using OWL-S. In: Informatik Aktuell (2005), pp. 91–102. — In Paul Müller, Reinhard Gotzhein, and Jens B. Schmitt, editors, Kommunikation in verteilten Systemen (KiVS 2005), Kaiserslautern, Germany, February 2005. Springer.
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Drögehorn, Olaf ; David, Klaus:Design Principles for Future Service Platforms.. In: Proceedings of the Symposium on Applications and the Internet Workshops, SAINT Workshops 2007. Trento, Italy : IEEE, 2005, pp. 132–135
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The vision of pervasive computing and communication will shape the individual life in the future. Following this vision, the goal for new business sectors will be to provide an easy way of creating and deploying different kind of service environments. This paper introduces briefly the problem of overall architectures for service execution environments and identifies an architectural approach, the requirements and design guidelines to built service execution environments and related platforms that are fully compatible to each other. The concepts presented in this paper have been developed by the Wireless World Research Forum (WWRF) Working Group 2 (WG2) and are under permanent discussion in this forum.
Geihs, Kurt:Towards Model-Driven Management.. In: Marques, R. O. B. (ed.): Proceedings of the 12th Annual Workshop of HPOVUA 2005, 2005. — ISBN 972-9171-48-3
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Leimeister, J. M. ; Daum, M. ; Arnold, Y. ; Krcmar, H.:Nachhaltigkeit und Transferkonzept von krebsgmeinschaft.de - Geschäftsmodellkonzeption für eine virtuelle Patienten-Community.. In: Krcmar, H. ; Reichwald, R. ; Schlichter, J. ; Baumgarten, U. (eds.): Community Services: Healthcare, 2005, pp. 223–248
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Ganter, B. ; Stumme, G. ; Wille, R. (eds.):Formal Concept Analysis -- Foundations and Applications, LNAI. vol. 3626. Heidelberg : Springer, 2005
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Krcmar, H. ; Leimeister, J. M.:Potentials and benefits of patient communities from a German perspective.. In: Proceedings of the 11th International Conference on Human-Computer Interaction (HCI-I 2005). Las Vegas, 2005
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Fromm, Jochen ; Zapf, Michael ; Geihs, Kurt:Self-Organization in Distributed Business Systems.. In: Cunningham, P. ; Cunningham, M. (eds.): Innovation and the Knowledge Economy: Issues, Applications, Case Studies : IOS Press, 2005, pp. 169–176
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Fromm, Jochen ; Zapf, Michael: Selbst-Eigenschaften in verteilten Systemen. In: Praxis der Informationsverarbeitung und Kommunikation (PIK) vol. 2005 (2005), Nr. 4, pp. 189–198
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Leimeister, J. M. ; Universitätsverlag, D. (ed.):Virtuelle Communities für Patienten - Bedarfsgerechte Entwicklung, Einführung und Betrieb. Wiesbaden, Germany : Deutscher Universitätsverlag; ISBN: 978-3824482238, 2005
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Esch, S. ; Mauro, C. ; Weyde, F. ; Leimeister, J. M. ; Krcmar, H. ; Sedlak, R. ; Stockklausner, C. ; Kulozik, A.: Design und Test eines mobilen Assistenzsystems für krebskranke Jugendliche - Arbeitspapier Nr. 6. In: für Wirtschaftsinformatik Technische Universität München, L. (ed.) (2005)
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Leimeister, J. M. ; Böhmann, T. ; Krcmar, H.:Handbuch Technologie-& Innovationsmanagement - IT-Unterstützung bei der Innovationsentwicklung.. In: Albers, S. ; Gassmann, O. (eds.): : Gabler, 2005, pp. 323–340
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Leimeister, J. M. ; Böhmann, T. ; Krcmar, H.:Toolgestützte Workshops für die IT-Innovationsentwicklung als IT-Beratungsmodell.. In: Proceedings of Informatik 2005. Bonn : GI - Gesellschaft für Informatik, 2005, pp. 253–257
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Leimeister, J. M. ; Daum, M. ; Krcmar, H.:Pilotierung als Methode zur Erforschung des Community-Engineering.. In: Krcmar, H. ; Reichwald, R. ; Schlichter, J. ; Baumgarten, U. (eds.): Community Services: Healthcare : Eul-Verlag, 2005, pp. 19–45
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Drögehorn, Olaf ; David, Klaus:An Architectural Approach for building Platforms is still needed.. In: Proceedings of the 7th International Symposium on Autonomous Decentralized Systems. Chengdu, China : IEEE, 2005, pp. 118–120
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The vision of pervasive computing and communication will shape individual life in the future. Following this vision, the goal for new business sectors will be to provide an easy way of creating and deploying different kinds of service environments. This paper introduces briefly the problem of overall architectures for service execution environments and identifies an architectural approach, the requirements and design guidelines to built service execution environments and related platforms that are fully compatible with each other.
Leimeister, J. M. ; Ebner, W. ; Krcmar, H.: Design, implementation and evaluation of trust-supporting components in virtual communities for patients. In: Journal of Management Information Systems (JMIS) vol. 21 (2005), Nr. 4, pp. 101–135
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Pasquier, Nicolas ; Taouil, Rafik ; Bastide, Yves ; Stumme, Gerd ; Lakhal, Lotfi: Generating a Condensed Representation for Association Rules. In: Journal Intelligent Information Systems (JIIS) vol. 24, Kluwer Academic Publishers (2005), Nr. 1, pp. 29–60
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Roßnagel, A. ; Hammer, V.:Neukommentierung des § 5 SigV.. In: Roßnagel, A. (ed.): Recht der Multimedia-Dienste, Kommentar zum Informations- und Kommunikationsdienste-Gesetz und Mediendienste-Staatsvertrag. 7. Erg.-Lieferung. : Beck, 2005
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Themenschwerpunkt: „Unterschätzte Verbrauchermacht. Potenziale und Perspektiven der neuen Verbraucherbewegung. In: Lamla, J. (ed.) Forschungsjournal Neue Soziale Bewegungen vol. Jg. 18 (2005), Nr. Heft 4
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Leimeister, J. M. ; Knebel, U. ; Daum, M. ; Krcmar, H. ; Sedlak, R. ; Stockklausner, C. ; Edelhäuser, M. ; Buschmann, J. ; et al.:OnkoConnect - Exploration mobiler Informationssysteme zur Verbesserung der Lebensqualität krebskranker Jugendlicher.. In: Krcmar, H. ; Reichwald, R. ; Schlichter, J. ; Baumgarten, U. (eds.): Community Services: Healthcare : Eul-Verlag, 2005, pp. 249–282
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Leimeister, J. M. ; Knebel, U. ; Krcmar, H.:Exploring mobile information systems for adolescent cancer patients.. In: Proceedings of the 11th International Conference on Human-Computer Interaction (HCI-I 2005). Las Vegas, 2005
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Roßnagel, A. (ed.):Neuordnung des Medienrechts: Neuer rechtlicher Rahmen für eine konvergente Technik?. vol. 30 : Nomos, 2005
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Drögehorn, Olaf ; Wüst, Björn ; David, Klaus:Personalised Applications and Services for a mobile user.. In: Proceedings of the 7th International Symposium on Autonomous Decentralized Systems. Chengdu, China : IEEE, 2005, pp. 473–479
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Personalisation provides a convenient means to ease the use of pervasive computing systems and related services. Profiles are one of the major building blocks for making real personalisation happen. In the existing heterogeneous and upcoming pervasive computing environment typically numerous different profiles are used and maintained by the user or different services, devices or operators. In order to avoid multiple copies of the same data profile synchronisation and linking should be used and applied between the different locations and administrative domains, in which the different types of profiles reside. But keeping in mind the different contexts', in which these profiles have been constructed, it is mostly unknown how to match the meaning of one profile to another or how to harmonize the different kind of values in the different profiles. In this paper, mechanisms for efficient synchronisation of profiles based on semantic distinctions are introduced. By using ontology's to distinguish between semantic entities profiles can be kept synchronous even using low-bandwidth radio links and mobile devices like smart-phones and PDAs.
Drögehorn, Olaf ; Haseloff, Sandra ; Löffler, Tino ; Dargie, Waltenegus ; Lau, Sian Lun ; David, Klaus:Context awareness in I-centric systems - Dynamic Context Learning Using a Rule-Based Approach -.. In: Proceedings of the International Conference on Intelligent Sensors, Sensor Networks and Information Processing. Melbourne, Australia : IEEE, 2005, pp. 211–216
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Capturing contextual information, especially higher-level contexts, enables systems to understand and predict the behaviour of a mobile user. This kind of information is mostly implicit, abstracting a complex state of a situation, and can only partly be captured by sensors. Higher-level context has the potential to make user applications simpler and more intuitive. However, composing higher-level contexts from explicit, atomic contexts requires complex procedures to be used and uncertainty due to inconsistent sensor readings and incomplete information to be reduced. In this paper, we introduce a new approach that assists application developers to take higher-level contexts into account without the need to know the details of atomic contexts. To demonstrate our approach, we will introduce the Context-Aware E-Pad (CAEP) we have designed and implemented.
Roßnagel, A. ; Schmücker, P. (eds.):Beweiskräftige elektronische Archivierung - Bieten elektronische Signaturen Rechtssicherheit? : Economica, 2005
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