Publications

2025[ to top ]

Preface: Special issue on ITC 2023.Alouf, Sara; Hohlfeld, Oliver; Jiang, Zhiyuan. In Perform. Evaluation, 167, S. 102462. 2025.
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@article{journals/pe/AloufHJ25, author = {Alouf, Sara and Hohlfeld, Oliver and Jiang, Zhiyuan}, journal = {Perform. Evaluation}, keywords = {ds}, pages = 102462, title = {Preface: Special issue on ITC 2023.}, volume = 167, year = 2025 }
DDoS on Repeat: Measuring Pulse-Wave DDoS in the Wild.Kopp, Daniel; Hohlfeld, Oliver. In ITC-36, S. 1–9. IEEE, 2025.
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@inproceedings{conf/teletraffic/KoppH25, author = {Kopp, Daniel and Hohlfeld, Oliver}, booktitle = {ITC-36}, crossref = {conf/teletraffic/2025}, keywords = {itegpub}, pages = {1-9}, publisher = {IEEE}, title = {DDoS on Repeat: Measuring Pulse-Wave DDoS in the Wild.}, year = 2025 }
DDoS in Balance: Globale Angriffsdynamik und Mitigation.Kopp, Daniel. S. 151–160. Gesellschaft für Informatik e.V., Bonn, 2025.
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@misc{misc, address = {Bonn}, author = {Kopp, Daniel}, howpublished = {Ausgezeichnete Informatikdissertationen 2024 (Band 25)}, keywords = {itegpub}, pages = {151–160}, publisher = {Gesellschaft für Informatik e.V.}, title = {DDoS in Balance: Globale Angriffsdynamik und Mitigation.}, year = 2025 }
Data Centers Manufacturing Steel: Rethinking Industrial Networks in the Age of IT.Mitsakis, Nikolaos; Reisacher, Marco; Eichholz, Matthias; Breiting, Yannic; Albrecht, Harald; Blenk, Andreas; Hohlfeld, Oliver. In HotNets, S. 85–95. ACM, 2025.
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@inproceedings{conf/hotnets/MitsakisR0BABH25, author = {Mitsakis, Nikolaos and Reisacher, Marco and Eichholz, Matthias and Breiting, Yannic and Albrecht, Harald and Blenk, Andreas and Hohlfeld, Oliver}, booktitle = {HotNets}, crossref = {conf/hotnets/2025}, keywords = {itegpub}, pages = {85-95}, publisher = {ACM}, title = {Data Centers Manufacturing Steel: Rethinking Industrial Networks in the Age of IT.}, year = 2025 }
TraffIX: Monitoring Global Internet Traffic Trends by Crawling IXP Statistics.Alhamwy, Yasin; Hohlfeld, Oliver. In ACM SIGCOMM Workshop on Next-Generation Network Observability (NGNO). ACM, 2025.
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@inproceedings{TraffIX, author = {Alhamwy, Yasin and Hohlfeld, Oliver}, booktitle = {ACM SIGCOMM Workshop on Next-Generation Network Observability (NGNO)}, keywords = {itegpub}, publisher = {ACM}, title = {TraffIX: Monitoring Global Internet Traffic Trends by Crawling IXP Statistics}, year = 2025 }
DDoS equilibrium: Internet measurement perspective on attacks and mitigation.. Technical Report (PhD dissertation), . Kopp, Daniel. PhD dissertation. University of Kassel, Germany, 2025.
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@phdthesis{phd/dnb/Kopp25, author = {Kopp, Daniel}, keywords = {itegpub}, school = {University of Kassel, Germany}, title = {DDoS equilibrium: Internet measurement perspective on attacks and mitigation.}, year = 2025 }
Crawling Alice Looking Glasses at IXPs to Quantify BGP Route Diversity.Alhamwy, Yasin; Khoulani, Bashar; Hohlfeld, Oliver. In SIGCOMM (Posters and Demos), S. 121–123. ACM, 2025.
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@inproceedings{conf/sigcomm/AlhamwyKH25, author = {Alhamwy, Yasin and Khoulani, Bashar and Hohlfeld, Oliver}, booktitle = {SIGCOMM (Posters and Demos)}, crossref = {conf/sigcomm/2025pd}, keywords = {itegpub}, pages = {121-123}, publisher = {ACM}, title = {Crawling Alice Looking Glasses at IXPs to Quantify BGP Route Diversity.}, year = 2025 }
Power Out, Internet Down? Measuring Internet Resilience in South Africa.Alhamwy, Yasin; Alshebane, Abdalmohimn; Hohlfeld, Oliver. In ACM Internet Measurement Conference Poster. 2025.
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@inproceedings{SAResilience, author = {Alhamwy, Yasin and Alshebane, Abdalmohimn and Hohlfeld, Oliver}, booktitle = {ACM Internet Measurement Conference Poster}, keywords = {itegpub}, title = {Power Out, Internet Down? Measuring Internet Resilience in South Africa}, year = 2025 }
Beyond IP: Amateur Radio PSKReporter as a Crisis Measurement Tool.Alhamwy, Yasin; Hohlfeld, Oliver. In ACM Internet Measurement Conference Poster. 2025.
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@inproceedings{PSKReporterCrisis, author = {Alhamwy, Yasin and Hohlfeld, Oliver}, booktitle = {ACM Internet Measurement Conference Poster}, keywords = {itegpub}, title = {Beyond IP: Amateur Radio PSKReporter as a Crisis Measurement Tool}, year = 2025 }
Industrial Views on DevOps Adoption Before and After Implementation: A Qualitative Comparison.Copei, Sebastian; Hohlfeld, Oliver; Kosiol, Jens. In ECSA (Tracks and Workshops), Bd. 15982 von Lecture Notes in Computer Science, D. Bianculli, H. Sartaj, V. Andrikopoulos, C. Pautasso, T. Mikkonen, J. Pérez, T. Bures, M. D. Sanctis, H. Muccini, E. Navarro, M. Soliman, U. Zdun (Hrsg.), S. 202–211. Springer, 2025.
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@inproceedings{conf/ecsa/CopeiHK25, author = {Copei, Sebastian and Hohlfeld, Oliver and Kosiol, Jens}, booktitle = {ECSA (Tracks and Workshops)}, crossref = {conf/ecsa/2025w}, editor = {Bianculli, Domenico and Sartaj, Hassan and Andrikopoulos, Vasilios and Pautasso, Cesare and Mikkonen, Tommi and Pérez, Jennifer and Bures, Tomás and Sanctis, Martina De and Muccini, Henry and Navarro, Elena and Soliman, Mohamed and Zdun, Uwe}, keywords = {itegpub}, pages = {202-211}, publisher = {Springer}, series = {Lecture Notes in Computer Science}, title = {Industrial Views on DevOps Adoption Before and After Implementation: A Qualitative Comparison.}, volume = 15982, year = 2025 }

2024[ to top ]

Poster: Web Dependency Analyzer to Identify Resource Dependencies and their Impact on Rendering.Alhamwy, Yasin; Mertens, Paul; Hohlfeld, Oliver. In Proceedings of the 2024 ACM on Internet Measurement Conference, von IMC ’24, S. 793–794. Association for Computing Machinery, Madrid, Spain, 2024.
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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.
@inproceedings{Alhamwy2024, abstract = {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.}, address = {New York, NY, USA}, author = {Alhamwy, Yasin and Mertens, Paul and Hohlfeld, Oliver}, booktitle = {Proceedings of the 2024 ACM on Internet Measurement Conference}, keywords = {itegpub}, month = 11, pages = {793–794}, publisher = {Association for Computing Machinery}, series = {IMC '24}, title = {Poster: Web Dependency Analyzer to Identify Resource Dependencies and their Impact on Rendering}, year = 2024 }
The Age of DDoScovery: An Empirical Comparison of Industry and Academic DDoS Assessments.Hiesgen, Raphael; Nawrocki, Marcin; Barcellos, Marinho P.; Kopp, Daniel; Hohlfeld, Oliver; Chan, Echo; Dobbins, Roland; Doerr, Christian; Rossow, Christian; Thomas, Daniel R.; Jonker, Mattijs; Mok, Ricky K. P.; Luo, Xiapu; Kristoff, John; Schmidt, Thomas C.; Wählisch, Matthias; claffy, kc. In CoRR, Bd. abs/2410.11708. 2024.
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@conference{journals/corr/abs-2410-11708, author = {Hiesgen, Raphael and Nawrocki, Marcin and Barcellos, Marinho P. and Kopp, Daniel and Hohlfeld, Oliver and Chan, Echo and Dobbins, Roland and Doerr, Christian and Rossow, Christian and Thomas, Daniel R. and Jonker, Mattijs and Mok, Ricky K. P. and Luo, Xiapu and Kristoff, John and Schmidt, Thomas C. and Wählisch, Matthias and kc claffy}, journal = {CoRR}, keywords = {ds}, title = {The Age of DDoScovery: An Empirical Comparison of Industry and Academic DDoS Assessments.}, volume = {abs/2410.11708}, year = 2024 }
SEAL-CC: Scalable Latency Evaluation Methodology for Internet-of-Things Services.Horvath, Kurt Klaus; Kimovski, Dragi; Spiess, Bernd; Hohlfeld, Oliver; Prodan, Radu. In IoT, E. Peltonen, S. Hyrynsalmi, I. Wagner, J. S. Rellermeyer, N. Mohan (Hrsg.), S. 117–126. ACM, 2024.
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@inproceedings{conf/iot/HorvathKSHP24, author = {Horvath, Kurt Klaus and Kimovski, Dragi and Spiess, Bernd and Hohlfeld, Oliver and Prodan, Radu}, booktitle = {IoT}, crossref = {conf/iot/2024}, editor = {Peltonen, Ella and Hyrynsalmi, Sami and Wagner, Isabel and Rellermeyer, Jan S. and Mohan, Nitinder}, keywords = {ds}, pages = {117-126}, publisher = {ACM}, title = {SEAL-CC: Scalable Latency Evaluation Methodology for Internet-of-Things Services.}, year = 2024 }
IPD: Detecting Traffic Ingress Points at ISPs.Mehner, Stefan; Reelfs, Helge; Poese, Ingmar; Hohlfeld, Oliver. In SIGCOMM, S. 778–793. ACM, 2024.
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@inproceedings{conf/sigcomm/MehnerRPH24, author = {Mehner, Stefan and Reelfs, Helge and Poese, Ingmar and Hohlfeld, Oliver}, booktitle = {SIGCOMM}, crossref = {conf/sigcomm/2024}, keywords = {ds}, pages = {778-793}, publisher = {ACM}, title = {IPD: Detecting Traffic Ingress Points at ISPs.}, year = 2024 }
Reviewing War: Unconventional User Reviews as a Side Channel to Circumvent Information Controls.Moreno, José Miguel; Pastrana, Sergio; Reelfs, Jens Helge; Vallina, Pelayo; Zannettou, Savvas; Panchenko, Andriy; Smaragdakis, Georgios; Hohlfeld, Oliver; Vallina-Rodriguez, Narseo; Tapiador, Juan. In ICWSM, Y.-R. Lin, Y. Mejova, M. Cha (Hrsg.), S. 1082–1095. AAAI Press, 2024.
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@inproceedings{conf/icwsm/MorenoPRVZ0SHVT24, author = {Moreno, José Miguel and Pastrana, Sergio and Reelfs, Jens Helge and Vallina, Pelayo and Zannettou, Savvas and Panchenko, Andriy and Smaragdakis, Georgios and Hohlfeld, Oliver and Vallina-Rodriguez, Narseo and Tapiador, Juan}, booktitle = {ICWSM}, crossref = {conf/icwsm/2024}, editor = {Lin, Yu-Ru and Mejova, Yelena and Cha, Meeyoung}, keywords = {ds}, pages = {1082-1095}, publisher = {AAAI Press}, title = {Reviewing War: Unconventional User Reviews as a Side Channel to Circumvent Information Controls.}, year = 2024 }
DEMO: P4PLC: How Dynamic In-Network Control Enables an Interruption-free Migration of vPLCs.Mitsakis, Nikolaos; Blenk, Andreas; Hohlfeld, Oliver. In SIGCOMM (Posters and Demos), S. 95–97. ACM, 2024.
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@inproceedings{conf/sigcomm/MitsakisBH24, author = {Mitsakis, Nikolaos and Blenk, Andreas and Hohlfeld, Oliver}, booktitle = {SIGCOMM (Posters and Demos)}, crossref = {conf/sigcomm/2024pd}, keywords = {ds}, pages = {95-97}, publisher = {ACM}, title = {DEMO: P4PLC: How Dynamic In-Network Control Enables an Interruption-free Migration of vPLCs.}, year = 2024 }
Low-code vs. the developer: An empirical study on the developer experience and efficiency of a no-code platform.Guthardt, Till; Kosiol, Jens; Hohlfeld, Oliver. In MoDELS (Companion), M. Wimmer, A. Egyed, B. Combemale, M. Chechik (Hrsg.), S. 856–865. ACM, 2024.
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@inproceedings{conf/models/GuthardtKH24, author = {Guthardt, Till and Kosiol, Jens and Hohlfeld, Oliver}, booktitle = {MoDELS (Companion)}, crossref = {conf/models/2024c}, editor = {Wimmer, Manuel and Egyed, Alexander and Combemale, Benoît and Chechik, Marsha}, keywords = {ds}, pages = {856-865}, publisher = {ACM}, title = {Low-code vs. the developer: An empirical study on the developer experience and efficiency of a no-code platform.}, year = 2024 }

2023[ to top ]

Persistent UAV Formation Flight by Dynamic Agent Replacement and Leader Selection.Bauer, Maximilian; Alhamwy, Yasin; Geihs, Kurt. In Progressive and Integrative Ideas and Applications of Engineering Systems Under the Framework of IOT and AI, Y. Ma (Hrsg.), S. 106–117. Springer Nature Singapore, Singapore, 2023.
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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.
@inproceedings{Maximilian2023, abstract = {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.}, address = {Singapore}, author = {Bauer, Maximilian and Alhamwy, Yasin and Geihs, Kurt}, booktitle = {Progressive and Integrative Ideas and Applications of Engineering Systems Under the Framework of IOT and AI}, editor = {Ma, Yongsheng}, keywords = {itegpub}, pages = {106–117}, publisher = {Springer Nature Singapore}, title = {Persistent UAV Formation Flight by Dynamic Agent Replacement and Leader Selection}, year = 2023 }
An overview of analysis methods and evaluation results for caching strategies.Hasslinger, Gerhard; Okhovatzadeh, Mahshid; Ntougias, Konstantinos; Hasslinger, Frank; Hohlfeld, Oliver. In Comput. Networks, 228, S. 109583. 2023.
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@article{DBLP:journals/cn/HasslingerONHH23, author = {Hasslinger, Gerhard and Okhovatzadeh, Mahshid and Ntougias, Konstantinos and Hasslinger, Frank and Hohlfeld, Oliver}, journal = {Comput. Networks}, keywords = {ds}, pages = 109583, title = {An overview of analysis methods and evaluation results for caching strategies}, volume = 228, year = 2023 }

Publications

Past Publications