Oliver Hohlfeld

Oliver Hohlfeld is a Professor at the University of Kassel where he leads the Distributed Systems Group. Prior academic appointments include professorships at Brandenburg University of Technology (heading the Computer Networks group) and RWTH Aachen University, with earlier work at TU Berlin/Deutsche Telekom Innovation Laboratories. He has served as visiting scholar at University of Wisconsin-Madison (Paul Barford's group) and holds a Dr. rer. nat. in Computer Science (2013) from TU Berlin under advisor Anja Feldmann.

• B.Sc. and M.Sc. in Computer Science from Darmstadt University of Applied Sciences, Institute Eurecom, and Darmstadt University of Technology
• Former Fraunhofer IGD researcher (2004-2006) working on telemedical network architectures

His research interests focus on data-driven analysis of internet performance and security through empirical network measurement, psychological user studies, and machine learning. Key areas include DDoS defense mechanisms, TLS deployment analysis, social media interaction patterns, caching strategies, and internet protocol evaluation (HTTP/2, QUIC, BGP). Recent work examines cross-border information control circumvention through unconventional user reviews.

Oliver has served on technical program committees for 25+ conferences including SIGCOMM'24, NSDI'25, and IMC'24. His scientific leadership includes:

• 2022 IETF/IRTF Applied Networking Research Prize
• 2020 ACM Senior Member status
• 2018-2021 conference co-chair roles

He leads major research projects:

• AIDOS: AI-based DDoS Mitigation at DE-CIX Internet Exchange (BMBF funded)
• DFG SFB 1053 MAKI: Multi-Mechanism Internet Adaptation (2017-2020)
• EU Horizon 2020 SSICLOPS: Secure Cloud Operations
• Internet Observatory Initiative