Cottbus, DE
Career
Senior Scientific Researcher
Computational Social Science
Computational Linguistics
Computer Networks
Teaching
Supervision
Strategic Projects
Infrastructure
Coffee
Projects
Publications
IPD: Detecting Traffic Ingress Points at ISPs
Stefan Mehner , Jens Helge Reelfs , Ingmar Poese , Oliver Hohlfeld
ACM Special Interest Group on Data Communication
Reviewing War: Unconventional User Reviews as a Side Channel to Circumvent Information Controls
José Miguel Moreno , Sergio Pastrana , Jens Helge Reelfs , Pelayo Vallina , Savvas Zannettou , Andriy Panchenko , Georgios Smaragdakis , Oliver Hohlfeld , Narseo Vallina-Rodriguez , Juan Tapiador
International AAAI Conference on Web and Social Media
Content & User Behavior in Anonymous Hyperlocal Online Platforms
Jens Helge Reelfs
Dr. rer. nat. Thesis
Reviewing War: Unconventional User Reviews as a Side Channel to Circumvent Information Controls (techreport)
José Miguel Moreno , Sergio Pastrana , Jens Helge Reelfs , Pelayo Vallina , Andriy Panchenko , Georgios Smaragdakis , Oliver Hohlfeld , Narseo Vallina-Rodriguez , Juan Tapiador
arxiv
Data-Driven Study of Long-Term Gaming Experience
Jens Helge Reelfs , Oliver Hohlfeld
International Conference on Quality of Multimedia Experience
Interpreting Emoji with Emoji: 🏖️ => ☀️😎🌊
Jens Helge Reelfs , Timon Mohaupt , Sandipan Sikdar , Markus Strohmaier , Oliver Hohlfeld
Workshop on Emoji Understanding and Applications in Social Media at NAACL-HLT
Characterizing the country-wide adoption and evolution of the Jodel messaging app in Saudi Arabia
Jens Helge Reelfs , Oliver Hohlfeld , Markus Strohmaier , Niklas Henckell
The Journal of Web Science
Anonymous Hyperlocal Communities: What do they talk about?
Jens Helge Reelfs , Oliver Hohlfeld , Niklas Henckell
International Workshop on Location and the Web at WWW
Differences in Social Media Usage Exist Between Western and Middle-East Countries
Jens Helge Reelfs , Oliver Hohlfeld , Niklas Henckell
Passive and Active Measurement Conference
Understanding & Predicting User Lifetime with Machine Learning in an Anonymous Location-Based Social Network
Jens Helge Reelfs , Max Bergmann , Oliver Hohlfeld , Niklas Henckell
International Workshop on Location and the Web at WWW
Corona-Warn-App: Tracing the Start of the Official COVID-19 Exposure Notification App for Germany
Jens Helge Reelfs , Oliver Hohlfeld , Ingmar Poese
ACM Special Interest Group on Data Communication - Poster
Word-Emoji embeddings from large scale messaging data reflect real world semantic associations of expressive icons
Jens Helge Reelfs , Oliver Hohlfeld , Markus Strohmaier , Niklas Henckell
ICWSM Workshop on Emoji Understanding and Applications in Social Media
Service to the Community
ACM International Conference on emerging Networking EXperiments and Technologies
Artifact Evaluation
Teaching
Mini Internet Platform
Prof. Dr. Oliver Hohlfeld
Created by the Networked Systems Group from ETHZ, code available on GitHub
Supervision
Modeling Malicous Content via LLMs on the Jodel OSN
Leon Wolter
Brandenburg University of Technology
Emoji-Enhanced Interpretable Word Embeddings
Timon Mohaupt
RWTH Aachen University
Predicting Churn on the Jodel OSN
Max Bergmann
Best Faculty's Bachelor ThesisBrandenburg University of Technology
References
Prof. Dr. Oliver Hohlfeld
Line/Personnel Manager
University of KasselProf. Dr. Markus Strohmaier
Scientific Cooperation
Mannheim Business SchoolProf. Dr. Stella Neumann
Scientific & Project Cooperation
RWTH Aachen University