Prof. Dr. Jürgen Pfeffer

Professor of Computational Social Science, School of Social Sciences and Technology | Technical University of Munich

juergen.pfeffer@tum.de
Profile
Participations and Contributions
Publications
Participations and Contributions
All posts
Digital politics

Development of AI-supported conversation training to foster democratic exchange (DemocraGPT)

Project

The research project DemocraGPT examines how large language models can support people in challenging political conversations, reduce reactance, and strengthen democratic conversational culture.

Digital public sphere

Understanding, detecting, and mitigating online misogyny against politically active women (Misogyny 2.0)

Project

Radicalisation, hate speech and hostility towards politically active women are on the rise. The project examined the content and dynamics of extreme speech in order to better understand it and identify it at an early stage.

Publications

  • Schirmer, Miriam; Voggenreiter, Angelina; Pfeffer, Jürgen; Horvat, Agnes (2025)

    Detecting Child Objectification on Social Media: Challenges in Language Modeling

    Conference paper
    Association for Computational Linguistics, Proceedings of the The 9th Workshop on Online Abuse and Harms (WOAH), P. 396-412, Wien, Österreich
    https://aclanthology.org/2025.woah-1.36/
    Project: GC-Postdoc
  • Ralev, Radoslav; Pfeffer, Jürgen (2022)

    Hate Speech Classification in Bulgarian

    Conference paper
    Proceedings of the 5th International Conference on Computational Linguistics in Bulgaria (CLIB 2022)
    Project: Misogyny_2.0
  • Strathern, Wienke; Pfeffer, Jürgen (2023)

    Identifying Different Layers of Online Misogyny

    Conference paper
    Workshop Proceedings of the 17th International AAAI Conference on Web and Social Media, P. 1-10
    DOI: 10.36190/2023.54
    Project: Misogyny_2.0
  • Strathern, Wienke; Pfeffer, Jürgen (2023)

    Identifying Different Layers of Online Misogyny

    Conference paper
    Workshop Proceedings of the 17th International AAAI Conference on Web and Social Media (ICWSM)
    DOI: 10.36190/2023.54
    Project: Misogyny_2.0
  • Strathern, Wienke; Ghawi, Raji; Schönfeld, Mirco; Pfeffer, Jürgen (2022)

    Identifying lexical change in negative word-of-mouth on social media

    Journal article
    Social Network Analysis and Mining
    Project: Misogyny_2.0
  • Koch, Luise; Ghawi, Raji; Pfeffer, Jürgen; Steinert, Janina Isabel (2025)

    Online misogyny against female candidates in the 2022 Brazilian elections: a threat to women’s political representation?

    Journal article
    Taylor and Francis, Information, Communication & Society, P. 1-21
    https://doi.org/10.1080/1369118X.2025.2551604
    Project: Misogyny_2.0
  • Koch, Luise; Ghawi, Raji; Pfeffer, Jürgen; Steinert, Janina (2023)

    Online Misogyny Against Female Candidates in the 2022 Brazilian Elections: A Threat to Women’s Political Representation?

    Journal article
    Under Review
    Project: Misogyny_2.0
  • Falkenberg, Max; Zollo, Fabiana; Quattrociocchi, Walter; Pfeffer, Jürgen; Baronchelli, Andrea (2024)

    Patterns of partisan toxicity and engagement reveal the common structure of online political communication across countries.

    Journal article
    Nature Communications, Volume: 15
    DOI: 10.1038/s41467-024-53868-0
    Project: Misogyny_2.0
  • Steinert, Janina; Koch, Luise; Pfeffer, Jürgen (2023)

    Policy Brief: Online Hate against Members of the European Parliament

    Grey literature / report
    https://www.hfp.tum.de/fileadmin/w00cjd/globalhealth/_my_direct_uploads/EUP_OnlineHate__3_.pdf
    Project: Misogyny_2.0
  • Tibau, Jordi; Voggenreiter, Angelina; Pfeffer, Jürgen (2025)

    Prevalence, Substance and Responses to Hate Speech Against LGBTQ Communities on TikTok

    Conference paper
    AAAI, Proceedings of the Nineteenth International AAAI Conference on Web and Social Media, P. 430-442
    https://doi.org/10.1609/icwsm.v19i1.35824
    Project: Misogyny_2.0
  • Strathern, Wienke; Mooseder, Angelina; Pfeffer, Jürgen (2022)

    The Polarizing Impact of Continuous Presence on Users’ Behavior

    Conference paper
    Proceedings of the 16th International AAAI Conference on Web and Social Media
    Project: Misogyny_2.0
  • Voggenreiter, Angelina; Brandt, Sophie; Putterer, Fabian; Frings, Andreas; Pfeffer, Juergen (2024)

    The Role of Likes: How Online Feedback Impacts Users’ Mental Health

    Conference paper
    Association for Computing Machinery, Proceedings of the 16th ACM Web Science Conference, P. 302-310
    DOI: 10.1145/3614419.3643995
    Project: Misogyny_2.0
  • Voggenreiter, Angelina; Brandt, Sophie; Putterer, Fabian; Frings, Andreas; Pfeffer, Jürgen (2024)

    The Role of Likes: How Online Feedback Impacts Users’ Mental Health

    Conference paper
    ACM, Proceedings of the 16th ACM Web Science Conference, P. 302-310
    https://doi.org/10.1145/3614419.364399
    Project: Misogyny_2.0