Prof. Dr. Felix Naumann

Julian Risch

I am a Ph.D. student at the Information Systems Group and a member of the HPI Research School. My research focuses on cross-collection text mining and topic modeling.

Contact Information

Prof.-Dr.-Helmert-Straße 2-3
D-14482 Potsdam
Room: G-3.2.08

Phone: +49 331 5509 272

Email: Julian Risch

Open Master's Theses

I provide supervision for an open Master's thesis on Natural Language Processing for Information Retrieval, which is described here.



  • naaclhlt2018.pdf
    Ambroselli, C., Risch, J., Krestel, R., Loos, A.: Prediction for the Newsroom: Which Articles Will Get the Most Comments? 16th Annual Conference of the North American Chapter of the Association for Computational Linguistics (NAACL 2018). ACL, New Orleans, Louisiana, USA (2018).
  • entropy-based_topic_model.pdf
    Risch, J., Krestel, R.: My Approach = Your Apparatus? Entropy-Based Topic Modeling on Multiple Domain-Specific Text Collections. Proceedings of the 18th ACM/IEEE Joint Conference on Digital Libraries (JCDL) (2018).
  • Real or Fake - Large-Scale Validation of Identity Leaks.pdf
    Maschler, F., Niephaus, F., Risch, J.: Real or Fake? Large-Scale Validation of Identity Leaks. 47. Jahrestagung der Gesellschaft für Informatik (INFORMATIK). bll. 2437-2448 (2017).
  • llncs.pdf
    Krestel, R., Risch, J.: How Do Search Engines Work? A Massive Open Online Course with 4000 Participants. Proceedings of the Conference Lernen, Wissen, Daten, Analysen. bll. 259-271 (2017).
  • What Should I Cite? Cross-Collection Reference Recommendation of Patents and Papers.pdf
    Risch, J., Krestel, R.: What Should I Cite? Cross-Collection Reference Recommendation of Patents and Papers. Proceedings of the International Conference on Theory and Practice of Digital Libraries (TPDL). bll. 40-46 (2017).
  • fd_paper.pdf
    Bleifuß, T., Bülow, S., Frohnhofen, J., Risch, J., Wiese, G., Kruse, S., Papenbrock, T., Naumann, F.: Approximate Discovery of Functional Dependencies for Large Datasets. Proceedings of the International Conference on Information and Knowledge Management (CIKM). bll. 1803-1812. ACM, New York, NY, USA (2016).
  • Social Media Story Telling.pdf
    Hennig, P., Berger, P., Dullweber, C., Finke, M., Maschler, F., Risch, J., Meinel, C.: Social Media Story Telling. Proceedings of the 8th IEEE International Conference on Social Computing and Networking (SocialCom2015). , Chengdu, China (2015).
  • Ergonomic Interaction on Touch Floors.pdf
    Schmidt, D., Frohnhofen, J., Knebel, S., Meinel, F., Perchyk, M., Risch, J., Striebel, J., Wachtel, J., Baudisch, P.: Ergonomic Interaction for Touch Floors. Proceedings of the 33rd Annual ACM Conference on Human Factors in Computing Systems. bl. 3879--3888. ACM, Seoul, Republic of Korea (2015).