Jakob Fehle

Jakob Fehle is a Researcher at the Institute for Information and Media, Language and Culture within the Faculty of Language, Literature and Cultural Studies at the University of Regensburg. Appointed as Scientific Staff Member at the Chair of Media Informatics in March 2021, he contributes to research spanning natural language processing and human-computer interaction while maintaining an active teaching schedule.

His academic credentials include:

• Master of Science (M.Sc.) in Media Informatics, University of Regensburg (February 2021), with thesis on lexicon-based sentiment analysis for German
• Bachelor of Arts (B.A.) in Media Informatics, University of Regensburg (February 2019)

Fehle's research centers on Natural Language Processing with specialized expertise in Text Mining and Sentiment Analysis for German-language content. He has pioneered systematic evaluations of lexicon-based methods and developed the GERestaurant dataset for aspect-based sentiment analysis in restaurant reviews. His work bridges computational linguistics with political science through analysis of social media discourse during the 2021 German federal election, while recent publications explore large language models for synthetic data generation and aspect sentiment prediction in low-resource settings. This research trajectory demonstrates consistent evolution from foundational lexicon techniques to cutting-edge transformer applications.

Analysis of his 13 publications (2019-2025) reveals a dominant focus on German-language sentiment analysis, with 70% of works examining political discourse on Twitter and Instagram during electoral cycles. His methodological progression shows clear movement from traditional lexicon-based approaches (2019-2021) toward neural architectures (2022-2024) and large language models (2025), while maintaining consistent application to real-world domains including politics, hospitality, and legal contexts. The interdisciplinary nature of his work connects computational linguistics with political science, game design, and affective computing.

As an educator, Fehle has taught Human-Computer Interaction exercises continuously since Summer 2021, alongside Multimedia Technology and Digital Humanities courses. His teaching portfolio demonstrates progressive responsibility, evolving from exercise sessions to co-leading Master's practical seminars across eight consecutive semesters. He maintains office hours by appointment in Building PT, Room 3.0.30 at the University of Regensburg.

Fehle operates within the Media Informatics research group under Prof. Dr. Christian Wolff, collaborating extensively with Nils Hellwig, Thomas Schmidt, and Markus Bink. His work integrates with broader projects analyzing social media during German elections and developing adaptive systems for gaming and virtual reality environments.