Jan Pfister, M.Sc.
Chair of Data Science (Informatik X)
University of Würzburg
Campus Hubland Nord
Emil-Fischer-Straße 50
97074 Würzburg
Germany
Email: pfister[at]informatik.uni-wuerzburg.de
Phone: (+49 931) 31 - 81934
Office: Room 50.03.020 (Institutsgebäude Künstliche Intelligenz)
PGP Fingerprint: 9131 6BAF 85DE CFB3 AF89 86C9 568C 615A F18B C9C0
Research Interests & Project
I work in the field of Natural Language Processing (NLP) and in particular, I am interested in developing novel methods for understanding and extracting meaning from text. My work focuses on using large language models also in combination with pointer networks to capture the complexities of human language. I am currently working on applying these techniques to the task of aspect-based sentiment analysis, in order to extract fine-grained sentiment information from text.
I joined the DMIR group for my PhD studies after receiving my master's degree in Computer Science at the University of Würzburg in 2021. In the MOTIV project, we are working with voice-based digital assistants like Alexa, with the goal of educating users about the potential negative effects of mindless interactions and misconceptions.
Teaching
- Seminar: Ausgewählte Themen des Machine Learning (SS + WS '21)
- Lecture: Information Retrieval (SS '22)
- Project: Machine Learning in Natural Language Processing (since '22)
- Lecture: Text Mining (WS '23)
Publications
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SuperGLEBer: German Language Understanding Evaluation Benchmark. . In Proceedings of the 2024 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies (Volume 1: Long Papers), K. Duh, H. Gomez, S. Bethard (eds.), pp. 7897–7916. Association for Computational Linguistics, Mexico City, Mexico, 2024.
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Pollice Verso at SemEval-2024 Task 6: The Roman Empire Strikes Back. . In Proceedings of the 18th International Workshop on Semantic Evaluation (SemEval-2024), A. K. Ojha, A. S. Dougruöz, H. Tayyar Madabushi, G. Da San Martino, S. Rosenthal, A. Rosá (eds.), pp. 1529–1536. Association for Computational Linguistics, Mexico City, Mexico, 2024.
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OtterlyObsessedWithSemantics at SemEval-2024 Task 4: Developing a Hierarchical Multi-Label Classification Head for Large Language Models. . In Proceedings of the 18th International Workshop on Semantic Evaluation (SemEval-2024), A. K. Ojha, A. S. Dougruöz, H. Tayyar Madabushi, G. Da San Martino, S. Rosenthal, A. Rosá (eds.), pp. 602–612. Association for Computational Linguistics, Mexico City, Mexico, 2024.
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From Chat to Publication Management: Organizing your related work using BibSonomy & LLMs. . In Proceedings of the 2024 Conference on Human Information Interaction and Retrieval, of CHIIR ’24, pp. 386–390. Association for Computing Machinery, <conf-loc>, <city>Sheffield</city>, <country>United Kingdom</country>, </conf-loc>, 2024.
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LLäMmlein: Compact and Competitive German-Only Language Models from Scratch. . 2024.
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Pointer Networks: A Unified Approach to Extracting German Opinions. . In Proceedings of the 19th Conference on Natural Language Processing (KONVENS 2023), M. Georges, A. Herygers, A. Friedrich, B. Roth (eds.), pp. 127–138. Association for Computational Lingustics, Ingolstadt, Germany, 2023.
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Zero-Shot Clickbait Spoiling by Rephrasing Titles as Questions. . In Proceedings of the The 17th International Workshop on Semantic Evaluation (SemEval-2023), pp. 1090–1095. Association for Computational Linguistics, Toronto, Canada, 2023.
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Long-Term Effects of Perceived Friendship with Intelligent Voice Assistants on Usage Behavior, User Experience, and Social Perceptions. . In Computers, 12(4). 2023.
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Optimizing Medical Service Request Processes through Language Modeling and Semantic Search. . In 2023 the 7th International Conference on Medical and Health Informatics (ICMHI), of ICMHI 2023, pp. 136–141. Association for Computing Machinery, Kyoto, Japan, 2023.
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Higher-Order DeepTrails: Unified Approach to *Trails. . In Lernen, Wissen, Daten, Analysen (LWDA) Conference Proceedings, Marburg, Germany, October 9-11, 2023, Vol. 3630 of CEUR Workshop Proceedings, M. Leyer, J. Wichmann (eds.), pp. 372–386. CEUR-WS.org, 2023.
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Point me to your Opinion, SenPoi. . In Proceedings of the 16th International Workshop on Semantic Evaluation (SemEval-2022), pp. 1313–1323. Association for Computational Linguistics, Seattle, United States, 2022.
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Self-Supervised Multi-Task Pretraining Improves Image Aesthetic Assessment. . In Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) Workshops, pp. 816–825. 2021.
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Emote-Controlled: Obtaining Implicit Viewer Feedback through Emote based Sentiment Analysis on Comments of Popular Twitch.tv Channels. . In ACM Transactions on Social Computing. 2020.
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