About me
I am Professor for AI-based Information Retrieval in Digital Humanities (25%) at the University of Graz
as well as head of the research area FAIR-AI
at Know Center Graz, one of Europe's leading research centers for trustworthy AI.
I hold a venia docendi in Applied Computer Science at the
Institute of Human-Centred Computing of Graz University of Technology,
where I regularly teach courses and supervise students. I completed my
Ph.D. (with distinction) in October 2017 on psychology-informed recommender systems based on the cognitive architecture ACT-R.
Additionally, in June 2024, I completed my habilitation (post-doctoral thesis)
on the topic of transparency, privacy, and fairness aspects of recommender systems. I am a key researcher in the
Interfaces of Agent-Centric AI FFG COMET module,
and in other international research projects. I have published more than 120 papers in interdisciplinary and
computer science venues (h-index: 30),
and my research was presented in several news outlets.
Research fields: Recommender Systems; Algorithmic Bias & Fairness; Trustworthy AI; Sociotechnical Systems; Ethical, Legal & Social Aspects of AI; Digital Humanities
Open theses: ( link)
Key Achievements
Full list available in my CV: ( .pdf)
Selected publications:
- Burke, R., Adomavicius, G., Bogers, T., Di Noia, T., Kowald, D., Neidhardt, J., Özgöbek, Ö., Pera, S., Tintarev, N., & Ziegler, J. (2025). De-centering the (Traditional) User: Multistakeholder Evaluation of Recommender Systems. International Journal on Human Computer Studies. SCImago journal rank (human factors and ergonomics; human-computer interaction): Q1; IF=5.1 ( .pdf)
- Semmelrock, H., Ross-Hellauer, T., Kopeinik, S., Theiler, D., Haberl, A., Thalmann, S., & Kowald, D. (2025). Reproducibility in Machine Learning-based Research: Overview, Barriers and Drivers. AI Magazine, 46(2). SCImago journal rank (artificial intelligence): Q2; IF=3.2 ( .pdf)
- Scher, S., Kopeinik, S., Truegler, A., & Kowald, D. (2023). Modelling the Long-Term Fairness Dynamics of Data-Driven Targeted Help on Job Seekers. Nature Scientific Reports. SCImago journal rank (multidisciplinary): Q1, IF=3.9 ( .pdf)
- Kowald, D., Muellner, P., Zangerle, E., Bauer, C., Schedl, M. & Lex, E. (2021). Support the Underground: Characteristics of Beyond-Mainstream Music Listeners. EPJ Data Science. SCImago journal rank (modeling and simulation): Q1; IF=2.5 ( .pdf) ( blog)
- Kowald, D., Pujari, S., & Lex, E. (2017). Temporal Effects on Hashtag Reuse in Twitter: A Cognitive-Inspired Hashtag Recommendation Approach. In Proceedings of the 26th International World Wide Web Conference (WWW'2017). ACM. Core conference rank (computer science): A*; full paper accept rate=17% ( .pdf)
Research
Teaching
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Qualification: Venia Docendi in Applied Computer Science, Advanced Teaching Certificate from TU Graz Teaching Academy, and professorship at University of Graz.
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Interdisciplinarity: Experience teaching computer science to diverse student groups (Computational Social Systems, Digital Humanities), including student supervisions.
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Innovation: Development of research-oriented course outlines for Databases (~100 students) and Data Management (~500 students), with favorable student evaluations.
Management
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Leadership: Head of the FAIR-AI research area at Know Center Graz since 2021, and currently attending the TU Graz Gender & Diversity Training Programme.
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Funding: Successful acquisition of research grants, including the FFG COMET Research Center grant worth 3.4M€ in cash and in-kind contributions for FAIR-AI, as well as, most recently, 1.1M€ Horizon Europe funding for FAIR-AI.
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Event Organization: Co-organizer of scientific events, e.g., the algorithmic fairness sessions at the STS Conference Graz or the HyPER workshop at ACM UMAP.