I am an Assistant Professor in the Database and Artificial Intelligence Group at the Institute of Logic and Computation of TU Wien. Previously, I was an Associate Professor in the Department of Computing at Umeå University (Sweden). At Umeå University I was a Faculty Member in WASP Program (Wallenberg AI, Autonomous Systems and Software Program) . I am a Key Researcher in the Cluster of Excellence “Bilateral Artificial Intelligence” funded by FWF. Among other teaching and supervision activities, I teach Semi-structured Data and Processing of Declarative Knowlege at TU Wien. I am member of the Editorial Board of Artificial Intelligence Journal . In 2024, I served as a co-Chair of RuleML+RR 2024 and of the Recently Published Research Track of KR 2024. In 2020, I was an Editor of the Special Issue on Ontologies and Data Management at Künstliche Intelligenz. In 2019, I was a co-Chair of DL 2019. I am originally from the beautiful city of Vilnius, where I also did my Bachelor studies in Computer Science at Vilnius University.

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News 📣

• [30-10-2026] I am serving on the advisory board of ECAF'27, the Sixth European Conference on Algorithmic Fairness, taking place in Vilnius, Lithuania, on 25–27 August 2027. Consider submitting your work and joining us for this important conference on algorithmic fairness!
• [01-03-2026] We are organizing Declarative AI 2026 in Vilnius (24 - 30 August 2026, Vilnius), which will include the 22nd Reasoning Web Summer School. Consider attending!
• [01-02-2026] I am serving as program co-chair and local organizer of The EurAI Summer School on Artificial Intelligence (ESSAI 2026) in Vienna (6 - 10 July 2026, Vienna). Consider attending!
• [January 2026] Congratulations to Federica Di Stefano, who successfully graduated with her PhD thesis, “Non-monotonic Description Logics Based on Predicate Minimization.”
• [11-11-2025] “Minimal Model Reasoning in Description Logics: Don't Try This at Home!” received the Best Paper Award Runner-Up distinction at KR 2025.
• [01-11-2024] I am a partner in the FWF-funded project OnTeGra: Ontology-based Access to Temporal and Graph Data.
• [2024] I became a Key Researcher in the FWF-funded Bilateral AI Cluster of Excellence, where I work on trustworthy logic-based specifications for AI systems and reinforcement-learning rewards.
• [July 2024] Congratulations to Sanja Lukumbuzya, who successfully defended her PhD thesis, “Reasoning in Very Expressive Description Logics with Varying Information Completeness.”
• [2023] “On the Expressive Power of Ontology-Mediated Queries: Capturing coNP”, co-authored with Sanja Lukumbuzya, received the Best Student Paper Award at DL 2023.
• [2019] “Answer Set Programs Challenged by Ontologies”, co-authored with Sanja Lukumbuzya, received the Best Student Paper Award at DL 2019.