Alexander Bondarenko is a postdoctoral researcher at the Databases and Information Systems group, Friedrich-Schiller-Universität Jena, where he works on natural language understanding, argument retrieval, and causality extraction since October 2022. He completed his PhD in June 2023 with a dissertation titled Understanding Comparative Questions and Retrieving Argumentative Answers . Research Focus Primary research areas: natural language processing, question answering systems, information retrieval, argumentation modeling, and causal inference. Key projects: developing frameworks for comparative QA, stance-aware ranking, and misinformation-resistant biomedical search systems. Recent Article Trends His publications (2020–2025) emphasize: Argument retrieval systems and axiomatic re-ranking Biomedical question answering robustness Comparative question modeling across languages Causal inference in neural models Search quality impact on decision-making AI applications in medical education Teaching & Advising Supervised 8 theses including Marvin Vogel ( Axiomatic Re-ranking ) and Lukas Zeit-Altpeter ( Health QA with Trusted Sources ) Contributed to Touché shared tasks and Webis research group Contact Phone: +49 3641 9-46506 | Room 3237, Ernst-Abbe-Platz 2, 07743 Jena




