Florian Leiser, M.Sc.

Florian Leiser, M.Sc.

  • Kaiserstraße 89

    76133 Karlsruhe

Research Interests


Artificial intelligence and machine learning influence every aspect of our modern world. In my opinion, the responsibility of research is to improve the application of these approaches by developing collaborative, privacy-preserving algorithms. These algorithms can be further improved by using already existing expert knowledge which is especially difficult to aquire in the medical sector.

Therefore, my main research interests manifest in

  • Informed Machine Learning
  • Federated Learning
  • Health Information Systems

If you are looking for a final thesis, write me an e-mail or have a look at the list of theses here.

Title Project Group Emblem

Ali Sunyaev, Scott Thiebes, Sascha Rank, Florian Leiser


Ali Sunyaev, Scott Thiebes, Konstantin Pandl, Florian Leiser

NephroCAGE Logo


HILL: A Hallucination Identifier for Large Language Models
Leiser, F.; Eckhardt, S.; Leuthe, V.; Knaeble, M.; Maedche, A.; Schwabe, G.; Sunyaev, A.
2024. CHI ’24: Proceedings of the CHI Conference on Human Factors in Computing Systems. Ed.: F. Mueller, Association for Computing Machinery (ACM). doi:10.1145/3613904.3642428
HILL: A Hallucination Identifier for Large Language Models
Leiser, F.; Eckhardt, S.; Leuthe, V.; Knaeble, M.; Maedche, A.; Schwabe, G.; Sunyaev, A.
2024. arxiv. doi:10.48550/arXiv.2403.06710
Informed machine learning for cardiomegaly detection in chest X-rays: a comparative study
Hasse, F.; Leiser, F.; Sunyaev, A.
2024. Proceedings of the 21st IEEE International Symposium on Biomedical Imaging (ISBI 2024), Institute of Electrical and Electronics Engineers (IEEE)
Explainable artificial intelligence for omics data: a systematic mapping study
Toussaint, P. A.; Leiser, F.; Thiebes, S.; Schlesner, M.; Brors, B.; Sunyaev, A.
2024. Briefings in Bioinformatics, 25 (1), 1–16. doi:10.1093/bib/bbad453
Medical informed machine learning: A scoping review and future research directions
Leiser, F.; Rank, S.; Schmidt-Kraepelin, M.; Thiebes, S.; Sunyaev, A.
2023. Artificial Intelligence in Medicine, 145, Art.-Nr.: 102676. doi:10.1016/j.artmed.2023.102676
Applying Random Forests in Federated Learning: A Synthesis of Aggregation Techniques
Bodynek, M.; Leiser, F.; Thiebes, S.; Sunyaev, A.
2023. Wirtschaftsinformatik 2023 Proceedings, AIS eLibrary (AISeL)
From ChatGPT to FactGPT: A Participatory Design Study to Mitigate the Effects of Large Language Model Hallucinations on Users
Leiser, F.; Eckhardt, S.; Knaeble, M.; Mädche, A.; Schwabe, G.; Sunyaev, A.
2023. Mensch und Computer 2023, 81–90, Association for Computing Machinery (ACM)
How Experts Rely on Intuition in Medical Image Annotation – A Study Proposal
Leiser, F.; Warsinsky, S. L.; Schmidt-Kraepelin, M.; Thiebes, S.; Sunyaev, A.
2023. Proceedings NeuroIS Retreat 2023 Vienna, Austria | May 30 - June 1. Ed.: F. Davis, 245–253, Springer
NephroCAGE—German-Canadian Consortium on AI for Improved Kidney Transplantation Outcome: Protocol for an Algorithm Development and Validation Study
Schapranow, M.-P.; Bayat, M.; Rasheed, A.; Naik, M.; Graf, V.; Schmidt, D.; Budde, K.; Cardinal, H.; Sapir-Pichhadze, R.; Fenninger, F.; Sherwood, K.; Keown, P.; Günther, O. P.; Pandl, K. D.; Leiser, F.; Thiebes, S.; Sunyaev, A.; Niemann, M.; Schimanski, A.; Klein, T.
2023. JMIR Research Protocols, 12, Art.-Nr.: e48892. doi:10.2196/48892
Understanding the Role of Expert Intuition in Medical Image Annotation: A Cognitive Task Analysis Approach
Leiser, F.; Warsinsky, S.; Daum, M.; Schmidt-Kraepelin, M.; Thiebes, S.; Wagner, M.; Sunyaev, A.
2023. Proceedings of the 56th Hawaii International Conference on System Sciences (HICSS 2023). Ed.: T.X. Bui, 2850–2859
What Your Radiologist Might be Missing: Using Machine Learning to Identify Mislabeled Instances of X-ray Images
Rädsch, T.; Eckhardt, S.; Leiser, F.; Pandl, K. D.; Thiebes, S.; Sunyaev, A.
2021. Proceedings of the 54th Hawaii International Conference on System Sciences (HICSS)


Florian Leiser is a Ph.D. student and research associate at the Critical Information Infrastructures Research Group.


  • Since 09/2021: Ph.D. student at Critical Information Infrastructures Research Group at Karlsruhe Institute of Technology, Germany
  • 10/2019 - 07/2021: Master of Science in Information Systems, Karlsruhe Institute of Technology, Germany
  • 10/2018 - 10/2019: Student in Information Engineering and Management (Master of Science), Karlsruhe Institute of Technology (discontinued)
  • 10/2014 - 06/2018: Bachelor of Science in Information Engineering and Management, Karlsruhe Institute of Technology, Germany

Working Experience

  • Since 09/2021: Research Associate, Critical Information Infrastructures Research Group, Karlsruhe Institute of Technology, Germany
  • 03/2019 - 02/2020: Student Assistant at CAS Software AG, Karlsruhe, Germany
  • 10/2017 - 03/2018: Internship IT-audit and Data Science at Ernst & Young GmbH, Frankfurt, Germany
  • 10/2016 - 02/2017: Student Assistant, Institute of Theoretical Informatics, Karlsruhe Institute of Technology, Germany
  • 04/2016 - 09/2016: Student Assistant, Institute of Information Systems and Marketing, Karlsruhe Institute of Technology, Germany