| Ahornstraße 55, building E3 52074 Aachen Germany | |
| 9032 | |
| +49 241 80-21429 | |
| marlena.flueh@comsys.rwth-aachen.de |
Moin! Coming from the true north of Germany (somewhere north of Hamburg), I have been a PhD student at the Chair of Communication and Distributed Systems (COMSYS) since September 2025. Before that, I completed a vocational training as a software developer, studied Computer Science at TU Braunschweig (B.Sc.) and RWTH Aachen (M.Sc.), and gained research insights at DFKI, RWTH, and Fraunhofer FIT. In 2023, I was awarded a Femtec scholarship.
My research interests grew through the COMSYS Research Focus Class on Medical Data Privacy and my master’s thesis, where I worked on retrieval-augmented generation (RAG) over FAIR knowledge graphs for clinical research data. My PhD now focuses on the security and privacy of AI systems that process sensitive data, such as LLM-based agents and RAG systems in healthcare.
I was part of the interdisciplinary AI-MED project, which aimed to support diagnostics by analyzing radiology images using an agent-based AI system. Beyond image analysis, the system dynamically integrates additional patient information, while placing strong emphasis on data privacy, security, and compliance with regulations such as the GDPR.
Are you interested in the security and privacy of LLM-based systems, especially in medical applications? If so, feel free to send me an email including your motivation, research interests, and a brief overview of relevant experience. I am also open to discussing your own research idea.
Please note that ongoing theses are only visible from within the RWTH network. If you are not affiliated with RWTH Aachen University and you are interested in our topics, please contact us.