Computer Methods and Programs in Biomedicine · 2023
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Resume (English only)
Academic Achievements
Published paper 'Flatness is Necessary, Neural Collapse is Not: Rethinking Generalization via Grokking' at NeurIPS 2025 (A*, top 7%)
Two papers accepted at AAAI 2025 (A*, top 7%): 'Little is Enough: Boosting Privacy by Sharing Only Hard Labels in Federated Semi-Supervised Learning' and 'Federated Binary Matrix Factorization using Proximal Optimization'
Published 'Layer-wise Linear Mode Connectivity' at ICLR 2024 (A*, top 7%)
Published 'Orthogonal Gradient Boosting for Simpler Additive Rule Ensembles' at AISTATS 2024 (A, top 16%)
Organizing the Workshop on Federated Learning in Critical Applications at AAAI 2026 in Singapore
Research Experience
Designs algorithms for federated and decentralized learning that reduce communication overhead, handle non-IID or small datasets, and preserve privacy while maintaining high performance
Investigates mathematical foundations of deep learning, including loss surface geometry, generalization theory, flatness, and their links to robustness and adversarial behavior
Explores causal structure discovery and utilization to improve performance, explainability, and reliability
Pioneered privacy-preserving causal discovery methods in federated settings
Collaborates closely with partners in medicine, industry, and government to translate theoretical advances into real-world impact
Background
Associate Professor for Machine Learning and Artificial Intelligence at TU Dortmund University
Faculty member of the Lamarr Institute for Machine Learning and Artificial Intelligence
Affiliated with the Institute for Artificial Intelligence in Medicine (IKIM) at University Medicine Essen, continuing collaborations in medical AI research
Offers Bachelor’s and Master’s thesis topics for students of the UA Ruhr alliance (University of Duisburg-Essen, Ruhr-University Bochum, TU Dortmund)
Research focuses on trustworthy and theoretically grounded machine learning methods, especially in distributed, privacy-critical, and high-stakes settings such as healthcare
Core interests include deep learning theory, causal representation learning, and federated learning, and their integration for reliable AI systems