About
I am a Ph.D. student at ETH Zurich in the Statistical Machine Learning Group, advised by Prof. Fanny Yang. During Fall 2024, I will be a long-term visitor at the Simons Institute for the Theory of Computing.
My current interests revolve around theory of out-of-distribution generalization in machine learning. Additionally, I am broadly interested in statistical learning theory, causal inference and information theory.
Before joining ETH Zurich, I completed my master's in mathematics as part of the TopMath program at Technical University of Munich. I completed a bachelor's degree in mathematics at LMU Munich.
News
Publications and preprints
- J. Kostin, N. Gnecco, and F. Yang. Achievable distributional robustness when the robust risk is only partially identified.
- J. Kostin, F. Krahmer, and D. Stöger. How robust is randomized blind deconvolution via nuclear norm minimization against adversarial noise? [preprint]
- M. Elminshawi, J. Kostin, E. A. P. Habets, and N. K. Sharma. Attended Talker Decoding Exclusively From Listening-State EEG.
Talks
- Robustness of Low Rank Matrix Recovery under Adversarial Noise. 93rd Annual Meeting of the International Association of Applied Mathematics and Mechanics, Dresden, 02.06.2023.
- Robustness Guarantees for Blind Deconvolution via Nuclear Norm Minimization. KU-LMU-TUM Joint Seminar on Mathematics of Data Science, Munich, 07.11.2022.
- Convex Geometry Based Guarantees for Low-rank Matrix Recovery with Adversarial Noise. Approximation and geometry in high dimensions 2022, Bedlewo, Poland.
Teaching
In the past, I have assisted in teaching the following courses:
- Spring Semester 2024: Introduction to Machine Learning (ETH Zurich, Prof. Fanny Yang and Prof. Fernando Perez-Cruz)
- Fall Semester 2023/24: Guarantees for Machine Learning (ETH Zurich, Prof. Fanny Yang)
- Winter Semester 2021/22: Linear Algebra for Electrical Engineering (TUM, Prof. Claudia Scheimbauer)
- Summer Semester 2020: Multivariable Calculus and Topology (LMU, Prof. Peter Müller)
- Winter Semester 2019/20: Measure Theory (LMU, Prof. Bernhard Leeb)
- Summer Semester 2019: Calculus and Topology (LMU, Prof. Bernhard Leeb)