Jannis Halbey

My main interest lies in continuous optimization and reinforcement learning. Lately I have worked on problems in semidefinite programming, online learning and non-euclidean optimization. Furthermore I have worked graph neural networks in the context of NP-hard graph problems.

📬 Contact

office
Room 3106 at ZIB
e-mail
languages
English and German

🎓 Curriculum vitae

since 2022
Researcher at TUB
Sep 2022
M.Sc. in Mathematics at Technical University of Darmstadt
Mar 2020
B.Sc. in Mathematics at Technical University of Darmstadt

📝 Publications and preprints

Preprints

  1. Besançon, M., Designolle, S., Halbey, J., Hendrych, D., Kuzinowicz, D., Pokutta, S., Troppens, H., Viladrich, D., and Wirth, E. (2025). Improved Algorithms and Novel Applications of the FrankWolfe.jl Library. [arXiv]
    [BibTeX]
    @misc{2025_BesanconEtAl_Frankwolfelibrary,
      archiveprefix = {arXiv},
      eprint = {2501.14613},
      primaryclass = {math.OC},
      year = {2025},
      author = {Besançon, Mathieu and Designolle, Sébastien and Halbey, Jannis and Hendrych, Deborah and Kuzinowicz, Dominik and Pokutta, Sebastian and Troppens, Hannah and Viladrich, Daniel and Wirth, Elias},
      title = {Improved Algorithms and Novel Applications of the FrankWolfe.jl Library}
    }

📅 Event Attendance

👨‍🏫 Teaching

winter 2022
Assistant for analysis 2 for engineering at TUB
summer 2023
Assistant for analysis 2 for engineering at TUB
summer 2023
Assistant for discrete optimisation and machine learning seminar at TUB
winter 2023
Assistant for analysis 1 and linear algebra for engineering at TUB
winter 2023
Assistant for discrete optimisation and machine learning seminar at TUB
summer 2024
Assistant for analysis 2 for engineering at TUB
summer 2024
Assistant for discrete optimisation and machine learning seminar at TUB
winter 2024
Assistant for analysis 1 and linear algebra for engineering at TUB
winter 2024
Assistant for discrete optimisation and machine learning seminar at TUB