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Spiegel, Christoph, Dr.

Christoph Spiegel

Contact

Position
Deputy Head of Department
Room
3009
Phone
+49 30 84185-436
Email
Email
Website
Personal Homepage
Division
Mathematical Algorithmic Intelligence
Department
AI in Society, Science and Technology
Group
Interactive Optimization and Learning

Publications

2026
An Unsure Note on an Un-Schur Problem Electronic Journal of Combinatorics, 33(1), p. P1.45, 2026 Olaf Parczyk, Christoph Spiegel BibTeX
DOI
arXiv
Limits of combinatorial patchworking 2026 Zoe Geiselmann, Michael Joswig, Lars Kastner, Konrad Mundinger, Sebastian Pokutta, Christoph Spiegel, Marcel Wack, Max Zimmer BibTeX
arXiv
Neural Sum-of-Squares: Certifying the Nonnegativity of Polynomials with Transformers International Conference on Learning Representations 2026, 2026 Nico Pelleriti, Christoph Spiegel, Shiwei Liu, David Martínez-Rubio, Max Zimmer, Sebastian Pokutta BibTeX
arXiv
The Rado multiplicity problem in vector spaces over finite fields Finite Fields and Their Applications, Vol.111, p. 102782, 2026 Juanjo Rué, Christoph Spiegel BibTeX
DOI
arXiv
The four-color Ramsey multiplicity of triangles Journal of Combinatorial Theory, Series B, Vol.179, pp. 19-70, 2026 Aldo Kiem, Sebastian Pokutta, Christoph Spiegel BibTeX
DOI
arXiv
2025
Compression-aware training of neural networks using Frank-Wolfe Mathematical Optimization for Machine Learning, K. Fackeldey (Ed.), De Gruyter, pp. 137-168, 2025 Max Zimmer, Christoph Spiegel, Sebastian Pokutta BibTeX
DOI
arXiv
Infinitely many counterexamples to a conjecture of Lovász 2025 Aida Abiad, Frederik Garbe, Xavier Povill, Christoph Spiegel BibTeX
arXiv
Neural Discovery in Mathematics: Do Machines Dream of Colored Planes? Proceedings of the 42nd International Conference on Machine Learning, pp. 45236-45255, Vol.267, Proceedings of Machine Learning Research, 2025 Konrad Mundinger, Max Zimmer, Aldo Kiem, Christoph Spiegel, Sebastian Pokutta BibTeX
arXiv
New Ramsey multiplicity bounds and search heuristics Foundations of Computational Mathematics, 25(5), pp. 1777-1814, 2025 Olaf Parczyk, Sebastian Pokutta, Christoph Spiegel, Tibor Szabó BibTeX
DOI
arXiv
2024
Categorification of Flag Algebras Discrete Mathematics Days 2024, pp. 259-264, 2024 Aldo Kiem, Sebastian Pokutta, Christoph Spiegel BibTeX
DOI
Extending the Continuum of Six-Colorings Geombinatorics Quarterly, 34(1), pp. 20-29, 2024 Konrad Mundinger, Sebastian Pokutta, Christoph Spiegel, Max Zimmer BibTeX
arXiv
Extending the Continuum of Six-Colorings Discrete Mathematics Days 2024, pp. 178-183, 2024 Konrad Mundinger, Sebastian Pokutta, Christoph Spiegel, Max Zimmer BibTeX
DOI
Sparse Model Soups 12th International Conference on Learning Representations (ICLR 2024), 2024, ISBN: 9781713898658 Max Zimmer, Christoph Spiegel, Sebastian Pokutta BibTeX
The Four-Color Ramsey Multiplicity of Triangles Discrete Mathematics Days 2024, pp. 13-18, 2024 Aldo Kiem, Sebastian Pokutta, Christoph Spiegel BibTeX
DOI
2023
Fully Computer-assisted Proofs in Extremal Combinatorics Proceedings of the AAAI Conference on Artificial Intelligence, pp. 12482-12490, 37(10), 2023 Olaf Parczyk, Sebastian Pokutta, Christoph Spiegel, Tibor Szabó BibTeX
DOI
How I Learned to Stop Worrying and Love Retraining Proceedings of International Conference on Learning Representations, 2023 Max Zimmer, Christoph Spiegel, Sebastian Pokutta BibTeX
The Rado Multiplicity Problem in Vector Spaces Over Finite Fields Proceedings of the 12th European Conference on Combinatorics, Graph Theory and Applications, EUROCOMB’23, pp. 784-789, 2023 Juanjo Rué Perna, Christoph Spiegel BibTeX
DOI
2022
Another note on intervals in the Hales-Jewett theorem Electronic Journal of Combinatorics, 29(1), p. P1.62, 2022 Nina Kamčev, Christoph Spiegel BibTeX
DOI
New Ramsey Multiplicity Bounds and Search Heuristics Discrete Mathematics Days, 2022 Olaf Parczyk, Sebastian Pokutta, Christoph Spiegel, Tibor Szabó BibTeX
2020
Deep Neural Network Training with Frank-Wolfe 2020 Sebastian Pokutta, Christoph Spiegel, Max Zimmer BibTeX
arXiv
Projection-Free Adaptive Gradients for Large-Scale Optimization 2020 Combettes Cryille W., Christoph Spiegel, Sebastian Pokutta BibTeX
arXiv