Author

C. Wald

h-index 3 View on Semantic Scholar

We have 3 of 10 papers

We haven’t gathered this author’s papers yet. Follow them and we’ll fetch their work.

Not the right person? Other researchers publish under this name.

Preprint Aug 2026

Alignment Matters Inside and Out in Equivariant Graph Flow Matching

Graphs are invariant under node permutations, motivating permutation-equivariant architectures in generative models. In flow matching, however, symmetry also affects the source-target coupling: one must choose both which graphs to pair and which node representatives to align. We study these two forms of alignment, term...

Moritz Piening, C. Wald · 0 citations

#machine learning Preprint May 2025

A Jump-Diffusion Framework for Irregular Time Series Generation

The key ingredient is that, for a constructed jump bridge, a parametrization of the jump kernel densities by scaled Gaussians admits closed-form expressions for the Kullback-Leibler divergence, allowing simulation-free training.

O. Pfohl, J. Chemseddine, P. Hagemann et al. · 1 citation

#data science Preprint Aug 2026

Gromov-Monge Flow Matching for Equivariant Graph Generation

This work develops this perspective theoretically, showing that quotient couplings can be lifted to aligned representatives without additional cost and that symmetrization yields equivariant flow-matching minimizers, including for categorical endpoint prediction.

Moritz Piening, C. Wald · 0 citations