From optimal transport to discrepancy
S Neumayer, G Steidl - Handbook of Mathematical Models and Algorithms …, 2021 - Springer
A common way to quantify the “distance” between measures is via their discrepancy, also
known as maximum mean discrepancy (MMD). Discrepancies are related to Sinkhorn …
known as maximum mean discrepancy (MMD). Discrepancies are related to Sinkhorn …
Neural Wasserstein gradient flows for maximum mean discrepancies with Riesz kernels
Wasserstein gradient flows of maximum mean discrepancy (MMD) functionals with non-
smooth Riesz kernels show a rich structure as singular measures can become absolutely …
smooth Riesz kernels show a rich structure as singular measures can become absolutely …
Optimizing full 3d sparkling trajectories for high-resolution magnetic resonance imaging
GR Chaithya, P Weiss, G Daval-Frérot… - … on Medical Imaging, 2022 - ieeexplore.ieee.org
The Spreading Projection Algorithm for Rapid K-space sampLING, or SPARKLING, is an
optimization-driven method that has been recently introduced for accelerated 2D MRI using …
optimization-driven method that has been recently introduced for accelerated 2D MRI using …
Parallelly sliced optimal transport on spheres and on the rotation group
M Quellmalz, L Buecher, G Steidl - Journal of Mathematical Imaging and …, 2024 - Springer
Sliced optimal transport, which is basically a Radon transform followed by one-dimensional
optimal transport, became popular in various applications due to its efficient computation. In …
optimal transport, became popular in various applications due to its efficient computation. In …
Unbalanced multi-marginal optimal transport
Entropy-regularized optimal transport and its multi-marginal generalization have attracted
increasing attention in various applications, in particular due to efficient Sinkhorn-like …
increasing attention in various applications, in particular due to efficient Sinkhorn-like …
Wasserstein gradient flows for Moreau envelopes of f-divergences in reproducing kernel Hilbert spaces
Most commonly used $ f $-divergences of measures, eg, the Kullback-Leibler divergence,
are subject to limitations regarding the support of the involved measures. A remedy consists …
are subject to limitations regarding the support of the involved measures. A remedy consists …
Wasserstein steepest descent flows of discrepancies with Riesz kernels
The aim of this paper is twofold. Based on the geometric Wasserstein tangent space, we first
introduce Wasserstein steepest descent flows. These are locally absolutely continuous …
introduce Wasserstein steepest descent flows. These are locally absolutely continuous …
On a linear Gromov–Wasserstein distance
Gromov–Wasserstein distances are generalization of Wasserstein distances, which are
invariant under distance preserving transformations. Although a simplified version of optimal …
invariant under distance preserving transformations. Although a simplified version of optimal …
Wasserstein gradient flows of the discrepancy with distance kernel on the line
This paper provides results on Wasserstein gradient flows between measures on the real
line. Utilizing the isometric embedding of the Wasserstein space P 2 (R) into the Hilbert …
line. Utilizing the isometric embedding of the Wasserstein space P 2 (R) into the Hilbert …