[图书][B] Numerical fourier analysis

G Plonka, D Potts, G Steidl, M Tasche - 2018 - Springer
The Applied and Numerical Harmonic Analysis (ANHA) book series aims to provide the
engineering, mathematical, and scientific communities with significant developments in …

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 …

Neural Wasserstein gradient flows for maximum mean discrepancies with Riesz kernels

F Altekrüger, J Hertrich, G Steidl - arXiv preprint arXiv:2301.11624, 2023 - arxiv.org
Wasserstein gradient flows of maximum mean discrepancy (MMD) functionals with non-
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 …

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 …

Unbalanced multi-marginal optimal transport

F Beier, J von Lindheim, S Neumayer… - Journal of Mathematical …, 2023 - Springer
Entropy-regularized optimal transport and its multi-marginal generalization have attracted
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

S Neumayer, V Stein, G Steidl, N Rux - arXiv preprint arXiv:2402.04613, 2024 - arxiv.org
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 …

Wasserstein steepest descent flows of discrepancies with Riesz kernels

J Hertrich, M Gräf, R Beinert, G Steidl - Journal of Mathematical Analysis …, 2024 - Elsevier
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 …

On a linear Gromov–Wasserstein distance

F Beier, R Beinert, G Steidl - IEEE Transactions on Image …, 2022 - ieeexplore.ieee.org
Gromov–Wasserstein distances are generalization of Wasserstein distances, which are
invariant under distance preserving transformations. Although a simplified version of optimal …

Wasserstein gradient flows of the discrepancy with distance kernel on the line

J Hertrich, R Beinert, M Gräf, G Steidl - International Conference on Scale …, 2023 - Springer
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 …