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Austin Stromme

3 accepted papers

2023

Sampling From a Schrödinger Bridge

AISTATS 2023poster

The Schrödinger bridge is a stochastic process that finds the most likely coupling of two measures with respect to Brownian motion, and is equivalent to the popular entropically regularized optimal transport problem. Motivated by recent applications of the Schrödinger bridge to trajectory reconstruc…

Cited by 21SourcePDFScholar
2021

Fast and Smooth Interpolation on Wasserstein Space

AISTATS 2021poster

We propose a new method for smoothly interpolating probability measures using the geometry of optimal transport. To that end, we reduce this problem to the classical Euclidean setting, allowing us to directly leverage the extensive toolbox of spline interpolation. Unlike previous approaches to measu…

Cited by 40SourcePDFScholar
2020

Exponential ergodicity of mirror-Langevin diffusions

NeurIPS 2020poster

Motivated by the problem of sampling from ill-conditioned log-concave distributions, we give a clean non-asymptotic convergence analysis of mirror-Langevin diffusions as introduced in Zhang et al. (2020). As a special case of this framework, we propose a class of diffusions called Newton-Langevin di…

Cited by 60SourcePDFScholar