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Quentin Mérigot

3 accepted papers

2025

Towards Understanding Gradient Dynamics of the Sliced-Wasserstein Distance via Critical Point Analysis

ICML 2025poster

In this paper, we investigate the properties of the Sliced Wasserstein Distance (SW) when employed as an objective functional. The SW metric has gained significant interest in the optimal transport and machine learning literature, due to its ability to capture intricate geometric properties of proba…

Cited by 0SourcePDFScholar
2021

Non-asymptotic convergence bounds for Wasserstein approximation using point clouds

NeurIPS 2021poster

Several issues in machine learning and inverse problems require to generate discrete data, as if sampled from a model probability distribution. A common way to do so relies on the construction of a uniform probability distribution over a set of $N$ points which minimizes the Wasserstein distance to…

Cited by 42SourcePDFScholar
2020

Quantitative stability of optimal transport maps and linearization of the 2-Wasserstein space

AISTATS 2020poster

This work studies an explicit embedding of the set of probability measures into a Hilbert space, defined using optimal transport maps from a reference probability density. This embedding linearizes to some extent the 2-Wasserstein space and is shown to be bi-Hölder continuous. It enables the direct…