Accelerating optimization over the space of probability measures

Fuente: arXiv
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Auteurs principaux: Chen, Shi, Li, Qin, Tse, Oliver, Wright, Stephen J.
Format: Preprint
Publié: 2023
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author Chen, Shi
Li, Qin
Tse, Oliver
Wright, Stephen J.
author_facet Chen, Shi
Li, Qin
Tse, Oliver
Wright, Stephen J.
contents The acceleration of gradient-based optimization methods is a subject of significant practical and theoretical importance, particularly within machine learning applications. While much attention has been directed towards optimizing within Euclidean space, the need to optimize over spaces of probability measures in machine learning motivates exploration of accelerated gradient methods in this context too. To this end, we introduce a Hamiltonian-flow approach analogous to momentum-based approaches in Euclidean space. We demonstrate that, in the continuous-time setting, algorithms based on this approach can achieve convergence rates of arbitrarily high order. We complement our findings with numerical examples.
format Preprint
id arxiv_https___arxiv_org_abs_2310_04006
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Accelerating optimization over the space of probability measures
Chen, Shi
Li, Qin
Tse, Oliver
Wright, Stephen J.
Optimization and Control
Machine Learning
The acceleration of gradient-based optimization methods is a subject of significant practical and theoretical importance, particularly within machine learning applications. While much attention has been directed towards optimizing within Euclidean space, the need to optimize over spaces of probability measures in machine learning motivates exploration of accelerated gradient methods in this context too. To this end, we introduce a Hamiltonian-flow approach analogous to momentum-based approaches in Euclidean space. We demonstrate that, in the continuous-time setting, algorithms based on this approach can achieve convergence rates of arbitrarily high order. We complement our findings with numerical examples.
title Accelerating optimization over the space of probability measures
topic Optimization and Control
Machine Learning
url https://arxiv.org/abs/2310.04006