Geometric Jensen-Shannon Divergence Between Gaussian Measures On Hilbert Space

Fuente: arXiv
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Main Authors: Quang, Minh Ha, Nielsen, Frank
Format: Preprint
Published: 2025
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author Quang, Minh Ha
Nielsen, Frank
author_facet Quang, Minh Ha
Nielsen, Frank
contents This work studies the Geometric Jensen-Shannon divergence, based on the notion of geometric mean of probability measures, in the setting of Gaussian measures on an infinite-dimensional Hilbert space. On the set of all Gaussian measures equivalent to a fixed one, we present a closed form expression for this divergence that directly generalizes the finite-dimensional version. Using the notion of Log-Determinant divergences between positive definite unitized trace class operators, we then define a Regularized Geometric Jensen-Shannon divergence that is valid for any pair of Gaussian measures and that recovers the exact Geometric Jensen-Shannon divergence between two equivalent Gaussian measures when the regularization parameter tends to zero.
format Preprint
id arxiv_https___arxiv_org_abs_2506_10494
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Geometric Jensen-Shannon Divergence Between Gaussian Measures On Hilbert Space
Quang, Minh Ha
Nielsen, Frank
Probability
Information Theory
Machine Learning
28C20, 60G15, 47B65
This work studies the Geometric Jensen-Shannon divergence, based on the notion of geometric mean of probability measures, in the setting of Gaussian measures on an infinite-dimensional Hilbert space. On the set of all Gaussian measures equivalent to a fixed one, we present a closed form expression for this divergence that directly generalizes the finite-dimensional version. Using the notion of Log-Determinant divergences between positive definite unitized trace class operators, we then define a Regularized Geometric Jensen-Shannon divergence that is valid for any pair of Gaussian measures and that recovers the exact Geometric Jensen-Shannon divergence between two equivalent Gaussian measures when the regularization parameter tends to zero.
title Geometric Jensen-Shannon Divergence Between Gaussian Measures On Hilbert Space
topic Probability
Information Theory
Machine Learning
28C20, 60G15, 47B65
url https://arxiv.org/abs/2506.10494