Active Subspaces in Infinite Dimension

Fuente: arXiv
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Auteurs principaux: Kundu, Poorbita, Wycoff, Nathan
Format: Preprint
Publié: 2025
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author Kundu, Poorbita
Wycoff, Nathan
author_facet Kundu, Poorbita
Wycoff, Nathan
contents Active subspace analysis uses the leading eigenspace of the gradient's second moment to conduct supervised dimension reduction. In this article, we extend this methodology to real-valued functionals on Hilbert space. We define an operator which coincides with the active subspace matrix when applied to a Euclidean space. We show that many of the desirable properties of Active Subspace analysis extend directly to the infinite dimensional setting. We also propose a Monte Carlo procedure and discuss its convergence properties. Finally, we deploy this methodology to create visualizations and improve modeling and optimization on complex test problems.
format Preprint
id arxiv_https___arxiv_org_abs_2510_11871
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Active Subspaces in Infinite Dimension
Kundu, Poorbita
Wycoff, Nathan
Machine Learning
Active subspace analysis uses the leading eigenspace of the gradient's second moment to conduct supervised dimension reduction. In this article, we extend this methodology to real-valued functionals on Hilbert space. We define an operator which coincides with the active subspace matrix when applied to a Euclidean space. We show that many of the desirable properties of Active Subspace analysis extend directly to the infinite dimensional setting. We also propose a Monte Carlo procedure and discuss its convergence properties. Finally, we deploy this methodology to create visualizations and improve modeling and optimization on complex test problems.
title Active Subspaces in Infinite Dimension
topic Machine Learning
url https://arxiv.org/abs/2510.11871