Neural Conditional Transport Maps

Fuente: arXiv
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Autores principales: Rodriguez-Pardo, Carlos, Chiani, Leonardo, Borgonovo, Emanuele, Tavoni, Massimo
Formato: Preprint
Publicado: 2025
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author Rodriguez-Pardo, Carlos
Chiani, Leonardo
Borgonovo, Emanuele
Tavoni, Massimo
author_facet Rodriguez-Pardo, Carlos
Chiani, Leonardo
Borgonovo, Emanuele
Tavoni, Massimo
contents We present a neural framework for learning conditional optimal transport (OT) maps between probability distributions. Our approach introduces a conditioning mechanism capable of processing both categorical and continuous conditioning variables simultaneously. At the core of our method lies a hypernetwork that generates transport layer parameters based on these inputs, creating adaptive mappings that outperform simpler conditioning methods. Comprehensive ablation studies demonstrate the superior performance of our method over baseline configurations. Furthermore, we showcase an application to global sensitivity analysis, offering high performance in computing OT-based sensitivity indices. This work advances the state-of-the-art in conditional optimal transport, enabling broader application of optimal transport principles to complex, high-dimensional domains such as generative modeling and black-box model explainability.
format Preprint
id arxiv_https___arxiv_org_abs_2505_15808
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Neural Conditional Transport Maps
Rodriguez-Pardo, Carlos
Chiani, Leonardo
Borgonovo, Emanuele
Tavoni, Massimo
Machine Learning
Artificial Intelligence
Probability
Applications
49Q22 (Primary) 68T07 (Secondary)
I.5.1; I.2.0; G.3
We present a neural framework for learning conditional optimal transport (OT) maps between probability distributions. Our approach introduces a conditioning mechanism capable of processing both categorical and continuous conditioning variables simultaneously. At the core of our method lies a hypernetwork that generates transport layer parameters based on these inputs, creating adaptive mappings that outperform simpler conditioning methods. Comprehensive ablation studies demonstrate the superior performance of our method over baseline configurations. Furthermore, we showcase an application to global sensitivity analysis, offering high performance in computing OT-based sensitivity indices. This work advances the state-of-the-art in conditional optimal transport, enabling broader application of optimal transport principles to complex, high-dimensional domains such as generative modeling and black-box model explainability.
title Neural Conditional Transport Maps
topic Machine Learning
Artificial Intelligence
Probability
Applications
49Q22 (Primary) 68T07 (Secondary)
I.5.1; I.2.0; G.3
url https://arxiv.org/abs/2505.15808