EU-Nets: Enhanced, Explainable and Parsimonious U-Nets

Fuente: arXiv
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Auteurs principaux: Sun, B., Liò, P.
Format: Preprint
Publié: 2025
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author Sun, B.
Liò, P.
author_facet Sun, B.
Liò, P.
contents In this study, we propose MHEX+, a framework adaptable to any U-Net architecture. Built upon MHEX+, we introduce novel U-Net variants, EU-Nets, which enhance explainability and uncertainty estimation, addressing the limitations of traditional U-Net models while improving performance and stability. A key innovation is the Equivalent Convolutional Kernel, which unifies consecutive convolutional layers, boosting interpretability. For uncertainty estimation, we propose the collaboration gradient approach, measuring gradient consistency across decoder layers. Notably, EU-Nets achieve an average accuracy improvement of 1.389\% and a variance reduction of 0.83\% across all networks and datasets in our experiments, requiring fewer than 0.1M parameters.
format Preprint
id arxiv_https___arxiv_org_abs_2502_18122
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle EU-Nets: Enhanced, Explainable and Parsimonious U-Nets
Sun, B.
Liò, P.
Machine Learning
Artificial Intelligence
In this study, we propose MHEX+, a framework adaptable to any U-Net architecture. Built upon MHEX+, we introduce novel U-Net variants, EU-Nets, which enhance explainability and uncertainty estimation, addressing the limitations of traditional U-Net models while improving performance and stability. A key innovation is the Equivalent Convolutional Kernel, which unifies consecutive convolutional layers, boosting interpretability. For uncertainty estimation, we propose the collaboration gradient approach, measuring gradient consistency across decoder layers. Notably, EU-Nets achieve an average accuracy improvement of 1.389\% and a variance reduction of 0.83\% across all networks and datasets in our experiments, requiring fewer than 0.1M parameters.
title EU-Nets: Enhanced, Explainable and Parsimonious U-Nets
topic Machine Learning
Artificial Intelligence
url https://arxiv.org/abs/2502.18122