Bayesian Neural Networks for Functional ANOVA model

Fuente: arXiv
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Main Authors: Park, Seokhun, Kim, Choeun, Lee, Jihu, Shin, Yunseop, Kong, Insung, Kim, Yongdai
Format: Preprint
Published: 2025
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author Park, Seokhun
Kim, Choeun
Lee, Jihu
Shin, Yunseop
Kong, Insung
Kim, Yongdai
author_facet Park, Seokhun
Kim, Choeun
Lee, Jihu
Shin, Yunseop
Kong, Insung
Kim, Yongdai
contents With the increasing demand for interpretability in machine learning, functional ANOVA decomposition has gained renewed attention as a principled tool for breaking down high-dimensional function into low-dimensional components that reveal the contributions of different variable groups. Recently, Tensor Product Neural Network (TPNN) has been developed and applied as basis functions in the functional ANOVA model, referred to as ANOVA-TPNN. A disadvantage of ANOVA-TPNN, however, is that the components to be estimated must be specified in advance, which makes it difficult to incorporate higher-order TPNNs into the functional ANOVA model due to computational and memory constraints. In this work, we propose Bayesian-TPNN, a Bayesian inference procedure for the functional ANOVA model with TPNN basis functions, enabling the detection of higher-order components with reduced computational cost compared to ANOVA-TPNN. We develop an efficient MCMC algorithm and demonstrate that Bayesian-TPNN performs well by analyzing multiple benchmark datasets. Theoretically, we prove that the posterior of Bayesian-TPNN is consistent.
format Preprint
id arxiv_https___arxiv_org_abs_2510_00545
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Bayesian Neural Networks for Functional ANOVA model
Park, Seokhun
Kim, Choeun
Lee, Jihu
Shin, Yunseop
Kong, Insung
Kim, Yongdai
Machine Learning
With the increasing demand for interpretability in machine learning, functional ANOVA decomposition has gained renewed attention as a principled tool for breaking down high-dimensional function into low-dimensional components that reveal the contributions of different variable groups. Recently, Tensor Product Neural Network (TPNN) has been developed and applied as basis functions in the functional ANOVA model, referred to as ANOVA-TPNN. A disadvantage of ANOVA-TPNN, however, is that the components to be estimated must be specified in advance, which makes it difficult to incorporate higher-order TPNNs into the functional ANOVA model due to computational and memory constraints. In this work, we propose Bayesian-TPNN, a Bayesian inference procedure for the functional ANOVA model with TPNN basis functions, enabling the detection of higher-order components with reduced computational cost compared to ANOVA-TPNN. We develop an efficient MCMC algorithm and demonstrate that Bayesian-TPNN performs well by analyzing multiple benchmark datasets. Theoretically, we prove that the posterior of Bayesian-TPNN is consistent.
title Bayesian Neural Networks for Functional ANOVA model
topic Machine Learning
url https://arxiv.org/abs/2510.00545