Hierarchical Latent Structure Learning through Online Inference

Fuente: arXiv
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Main Authors: Aitsahalia, Ines, Iigaya, Kiyohito
Format: Preprint
Published: 2026
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author Aitsahalia, Ines
Iigaya, Kiyohito
author_facet Aitsahalia, Ines
Iigaya, Kiyohito
contents Learning systems must balance generalization across experiences with discrimination of task-relevant details. Effective learning therefore requires representations that support both. Online latent-cause models support incremental inference but assume flat partitions, whereas hierarchical Bayesian models capture multilevel structure but typically require offline inference. We introduce the Hierarchical Online Learning of Multiscale Experience Structure (HOLMES) model, a computational framework for hierarchical latent structure learning through online inference. HOLMES combines a variation on the nested Chinese Restaurant Process prior with sequential Monte Carlo inference to perform tractable trial-by-trial inference over hierarchical latent representations without explicit supervision over the latent structure. In simulations, HOLMES matched the predictive performance of flat models while learning more compact representations that supported one-shot transfer to higher-level latent categories. In a context-dependent task with nested temporal structure, HOLMES also improved outcome prediction relative to flat models. These results provide a tractable computational framework for discovering hierarchical structure in sequential data.
format Preprint
id arxiv_https___arxiv_org_abs_2603_19139
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Hierarchical Latent Structure Learning through Online Inference
Aitsahalia, Ines
Iigaya, Kiyohito
Machine Learning
Neurons and Cognition
Learning systems must balance generalization across experiences with discrimination of task-relevant details. Effective learning therefore requires representations that support both. Online latent-cause models support incremental inference but assume flat partitions, whereas hierarchical Bayesian models capture multilevel structure but typically require offline inference. We introduce the Hierarchical Online Learning of Multiscale Experience Structure (HOLMES) model, a computational framework for hierarchical latent structure learning through online inference. HOLMES combines a variation on the nested Chinese Restaurant Process prior with sequential Monte Carlo inference to perform tractable trial-by-trial inference over hierarchical latent representations without explicit supervision over the latent structure. In simulations, HOLMES matched the predictive performance of flat models while learning more compact representations that supported one-shot transfer to higher-level latent categories. In a context-dependent task with nested temporal structure, HOLMES also improved outcome prediction relative to flat models. These results provide a tractable computational framework for discovering hierarchical structure in sequential data.
title Hierarchical Latent Structure Learning through Online Inference
topic Machine Learning
Neurons and Cognition
url https://arxiv.org/abs/2603.19139