Topological Machine Learning with Unreduced Persistence Diagrams

Fuente: arXiv
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Autores principales: Abreu, Nicole, Edwards, Parker B., Motta, Francis
Formato: Preprint
Publicado: 2025
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author Abreu, Nicole
Edwards, Parker B.
Motta, Francis
author_facet Abreu, Nicole
Edwards, Parker B.
Motta, Francis
contents Supervised machine learning pipelines trained on features derived from persistent homology have been experimentally observed to ignore much of the information contained in a persistence diagram. Computing persistence diagrams is often the most computationally demanding step in such a pipeline, however. To explore this, we introduce several methods to generate topological feature vectors from unreduced boundary matrices. We compared the performance of pipelines trained on vectorizations of unreduced PDs to vectorizations of fully-reduced PDs across several data and task types. Our results indicate that models trained on PDs built from unreduced diagrams can perform on par and even outperform those trained on fully-reduced diagrams on some tasks. This observation suggests that machine learning pipelines which incorporate topology-based features may benefit in terms of computational cost and performance by utilizing information contained in unreduced boundary matrices.
format Preprint
id arxiv_https___arxiv_org_abs_2507_07156
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Topological Machine Learning with Unreduced Persistence Diagrams
Abreu, Nicole
Edwards, Parker B.
Motta, Francis
Machine Learning
Computational Geometry
Algebraic Topology
55N31
Supervised machine learning pipelines trained on features derived from persistent homology have been experimentally observed to ignore much of the information contained in a persistence diagram. Computing persistence diagrams is often the most computationally demanding step in such a pipeline, however. To explore this, we introduce several methods to generate topological feature vectors from unreduced boundary matrices. We compared the performance of pipelines trained on vectorizations of unreduced PDs to vectorizations of fully-reduced PDs across several data and task types. Our results indicate that models trained on PDs built from unreduced diagrams can perform on par and even outperform those trained on fully-reduced diagrams on some tasks. This observation suggests that machine learning pipelines which incorporate topology-based features may benefit in terms of computational cost and performance by utilizing information contained in unreduced boundary matrices.
title Topological Machine Learning with Unreduced Persistence Diagrams
topic Machine Learning
Computational Geometry
Algebraic Topology
55N31
url https://arxiv.org/abs/2507.07156