A Set-to-Set Distance Measure in Hyperbolic Space

Fuente: arXiv
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Main Authors: Li, Pengxiang, Wu, Wei, Gao, Zhi, Fan, Xiaomeng, Yu, Peilin, Wu, Yuwei, Lu, Zhipeng, Jia, Yunde, Harandi, Mehrtash
Format: Preprint
Published: 2025
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author Li, Pengxiang
Wu, Wei
Gao, Zhi
Fan, Xiaomeng
Yu, Peilin
Wu, Yuwei
Lu, Zhipeng
Jia, Yunde
Harandi, Mehrtash
author_facet Li, Pengxiang
Wu, Wei
Gao, Zhi
Fan, Xiaomeng
Yu, Peilin
Wu, Yuwei
Lu, Zhipeng
Jia, Yunde
Harandi, Mehrtash
contents We propose a hyperbolic set-to-set distance measure for computing dissimilarity between sets in hyperbolic space. While point-to-point distances in hyperbolic space effectively capture hierarchical relationships between data points, many real-world applications require comparing sets of hyperbolic data points, where the local structure and the global structure of the sets carry crucial semantic information. The proposed the \underline{h}yperbolic \underline{s}et-\underline{to}-\underline{s}et \underline{d}istance measure (HS2SD) integrates both global and local structural information: global structure through geodesic distances between Einstein midpoints of hyperbolic sets, and local structure through topological characteristics of the two sets. To efficiently compute topological differences, we prove that using a finite Thue-Morse sequence of degree and adjacency matrices can serve as a robust approximation to capture the topological structure of a set. In this case, by considering the topological differences, HS2SD provides a more nuanced understanding of the relationships between two hyperbolic sets. Empirical evaluation on entity matching, standard image classification, and few-shot image classification demonstrates that our distance measure outperforms existing methods by effectively modeling the hierarchical and complex relationships inherent in hyperbolic sets.
format Preprint
id arxiv_https___arxiv_org_abs_2506_18529
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle A Set-to-Set Distance Measure in Hyperbolic Space
Li, Pengxiang
Wu, Wei
Gao, Zhi
Fan, Xiaomeng
Yu, Peilin
Wu, Yuwei
Lu, Zhipeng
Jia, Yunde
Harandi, Mehrtash
Computer Vision and Pattern Recognition
Machine Learning
We propose a hyperbolic set-to-set distance measure for computing dissimilarity between sets in hyperbolic space. While point-to-point distances in hyperbolic space effectively capture hierarchical relationships between data points, many real-world applications require comparing sets of hyperbolic data points, where the local structure and the global structure of the sets carry crucial semantic information. The proposed the \underline{h}yperbolic \underline{s}et-\underline{to}-\underline{s}et \underline{d}istance measure (HS2SD) integrates both global and local structural information: global structure through geodesic distances between Einstein midpoints of hyperbolic sets, and local structure through topological characteristics of the two sets. To efficiently compute topological differences, we prove that using a finite Thue-Morse sequence of degree and adjacency matrices can serve as a robust approximation to capture the topological structure of a set. In this case, by considering the topological differences, HS2SD provides a more nuanced understanding of the relationships between two hyperbolic sets. Empirical evaluation on entity matching, standard image classification, and few-shot image classification demonstrates that our distance measure outperforms existing methods by effectively modeling the hierarchical and complex relationships inherent in hyperbolic sets.
title A Set-to-Set Distance Measure in Hyperbolic Space
topic Computer Vision and Pattern Recognition
Machine Learning
url https://arxiv.org/abs/2506.18529