Community Detection in Large-Scale Complex Networks via Structural Entropy Game

Fuente: arXiv
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Autori principali: Xian, Yantuan, Li, Pu, Peng, Hao, Yu, Zhengtao, Xiang, Yan, Yu, Philip S.
Natura: Preprint
Pubblicazione: 2025
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author Xian, Yantuan
Li, Pu
Peng, Hao
Yu, Zhengtao
Xiang, Yan
Yu, Philip S.
author_facet Xian, Yantuan
Li, Pu
Peng, Hao
Yu, Zhengtao
Xiang, Yan
Yu, Philip S.
contents Community detection is a critical task in graph theory, social network analysis, and bioinformatics, where communities are defined as clusters of densely interconnected nodes. However, detecting communities in large-scale networks with millions of nodes and billions of edges remains challenging due to the inefficiency and unreliability of existing methods. Moreover, many current approaches are limited to specific graph types, such as unweighted or undirected graphs, reducing their broader applicability. To address these issues, we propose a novel heuristic community detection algorithm, termed CoDeSEG, which identifies communities by minimizing the two-dimensional (2D) structural entropy of the network within a potential game framework. In the game, nodes decide to stay in current community or move to another based on a strategy that maximizes the 2D structural entropy utility function. Additionally, we introduce a structural entropy-based node overlapping heuristic for detecting overlapping communities, with a near-linear time complexity.Experimental results on real-world networks demonstrate that CoDeSEG is the fastest method available and achieves state-of-the-art performance in overlapping normalized mutual information (ONMI) and F1 score.
format Preprint
id arxiv_https___arxiv_org_abs_2501_15130
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Community Detection in Large-Scale Complex Networks via Structural Entropy Game
Xian, Yantuan
Li, Pu
Peng, Hao
Yu, Zhengtao
Xiang, Yan
Yu, Philip S.
Social and Information Networks
Community detection is a critical task in graph theory, social network analysis, and bioinformatics, where communities are defined as clusters of densely interconnected nodes. However, detecting communities in large-scale networks with millions of nodes and billions of edges remains challenging due to the inefficiency and unreliability of existing methods. Moreover, many current approaches are limited to specific graph types, such as unweighted or undirected graphs, reducing their broader applicability. To address these issues, we propose a novel heuristic community detection algorithm, termed CoDeSEG, which identifies communities by minimizing the two-dimensional (2D) structural entropy of the network within a potential game framework. In the game, nodes decide to stay in current community or move to another based on a strategy that maximizes the 2D structural entropy utility function. Additionally, we introduce a structural entropy-based node overlapping heuristic for detecting overlapping communities, with a near-linear time complexity.Experimental results on real-world networks demonstrate that CoDeSEG is the fastest method available and achieves state-of-the-art performance in overlapping normalized mutual information (ONMI) and F1 score.
title Community Detection in Large-Scale Complex Networks via Structural Entropy Game
topic Social and Information Networks
url https://arxiv.org/abs/2501.15130