A maximal clique based multiobjective evolutionary algorithm for overlapping community detection

Xuyun Wen, Wei Neng Chen, Ying Lin, Tianlong Gu, Huaxiang Zhang, Yun Li, Yilong Yin, Jun Zhang

Research output: Contribution to journalArticle

69 Citations (Scopus)
35 Downloads (Pure)

Abstract

Detecting community structure has become one important technique for studying complex networks. Although many community detection algorithms have been proposed, most of them focus on separated communities, where each node can belong to only one community. However, in many realworld networks, communities are often overlapped with each other. Developing overlapping community detection algorithms thus becomes necessary. Along this avenue, this paper proposes a maximal clique based multiobjective evolutionary algorithm (MOEA) for overlapping community detection. In this algorithm, a new representation scheme based on the introduced maximal-clique graph is presented. Since the maximalclique graph is defined by using a set of maximal cliques of original graph as nodes and two maximal cliques are allowed to share the same nodes of the original graph, overlap is an intrinsic property of the maximal-clique graph. Attributing to this property, the new representation scheme allows MOEAs to handle the overlapping community detection problem in a way similar to that of the separated community detection, such that the optimization problems are simplified. As a result, the proposed algorithm could detect overlapping community structure with higher partition accuracy and lower computational cost when compared with the existing ones. The experiments on both synthetic and real-world networks validate the effectiveness and efficiency of the proposed algorithm.

Original languageEnglish
Article number7558207
Pages (from-to)363-377
Number of pages15
JournalIEEE Transactions on Evolutionary Computation
Volume21
Issue number3
Early online date1 Sep 2016
DOIs
Publication statusPublished - 1 Jun 2017

Keywords

  • clique-based representation
  • maximal-clique graph
  • multiobjective evolutionary algorithm (MOEA)
  • overlapping community detection

Fingerprint Dive into the research topics of 'A maximal clique based multiobjective evolutionary algorithm for overlapping community detection'. Together they form a unique fingerprint.

  • Cite this