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A Posteriori Approach for Community Detection

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Abstract

Conventional community detection approaches in complex network are based on the optimization of a priori decision, i.e., a single quality function designed beforehand. This paper proposes a posteriori decision approach for community detection. The approach includes two phases: in the search phase, a special multi-objective evolutionary algorithm is designed to search for a set of tradeoff partitions that reveal the community structure at different scales in one run; in the decision phase, three model selection criteria and the Possibility Matrix method are proposed to aid decision makers to select the preferable solutions through differentiating the set of optimal solutions according to their qualities. The experiments in five synthetic and real social networks illustrate that, in one run, our method is able to obtain many candidate solutions, which effectively avoids the resolution limit existing in priori decision approaches. In addition, our method can discover more authentic and comprehensive community structures than those priori decision approaches.

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Authors and Affiliations

  1. School of Computer, Beijing University of Posts and Telecommunications, Beijing, 100876, China

    Chuan Shi (Member, CCF, IEEE), Xin Pan, Ya-Nan Cai & Bin Wu (Member, CCF)

  2. Research Department, Fair Isaac Corporation (FICO), San Rafael, CA, 94903, U.S.A.

    Zhen-Yu Yan (Member, IEEE)

Authors
  1. Chuan Shi
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  2. Zhen-Yu Yan
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  3. Xin Pan
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  4. Ya-Nan Cai
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  5. Bin Wu
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Corresponding author

Correspondence to Chuan Shi.

Additional information

Supported by the National Natural Science Foundation of China under Grant Nos. 60905025, 61074128, 61035003, the National High Technology Research and Development 863 Program of China under Grant No. 2009AA04Z136.

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Shi, C., Yan, ZY., Pan, X. et al. A Posteriori Approach for Community Detection. J. Comput. Sci. Technol. 26, 792–805 (2011). https://doi.org/10.1007/s11390-011-0178-z

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  • DOI: https://doi.org/10.1007/s11390-011-0178-z

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