¹School of Mathematics and Physics, University of Science and Technology Beijing, Beijing, 100083, China
²School of Sciences, China Agricultural University, Beijing, 100083, China

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Abstract—In this paper, we introduce a novel fuzzy method which is combined fuzzy relation, interaction probability values and hub structure to detect sub-communities in complex networks. We apply our method on yeast proteinprotein interaction network to identify the protein complexes. Compared with traditional method, more protein complexes have been identified by this new fuzzy method. Meanwhile, we evaluate our method on two real social networks. The experimental results show that our method works well and give a reasonable understanding of these communities.

Index Terms—Complex networks, fuzzy clustering, subcommunities, protein complexes, PPI networks.

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Cite: Danling Wang, Yanfei Wang, "Identification of Protein Complexes in PPI Networks by a Fuzzy Method," Journal of Software vol. 8, no. 12, pp. 3132-3138, 2013.