Phase transition in spectral clustering based on resistance matrix

Wei Lin, Min Li, Shuming Zhou, Jiafei Liu, Gaolin Chen and Qianru Zhou

Physica A: Statistical Mechanics and its Applications, 2021, vol. 566, issue C

Abstract: Community detection is a significant strategy to reveal the structure and function of real-world networks, especially in the era of social big data. Compared with the traditional spectral clustering algorithm for community detection, the spectral clustering algorithm based on resistance matrix reduces the computational complexity. In this work, we first show the presence of a phase transition for community detection strategy based on resistance matrix and show the critical condition in the accuracy of community detection. In detail, when the resistance distance r3 between subnetworks Ci(i=1,2) approaches r∗=n1r1+n2r2n, the detectability of community detection mutates suddenly, where ri(i=1,2) is the mean resistance distance of Ci. Finally, the actual critical value is verified by simulation experiments.

Keywords: Resistance distance; Phase transition; Community detection; Social network (search for similar items in EconPapers)
Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:566:y:2021:i:c:s0378437120308967

DOI: 10.1016/j.physa.2020.125598

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