A spectral analysis approach for social media community detection

Authors:
Xuning Tang;Christopher C. Yang;Xiajing Gong
Affiliations:
College of Information Science and Technology, Drexel University, Philadelphia;College of Information Science and Technology, Drexel University, Philadelphia;School of Biomedical Engineering, Drexel University, Philadelphia
Venue:
SocInfo'11 Proceedings of the Third international conference on Social informatics
Year:
2011

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Abstract

Online forums are ideal platforms for worldwide Internet users to share ideas, raise discussions and disseminate information. It is of great interest to gain a better understanding on the dynamic of user interactions and identify user communities in online forums. In this paper, we propose a temporal coherence analysis approach to detect user communities in online forum. Users are represented by vectors of activeness and communities are extracted by a soft community detection algorithm with the support of spectral analysis.