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User communities and contents co‐ranking for user‐generated content quality evaluation in social networks
Author(s) -
Li Lei,
Lin Xin,
Zhai Yue,
Yuan Caixia,
Zhou Yanquan,
Qi Jiayin
Publication year - 2014
Publication title -
international journal of communication systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.344
H-Index - 49
eISSN - 1099-1131
pISSN - 1074-5351
DOI - 10.1002/dac.2908
Subject(s) - computer science , user generated content , ranking (information retrieval) , intuition , popularity , quality (philosophy) , graph , social graph , information retrieval , social network (sociolinguistics) , world wide web , social media , theoretical computer science , psychology , social psychology , philosophy , epistemology
Summary With the massive popularity of social networks, more and more users can produce millions of user‐generated contents (UGCs) daily. However, UGC quality is uneven, which has posed challenges to finding superior contents in such a large data set. In this paper, we present a new idea of UGC quality evaluation exploiting user communities, which are formed by users either in a friend circle or with similar interests in social networks. The intuition is that a user community can help evaluate the UGC quality better than a single user. Hence, we propose a new graph‐theoretic user communities and contents co‐ranking (UCCC) algorithm for UGC quality evaluation. UCCC evaluates UGCs and their related user communities simultaneously based on three different relationship networks: the network connecting UGCs, the network connecting user communities, and a third network that ties the two together. Contents and user communities are ranked following a co‐ranking algorithm based on the assumption that there is a mutually reinforcing relationship between them. Experiments using real‐world data have shown that UCCC outperforms competitive algorithms by a good margin in most cases and a user community is more useful than a single user for UGC quality evaluation. Copyright © 2014 John Wiley & Sons, Ltd.