Community gravity: measuring bidirectional effects by trust and rating on online social networks

Yutaka Matsuo, Hikaru Yamamoto. Community gravity: measuring bidirectional effects by trust and rating on online social networks. In Juan Quemada, Gonzalo León, Yoëlle S. Maarek, Wolfgang Nejdl, editors, Proceedings of the 18th International Conference on World Wide Web, WWW 2009, Madrid, Spain, April 20-24, 2009. pages 751-760, ACM, 2009. [doi]

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