期刊名称：Journal of Wireless Mobile Networks, Ubiquitous Computing, and Dependable Applications
印刷版ISSN：2093-5374
电子版ISSN：2093-5382
出版年度：2010
卷号：1
期号：1
页码：86-97
出版社：Innovative Information Science & Technology Research Group
摘要：Social networks express the information .ows of individuals or groups using actors and relation- ships. Along with the growth of WWW, interest in large-scaled social networks has grown bigger. However, social networks being applied in diverse areas are facing with sparsity problems result- ing from a shortage of actual relations with structural properties. Therefore, in this paper, sparsity problems are solved by creating contents based virtual relations applied with the clustering approach. In addition, a reliable social trust model is presented through combinations of actual relations and virtual relations. In experiments, the performance of the proposed approach will be evaluated using connectivity between nodes and F-measures
