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Erschienen in:
2015 | OriginalPaper | Buchkapitel
Differential Trust Propagation with Community Discovery for Link-Based Web Spam Demotion
verfasst von : Xianchao Zhang, Yafei Feng, Hua Shen, Wenxin Liang
Erschienen in: Web-Age Information Management
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In this paper, we propose a novel differential trust propagation scheme with community discovery, which can be applied to all kinds of trust propagation algorithms. We first use a random walk-based community discovery algorithm to preselect suspicious communities in which the members are almost spam pages. We then utilize these suspicious communities to limit the across-community-boundary trust propagation. Experimental results on WEBSPAM-UK2007 and ClueWeb09 demonstrate that the proposed penalizing scheme significantly improves the performance of trust propagation algorithms such as TrustRank, LCRank, CPV.