Sreangsu Acharyya
ABSTRACT
A parameterized family of non-linear, link analytic ranking functions is proposed that includes Pagerank as a special case and uses the convexity property of those functions to be more resistant to link spam attacks. A contribution of the paper is the construction of such a scheme with provable uniqueness and convergence guarantees. The paper also demonstrates that even in an unlabelled scenario this family can have spam resistance comparable to Trustrank [3] that uses labels of spam or nat-spam on a training set. The proposed method can use labels, if available, to improve its performance to provide state of the art level of link spam protection.
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- Persi Diaconis and R. L. Graham. Spearman's footrule as a measure of disarray. Journal of the Royal Statistical Society. Series B (Methodological), 39(2):262--268, 1977.Google ScholarCross Ref
- Zoltán Gyongyi, Hector Garcia-Molina, and Jan Pedersen. Combating web spam with trustrank. In VLDB, pages 576--587, 2004. Google ScholarDigital Library
Index Terms
- A spam resistant family of concavo-convex ranks for link analysis
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