Harmonic functions based semi-supervised learning for web spam detection.
SAC'11: The 2011 ACM Symposium on Applied Computing TaiChung Taiwan March, 2011(2011)
摘要
In web spam detection, we propose a new semi-supervised learning algorithm named HFSSL (harmonic functions based semi-supervised learning). In our method, labeled and unlabeled web pages are represented as vertices in a weighted graph. The learning problem is then modeled as a Gaussian random field on this graph, where the mean of the field is characterized by harmonic functions, which can be efficiently obtained using matrix methods. The experiments on standard WEBSPAM-UK2006 show that our algorithm is effective.
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