PUMA
Istituto di Scienza e Tecnologie dell'Informazione     
Donato D., Gionis A., Murdock V., Silvestri F. Method of detecting spam hosts based on propagating prediction labels. Patent n. 20090089285. Registered in New York on 2007.
 
 
Abstract
(English)
Systems and methods for identifying spam hosts are disclosed in which hosts are known to the system and initially classified as spam or non-spam by a baseline classifier. The accuracy of the initial host classifications are then improved by propagating them using a random walk algorithm. The random walk used may be modified in order to obtain a weighted or skewed characterization of the host. The hosts may then be reclassified based on the characterization obtained from the random walk to obtain a final spam/non-spam classification. The final classification may then be used in many different ways including to filter search results based on host classifications so that spam hosts are not displayed or displayed last in a results set.
URL: http://www.freepatentsonline.com/y2009/0089285.html
Subject Web Spam detection
H.4.m Information Systems Applications. Miscellaneous


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