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Overview:

This paper presents a novel approach to combating web spam. In the spirit of Luis von Ahn's games with a purpose, they propose using a two player game to identify spam pages within search results. Their game asks users to classify a page as either highly relevant to a query or not relevant to a query, with the option of passing. They use data from the game as the input to a simple voting algorithm which determines whether a page is spam. They show that the best strategy for users playing the game for fun is to answer truthfully, and that spammers have difficulty obstructing the game.

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Format:PDFSize:175 KB
Date:Jun 2007
Pages:22

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