3ZK-7 Study on the Structure and Behavior of Web Spam by Link Hijacking

概要

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Today, many people try to mislead search engines to obtain a higher search ranking and bring more visitors and profits to their sites. This behavior is called web spamming. Link spamming, one of the typical methods of web spamming, manipulates link structure of the Web and deceives link-based ranking algorithms such as PageRank. Link spammers also can hijack links from good sites to their own spam sites which makes link-based ranking algorithms believe spam sites are endorsed by good sites. Although the number of link hijacked sites is small compared to that of total spam sites, hijacked links cause trust leakage so that have a significant effect on link-based ranking algorithms. In this paper, first we computed PageRank, TrustRank and Anti-trust Rank for whole web sites and selected sample hijacked sites with high trust and anti-trust scores. Then, we examined the several features, such as score distributions and types of hijacked sites.
一般社団法人情報処理学会の論文
2008-03-13