Trust Rank Algo

TrustRank is a link analysis technique .
Many Web spam pages are created only with the intention of misleading search engines. These pages, chiefly created for commercial reasons, use various techniques to achieve higher-than-deserved rankings on the search engines' result pages. While human experts can easily identify spam, it is too expensive to manually evaluate a large number of pages.

One popular method for improving rankings is to increase artificially the perceived importance of a document through complex linking schemes. Google's PageRank and similar methods for determining the relative importance of Web documents have been subjected to manipulation.

TrustRank can be use :


Automatically boost pages that have a high probablility of being good, as well as demote the rankings of pages that have a high probability of being bad.

search engines identify what pages should be good canidates for quality review