A kind of algorithm for page ranking based on classified tree in search engine

Algorithm of page ranking is the core of search engine. This paper proposes a new type of algorithm of page ranking by combining classified tree with static algorithm of page ranking-PageRank, which enables the classified tree to be constructed according to a large number of users´ similar searching results, and can obviously reduce the problem of Theme-Drift, caused by using PageRank only, and problem of outdated web pages. It improves the searching efficiency without reducing the searching speed, which provides the users with the abundant expanded information relevant to searching content.