Focused crawler based on PageRank and Bagging
Lili Dong · Jisuanji gongcheng yu sheji · 2010
To solve the topic drifting of focused crawler and improve the precise ratio and recall ratio of general search engine results,a focused crawler based on PageRank and Bagging algorithm is put forward. The focused crawler system is divided into two modules. One is search strategy module and another is topic relevant analysis module. Search strategy is carried on by PageRank algorithm and topic relevant analysis is implemented through the Bagging algorithm. At last,the experimental results show that this method can improve the quality of snatch at the webpage and the precise rate of topic web.