Researching Of Search Engine

With rising of Web infomation on the way of geometric series, Search engine is a tool of Internet infomation retrieval, which is developed since 1995. And now Search engine is widely applied to much more fields. But the function of Search engine can not meet the people's need, because the Web infomations are not isomorphic.This paper improves the technology of traditional Search engine, sush as setting up the indexes by suffix array. When the user enters a string he wants to search in the Web, the Search engine can search this string in indexes directly, so it is very efficient. To improve the accuracy of Search engine, data classifying and negative feedback technologies are also applied to the Search engine. The Search engine can remember the results the users selected, and find the common of these results by Data Mining. Then the Search engine changes its searching strategy to fit the users'personality.The accuracy of search engine has improved, it is very useful in the application.