Faculty of Computers and Information Sciences Ain Shams Unversity Summary

Searching online provides you with a wealth of information, but not all of it will be useful or of the highest quality. Search engines are distributed programs that dive into the World Wide Web to find relevant information for a given search query. Their fundamental components are: the crawlers, the indexer module, the collection analysis module, the query engine, and the ranking module. Many of today’s search engines use a traditional text process to retrieve pages related to a user’s query. Traditional text processing is done to find all documents using the query terms, or related to the query terms by semantic meaning. With the massive size of the web, this result in thousands of retrieved pages may or may not related to the query. The main function of the ranking module is to sort the search results by relevance or importance using information retrieval (IR) algorithms. There were two kinds of methods in information retrieval, based o