SEARCH ENGINES: INFORMATION RETRIEVAL ON THE WEB

Information on the web is huge and search engines are used for Information Retrieval on the Web. Information Retrieval deals with the representation, storage and organization of data. Search engines are an application of Information Retrieval on the web. The user search query issued for web search retrieves a large collection of web documents out of which very few are relevant. Google search engine has been used widely for web information retrieval. The major challenge in the field of Information retrieval is to increase the number of relevant documents and satisfy the information need of the user. This article explains the generic architecture of search engines, working of search engines and challenges in the field of Web Information Retrieval.