Information Retrieval using Context Based Document Indexing

Abstract

Information retrieval is task of retrieving relevant information according to query of user. A brief idea is presented in this paper about document retrieval using context based indexing approach. Here lexical association is used to separate content carrying terms and background terms. Content carrying terms are used as they give idea about theme of the document. Indexing weight calculation is done for content carrying terms. Lexical association measure is used to calculate indexing weight of terms. The term having higher indexing weight is considered as important and sentence which contains these terms is also important. When user enters search query, the important terms are matched with the terms with higher weights in order to retrieve documents. The documents which are relevant are retrieved according to importance of sentences. Using this approach information can be retrieved efficiently.