An Information Retrieval System for Malayalam Using Query Expansion Technique

Malayalam is the administrative language of the south Indian state of Kerala and also of the Lakshadweep islands of west coast of India. This work explain an efficient monolingual information retrieval system for Malayalam using query expansion technique, which returns Malayalam documents in response to query in Malayalam. The proposed system uses synonym mapping to improve the efficiency of document retrieval. This technique help to overcome vocabulary mismatch issues by expanding user query with additional relevant terms and reweighting the terms in expanded user query. The developed system is domain independent and used in different Natural Language Processing (NLP) tasks in Classical language like Malayalam.