Question Answering System Using Ontology in Marathi Language

摘要

Humans are always in a quest to extract information related to some topic or entity. Question answeringsystem helps user to find the precise answer of the question articulated in natural language. Questionanswering system provides explicit, concise and accurate answer to user questions rather than providingset of relevant documents or web pages as answers as most of the information retrieval system does. Thepaper proposes question answering system for Marathi natural language by using concept of ontology as aformal representation of knowledge base for extracting answers. Ontology is used to express domainspecific knowledge about semantic relations and restrictions in the given domains. The ontologies aredeveloped with the help of domain experts and the query is analyzed both syntactically and semantically.The results obtained here are accurate enough to satisfy the query raised by the user. The level of accuracyis enhanced since the query is analyzed semantically.