Semantic Query and Reasoning System based on Domain Ontology

To solve the problems such as isolation of information, poor sharing and reusability, difficulty of finding resources and providing personalized information service, a solution method of ontology-based query and reasoning was introduced. According to the method a function module and working process of retrieval, query and reasoning were designed. A corresponding system was implemented by using Jena and SPARQL. The implementation and experimental results indicated that the method was feasible and effective. It is concluded that this system can provide organic organization, sharing and reusing of information content, and personalized information service.