The Research Of Intelligent Question Answering System Based On Ontology

With the development of Internet technology and its broad application, intelligent question answering system has been paid more and more attention in education domain. The existing Question Answering System is mainly based on keywords enquiries, and has the low accuracy. To improve the accuracy of existing Question Answering System, reasonable designing of the Intelligent Question Answering System must be based on the semantic level organization and expression of information.In this paper, on the basis of studying the status of development of Intelligent Answering System, firstly, the author puts forward the point that ontology technology is the semantic basis of the Intelligent Answering System, and proposes studying plan of the Ontology-based Intelligent Answering System. Then, constructs ontology model of linear structure in Data Structure, summarizes basic process of ontology construction in the education field, generates OWL+RDF-based formal documents in the use of ontology editor protégé₃.2. Finally, according to constructing ontology modeling hierarchical structure, designing data structure of the knowledge base of Intelligent Answering System, the author maps the constructed ontology modeling to ACCESS database, lays the semantic foundation for Intelligent Answering System, structures segmenting system specifically for Data Structure, arranges user queries model, realizes the ontology-based linear Intelligent Answering System by VC++ Language. With contrast between the general search and potential search of semantics, analytic result verifies that ontology-based Intelligent Answering System improves the accurate survey rate and the entire investigation rate of the problem.The contents of the paper is the research of Intelligent Question Answering System based on ontology, the author makes an attempt to create a new idea and program for the application of ontology in Intelligent Question Answering System. Through simulated experiment the author verifies the function of designing program in this paper, and in a certain extent, the accuracy of Intelligent Question Answering System is greatly improved, and the needs of learners'are satisfied much better.