The Key Technologies Based On The Ontology Q Query System And Realization

With the development of network technology and its broad application, remote education has been paid more and more attention. As one part of it, question answer system plays an important role at communication between the teacher and student. The traditional answer systems concentrate on the way of answering and the real-time of the system. Semantic understanding, the most important of answer system has not been involved.To solve this problem of above, this paper regards field ontology as the foundation of semantic understanding. Ontology is a kind of modal that is used to describe the concepts and the relations of them. Field ontology is a kind of ontology. It includes abundance knowledge and semantic relations of this field. Through applying these resources to question answer system by a certain way. It is impossible to solve the problem of semantic understand insufficiency in a way.This paper firstly introduces the correlated ontology concepts. Then introduces the ontology building process based on the characteristic of question answer system. In the following we look up some common question modals by analyzing question grammar, so we can use transition network to deal with them and directly search answer in ontology; discuss the computing method of semantic similarity between word and word, bring forward a computing method based on ontology in place of based on semantic tree. Finally we introduce a realization of prototype system, through the analysis of experimentation data, it proves that our arithmetic is right and feasible.