关键词:网络答疑系统; 答疑本体; 语义匹配
Study on generation and match of question answering ontology
SUN Xia1, HONG Hua2, WANG Xin3
(1.Dept. of Computer, School of Information Science & Technology, Northwest University, Xian 710069, China; 2.Dept. of Network Engineering, Engineering Institute, Air Force Engineering University, Xian 710077, China; 3. China National Electric Apparatus Research Institute, Guangzhou 510302,China)
Aiming at the requirements and traits of question answering systems, designed a structure of question answering ontology, which was the representation of natural language questions, and provided a well retrieval mechanism. Meanwhile, proposed an approach of ontology acquisition, which could decrease the costs of development manually. Finally, proposed formula in order to computer semantic similarity between sentences basing on question answering ontology. Now, the proposed ontology has already been implemented and applied in the natural language oriented Web answer system (NL-WAS), it shows that the question answering ontology can improve the result of the question search of NL-WAS system effectively. ......