1 刘开瑛,郭丙炎.自然语言理解.北京:科学出版社,1991.2 孟小峰,王珊.数据库自然语言查询系统Nchiql中语
义依存树向SQL的转换.中文信息学报, 2001,15(5):40-45.
3 张连蓬,刘国林,江涛,李云岭,季民.受限自然语言查询在GIS中的应用.测绘学院学报, 2002,19(4):283-285.
4 Calado P, Silva AS, Laender AHF, Ribeiro-Neto B, Vieira RC. A Bayesian network approach to searching web database through keyword-based queries. Information Processing and Management, 2004, 40(5): 773-790.
5 Kyoung-Min K, Jin-Hyuk H, Sung-Bae C. A semantic Bayesian network approach to retrieving information with intelligent conversational agents. Information Processing & Management, 2007, 43(1): 225-236.
6 Ribeiro-Neto B, Muntz R. A belief network model for IR. In: Proceedings of the 19th annual international ACM SIGIR conference on Research and development in information retrieval, New York: ACM Press, 1996. 253-260.