The Evolution of Knowledge-Base Systems and Languages
知识库系统和语言的演变

In this paper,the development of knowledge-base systems and languages during the past decade is discussed. Three kinds of knowledge-base systems which have been implemented since 1982 are intruduced. They are "Prolog+SQL systems ","CATALOG extended systems" and "Procedural language 4-DATALOGe systems". A brief survey of these systems and the future work of knowledge-base systems and languages are given also.