Issue No. 03 - March (1979 vol. 1)
Shi-Kuo Chang , Knowledge Systems Laboratory, Department of Information Engineering, University of Illinois, Chicago, IL 60680.
Jyh-Sheng Ke , Knowledge Systems Laboratory, Department of Information Engineering, University of Illinois, Chicago, IL 60680.
The concept of a database skeleton which reflects both the user's conception of the real world and the system's understanding of the interrelationships among database entities is described. It consists of a conceptual schema (conceptual graphs) and a relational schema (information graph). With the aid of the database skeleton, fuzzy queries can be translated and disambiguated by analyzing the queries using the conceptual graphs of a database skeleton. The query language XQL is introduced, and the XQL translator is described in some detail.
Shi-Kuo Chang, Jyh-Sheng Ke, "Translation of Fuzzy Queries for Relational Database System", IEEE Transactions on Pattern Analysis & Machine Intelligence, vol. 1, no. , pp. 281-294, March 1979, doi:10.1109/TPAMI.1979.4766924