A LOGIC PROGRAMMING APPROACH TO FRAME-BASED LANGUAGE DESIGN

In this paper, we will propose a logic programming approach to design a frame-based language. The relationship among frame, logic and Prolog is our basic design issue. Frame is considered as a collection of slot-relations, and frame reference/inference procedure can be specified in logic form. Prolog is used to represent all of these concepts. Frame is encoded with Prolog facts and rules. This type of frame representation has the advantages of multiple access methods, ease of frame modification, slot inference rule creation and faster recognition. A frame recognition algorithm, similarity reference, is given as an example using our frame notation. With this approach, on the one hand, the semantics of logic makes it quite clear what frame and its deduction mean, and on the other hand, the simply extended Prolog will be more adequate and efficacious to represent knowledge. 1