Implementation of Conceptual Graphs using Frames in LEAD

This paper chiefly discusses the implementation of Sowa's Conceptual Graph notation using a frame-like data structure. Conceptual graphs serve as the basis for knowledge representation in our two systems, LEAD (Learning Expert system for Agricultural Domain) and XLAR (Universal Learning ARchitecture). The importance of conceptual graphs in knowledge representation is also briefly accounted for. Rationale for choosing frames for conceptual graph implementation is presented. Comparison of this implementation with other extant implementations is made.