Graph-Based Formalisms for Knowledge Representation

摘要

Graph-based formalisms provide an intuitive and easily understandable vehicle for knowledge representation. In this paper several existing graph-based formalisms are described. Furthermore, a new graph-based formalism for knowledge representation is defined. Basic concepts for graphical representation (nodes and links) as well as their variation are described. Context node, context link and process node are defined in order to represent different kinds and levels of knowledge. A knowledge network diagram defined from sentences expressed in natural language is presented. The main goal of this formalism is to present knowledge stored in textual fields in the databases.