this research aims to compare the capabilities of a thesaurus and an ontology for representation of domain knowledge. this is the first to focus on the construction of an ontology in library and information science (lis), in the domain of indexing and in persian language. the research also develops the methodology of ontology construction by implementing domain analysis methodology. the present...

Current expert systems represent knowledge in several different forms. In most cases, there is an object or inheritance hierarchy representing static facts about the objects, actions, or events in the domain of application, and the important relationships between them. Other types of knowledge are represented in the form of rules, usually conditionals saying what action should be performed if s...

. This paper describes KRL, a Knowledge Representation Language designed for use in’ understander systems. It outlines both the general.concepts which underlie our research and the details of K RL-0, an experimental implementation of some of these concepts. KRL is an attempt to integrate procedural knowledge with a broad base of declarative forms. These forms provide a variety of ways to expres...

Critical discourse analysis as a type of social practice reveals how linguistic choices enable speakers to manipulate the realizations of agency and power in the representation of action.The present study examines the relationship between language and ideology and explores how such a relationship is represented in the analysis of spoken text and to show how declarative knowledge, beliefs, attit...