Noting that expert computer systems respond to various contexts in terms of knowledge representation, this paper explains that heuristic rules of production, procedural representation, and frame representation have been adapted to such areas as medical diagnosis, signal interpretation, design and planning of electrical circuits and computer system…

Presents a framework for dealing with errors in natural language sentences within the context of automated second-language teaching. Using a feature grammar, it is possible to describe various types of errors in a uniform framework, clearly define an error, and analyze the error source. (24 references) (Author/CK)

The purpose of this paper is to describe the function of English articles in a functional-pragmatic perspective, to clarify how the functions of the articles are reflected in the discourse, and to give some pedagogical implications for teaching English as a foreign language (EFL). Deixis is a grammatical category involving reference to…