Accession Number : ADA140014

Title :   Strategic Explanations for a Diagnostic Consultation System.

Descriptive Note : Technical rept. no. 8,


Personal Author(s) : Hasling,D W ; Clancey,W J ; Rennels,G

PDF Url : ADA140014

Report Date : Nov 1983

Pagination or Media Count : 32

Abstract : This paper examines the problem of automatic explanation of reasoning, especially as it relates to expert systems. By explanation we mean the ability of a program to discuss what it is doing in some understandable way. We first present a general framework in which to view explanation and review some of the research done in this area. We then focus on the explanation system for NEOMYCIN, a medical consultation program. A consultation program interactively helps a user to solve a problem. Our goal is to have NEOMYCIN explain its problem-solving strategies. An explanation of strategy describes the plan the program is using to reach a solution. Such an explanation is usually concrete, referring to aspects of the current problem situation. Abstract explanations articulate a general principle, which can be applied in different situations; such explanations are useful in teaching and in explaining by analogy. We describe the aspects of NEOMYCIN that make abstract strategic explanations possible-the representation of strategic knowledge explicitly and separately from domain knowledge--and demonstrate how this representation can be used to generate explanations. (Author)

Descriptors :   *Artificial intelligence, *Man computer interface, *Computer aided diagnosis, Diagnosis(Medicine), Problem solving, Reasoning, Information processing, Man machine systems, User needs, Medical computer applications

Subject Categories : Human Factors Engineering & Man Machine System

Distribution Statement : APPROVED FOR PUBLIC RELEASE