Accession Number : ADA112672

Title :   The Epistemology of a Rule-Based Expert System: A Framework for Explanation.

Descriptive Note : Technical rept. no. 4,

Corporate Author : STANFORD UNIV CA DEPT OF COMPUTER SCIENCE

Personal Author(s) : Clancey,William John

PDF Url : ADA112672

Report Date : Jan 1982

Pagination or Media Count : 74

Abstract : Production rules are a popular representation for encoding heuristic knowledge in programs for scientific and medical problem solving. However, experience with one of these programs, MYCIN, indicates that the representation has serious limitations: people other than the original rule authors find it difficult to modify the rule set, and the rules are unsuitable for use in other settings, such as for application to teaching. These problems are rooted in fundamental limitations in MYCIN's original rule representation: the view that expert knowledge can be encoded as a uniform, weakly-structured set of if/then associations is found to be wanting. (Author)

Descriptors :   *Heuristic methods, *Artificial intelligence, *Problem solving, *Computer aided diagnosis, Computer programs, Computer program documentation, Teaching methods, Interactions, Scientific literature, Medical research, Data management, Data links

Subject Categories : Humanities and History
      Operations Research
      Computer Programming and Software

Distribution Statement : APPROVED FOR PUBLIC RELEASE