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1988
Journal Article
Titel
Statistical expert systems
Abstract
An expert system is a computer program that performs at the level of a human expert in a complex but narrow field. Two types of expert systems which involve statistical expertise are statistical consulting programs which find patterns in databases. Consulting programs can now be built quickly using programming tools. Expert systems also use statistical expertise. Most systems include mechanisms for reasoning under uncertainty. Methods under investigation include fuzzy logic. Dempster-Shafer theory, Bayesian analysis and various ad hoc methods. Learning systems use statistics to infer inductive rules. As well, statistical reasoning will be used to evaluate the performance of expert systems. The use of a prototype statistical expert system, X SAMPLE, is demonstrated, as a system designed to handle a consulting session with a statistically moderately advanced user. (INT)