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Journals ACM SIGART Bulletin Volume 3 Issue 1

The problem of verifying external adequacy in expert systems is addressed in this paper. External adequacy is defined in terms of a formal specification of question relevance, that expresses natural data dependencies among the external facts used in the ontology of the domain of expertise. A method is presented for verifying the expert system, at any stage of development, against the formal specification. The method is based on transforming the knowledge base plus inference engine into a partially ordered set of support graphs. The complex problem of verifying the external adequacy of expert systems is then translated into a simpler path-finding problem in support graphs.

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Using layered support graphs for verifying external adequacy in rule-based expert systems

Valiente, Gabriel
ACM SIGART Bulletin , Volume 3 (1)
Association for Computing Machinery – Jan 1, 1992

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