Abstract
Medical diagnosis is a planning task in which the operators are actions such as asking for information and drawing an inference. Diagnosis involves interleaving planning and plan execution, since information gathered by the diagnostician may change the future course of diagnosis. In this paper we present an approach to computer-based medical diagnosis called schema-based reasoning. This approach represents the reasoner's planning knowledge as packets of procedural information called schemata; each schema can be applied to achieve a goal. Schemata are retrieved using the goals and other features of a consultation. To facilitate opportunism and reactive planning, several schemata can be active at once. The reasoner switches between them as needed, using information about the consultation and using strategies that are represented as strategic schemata. Our approach is implemented in the MEDIO program, a schema-based diagnostic reasoner whose domain is pulmonology.
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Selected References
These references are in PubMed. This may not be the complete list of references from this article.
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