Fuzzy set theory and medical expert systems: Survey and model
In recent years, fuzzy set theory and Fuzzy Logic are applied successfuly in medical expert systems as CADIAG, MILORD etc. This paper intends to provide a short survey on application of fuzzy set theory in medicine, especialy, fuzzy logic in medical expert systems. An improved fuzzy inference model of CADIAG-2 for medical diagnosis combining negative and positive evidence is presented. This model can be used for obtain more smooth transition between confirmed and disconfirmed diagnoses.
KeywordsFuzzy set theory and fuzzy logic fuzzy inference model negative and positive evidence
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