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Fuzzy Inference System Case Study

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CHAPTER 2

LITERATURE
SURVEY

CHAPTER 2 : LITRETURE SURVEY

2.1 SURVEY IN MEDICAL DIAGNOSIS USING ARTIFICIAL INTELLIGENCE TECHNIQUES : -

Many intelligent systems have been developed for the purpose of enhancing health-care and provide better health care facilities, reduce cost and etc.

2.2 OVERALL ARCHITECTURE OF MEDICAL DIAGNOSIS USING ARTIFICIAL INTELLIGENCE TECHNIQUES:-

The Centralized databases and www (World Wide Web) shares the patient data among the different cities used by doctor /practitioners for diagnosis. Single database system was only accessible to that city but the centralized database is accessed by all the cities. Fig2 shows the sharing knowledge between different cities where …show more content…
The fuzzy value v obtained from the patient’s conditions /symptoms for the feature rij as s[rij]. This cause/effect δij would be one of the fuzzy sets Yes, No and May Be. represented by: δij = Pij [rij , s[rij]]
By summing up the cause/effect of all ki relevant features, the complete diagnosis decision for the ith disease obtained as given below: When diagnosing a disease, weighting factor wij introduced which allow the physician to specify some features have more or less significance than others features and then set proper relative values to weights. If all the features have the same significance, then the weighting factor will be unity for all features. Hence the new complete diagnosis decision value given as : Finally, to obtain crisp values that specifying the certainty of presence for every disease in the set

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