Fuzzy Logic and Inexact Reasoning

CREATED: 200703270857 ** Problem statement

• translation of medical guidelines
• sources of uncertainty ** lack of info ** probabilistic nature ** conflicting information ** Fuzzy logic (Degree of truth)
• fuzzification
• fuzzy inference
• defuzzification ** Inexact reasoning (Degree of belief in rules)
• level of evidence of guidelines
• confirmation (strength of belief) ** classification ** comparative ** quantitative
• Probablity is not suitable here because ** p(a) + p(not a) != 1 ** evidence may support hypothesis but not contrapositive
• Measures of belief/disbelief
• Certainty Factor = Measure of belief - Measure of disbelief
• deals with conflicting rules