a method for defuzzi cation by weighted distance

A Method for Defuzzication by Weighted Distance

a method for defuzzication by weighted distance

A New Derivation of Centroid Defuzzi cation

We describe a new symmetry-based derivation of centroid defuzziication. The Need for Defuzziication. Fuzzy logic and fuzzy control start with the knowledge expressed by experts in terms of words from a natural language, and end up with control or decision recommendations; see, e.g., 1, 2, 4]. As a result of the standard fuzzy control methodology, we get a fuzzy set (membership function) (u) whi...

An iterative approach for estimation of efficiency by weighted distance

an iterative approach for estimation of efficiency by weighted distance

Action aggregation and defuzzi cation in Mamdani-type fuzzy systems

This paper discusses the issues of action aggregation and defuzziŽ cation in Mamdani-type fuzzy systems. The paper highlights the shortcomings of defuzziŽ cation techniques associated with the customary interpretation of the sentence connective ‘and ’ by means of the set union operation. These include loss of smoothness of the output characteristic and inaccurate mapping of the fuzzy response. ...