The Genetic Algorithms to build Fuzzy Logic Membership Functions

Membership Functions Optimization of Fuzzy Control Based on Genetic Algorithms

The principle and implementation procedure of genetic algorithms were introduced and were applied to optnmze the parameters of fuzzy controller which control the superheat of evaporator in refrigeration system. Simulation results of performance of optimized fuzzy control rules, comparing with the primary rules, were obtained.

CMOS fuzzy logic controller supporting fractional polynomial membership functions

This paper presents a new Fuzzy Logic Controller (FLC) having the ability to support fractional polynomial membership functions. These functions are general forms of triangular and trapezoidal membership functions, and also those functions which are used in linguistic hedge FLC (LHFLC). A two-input, single-output Takagi–Sugeno–Kang (TSK) type 0 FLC is designed in 0.35 μm standard CMOS process. ...

Design of High Performance Fuzzy Controllers Using Flexible Parameterized Membership Functions and Intelligent Genetic Algorithms

This paper proposes a method for designing high performance fuzzy controllers with a compact rule system. The method is mainly derived from flexible parameterized membership functions (FPMFs) and a novel intelligent genetic algorithm (IGA). Each FPMF consists of flexible trapezoidal fuzzy sets that the fuzzy set is encoded by five parameters. Furthermore, the membership functions and fuzzy rule...

Simultaneous design of membership functions and rule sets for fuzzy controllers using genetic algorithms

This paper examines the applicability of genetic algorithms (GA’s) in the simultaneous design of membership functions and rule sets for fuzzy logic controllers. Previous work using genetic algorithms has focused on the development of rule sets or high performance membership functions; however, the interdependence between these two components suggests a simultaneous design procedure would be a m...

Genetic Algorithms and Fuzzy Logic in ControlProcesses