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In this article three methods are presented to perform the center of gravity defuzzification method: one well known method, the discretisation method, and two new methods, the slope-based method and the modified transformation function method. The methods are worked out for trapezoidal membership functions forming a fuzzy (Ruspini) partition. Experimental results show that the newly introduced methods exhibit excellent accuracy at an extremely low computational cost compared to the widely applied discretisation method.
Fuzzy Systems, 2004. Proceedings. 2004 IEEE International Conference on (Volume:3 )
Date of Conference: 25-29 July 2004