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A comparison of three methods for computing the center of gravity defuzzification

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2 Author(s)
Van Broekhoven, E. ; Dept. of Appl. Math., Biometrics & Process Control, Ghent Univ., Gent, Belgium ; De Baets, B.

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.

Published in:

Fuzzy Systems, 2004. Proceedings. 2004 IEEE International Conference on  (Volume:3 )

Date of Conference:

25-29 July 2004