Journal
COMPUTERS & MATHEMATICS WITH APPLICATIONS
Volume 55, Issue 9, Pages 2033-2042Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.camwa.2007.07.015
Keywords
centroid point; fuzzy numbers; original point; ranking; revised
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In 2002, Chu and Tsao proposed a method to rank fuzzy numbers. They employed an area between the centroid and original points to rank fuzzy numbers; however there were some problems with the ranking method. In this paper, we want to indicate these problems of Chu and Tsao's method, and then propose a revised method which can avoid these problems for ranking fuzzy numbers. Since the revised method is based on the Chu and Tsao's method, it is easy to rank fuzzy numbers in a way similar to the original method. (C) 2007 Elsevier Ltd. All rights reserved.
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