Extend a ranking method of trapezoidal fuzzy numbers to all fuzzy numbers by a weighting functions


  • Abolfazl Saiedifar Faculty of Science, Arak Branch, Islamic Azad University, Arak, Iran.

Recently Abbasbandy and Hajjari (Computers and Mathematics with Applications57 (2009) 413-419) have introduced a ranking method for the trapezoidalfuzzy numbers. This paper extends theirs method to all fuzzy numbers,which uses from a defuzzication of fuzzy numbers and a general weightingfunction. Extended method is interesting for ranking all fuzzy numbers, and itcan be applied for solving and optimizing engineering and economics problemsin a fuzzy environment.

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عنوان ژورنال:

دوره 11  شماره 2

صفحات  37- 56

تاریخ انتشار 2017-06-01

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