سال انتشار: ۱۳۹۰
محل انتشار: یازدهمین کنفرانس سیستم های فازی ایران
تعداد صفحات: ۸
Mojtaba Ghanbari – Department of Mathematics, Islamic Azad University, Aliabad Katoul Branch, Aliabad Katoul, Iran
Rahele Nuraei – 2Department of Mathematics, Science and Research Branch, Islamic Azad University, Tehran, Iran
Sign distance method is a well-known method for ranking of fuzzy numbers. However, in this paper, we show that the sign distance method has some drawbacks, i.e., the result is not consistent with human intuition for special cases and this method can not always logically infer ranking order of the images of the fuzzy numbers. To overcome these problems, we introduce a modi¯cation of the sign distance method. Also, we present several properties for modi¯ed sign distance method while the original method has not some of them.