FUZZY ARITHMETIC OPERATIONS ON DIFFERENT FUZZY NUMBERS AND THEIR VARIOUS FUZZY DEFUZZIFICATION METHODS

This paper describes fuzzy numbers, fuzzy arithmetic operations and their defuzzification methods. First of all, we'll look into the fundamental concept of fuzzy numbers, and then the operations of fuzzy numbers. And also, we'll look into the various kinds of fuzzy numbers such as the triangular fuzzy number, trapezoidal fuzzy number and pentagonal fuzzy number. Then we'll also look into the various defuzzification approaches of the above fuzzy numbers in this paper. In this study is to identify the defuzzification formulas for various fuzzy numbers derived from research papers published over the past few years. This paper presents the results of fuzzy ranking applications used in fuzzy arithmetic operations very clearly and simply, as well as highlighting key points in the use of fuzzy numbers. This paper discusses the importance of pointing out the concepts of fuzzy arithmetic operations and their uses for fuzzy ranking methods