Pythagorean Fuzzy Sets
摘要
After introducing the fuzzy sets by (Zadeh in Inf. Control. 8:338–353, [1]), this was used by many researchers to represent the uncertain nature of the optimization problems (Garg et al. in Complex Intel. Syst. 7:807–822, [2]). Therefore, some extensions of the classical fuzzy sets and numbers have been introduced in the literature. As of important extensions of fuzzy sets, Pythagorean fuzzy sets can be mentioned which was introduced by (Yager in 2013 Joint IFSA World Congress and NAFIPS Annual Meeting (IFSA/NAFIPS), pp. 57–61, [3]).