Soft set theory, initially introduced through the seminal article “Soft set theory—First results”
in 1999, has gained considerable attention in the field of mathematical modeling and …

The recent decade has arisen a significant issue in the energy sector, which is how to select
proper sources of renewable energy as a sustainable substitution for conventional forms of …

Pythagorean fuzzy set (PFS), originally proposed by Yager, is more capable than
intuitionistic fuzzy set (IFS) to handle vagueness in the real world. The main purpose of this …

The q‐rung orthopair fuzzy set (q‐ROFS), originally developed by Yager, is more capable
than that of Pythagorean fuzzy set to deal uncertainty in real life. The main goal of this paper …

Decision‐making under uncertainty is consistently an essential fear and the most
challenging circle of exploration. To manage the uncertainty, the intuitionistic fuzzy set (IFS) …

1. Intuitionistic Fuzzy Sets Page 1 1. Intuitionistic Fuzzy Sets The intuitionistic fuzzy set (IFS)
theory is based on: • extensions of corresponding definitions of fuzzy set objects, and • definitions …

Abstract In 1993, Gau and Buehrer proposed the theory of vague sets as an extension of
fuzzy set theory. Vague sets are regarded as a special case of context-dependent fuzzy sets …

This book aims to be a comprehensive and accurate survey of state-of-art research on
intuitionistic fuzzy sets theory and could be considered a continuation and extension of the …

The axiom definition of distance measure between intuitionistic fuzzy sets (IFSs) is
introduced. Some distance measures are proposed and corresponding proofs are given …

Recently, Chen (Fuzzy Sets and Systems 74 (2)(1995) 217–223; IEEE Trans. Syst. Man and
Cybern., 27 (1)(1997) 153–158) proposed a set of methods for measuring the degree of …