Fuzzy sets and their variants
1. Fuzzy programming approach to Bi-level linear programming problems

Eshetu Dadi Gurmu; Tagay Takele Fikadu

Volume 1, Issue 4 , Autumn 2020, , Pages 268-290

http://dx.doi.org/10.22105/jfea.2020.262326.1069

Abstract
  In this study, we discussed a fuzzy programming approach to bi-level linear programming problems and their application. Bi-level linear programming is characterized as mathematical programming to solve decentralized problems with two decision-makers in the hierarchal organization. They become more important ...  Read More

Fuzzy sets and their variants
2. A study on fundamentals of refined intuitionistic fuzzy set with some properties

Atiqe Ur Rahman; Muhammad Rayees Ahmad; Muhammad Saeed; Muhammad Ahsan; Muhammad Arshad; Muhammad Ihsan

Volume 1, Issue 4 , Autumn 2020, , Pages 300-314

http://dx.doi.org/10.22105/jfea.2020.261946.1067

Abstract
  Zadeh conceptualized the theory of fuzzy set to provide a tool for the basis of the theory of possibility. Atanassov extended this theory with the introduction of intuitionistic fuzzy set. Smarandache introduced the concept of refined intuitionistic fuzzy set by further subdivision of membership and ...  Read More

Intuitionistic fuzzy sets and their variants
3. Medical diagnostic analysis on some selected patients based on modified Thao et al.’s correlation coefficient of intuitionistic fuzzy sets via an algorithmic approach

Paul Augustine Ejegwa; Idoko Charles Onyeke

Volume 1, Issue 2 , Spring 2020, , Pages 130-141

http://dx.doi.org/10.22105/jfea.2020.250108.1014

Abstract
  The concept of correlation coefficient of intuitionistic fuzzy sets is a reliable tool in information theory with numerous applications in diverse areas. Correlation coefficients of intuitionistic fuzzy sets have been studied through two-way approach by many researchers. This approach inappropriately ...  Read More

Fuzzy sets and their variants
4. Computer and fuzzy theory application: review in home appliances

Tim Chen; Ilnar Karimov; Jcy Chen; Alexandv Constantinovitc

Volume 1, Issue 2 , Spring 2020, , Pages 142-147

http://dx.doi.org/10.22105/jfea.2020.251719.1019

Abstract
  Clays have a tendency to this article first introduces the basic concepts of fuzzy theory, including comparisons between fuzzy sets and traditional explicit sets, fuzzy sets basic operations such as the membership function of the set and the colloquial variable, the intersection and union of the fuzzy ...  Read More