Intuitionistic fuzzy sets and their variants
1. Some Results on Certain Properties of Intuitionistic Fuzzy Sets

Jaydip Bhattacharya

Articles in Press, Accepted Manuscript, Available Online from 22 August 2021

http://dx.doi.org/10.22105/jfea.2021.290202.1155

Abstract
  An operator is a special symbol for performing a specific function. Several operators like modal operators, topological operators, level operators, etc. have been defined over intuitionistic fuzzy sets. At the same time, so many operations were introduced and studied. The key objective of this paper ...  Read More

Intuitionistic fuzzy sets and their variants
2. On the prediction of Covid-19 time series: an intuitionistic fuzzy logic approach

Imo Eyo; Jeremiah Eyoh; Uduak Umoh

Volume 2, Issue 2 , Spring 2021, , Pages 171-190

http://dx.doi.org/10.22105/jfea.2021.263890.1070

Abstract
  This paper presents a time series analysis of a novel coronavirus, COVID-19, discovered in China in December 2019 using intuitionistic fuzzy logic system with neural network learning capability. Fuzzy logic systems are known to be universal approximation tools that can estimate a nonlinear function as ...  Read More

Intuitionistic fuzzy sets and their variants
3. 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 298-312

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
4. 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

Intuitionistic fuzzy sets and their variants
5. A new approach for ranking of intuitionistic fuzzy numbers

Suresh Mohan; Arun Prakash Kannusamy; Vengataasalam Samiappan

Volume 1, Issue 1 , Winter 2020, , Pages 15-26

http://dx.doi.org/10.22105/jfea.2020.247301.1003

Abstract
  The concept of an intuitionistic fuzzy number (I F N) is of importance for representing an ill-known quantity. Ranking fuzzy numbers plays a very important role in the decision process, data analysis and applications. The concept of an intuitionistic fuzzy number (IFN) is of importance for quantifying ...  Read More