D- numbers and their variants
-24. Supplier selection using fuzzy AHP method and D-Numbers

Payam Shafi Salimi

Volume 1, Issue 1 , Winter 2020, , Pages 1-14

http://dx.doi.org/10.22105/jfea.2020.248437.1007

Abstract
  Success in supply begins with the right choice of suppliers and in the long run is directly related to how suppliers are managed, because suppliers have a significant impact on the success or failure of a company. Multi-criteria decisions are approaches that deal with ranking and selecting one or more ...  Read More

Plithogenic sets and their variants
-23. New Plithogenic sub cognitive maps approach with mediating effects of factors in COVID-19 diagnostic model

Nivetha Martin; R. Priya; Florentin Smarandache

Volume 2, Issue 1 , Winter 2021, , Pages 1-15

http://dx.doi.org/10.22105/jfea.2020.250164.1015

Abstract
  The escalation of COVID-19 curves is high and the researchers worldwide are working on diagnostic models, in the way this article proposes COVID-19 diagnostic model using Plithogenic cognitive maps. This paper introduces the new concept of Plithogenic sub cognitive maps including the mediating effects ...  Read More

Intuitionistic fuzzy sets and their variants
-22. 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

Neutrosophic sets and their variants
-21. A study of maximal and minimal ideals of n-refined neutrosophic rings

Mohammad Abobala

Volume 2, Issue 1 , Winter 2021, , Pages 16-22

http://dx.doi.org/10.22105/jfea.2021.270647.1072

Abstract
  If R is a ring, then Rn(I) is called a refined neutrosophic ring. Every AH-subset of Rn(I) has the form P = ∑ni=0 p i Ii= {a0+a1I+⋯+anIn: ai∈p i}, where p i are subsets of the classical ring R. The objective of this paper is to determine the necessary and sufficient conditions on p i which ...  Read More

Neutrosophic sets and their variants
-20. Neutrosophic soft matrices and its application in medical diagnosis

Mamoni Dhar

Volume 2, Issue 1 , Winter 2021, , Pages 23-32

http://dx.doi.org/10.22105/jfea.2021.246237.1000

Abstract
  In real life situations, there are many issues in which we face uncertainties, vagueness, complexities and unpredictability. Neutrosophic sets are a mathematical tool to address some issues which cannot be met using the existing methods. Neutrosophic soft matrices play a crucial role in handling indeterminant ...  Read More

Neutrosophic sets and their variants
-19. Application of transportation problem under pentagonal Neutrosophic environment

Sapan Kumar Das

Volume 1, Issue 1 , Winter 2020, , Pages 27-41

http://dx.doi.org/10.22105/jfea.2020.246633.1001

Abstract
  The paper talks about the pentagonal Neutrosophic sets and its operational law. The paper presents the cut of single valued pentagonal Neutrosophic numbers and additionally introduced the arithmetic operation of single-valued pentagonal Neutrosophic numbers. Here, we consider a transportation problem ...  Read More

Neutrosophic sets and their variants
-18. Neutrosophication of statistical data in a study to assess the knowledge, attitude and symptoms on reproductive tract infection among women

Somen Debnath

Volume 2, Issue 1 , Winter 2021, , Pages 33-40

http://dx.doi.org/10.22105/jfea.2021.272508.1073

Abstract
  Statistics mainly concerned with data that may be qualitative or quantitative. Earlier we have used the notion of statistics in the classical sense where we assign values that are crisp. But in reality, we find some areas where the crisp concept is not sufficient to solve the problem. So, it seems difficult ...  Read More

Type-2 fuzzy sets and their variants
-17. Interval type-2 fuzzy logic system for remote vital signs monitoring and shock level prediction

Uduak Umoh; Samuel Udoh; Abdultaofeek Abayomi; Alimot Abdulzeez

Volume 2, Issue 1 , Winter 2021, , Pages 41-68

http://dx.doi.org/10.22105/jfea.2021.255064.1028

Abstract
  Interval Type-2 Fuzzy Logic Systems (IT2 FLSs) have shown popularity, superiority, and more accuracy in performance in a number of applications in the last decade. This is due to its ability to cope with uncertainty and precisions adequately when compared with its type-1 counterpart. In this paper, an ...  Read More

Fuzzy sets and their variants
-16. Precise services and supply chain prioritization in manufacturing companies using cost analysis provided in a fuzzy environment

Alireza Marzband

Volume 1, Issue 1 , Winter 2020, , Pages 42-59

http://dx.doi.org/10.22105/jfea.2020.248187.1006

Abstract
  In recent years, management and, consequently, supply chain performance measurement, has attracted the attention of a large number of managers and researchers in the field of production and operations management. In parallel with the evolution of organizations from a single approach to a network and ...  Read More

Interval Arithmetic
-15. Using interval arithmetic for providing a MADM approach

Hossein Jafari; Mohammad Ehsanifar

Volume 1, Issue 1 , Winter 2020, , Pages 60-68

http://dx.doi.org/10.22105/jfea.2020.247946.1004

Abstract
  The VIKOR method was developed for Multi-Criteria Decision Making (MCDM). It determines the compromise ranking list and the compromise solution obtained with the initial weights. This method focuses on ranking and selecting from a set of alternatives in the presence of conflicting criteria. It introduces ...  Read More

Fuzzy sets and their variants
-14. Fuzzy logic in accounting and auditing

Mohsen Imeni

Volume 1, Issue 1 , Winter 2020, , Pages 69-75

http://dx.doi.org/10.22105/jfea.2020.246647.1002

Abstract
  Many areas of accounting have highly ambiguous due to undefined and inaccurate terms. Many ambiguities are generated by the human mind. In the field of accounting, these ambiguities lead to the creation of uncertain information. Many of the targets and concepts of accounting with binary classification ...  Read More

Fuzzy sets and their variants
-13. Evaluation and selection of supplier in supply chain with fuzzy analytical network process approach

Mohammad Ghasempoor Anaraki; Dmitriy S. Vladislav; Mahdi Karbasian; Natalja Osintsev; Victoria Nozick

Volume 2, Issue 1 , Winter 2021, , Pages 69-88

http://dx.doi.org/10.22105/jfea.2021.274734.1078

Abstract
  One of the most important issues concerning the designing a supply chain is selecting the supplier. Selecting proper suppliers is one of the most crucial activities of an organization towards the gradual improvement and a promotion in performance. This intricacy is because suppliers fulfil a part of ...  Read More

Other
-12. Efficiency study with undesirable inputs and outputs in DEA

Abbasali Monzeli; Behrouz Daneshian; Gasem Tohidi; Masud Sanei; Shabnam Razavian

Volume 1, Issue 1 , Winter 2020, , Pages 76-84

http://dx.doi.org/10.22105/jfea.2020.248018.1005

Abstract
  Data Envelopment Analysis (DEA) is one of the well-known methods for calculating efficiency, determining efficient boundaries and evaluating efficiency that is used in specific input and output conditions. Traditional models of DEA do not try to reduce undesirable outputs and increase undesirable inputs. ...  Read More

Neutrosophic sets and their variants
-11. Generalizations and alternatives of classical algebraic structures to neutroAlgebraic structures and antiAlgebraic structures

Florentin Smarandache

Volume 1, Issue 2 , Spring 2020, , Pages 85-87

http://dx.doi.org/10.22105/jfea.2020.248816.1008

Abstract
  In this paper we present the development from paradoxism to neutrosophy, which gave birth to neutrosophic set and logic and especially to NeutroAlgebraic Structures (or NeutroAlgebras) and AntiAlgebraic Structures (or AntiAlgebras) that are generalizations and alternatives of the classical algebraic ...  Read More

Fuzzy sets and their variants
-10. Analyzing the barriers of organizational transformation by using fuzzy SWARA

Iman Ghasemian Sahebi; Alireza Arab; Seyed Pendar Toufighi

Volume 1, Issue 2 , Spring 2020, , Pages 88-103

http://dx.doi.org/10.22105/jfea.2020.249191.1010

Abstract
  The crucial role of bureaucracy in the economic, political, socio-cultural and political structures, and its impact in achieving the goals of organization is so important that in order to achieve the development, change directions consists of purifying and modernization of the administrative system in ...  Read More

Fuzzy sets and their variants
-9. Prediction of Pakistan super league-2020 using TOPSIS and fuzzy TOPSIS methods

Muhammad Naveed Jafar; Faizullah Khan; Amir Naveed

Volume 1, Issue 2 , Spring 2020, , Pages 104-114

http://dx.doi.org/10.22105/jfea.2020.249363.1011

Abstract
  We lived in uncertain word and prediction in this uncertain word is a major issue. Prediction in cricket is very complex because there are many factors which are effecting on results. Weather, pitch, Conditions, Home grounds are some of these factors. In this article it is aimed to predict the results ...  Read More

Fuzzy sets and their variants
-8. Application of fuzzy logic in portfolio management: evidence from Iranian researches

Meysam Kaviani; Seyed Fakhreddin Fakhrehosseini

Volume 1, Issue 2 , Spring 2020, , Pages 115-118

http://dx.doi.org/10.22105/jfea.2020.249372.1012

Abstract
  Over the past decades, financial researchers have proposed different methods in portfolio selection, so that, Markwotiz [1] introduced risk and return criteria for a portfolio selection. Since it is difficult how to select an adequate stock portfolio, fuzzy models have been able to help researchers by ...  Read More

Soft sets and their variants
-7. A new decision making approach for winning strategy based on muti soft set logic

Renukadevi Vellapandi; Sangeetha Gunasekaran

Volume 1, Issue 2 , Spring 2020, , Pages 119-129

http://dx.doi.org/10.22105/jfea.2020.249373.1013

Abstract
  We introduce a new concept of certainty and coverage of a parameter of the soft set and present a new decision making approach for the soft set over the universe using the certainty of a parameter. Also, we point out the drawbacks of the reduct definition by pointing out the delusion of Proposition 14 ...  Read More

Intuitionistic fuzzy sets and their variants
-6. 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
-5. 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

Picture fuzzy sets and their variants
-4. The picture fuzzy distance measure in controlling network power consumption

Ngan Thi Roan; Salvador Coll; Marina Alonso; Juan Miguel Martínez Rubio; Pedro López; Fran Andujar; Son Hoang Le; Manh Van Vu; Florentin Smarandache

Volume 1, Issue 3 , Summer 2020, , Pages 148-168

http://dx.doi.org/10.22105/jfea.2020.249183.1009

Abstract
  In order to solve the complex decision-making problems, there are many approaches and systems based on the fuzzy theory were proposed. In 1998, Smarandache introduced the concept of single-valued neutrosophic set as a complete development of fuzzy theory. In this paper, we research on the distance measure ...  Read More

Neutrosophic sets and their variants
-3. Some remarks on neutro-fine topology

Veerappan Chinnadurai; Mayandi Pandaram Sindhu

Volume 1, Issue 3 , Summer 2020, , Pages 169-186

http://dx.doi.org/10.22105/jfea.2020.251783.1020

Abstract
  The neutro-fine topological space is a space that contains a combination of neutrosophic and fine sets. In this study, the various types of open sets such as generalized open and semi-open sets are defined in such space. The concept of interior and closure on semi-open sets are defined and some of their ...  Read More

Fuzzy sets and their variants
-2. An overview of portfolio optimization using fuzzy data envelopment analysis models

Mehrdad Rasoulzadeh; Mohammad Fallah

Volume 1, Issue 3 , Summer 2020, , Pages 187-197

http://dx.doi.org/10.22105/jfea.2020.255034.1027

Abstract
  A combination of projects, assets, programs, and other components put together in a set is called a portfolio. Arranging these components helps to facilitate the efficient management of the set and subsequently leads to achieving the strategic goals. Generally, the components of the portfolio are quantifiable ...  Read More

Fuzzy sets and their variants
-1. Assessment and linear programming under fuzzy conditions

Michael Voskoglou

Volume 1, Issue 3 , Summer 2020, , Pages 198-216

http://dx.doi.org/10.22105/jfea.2020.253436.1024

Abstract
  The present work focuses on two directions. First, a new fuzzy method using triangular / trapezoidal fuzzy numbers as tools is developed for evaluating a group’s mean performance, when qualitative grades instead of numerical scores are used for assessing its members’ individual performance. ...  Read More

Type-2 fuzzy sets and their variants
0. Using interval type-2 fuzzy logic to analyze Igbo emotion words

Uduak Umoh; Imo Eyoh; Etebong Isong; Anietie Ekong; Salvation Peter

Volume 1, Issue 3 , Summer 2020, , Pages 217-240

http://dx.doi.org/10.22105/jfea.2020.251544.1021

Abstract
  Several attempts had been made to analyze emotion words in the fields of linguistics, psychology and sociology; with the advent of computers, the analyses of these words have taken a different dimension. Unfortunately, limited attempts have so far been made to using interval type-2 fuzzy logic (IT2FL) ...  Read More