Volume 3 (2022)
Volume 2 (2021)
Volume 1 (2020)

 Facts and Figures

 Journal of Fuzzy Extension and Applications

 ISO Abbreviation:  J. Fuzzy. Ext. Appl

Number of Volumes 4
Number of Issues 13
Number of Papers 101
Article View 68,534
PDF Download 37,469
View Per Article 678.55
PDF Download Per Article 370.98
Acceptance Rate 36%
Number of Indexing Databases 18
Number of Reviewers



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Islamic World Science Citation Center (ISC)












Latest News

We are pleased to announce the launch of the "International Society of Fuzzy Set Extensions and Applications" (ISFSEA). Therefore, we would like invite you to visit and join ISFSEA     [With free of any charges ]

Journal of Fuzzy Extension & Applications (JFEA)  is an international scholarly open access,  interdisciplinary,  fully refereed, and quarterly free of charge journal as a non-commercial publication. The publication start year of JFEA is 2020 and affiliated with Ayandegan Institute of Higher Education. The JFEA Journal has been indexed in the well-known world databases mainly; Directory of Open Access Journals (DOAJ), Ministry of Science, Research and Technology (MSRT), China Academic Journals (CNKI), WorldCat, Islamic World Science Citation Center (ISC), EBSCO, EuroPubGoogle ScholarUlrichsweb, and Scientific Information Database (SID). The JFEA has partnered with Publons, the world’s leading peer review platform, to officially recognize your peer review contributions. For more information about Publons or to sign up, visit our webpage at Publons. Moreover, JFEA utilizes "Plagiarism Detection Software (iThenticate)" for checking the originality of submitted papers in the reviewing process. This journal respects the ethical rules in publishing and is subject to the rules of the Ethics Committee" for Publication (COPE) and committed to follow the executive regulations of the Law on Prevention and Combating Fraud in Scientific  Works.

This journal aims to provide a forum for original research articles in the theory, design, and applications of Fuzzy sets and their generalization such as “Intuitionistic fuzzy sets”, “Pythagorean fuzzy sets”, “Picture fuzzy sets”, “Hesitant fuzzy sets”, ”Neutrosophic sets”, “Plithogenic set”, ”Hypersoft set”, etc. The goal of JFEA is to help promote the advances in the development and practice of fuzzy sets and their generalization in the areas of foundations, mathematics, artificial intelligence, finance, management, economic, uncertainty and indeterminacy modeling, information systems, soft computing,  and others. The scope of the journal involves fuzzy sets extensions and applications in every branch of science and technology. For more information about JFEA, see (About Journal).


Journal Citation Based on SCOPUS(Export Date: 17 May 2023): 257 (h- index: 8)


It should be noted that Journal of Fuzzy Extension & Applications (JFEA) has  a Memorandum  Of Understanding (MOU) with Neutrosophic Science International Association (NSIA).
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Research Paper Fuzzy sets and their variants
The nilpotent ( p-group) of (D25 X C2n) for m > 5

Sunday Adesina Adebisi; Mike Ogiugo; Michael Enioluwafe

Volume 4, Issue 1 , March 2023, Pages 1-7


  Abstract The term fuzzy logic is generic as it can be used to describe the likes of fuzzy arithmetic, fuzzy mathematical programming, fuzzy topology, fuzzy graph theory ad fuzzy data analysis which are customarily called fuzzy set theory. The aspect of pure Mathematics has undergone a lot of dynamic ...  Read More

Research Paper Boolean-valued fuzzy sets and their variants
Global domination in Fuzzy graphs using Strong arcs

O. T Manjusha

Volume 4, Issue 1 , March 2023, Pages 8-17


  Sambathkumar introduces the notion of global domination in graphs. According to him, a dominating set S of G is a global dominating set of G if S is also a dominating set of the complement of G.Nagoorgani and Jahir Hussain introduced the concept of global domination infuzzy graphs using effective arcs. ...  Read More

Research Paper Fuzzy multisets and their variants
Fuzzy metric topology space and manifold

Mahdi Mollaei

Volume 4, Issue 1 , March 2023, Pages 18-27


  This paper, considers the fuzzy topological subsets, fuzzy topological spaces and introduces a novel concept of fuzzy Hausdorff space and fuzzy manifold space in this regards. Based on these concepts, we present a concept of fuzzy metric Hausdorff spaces and fuzzy metric manifold spaces via the notations ...  Read More

Review Paper Pythagorean fuzzy sets and their variants
Spherical Distance Measurement Method for Solving MCDM Problems under Pythagorean Fuzzy Environment

Amal Kumar Adak; Gaurikant Kumar

Volume 4, Issue 1 , March 2023, Pages 28-39


  Multiple criteria decision analysis (MCDA) has been widelyinvestigated and successfully applied to many fields, owingto its great capability of modeling the process of actualdecision-making problems and establishing proper evaluationand assessment mechanisms. With the developmentof management and economics, ...  Read More

Research Paper Neutrosophic sets and their variants
On some related concepts n-cylindrical fuzzy neutrosophic topological spaces

Sarannya Kumari R; Sunny Joseph Kalayathankal; Mathews M George; Florentin Smarandache

Volume 4, Issue 1 , March 2023, Pages 40-51


  This work is the continuation of our recent work entitled “n-Cylindrical Fuzzy Neutrosophic Topological Spaces (n-CyFNTS). In this paper, we present n-Cylindrical fuzzy neutrosophic (n-CyFN) continuous functions and related results. A characterization on n-CyFN continuous functions is proposed ...  Read More

Review Paper Plithogenic sets and their variants
An Overview of Plithogenic Set and Symbolic Plithogenic Algebraic Structures

Florentin Smarandache

Volume 4, Issue 1 , March 2023, Pages 52-59


  This paper is devoted to Plithogeny, Plithogenic Set, and its extensions. These concepts are branches of uncertainty and indeterminacy instruments of practical and theoretical interest. Starting with some examples, we proceed towards general structures. Then we present definitions and applications of ...  Read More

Research Paper Fuzzy sets and their variants
A note on somewhat fuzzy continuity

Zanyar A. Ameen

Volume 4, Issue 1 , March 2023, Pages 60-64


  Thangaraj and Balasubramanian introduced the so-called somewhat fuzzy semicontinuous and somewhat fuzzy semiopen functions. Two years later, the same authors defined two other types of functions called somewhat fuzzy continuous and somewhat fuzzy open without indicating connections between them. At first ...  Read More

Artificial Intelligence
Age and gender classification from facial features and object detection with machine learning

Mehmet Karahan; Furkan Lacinkaya; Kaan Erdonmez; Eren Deniz Eminagaoglu; Cosku Kasnakoglu

Volume 3, Issue 3 , July 2022, , Pages 219-230


  In recent years, development of the machine learning algorithms has led to the creation of intelligent surveillance systems. Thanks to the machine learning, it is possible to perform intelligent surveillance by recognizing people's facial features, classifying their age and gender, and detecting objects ...  Read More

Fuzzy sets and their variants
Prediction of human behavior with TOPSIS

Taraneh Javanbakht; Shivanjan Chakravorty

Volume 3, Issue 2 , June 2022, , Pages 109-125


  The present paper proposes a new application of the prediction of human behavior using TOPSIS as an appropriate tool for data optimization. Our hypothesis was that the analysis of the candidates with this method was influenced by the change of their behavior. We found that the behavior change could occur ...  Read More

Fuzzy sets and their variants
Basic fuzzy arithmetic operations using α–cut for the gaussian membership function

Leonce Leandry; Innocent Sosoma; David Koloseni

Volume 3, Issue 4 , October 2022, , Pages 337-348


  Currently fuzzy set theory has a wide range to model real life problems with incomplete or vague information which perfectly suits the reality and its application is theatrically increasing. This work explored the basic fuzzy operations with the Gaussian Membership using the α-cut method. As it ...  Read More

Fuzzy sets and their variants
Using a combined fuzzy-AHP and topsis decision model for selecting the best firewall alternative

Ceren Cubukcu; Cem Cantekin

Volume 3, Issue 3 , July 2022, , Pages 192-200


  Covid-19 pandemic forced all the world to make significant changes in their daily routines. As a result, internet and digital technologies started to be used more actively by individuals and businesses. Due to this digitalization, everyone is more open to digital threats. In order to provide the security ...  Read More

Z-numbers and their variants
Intuitive multiple centroid defuzzification of intuitionistic Z-numbers

Nik Muhammad Farhan Hakim Nik Badrul Alam; Ku Muhammad Naim Ku Khalif; Nor Izzati Jaini; Ahmad Syafadhli Abu Bakar; Lazim Abdullah

Volume 3, Issue 2 , June 2022, , Pages 126-139


  In fuzzy decision-making, incomplete information always leads to uncertain and partially reliable judgements. The emergence of fuzzy set theory helps decision-makers in handling uncertainty and vagueness when making judgements. Intuitionistic Fuzzy Numbers (IFN) measure the degree of uncertainty better ...  Read More

Research Paper Fuzzy sets and their variants
Providing a Hybrid Fuzzy Approach to Explain Managers’ Mental Paradigms to Prioritize Employee Needs

Abolfazl Rezaei; Mohammad Hemati

Articles in Press, Accepted Manuscript, Available Online from 01 November 2022


  Today, most manufacturing and service companies adopt a customer-oriented approach to take into account employee needs and expectations as a strategic principle for sustainability and success in a competitive market. Meanwhile, Sengeh argues that “many of the best ideas and strategies will not ...  Read More

Research Paper Neutrosophic sets and their variants
On the Introduction to neutrosophic statistics and neutrosophic algebraic structures ( involving the fuzziness, similarity and the symmetry properties on the neutrosophic interval probability) (1)

SUNDAY ADESINA ADEBISI; Florentin Smarandache

Articles in Press, Accepted Manuscript, Available Online from 10 December 2022


  Abstract The neutrosophic interval statistical number (NISN) has been known to be very useful in expressing the interval values under indeterminate environments. One of the essential and so important useful as tools for measuring the degree of similarity between sets of given objects is the similarity ...  Read More

Research Paper Neutrosophic sets and their variants
On Refined Neutrosophic Finite p-Group

Sunday Adesina Adebisi; Florentin Smarandache

Articles in Press, Accepted Manuscript, Available Online from 17 December 2022


  Abstract. The neutrosophic automorphisms of a neutrosophic groups G(I), denoted by Aut(G(I)) is a neu-trosophic group under the usual mapping composition. It is a permutation of G(I) which is also a neutrosophichomomorphism. Moreover, suppose that X1 = X(G(I)) is the neutrosophic group of Inner neutrosophic ...  Read More

Research Paper Fuzzy sets and their variants
On Algebraic Aspects of \eta-Fuzzy Subgroups

Khushdil Ahmad; Muhammad Waseem Asghar

Articles in Press, Accepted Manuscript, Available Online from 08 February 2023


  In this paper, we define the term of η-fuzzy subgroup and show that every fuzzy subgroup is a η-fuzzy subgroup. We define some of the algebraic properties of the concept of η-fuzzy cosets. Furthermore, we initiate the study of η-fuzzy normal subgroup and quotient group with respect to the η-fuzzy ...  Read More

Research Paper Neutrosophic sets and their variants
n-Cylindrical Fuzzy Neutrosophic Topological Spaces

Sarannya Kumari R

Articles in Press, Accepted Manuscript, Available Online from 04 May 2023


  Many advances have been made in the field of research since Chang created fuzzy topological space. The goal of this study is to incorporate topological space into the realm of n- cylindrical fuzzy neutrosophic sets (n-CyFNS), which are the most novel type of fuzzy neutrosophic sets. In this paper we ...  Read More

Review Paper Fuzzy sets and their variants

Sivasankar S

Articles in Press, Accepted Manuscript, Available Online from 04 May 2023


  In communication networks, strong connectivity between nodes are critical. The failure of strong connectivity between nodes may jeopardize the network’s stability. In fuzzy graphs, various dominating sets using strong edges are identified to avoid network stability. In this paper, the concept of ...  Read More

Research Paper Picture fuzzy sets and their variants
Picture Fuzzy Semi-prime Ideals

Amal Kumar Adak; Manish Kumar Gunjan; N K Agarwal

Articles in Press, Accepted Manuscript, Available Online from 20 May 2023


  Picture fuzzy sets are expanded to include intuitionistic fuzzy sets, with the extra advantage of avoiding underlying limitations. Picture fuzzy sets based models may be adequate in situations when we face opinions involving more answer of types: yes, abstain and no. In this paper, the concepts of semi-prime ...  Read More

Research Paper Type-2 fuzzy sets and their variants
Interval Type-2 Fuzzy Logic System for Early Software Reliability Prediction

Ini John Umoeka; Veronica Neekay Akwukwuma

Articles in Press, Accepted Manuscript, Available Online from 30 May 2023


  The reliability of software product is seen as critical quality factor that cannot be overemphasized. Since real world application is loaded with high amount of uncertainty, such as applicable to software reliability, there should be a technique of dealing with such uncertainty. This paper presents a ...  Read More

Research Paper Cubic sets and their variants
A Cubic Set Discussed In Incline Algebraic Sub – Structure

Surya M; Muralikrishna Prakasam; Edalatpanah Seyyed Ahmad; Ramin Goudarzi Karim

Articles in Press, Accepted Manuscript, Available Online from 30 May 2023


  An effective and flexible method for encoding ambiguous data is the use of cubic sets. The concept of Incline algebraic sub-structure is considered and is interlinked with the notation of Cubic set to define cubic subincline. With relevant results, the sense of cubic subincline of algebra is established. ...  Read More

Research Paper L-fuzzy sets and their variants
Pythagorean and Fermatean Fuzzy Sub-Group Redefined in context of T ̃-Norm and S ̃-Conorm

Vishnu Narayan Mishra; Tarun Kumar; Mukesh Kumar Sharma; Laxmi Rathour

Articles in Press, Accepted Manuscript, Available Online from 03 June 2023


  This paper aims to study the Pythagorean and Fermatean fuzzy subgroups in context of T ̃-normand S ̃-conormfunctions.In this paper, we studied the extensions of fuzzy subgroups named “Pythagorean fuzzy subgroups” and “Fermatean fuzzy subgroups”, along with their properties.As ...  Read More

Neutrosophic sets and their variants
A neutrosophic Student’s t –type of statistic for AR (1) random processes

Athanase Polymenis

Volume 2, Issue 4 , December 2021, , Pages 388-393


  Neutrosophic statistics are used when one is dealing with imprecise and indeterminate data or parameters. In the present paper we propose a method for performing a neutrosophic Student’s t –type of statistical test that concerns the population mean when data arise from an autoregressive process ...  Read More

Plithogenic sets and their variants
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 , March 2021, , Pages 1-15


  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

Ordered structures and their variants
New characterization theorems of the mp-quantales

George Georgescu

Volume 2, Issue 2 , June 2021, , Pages 106-119


  The mp-quantales were introduced in a previous paper as an abstraction of the lattices of ideals in mp-rings and the lattices of ideals in conormal lattices. Several properties of m-rings and conormal lattices were generalized to mp-quantales. In this paper we shall prove new characterization theorems ...  Read More

Intuitionistic fuzzy sets and their variants
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 , December 2020, , Pages 279-292


  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

Neutrosophic sets and their variants
K-algebras on quadripartitioned single valued neutrosophic sets

Mohanasundari Mohan; Mohana Krishnaswamy

Volume 1, Issue 4 , December 2020, , Pages 325-339


  Abstract Quadripartitioned single valued neutrosophic (QSVN) set is a powerful structure where we have four components Truth-T, Falsity-F, Unknown-U and Contradiction-C. And also it generalizes the concept of fuzzy, initutionstic and single valued neutrosophic set. In this paper we have proposed the ...  Read More



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Digital Object Identifier (DOI)
DOI prefix:10.22105

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