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 14
Number of papers 105
Article view 72,972
PDF download 42,620
View per article 694.97
PDF download per article 405.9
Acceptance rate 35%
Number of indexing databases 12
Number of reviewers



No. of citations (Scopus) 407
Scopus h-index  10
No. of citations (WOS) 257
No. of citations (Google Scholar) 684
 Google Scholar h-index 13










The Journal of Fuzzy Extension and Applications (JFEA) is an international, interdisciplinary, open-access journal that has been fully refereed and free of charge since 2020. It provides a platform for original research articles on the theory, design, and applications of fuzzy sets and their extensions, such as Intuitionistic, Pythagorean, Picture, and Hesitant fuzzy sets, as well as Neutrosophic, Plithogenic, and Hypersoft sets, among others. JFEA aims to promote the advances in developing and practicing fuzzy sets and their generalization in various fields, including foundations, mathematics, artificial intelligence, finance, management, economics, uncertainty and indeterminacy modeling, information systems, soft computing, and more. The journal's scope involves fuzzy set extensions and applications in every branch of science and technology. JFEA is committed to following the executive regulations of the COPE. Additionally, JFEA has a memorandum of understanding with the Neutrosophic Science International Association (NSIA). See more details                                        

Additional information

ISO abbreviation: J. Fuzzy. Ext. Appl
Frequency: Quarterly
Language: English
Review process: Double-blind
Plagiarism screening: iThenticate
Open access: Yes
Article processing Charge: No
Copyright: CC-BY 4.0
Acceptance rate: 35%
Average time to first decision: 4 Days
Review time (Approximately): 72 Days


Research Paper Fuzzy sets and their variants
On algebraic aspects of η-fuzzy subgroups

Muhammad Waseem Asghar; Khushdil Ahmad

Volume 4, Issue 2 , June 2023, Pages 65-80


  In this paper, we define the term " 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 the η-fuzzy normal subgroup and the quotient group with respect  to the ...  Read More

Research Paper Cubic sets and their variants
A cubic set discussed in incline algebraic sub–structure

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

Volume 4, Issue 2 , June 2023, Pages 81-91


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

Research Paper Intuitionistic fuzzy sets and their variants
Intuitionistic fuzzy complex subgroups with respect to norms (T,S)

Rasul Rasuli

Volume 4, Issue 2 , June 2023, Pages 92-114


  In our work in this paper, we define intuitionistic fuzzy complex subgroups with respect to t-norm T and s-norm S and investigate some properties of them in detail. Next, we obtain some results about them and give some relationships between them. Later, we introduce the inverse, composition, intersection ...  Read More

Research Paper Picture fuzzy sets and their variants
Picture fuzzy semi-prime ideals

Amal Kumar Adak; Manish Kumar Gunjan; Niwan Kumar Agarwal

Volume 4, Issue 2 , June 2023, Pages 115-124


  Picture Fuzzy Sets (PFSs) are expanded to include Intuitionistic Fuzzy Sets (IFSs), with the extra advantage of avoiding underlying limitations. PFS 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 Fermatean 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

Volume 4, Issue 2 , June 2023, Pages 125-135


  This paper aims to study Pythagorean and Fermatean Fuzzy Subgroups (FFSG)  in the context of -norm and  -conorm functions. The paper examines the extensions of fuzzy subgroups, specifically "Pythagorean Fuzzy Subgroups (PFSG)" and "FFSG", along with their properties. In the existing literature ...  Read More

Research Paper Neutrosophic sets and their variants
On refined neutrosophic finite p-group

Sunday Adesina Adebisi; Florentin Smarandache

Volume 4, Issue 2 , June 2023, Pages 136-140


  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 neutrosophic homomorphism. Moreover, suppose that X1 = X(G (I)) is the neutrosophic group of inner ...  Read More

Research Paper Neutrosophic sets and their variants
n-Cylindrical fuzzy neutrosophic topological spaces

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

Volume 4, Issue 2 , June 2023, Pages 141-147


  The objective 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 introduce n-Cylindrical Fuzzy Neutrosophic Topological Spaces (n-CyFNTS), n-Cylindrical Fuzzy ...  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
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

Fuzzy sets and their variants
Evaluation of key impression of resilient supply chain based on artificial intelligence of things (AIoT)

Alireza Aliahmadi; Hamed Nozari; Javid Ghahremani-Nahr; Agnieszka Szmelter-Jarosz

Volume 3, Issue 3 , July 2022, , Pages 201-211


  In recent years, the high complexity of the business environment, dynamism and environmental change, uncertainty and concepts such as globalization and increasing competition of organizations in the national and international arena have caused many changes in the equations governing the supply chain. ...  Read More

Complex Fuzzy Sets and their variants
An efficient parallel greedy algorithm for fuzzy hybrid flow shop scheduling with setup time and lot size: a case study in apparel process

Orhan Engin; Meral İşler

Volume 3, Issue 3 , July 2022, , Pages 249-262


  This paper deals with the Fuzzy Hybrid Flow Shop (FHFS) scheduling inspired by a real apparel process. A Parallel Greedy (PG) algorithm is proposed to solve the FHFS problems with Setup Time (ST) and Lot Size (LS). The fuzzy model is used to define the uncertain setup and Processing Time (PT) and Due ...  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

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 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 Fuzzy sets and their variants
A new approach to MCDM problems by fuzzy binary soft sets

P G Patil; Vyshakha Elluru; S Shivashankar

Articles in Press, Accepted Manuscript, Available Online from 15 July 2023


  Many real-world problems faces strenuous in making decisions. Many theories have evoloved for dealing with such problems. The present paper deals with fuzzy binary soft sets and their applications to multi-criteria decision-making (MCDM) problems. Then introduced expanded matrix representation of fuzzy ...  Read More

Research Paper Artificial Intelligence
Fire Extinguishers Based on Acoustic Oscillations in Airflow Using Fuzzy Classification

Mahmut Dirik

Articles in Press, Accepted Manuscript, Available Online from 15 July 2023


  Fire, a natural calamity, poses a severe threat to human existence and is typically combated utilizing traditional measures. However, due to the limitations and potential environmental damage associated with these conventional strategies, there is a compelling need to devise innovative firefighting techniques. ...  Read More

Research Paper Complex Fuzzy Sets and their variants

Rasul Rasuli

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


  In this paper, we define the conceps of complex fuzzy Lie subalgebras and complexfuzzy ideals of Lie algebras with respect to t-norms and investigate some of characteristics andrelationship between them. Next, we introduce the concepos of quotient subalgebras, intersection, sum and direct product of ...  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
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 , June 2020, , Pages 122-132


  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

Picture fuzzy sets and their variants
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 , September 2020, , Pages 139-158


  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

Fuzzy sets and their variants
Application of fuzzy algebraic model to statistical analysis of neuro-psychopathology data

Semiu Ayinla Alayande; Ezekiel Akande; Amanze Egere

Volume 2, Issue 2 , June 2021, , Pages 156-162


  The purpose of this paper is to describe and present applications of fuzzy logic in analysis of certain neuro-psychopathological symptoms. These symptoms have been linked to conditions relating to occupational hazards. Our method of data analysis which is based on Hamacher operation on picture fuzzy ...  Read More

Type-2 fuzzy sets and their variants
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 , September 2020, , Pages 206-226


  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

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