Results 1 to 10 of about 2,359 (257)

A New Multi Attribute Decision Making Method Based on the T-Spherical Hesitant Fuzzy Sets

IEEE Access, 2021
In this paper, we first introduce the concept of T-spherical hesitant fuzzy set (T-SHFS) on the basis of the combination of T-spherical fuzzy sets (T-SFSs) and hesitant fuzzy sets (HFSs).
Ashraf Al-Quran
doaj   +3 more sources

Applications of Spherical Fuzzy Sets in Ternary Semigroups

International Journal of Analysis and Applications, 2022
In this paper, we introduce the notions of spherical fuzzy ternary subsemigroups and spherical fuzzy ideals in ternary semigroups by using the concepts of ternary subsemigroups and ideals in ternary semigroups. We investigate their properties.
Wasitthirawat Krailoet, Ronnason Chinram, Montakarn Petapirak, Aiyared Iampan   +3 more
doaj   +2 more sources

Spherical fuzzy hypergraph in decision making [PDF]

Scientific Reports
This study presents the Spherical Fuzzy Hypergraph (SFHG), an advancement that integrates the principles of fuzzy theory with hypergraph models, and improving decision-making processes.
Tarasankar Pramanik, Rupkumar Mahapatra, Tofigh Allahviranloo, Leo Mrsic, Antonios Kalampakas, Sovan Samanta   +5 more
doaj   +2 more sources

TOPSIS Method Based on Complex Spherical Fuzzy Sets with Bonferroni Mean Operators

Mathematics, 2020
The theory of complex spherical fuzzy sets (CSFSs) is a mixture of two theories, i.e., complex fuzzy sets (CFSs) and spherical fuzzy sets (SFSs), to cope with uncertain and unreliable information in realistic decision-making situations.
Zeeshan Ali, Tahir Mahmood, Miin-Shen Yang   +2 more
doaj   +3 more sources

New aggregation functions for spherical fuzzy sets and the spherical fuzzy distance within the MULTIMOORA method with applications

Autonomous Intelligent Systems, 2022
This article develops a novel approach for multi-objective optimization on the basis of ratio analysis plus the full multiplicative form (MULTIMOORA) using spherical fuzzy sets (SFSs) to obtain proper evaluations.
Iman Mohamad Sharaf
doaj   +2 more sources

Similarity Measures for T-Spherical Fuzzy Sets with Applications in Pattern Recognition [PDF]

Symmetry, 2018
In this manuscript, two generalizations of fuzzy sets, intuitionistic fuzzy sets and picture fuzzy sets, known as spherical fuzzy sets and T-spherical fuzzy sets, are discussed and a numerical and geometrical comparison among them is established. A T-spherical fuzzy set can model phenomena like voting using four characteristic functions denoting the ...
Kifayat Ullah, Tahir Mahmood, Naeem Jan   +2 more
exaly   +4 more sources

A New Entropy Measure and COPRAS Method for Spherical Fuzzy Sets

IEEE Access
One of the best ways to handle the ambiguity and unpredictable nature of decision-making is through fuzzy logic, and one of the most recent developments in this area is the concept of spherical fuzzy sets.
Abdul Haseeb Ganie, Debashis Dutta, Sunny Kumar Sharma   +2 more
doaj   +3 more sources

A novel fuzzy TOPSIS method using emerging interval-valued spherical fuzzy sets

Engineering Applications of Artificial Intelligence, 2019
Abstract All the extensions of ordinary fuzzy sets with three-dimensional membership functions such as intuitionistic fuzzy sets, second type intuitionistic fuzzy sets (or Pythagorean fuzzy sets) and neutrosophic sets aim at defining the judgments of decision makers/ experts with a more detailed description. As a new extension of intuitionistic fuzzy
Cengiz Kahraman
exaly   +4 more sources

Similarity Measures of Spherical Fuzzy Sets Based on Cosine Function and Their Applications [PDF]

IEEE Access, 2019
In this paper, we defined ten similarity measures between spherical fuzzy sets (SFSs) based on the cosine function by considering the degree of positive-membership, degree of neutral-membership, degree of non-membership and degree of refusual-membership in SFSs. Then, we applied these similarity measures and weighted similarity measures between SFSs to
Jie Wang, Guiwu Wei, Jiang Wu
exaly   +4 more sources

Some novel correlation coefficients of spherical fuzzy sets with their application in pattern recognition [PDF]

Songklanakarin Journal of Science and Technology (SJST), 2022
A spherical fuzzy set is a generalization of picture fuzzy sets, intuitionistic fuzzy sets, and fuzzy sets in which the square sum of the membership, non-membership, and neutrality values is at most one. The correlation coefficient is a crucial tool in
Abdul Haseeb Ganie
doaj   +1 more source