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A Survey on Spherical Fuzzy Sets and Clustering the Literature
2020In addition to the well-known fuzzy sets, a novel type of fuzzy sets called as spherical fuzzy set (SFS) is recently introduced in the literature. SFS is the generalized structure over existing structures of fuzzy sets (intuitionistic fuzzy sets, Pythagorean fuzzy sets, and neutrosophic sets) based on three dimensions (truth, falsehood, and ...
Eren Ozceylan +3 more
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Present Worth Analysis Using Spherical Fuzzy Sets
2021One of the important investment techniques is present worth analysis (PWA) in engineering economics. Investment values are specified by humans and these values are based on human thoughts. It is quite hard to specify them in crisp values. In that manner, fuzzy logic could be the better alternative to calculate vagueness.
Eda Boltürk, Sukran Seker
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Spherical fuzzy soft sets: theory and aggregation operator with its applications
2022The aim of this paper is to redefine the notion of spherical fuzzy soft sets as a more general concept to make them more functional for solving multi-criteria decision-making problems. We first define the set operations under the new spherical fuzzy soft set environment and obtain some fundamental properties of them.
Aygun, H., Guner, E.
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Complex T-Spherical Fuzzy N-Soft Sets
2021This research article broadens the literature by presenting a new model, namely, complex T-spherical fuzzy N-soft sets, which is capable to handle both aspects of two-dimensional information involved in the satisfaction, abstinence and dissatisfaction nature of human decisions.
Muhammad Akram, Maria Shabir
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Evaluating Spherical Gaussian Fuzzy Sets in Image Enhancement
2025 Fourteenth International Conference on Image Processing, Theory, Tools & Applications (IPTA)Fuzzification techniques play a pivotal role in enhancing image processing tasks by effectively modeling uncertainty and imprecision inherent in visual data. This study presents a new approach using image fuzzification and subsequent defuzzification. We define the image representation using its fuzzy components and perform the enhancement with cutting ...
PARLAK, İSMAİL BURAK +2 more
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Score and accuracy functions for different types of spherical fuzzy sets
Developments of Artificial Intelligence Technologies in Computation and Robotics, 2020Spherical fuzzy sets are the latest extension of the ordinary fuzzy sets, which are based on three independent parameters, namely membership degree, non-membership degree and hesitancy degree. The squared sum of these parameters must be equal or less than 1.
Otay, Irem +3 more
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Spherical fuzzy soft sets and its applications in decision-making problems
Journal of Intelligent & Fuzzy Systems, 2019In this paper, the definition of spherical fuzzy soft sets and some of its properties are introduced. Spherical fuzzy soft sets are a generalization of soft sets. Notably, we showed DeMorgan’s laws that are valid in spherical fuzzy soft set theory.
Fathima Perveen P. A. +3 more
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The cosine similarity measures of spherical fuzzy sets and their applications in decision making
Journal of Intelligent & Fuzzy Systems, 2019The novel concept of spherical fuzzy set consists of positive, neutral and negative membership grades which satisfy the conditions that the square sum of its membership grades is less than or equal to 1. In this paper, we investigate the family of novel similarity measures between spherical fuzzy sets based on cosine function by considering the ...
Muhammad Rafiq +4 more
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Spherical fuzzy sets and their applications in multi-attribute decision making problems
Journal of Intelligent & Fuzzy Systems, 2019The key objective of the present proposed work in this paper is introduced a new version of picture fuzzy set so called spherical fuzzy sets (SFS). spherical fuzzy set is a new extension of picture fuzzy sets and Pythagorean fuzzy sets. In spherical fuzzy sets, membership degrees are gratifying the condition 0 ⩽ P2 (x) + I2 (x) + N2 (x) ⩽1 instead of 0
Shahzaib Ashraf +4 more
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Evaluating Strategic Entry Decisions Using Spherical Fuzzy Sets
2020In today’s economy, companies have to constantly develop new strategies and have to choose whether to expand into new markets, stabilize in or exit from the existing markets. The entry in to the new markets is a complex strategic decision; it does not only involve the entry mode decision but also in some occasions involve partner selection.
Sezi Cevik Onar +2 more
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