Results 1 to 10 of about 13,788 (161)

Weakly fuzzy topological entropy [PDF]

open access: yesMathematica Bohemica, 2022
In 2005, İ. Tok fuzzified the notion of the topological entropy R. A. Adler et al. (1965) using the notion of fuzzy compactness of C. L. Chang (1968).
B M Uzzal Afsan
doaj   +3 more sources

Quantitative estimation of chemical microheterogeneity through the determination of fuzzy entropy [PDF]

open access: yesFrontiers in Chemistry, 2022
Chemical micro-heterogeneity is an attribute of all living systems and most of the soft and crystalline materials. Its characterization requires a plethora of techniques.
Pier Luigi Gentili   +2 more
doaj   +2 more sources

Use of Composite Multivariate Multiscale Permutation Fuzzy Entropy to Diagnose the Faults of Rolling Bearing [PDF]

open access: yesEntropy, 2023
The study focuses on the fault signals of rolling bearings, which are characterized by nonlinearity, periodic impact, and low signal-to-noise ratio.
Qiang Yuan   +5 more
doaj   +2 more sources

Entropy of Fuzzy Partitions and Entropy of Fuzzy Dynamical Systems [PDF]

open access: yesEntropy, 2016
In the paper we define three kinds of entropy of a fuzzy dynamical system using different entropies of fuzzy partitions. It is shown that different definitions of the entropy of fuzzy partitions lead to different notions of entropies of fuzzy dynamical ...
Dagmar Markechová, Beloslav Riečan
doaj   +2 more sources

The Group Decision-Making Using Pythagorean Fuzzy Entropy and the Complex Proportional Assessment [PDF]

open access: yesSensors, 2022
The Pythagorean fuzzy sets conveniently capture unreliable, ambiguous, and uncertain information, especially in problems involving multiple and opposing criteria.
Parul Thakur   +5 more
doaj   +2 more sources

Centered and Averaged Fuzzy Entropy to Improve Fuzzy Entropy Precision. [PDF]

open access: yesEntropy (Basel), 2018
Several entropy measures are now widely used to analyze real-world time series. Among them, we can cite approximate entropy, sample entropy and fuzzy entropy (FuzzyEn), the latter one being probably the most efficient among the three. However, FuzzyEn precision depends on the number of samples in the data under study.
Girault JM, Humeau-Heurtier A.
europepmc   +5 more sources

Fractional Refined Composite Multiscale Fuzzy Entropy of International Stock Indices [PDF]

open access: yesEntropy, 2019
Fractional refined composite multiscale fuzzy entropy (FRCMFE), which aims to relieve the large fluctuation of fuzzy entropy (FuzzyEn) measure and significantly discriminate different short-term financial time series with noise, is proposed to quantify ...
Zhiyong Wu, Wei Zhang
doaj   +2 more sources

Type-2 fuzzy entropy sets [PDF]

open access: yesIEEE Transactions on Fuzzy Systems, 2017
The final goal of this study is to adapt the concept of fuzzy entropy of De Luca and Termini to deal with Type-2 Fuzzy Sets. We denote this concept Type-2 Fuzzy Entropy-Set. However, the construction of the notion of entropy measure on an infinite set, such us [0, 1], is not effortless.
Helida Santos   +2 more
exaly   +5 more sources

Spherical fuzzy cross entropy for multiple attribute decision making problems [PDF]

open access: yesJournal of Fuzzy Extension and Applications, 2021
In this paper, we investigate the multiple attribute decision making problems with spherical fuzzy information. The advantage of spherical fuzzy set is easily reflecting the ambiguous nature of subjective judgments because the spherical fuzzy sets are ...
Princy Rayappan, Krishnaswamy Mohana
doaj   +1 more source

Multi-criteria decision-making problem based on the novel probabilistic hesitant fuzzy entropy and TODIM method

open access: yesAlexandria Engineering Journal, 2023
The probabilistic hesitant fuzzy sets (P-HFSs) allow experts to express their preferences regarding different membership degrees with probabilistic information.
Guangfen Yang, Min Ren, Xiumei Hao
doaj   +1 more source

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