Results 11 to 20 of about 15,191 (264)

Fuzzy Hilbert Transform of Fuzzy Functions

open access: yesMathematics
This paper studies the properties of the Fourier transform of the fuzzy function, and extends the classical Poisson integral formula on the half plane to the fuzzy case, obtaining the composition of the fuzzy set generated by a point in the complex field
Zhibo Yan
doaj   +2 more sources

Image Matching by Using Fuzzy Transforms [PDF]

open access: yesAdvances in Fuzzy Systems, 2013
We apply the concept of Fuzzy Transform (for short, F-transform) for improving the results of the image matching based on the Greatest Eigen Fuzzy Set (for short, GEFS) with respect to max-min composition and the Smallest Eigen Fuzzy Set (for short, SEFS)
Ferdinando Di Martino, Salvatore Sessa
doaj   +3 more sources

Applications of the Fuzzy Sumudu Transform for the Solution of First Order Fuzzy Differential Equations

open access: yesEntropy, 2015
In this paper, we study the classical Sumudu transform in fuzzy environment, referred to as the fuzzy Sumudu transform (FST). We also propose some results on the properties of the FST, such as linearity, preserving, fuzzy derivative, shifting and ...
Norazrizal Aswad Abdul Rahman   +1 more
doaj   +2 more sources

A Novel Classification Algorithm Based on Multidimensional F1 Fuzzy Transform and PCA Feature Extraction

open access: yesAlgorithms, 2023
The bi-dimensional F1-Transform was applied in image analysis to improve the performances of the F-transform method; however, due to its high computational complexity, the multidimensional F1-transform cannot be used in data analysis problems, especially
Barbara Cardone, Ferdinando Di Martino
doaj   +1 more source

A Combination of Fuzzy Techniques and Chow Test to Detect Structural Breaks in Time Series

open access: yesAxioms, 2023
In a series of papers, we suggested a non-statistical method for the detection of structural breaks in a time series. It is based on the applications of special fuzzy modeling methods, namely Fuzzy transform (F-transform) and selected methods of Fuzzy ...
Vilém Novák, Thi Thanh Phuong Truong
doaj   +1 more source

Preimage Problem Inspired by the F-Transform

open access: yesMathematics, 2022
In this article, we focus on discrete data processing. We propose to use the concept of closeness, which is less restrictive than a metric, to describe a certain relationship between objects.
Jiří Janeček, Irina Perfilieva
doaj   +1 more source

On the Similarity and Dependence of Time Series

open access: yesMathematics, 2021
In this paper, we undertake the problem of evaluating interrelation among time series. Interrelation is measured using a similarity index. In this paper, we suggest a new one based on the known fuzzy transform (F-transform), which has been proven to ...
Vilém Novák, Soheyla Mirshahi
doaj   +1 more source

Analysis of the Performance Measures of a Non-Markovian Fuzzy Queue via Fuzzy Laplace Transforms Method

open access: yesJournal of Computing Research and Innovation, 2022
Laplace transforms play an essential role in the analysis of classical non-Markovian queueing systems. The problem addressed here is whether the Laplace transform approach is still valid for determining the characteristics of such a system in a fuzzy ...
Baudouin Adia Leti Mawa   +3 more
doaj   +3 more sources

Fuzzy Functions, Relations, and Fuzzy Transforms 2013 [PDF]

open access: yesAdvances in Fuzzy Systems, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Salvatore Sessa   +2 more
openaire   +5 more sources

Semiring-Valued Fuzzy Sets and F-Transform

open access: yesMathematics, 2021
The notion of a semiring-valued fuzzy set is introduced for special commutative partially pre-ordered semirings, including basic operations with these fuzzy structures. It is showed that many standard MV-algebra-valued fuzzy type structures with standard
Jiří Močkoř
doaj   +1 more source

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