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Why Use a Fuzzy Partition in F-Transform? [PDF]

open access: yesAxioms, 2019
In many application problems, F-transform algorithms are very efficient. In F-transform techniques, we replace the original signal or image with a finite number of weighted averages.
Vladik Kreinovich   +2 more
doaj   +2 more sources

Advanced F-Transform-Based Image Fusion [PDF]

open access: yesAdvances in Fuzzy Systems, 2012
We propose to use the modern technique of the F-transform in order to show that it can be successfully applied to the image fusion. We remind two working algorithms (SA—the simple algorithm, and CA—the complete algorithm) which are based on the F ...
Marek Vajgl   +2 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

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

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

F-transform and discrete convolution [PDF]

open access: yesAdvances in Intelligent Systems Research, 2015
Discrete convolution is commonly used operation in the image processing field. The technique modifies an input image in various ways by scalable and easy computation. We are able to achieve many applications such as edge detection, noise reduction or artistic filtering, by selection of the proper kernel. The technique of the F-transform investigated in
Pavel Vlasánek, Irina Perfilieva
openaire   +1 more source

On the Numerical Solution of Ordinary, Interval and Fuzzy Differential Equations by Use of F-Transform

open access: yesAxioms, 2020
An interesting property of the inverse F-transform f ^ of a continuous function f on a given interval [ a , b ] says that the integrals of f ^ and f on [ a , b ] coincide.
Davide Radi   +2 more
doaj   +1 more source

On the order of magnitude of Walsh-Fourier transform [PDF]

open access: yesMathematica Bohemica, 2020
For a Lebesgue integrable complex-valued function $f$ defined on $\mathbb R^+:=[0,\infty)$ let $\hat f$ be its Walsh-Fourier transform. The Riemann-Lebesgue lemma says that $\hat f(y)\to0$ as $y\to\infty$.
Bhikha Lila Ghodadra, Vanda Fülöp
doaj   +1 more source

Laeng-Morpurgo-type uncertainty inequalities for the Weinstein transform

open access: yesCubo, 2023
In this work, by combining Carlson-type and Nash-type inequalities for the Weinstein transform $\mathscr{F}_W$ on $\mathbb{K}=\mathbb{R}^{d-1}\times[0,\infty)$, we show Laeng-Morpurgo-type uncertainty inequalities.
Fethi Soltani, Slim Ben Rejeb
doaj   +1 more source

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