Results 1 to 10 of about 424,617 (119)

Modeling the impact of climate variables on agriculture through the F-transform [PDF]

Scientific Reports
The paper investigates the relationship between climatic variables and agricultural production in the United States, focusing on the reciprocal interactions among precipitation data, temperature data, and annual agricultural output (specifically Corn ...
Benedetta Amicizia, Luca Vincenzo Ballestra, Maria Letizia Guerra, Laerte Sorini, Luciano Stefanini   +4 more
doaj   +2 more sources

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

Algorithms, 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

Preimage Problem Inspired by the F-Transform

Mathematics, 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

Semiring-Valued Fuzzy Sets and F-Transform

Mathematics, 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

On the Similarity and Dependence of Time Series

Mathematics, 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

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

Axioms, 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, Laerte Sorini, Luciano Stefanini   +2 more
doaj   +1 more source

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

Mathematica 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

Fuzzy Transform Image Compression in the YUV Space

Computation, 2023
This research proposes a new image compression method based on the F1-transform which improves the quality of the reconstructed image without increasing the coding/decoding CPU time.
Barbara Cardone, Ferdinando Di Martino, Salvatore Sessa   +2 more
doaj   +1 more source

Random Laplace Transform [PDF]

The Egyptian Statistical Journal, 1993
The theory of Laplace Transform (L. T. ) assumed he transformation of deterministic functions, F(t), and computed their corresponding deterministic transfer functions,  f(s). In this paper, the author introduces the random Laplace transform (R. L.
Magdy El Tawil
doaj   +1 more source

Laeng-Morpurgo-type uncertainty inequalities for the Weinstein transform

Cubo, 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