Results 31 to 40 of about 12,077,058 (321)

Fuzzy Transform Image Compression in the YUV Space

open access: yesComputation, 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   +2 more
doaj   +1 more source

A general quantum Laplace transform

open access: yesAdvances in Difference Equations, 2020
In this paper, we introduce a general quantum Laplace transform L β $\mathcal{L}_{\beta }$ and some of its properties associated with the general quantum difference operator D β f ( t ) = ( f ( β ( t ) ) − f ( t ) ) / ( β ( t ) − t ) ${D}_{\beta }f(t)= ({
Enas M. Shehata   +2 more
doaj   +1 more source

F-Transform Inspired Weak Solution to a Boundary Value Problem

open access: yesAxioms, 2019
We propose and show efficiency of a new fuzzy-transform-based numerical method of solving ordinary differential equations with boundary conditions. The focus is on weak solutions and a special construction of a two-parameterized family of test functions.
Linh Nguyen   +2 more
doaj   +1 more source

Local versions of the Wiener–Lévy theorem

open access: yesМатематичні Студії, 2022
Let $h$ be a real-analytic function on the neighborhood of some compact set $K$ on the plane, and let $f(y)$ be the Fourier--Stieltjes transform of a complex measure of a finite total variation without singular components on the Euclidean space.
S. Yu. Favorov
doaj   +1 more source

A Fast Multilevel Fuzzy Transform Image Compression Method [PDF]

open access: yes, 2019
We present a fast algorithm that improves on the performance of the multilevel fuzzy transform image compression method. The multilevel F-transform (for short, MF-tr) algorithm is an image compression method based on fuzzy transforms that, compared to ...
DI Martino, Ferdinando, Sessa
core   +1 more source

A Seneta's Conjecture and the Williamson Transform [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2023
Considering slowly varying functions (SVF), %Seneta (2019) Seneta in 2019 conjectured the following implication, for $\alpha\geq1$,$$\int_0^x y^{\alpha-1}(1-F(y))dy\textrm{\ is SVF}\ \Rightarrow\ \int_{0}^x y^{\alpha}dF(y)\textrm{\ is SVF, as $x\to\infty$
Edward Omey, Meitner Cadena
doaj   +1 more source

Review of modern numerical methods for a simple vanilla option pricing problem [PDF]

open access: yes, 2018
Option pricing is a very attractive issue of financial engineering and optimization. The problem of determining the fair price of an option arises from the assumptions made under a given financial market model.
Holčapek, Michal   +4 more
core   +1 more source

Swarm and Evolutionary Algorithms in Image Compression by F-Transform

open access: yesIEEE Access, 2023
This article investigates the application of swarm and evolutionary algorithms, namely the SOMA, DE, and GA, for optimizing the F-transform-based image compression.
Nguyen Le Toan Nhat Linh, Quoc Bao Diep
doaj   +1 more source

Bitcoin Analysis and Forecasting through Fuzzy Transform

open access: yesAxioms, 2020
Sentiment analysis to characterize the properties of Bitcoin prices and their forecasting is here developed thanks to the capability of the Fuzzy Transform (F-transform for short) to capture stylized facts and mutual connections between time series with ...
Maria Letizia Guerra   +2 more
doaj   +1 more source

A Novel Forecasting Method Based on F-Transform and Fuzzy Time Series

open access: yesInternational Journal of Fuzzy Systems, 2017
The main goal of time series analysis is to establish forecasting model based on past observations and to reduce forecasting error. To achieve these goals, the present paper proposes a new forecasting algorithm based on the fuzzy transform (F-transform ...
Woo-Joo Lee   +3 more
semanticscholar   +1 more source

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