Results 1 to 10 of about 1,402 (212)

An Introduction to Affine Arithmetic

open access: yesTrends in Computational and Applied Mathematics, 2003
Affine arithmetic (AA) is a model for self-validated computation which, like standard interval arithmetic (IA), produces guaranteed enclosures for computed quantities, taking into account any uncertainties in the input data as well as all internal ...
J. Stolfi, L.H. de Figueiredo
doaj   +3 more sources

Implementation and improvements of affine arithmetic

open access: yesNonlinear Theory and Its Applications IEICE, 2015
Affine arithmetic is a well-known tool to reduce the wrapping effect of ordinary interval arithmetic. We discuss several improvements both in theory and in terms of practical implementation. In particular details of INTLAB's affine arithmetic toolbox are presented. Computational examples demonstrate advantages and weaknesses of the approach.
Siegfried M Rump, Masahide Kashiwagi
exaly   +3 more sources

An Affine Arithmetic-Based Power Flow Algorithm Considering the Regional Control of Unscheduled Power Fluctuation

open access: yesEnergies, 2017
With consideration of the intermittency of renewable generation and uncertain load, a regional control strategy is presented to smooth the unscheduled power fluctuation in this letter.
Wei Gu, Lizi Luo
exaly   +3 more sources

Cryptographic protection of RGB images using SPN over Eisenstein integer ring modulo Eisenstein prime [PDF]

open access: yesScientific Reports
This research introduces a fortified cryptographic paradigm for safeguarding RGB image data, founded upon a substitution–permutation network (SPN) architecture defined over the residue class rings of Eisenstein integers modulo a selected prime element ...
Muhammad Sajjad   +4 more
doaj   +2 more sources

A novel color images security-based on SPN over the residue classes of quaternion integers $$\:\varvec{H}{\left(\mathbb{Z}\right)}_{\varvec{\pi\:}}$$ [PDF]

open access: yesScientific Reports
The exponential growth of multimedia data transmission has intensified the demand for advanced image encryption systems capable of resisting contemporary cryptanalytic attacks while maintaining computational efficiency.
Muhammad Sajjad, Nawaf A. Alqwaifly
doaj   +2 more sources

Self-verified extension of affine arithmetic to arbitrary order

open access: yesLe Matematiche, 2008
Affine Arithmetic (AA) is a self-verifying computational approach that keeps track of first-order correlation between uncertainties in the data and intermediate and final results.In this paper we propose a higher-order extension satisfying the requirements ...
Giuseppe Bilotta
doaj   +2 more sources

A dividing method utilizing the best multiplication in affine arithmetic

open access: yesIEICE Electronics Express, 2004
Affine arithmetic (AA) is a variant of interval arithmetic. In AA, it is difficult to realize the efficient nonlinear binomial operations. The purpose of this paper is to propose a new dividing method which consists of a reciprocal and the best multiplication.
Masahide Kashiwagi
exaly   +3 more sources

Multiple color images security by SPN over the residue classes of Gaussian integer $$\:Z{\left[i\right]}_{h}$$ [PDF]

open access: yesScientific Reports
In this paper, the authors present the design of a new pair of 8 × 8 S-boxes over the residue classes of Gaussian integers $$\:Z{\left[i\right]}_{h}$$ and their usage for the encryption of multiple RGB images using a three-stage Substitution-Permutation ...
Muhammad Sajjad   +4 more
doaj   +2 more sources

Bi-level Multi-objective Joint Planning of Distribution Networks Considering Uncertainties

open access: yesJournal of Modern Power Systems and Clean Energy, 2022
With the increasing penetration of photovoltaics in distribution networks, the adaptability of distribution network under uncertainties needs to be considered in the planning of distribution systems.
Shouxiang Wang   +3 more
doaj   +1 more source

Arpra: An Arbitrary Precision Range Analysis Library

open access: yesFrontiers in Neuroinformatics, 2021
Motivated by the challenge of investigating the reproducibility of spiking neural network simulations, we have developed the Arpra library: an open source C library for arbitrary precision range analysis based on the mixed Interval Arithmetic (IA)/Affine
James Paul Turner, Thomas Nowotny
doaj   +1 more source

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