Results 11 to 20 of about 27,399 (256)

An Improved Magnetic Field Method to Locate the Grounding Conductor

open access: yesSensors, 2023
The location of the grounding grid conductors is critical for performing corrosion diagnosis and maintenance work. An improved magnetic field differential method to locate the unknown grounding grid based on truncation errors and the round-off errors ...
Fan Yang   +4 more
doaj   +1 more source

Algorithm for Calculating Primary Spectral Density Estimates Using FFT and Analysis of its Accuracy

open access: yesКібернетика та комп'ютерні технології, 2022
Introduction. Fast algorithms for solving problems of spectral and correlation analysis of random processes began to appear mainly after 1965, when the algorithm of fast Fourier transform (FFT) entered computational practice.
Olena Kolomys, Liliya Luts
doaj   +1 more source

Statistical Analysis of Rounded Data: Measurement Errors vs Rounding Errors [PDF]

open access: yesJournal of Mathematical Sciences, 2018
Consider the measurements in which the discretization step is constant and without loss of generality is equal to 1. The measured value \(X\) is rounded to the closest integer \(X^*\) according to the rule \(X^*=[X+0.5]\) where \([x]\) is the integer part of \(x\). Measurements of the quantity \(\mu\) are considered as i.i.d. random samples \(X_1,\dots,
Ushakov, Nikolai, Ushakov, Vladimir G.
openaire   +2 more sources

Computer Technology for Construction ε-Solution of the Problem

open access: yesКібернетика та комп'ютерні технології, 2023
Introduction. Issues of selection and construction of computing resources and methods of their effective use to calculate an approximate solution of the problem with the given accuracy in a limited processor time are considered.
Valerii Zadiraka, Inna Shvidchenko
doaj   +1 more source

Models of Computer Calculations

open access: yesКібернетика та комп'ютерні технології, 2022
Introduction. The complexity of computational algorithms for solving typical problems of computational, applied, and discrete mathematics is analyzed from the perspective of the theory of computation, depending on the computer architecture and the used ...
Valerii Zadiraka   +2 more
doaj   +1 more source

Parallel Algorithm for Solving Overdetermined Systems of Linear Equations, Taking into Account Round-Off Errors

open access: yesAlgorithms, 2023
The paper proposes a parallel algorithm for solving large overdetermined systems of linear algebraic equations with a dense matrix. This algorithm is based on the use of a modification of the conjugate gradient method, which is able to take into account ...
Dmitry Lukyanenko
doaj   +1 more source

Goldilocks Rounding: Achieving Balance Between Accuracy and Parsimony in the Reporting of Relative Effect Estimates

open access: yesCancer Informatics, 2021
Researchers often report a measure to several decimal places more than what is sensible or realistic. Rounding involves replacing a number with a value of lesser accuracy while minimizing the practical loss of validity.
Jimmy T Efird
doaj   +1 more source

Divisions and Square Roots with Tight Error Analysis from Newton–Raphson Iteration in Secure Fixed-Point Arithmetic

open access: yesCryptography, 2023
In this paper, we present new variants of Newton–Raphson-based protocols for the secure computation of the reciprocal and the (reciprocal) square root.
Stan Korzilius, Berry Schoenmakers
doaj   +1 more source

ROUNDING ERRORS AND THEIR EFFECTS

open access: yesFar East Journal of Mathematical Education, 2021
The motivation to write this paper is the fact that students often blindly trust the results of a computation with the computer and rarely question the results. The general opinion is that the computer is perfect and errors only come into the game because of human errors such as faulty programs or incorrect operation.
openaire   +1 more source

Modeling Round-Off Errors in Hydrodynamic Simulations [PDF]

open access: yes, 2022
The growth of the computing capacities makes it possible to obtain more and more precise simulation results. These results are often calculated in binary64 with the idea that round-off errors are not significant. However, exascale is pushing back the known limits and the problems of accumulating round-off errors could come back and require increasing ...
Weens, William   +2 more
openaire   +2 more sources

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