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Локально-одномерные схемы для уравнения, описывающего коагуляционные процессы в конвективных облаках, обладающих «памятью»

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2022
В статье рассматривается локально-одномерная разностная схема для параболического уравнения общего вида в p-мерном параллелепипеде. Для описания коагуляционных процессов в средах, обладающих «памятью», в уравнение включаются нелокальные (интегральные ...
Шхануков–Лафишев, М. Х.   +2 more
doaj   +1 more source

An Improved Imaging Algorithm for Multi-Receiver SAS System with Wide-Bandwidth Signal

open access: yesRemote Sensing, 2021
When the multi-receiver synthetic aperture sonar (SAS) works with a wide-bandwidth signal, the performance of the range-Doppler (R-D) algorithm is seriously affected by two approximation errors, i.e., point target reference spectrum (PTRS) error and ...
Xuebo Zhang, Peixuan Yang
doaj   +1 more source

Exact and Approximated Error of the FMA [PDF]

open access: yesIEEE Transactions on Computers, 2011
The fused multiply accumulate-add (FMA) instruction, specified by the IEEE 754-2008 Standard for Floating-Point Arithmetic, eases some calculations, and is already available on some current processors such as the Power PC or the Itanium. We first extend an earlier work on the computation of the exact error of an FMA (by giving more general conditions ...
Boldo, Sylvie, Muller, Jean-Michel
openaire   +2 more sources

Error bounds in stochastic-geometric normal approximation [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2008
We provide normal approximation error bounds for sums of the form $\sum_x \xi_x$, indexed by the points $x$ of a Poisson process (not necessarily homogeneous) in the unit $d$-cube, with each term $\xi_x$ determined by the configuration of Poisson points ...
Mathew Penrose, Tom Rosoman
doaj   +1 more source

Development and Research of a Modified Upwind Leapfrog Scheme for Solving Transport Problems

open access: yesMathematics, 2022
Modeling complex hydrodynamic processes in coastal systems is an important problem of mathematical modeling that cannot be solved analytically. The approximation of convective terms is difficult from the point of view of error reduction.
Alexander Sukhinov   +4 more
doaj   +1 more source

New Accurate Approximation for Average Error Probability

open access: yesIEEE Access, 2021
This paper proposes new accurate approximations for average error probability (AEP) of a communication system employing either M-phase-shift keying (PSK) or differential quaternary PSK with Gray coding (GC-DQPSK) modulation schemes over generalized ...
Yassine Mouchtak, Faissal El Bouanani
doaj   +1 more source

Fuzzy Adaptive Backstepping Control of Nonlinear Uncertain Systems With Unmeasured States and Input Saturation

open access: yesIEEE Access, 2020
Considering the uncertainties caused by multiple concurrent complex environments, we investigate the robust adaptive control of multi-source uncertain systems under unmeasurable states and input saturation.
Kai-Yu Hu, Aaly Yusuf, Zian Cheng
doaj   +1 more source

An Approach for Impedance Matrix Computation Considering Phase Transposition on Distribution Lines

open access: yesIEEE Access, 2020
A renewed interest in phase frame analysis of distribution systems has surfaced in recent literature due to rapid expansion of grid-integrated distributed generation and non-linear loads, whose grid imbalance-increasing effects require more detailed ...
Henrique Pires Correa   +1 more
doaj   +1 more source

Influence of Binomial Crossover on Approximation Error of Evolutionary Algorithms

open access: yesMathematics, 2022
Although differential evolution (DE) algorithms perform well on a large variety of complicated optimization problems, only a few theoretical studies are focused on the working principle of DE algorithms.
Cong Wang, Jun He, Yu Chen, Xiufen Zou
doaj   +1 more source

Approximation with Error Bounds in Spark [PDF]

open access: yes2019 IEEE 27th International Symposium on Modeling, Analysis, and Simulation of Computer and Telecommunication Systems (MASCOTS), 2019
We introduce a sampling framework to support approximate computing with estimated error bounds in Spark. Our framework allows sampling to be performed at the beginning of a sequence of multiple transformations ending in an aggregation operation. The framework constructs a data provenance tree as the computation proceeds, then combines the tree with ...
Guangyan Hu   +3 more
openaire   +2 more sources

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