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Solving optimal control problems of the time-delayed systems by a neural network framework

open access: yesConnection Science, 2019
A numerical method using neural networks for solving time-delayed optimal control problems is studied. The problem is first transformed into one without a time-delayed argument, using a Páde approximation.
Alireza Nazemi   +2 more
doaj   +1 more source

Asymptotic Expansions for Moench’s Integral Transform of Hydrology

open access: yesMathematics, 2023
Theis’ theory (1935), later improved by Hantush & Jacob (1955) and Moench (1971), is a technique designed to study the water level in aquifers. The key formula in this theory is a certain integral transform H[g](r,t) of the pumping function g that ...
José L. López   +2 more
doaj   +1 more source

Error bound for radial basis interpolation in terms of a growth function [PDF]

open access: yes, 2007
We suggest an improvement of Wu-Schaback local error bound for radial basis interpolation by using a polynomial growth function. The new bound is valid without any assumptions about the density of the interpolation centers.
Davydov, Oleg
core   +3 more sources

Fractional power series neural network for solving delay fractional optimal control problems

open access: yesConnection Science, 2020
In this paper, we develop a numerical method for solving the delay optimal control problems of fractional-order. The fractional derivatives are considered in the Caputo sense.
Farzaneh Kheyrinataj, Alireza Nazemi
doaj   +1 more source

Overview of intelligent optimization algorithm design of FIR digital filter

open access: yesDianzi Jishu Yingyong, 2021
This article summarizes the intelligent optimization algorithm of finite impulse response digital filter(FIR). The main idea of optimization design is to transform the digital filter design problem into the error function minimization problem.
Zhang Shuyu, Wang Ting
doaj   +1 more source

Adaptive Minimum Bit Error Rate Beamforming [PDF]

open access: yes, 2005
An adaptive beamforming technique is proposed based on directly minimizing the bit error rate. It is demonstrated that this minimum bit error rate (MBER) approach utilizes the antenna array elements more intelligently, than the standard minimum mean ...
N. N. Ahmad   +6 more
core   +2 more sources

Analytic Error Function and Numeric Inverse Obtained by Geometric Means

open access: yesStats, 2023
Using geometric considerations, we provided a clear derivation of the integral representation for the error function, known as the Craig formula. We calculated the corresponding power series expansion and proved the convergence.
Dmitri Martila, Stefan Groote
doaj   +1 more source

Multivariate error function based neural network approximations

open access: yesJournal of Numerical Analysis and Approximation Theory, 2014
Here we present multivariate quantitative approximations of real and complex valued continuous multivariate functions on a box or \(\mathbb{R}^{N},\) \(N\in \mathbb{N}\), by the multivariate quasi-interpolation, Baskakov type and quadrature type neural ...
George A. Anastassiou
doaj   +2 more sources

Analysis of Errors in Active Power and Energy Measurements Under Random Harmonic Distortion Conditions

open access: yesMeasurement Science Review, 2021
As harmonic distortion of voltage and current is reality in the power system, the need for accurate measurement of electrical power and energy goes beyond the instruments’ specifications and calibration procedures regarding pure sine wave signals ...
Demerdziev Kiril, Dimchev Vladimir
doaj   +1 more source

Normalized-Gradient-Entropy-Guided Dynamic-Window Error Function Fitting for Subpixel Edge Localization in Monocular Distance Measurement

open access: yesApplied Sciences
Monocular distance measurement estimates the target distance from the apparent size of a known target, and its accuracy is strongly affected by edge localization accuracy.
Yuhao Liu, Yuzhe Pan, Hui Zhang
doaj   +1 more source

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