Results 91 to 100 of about 20,294 (194)

Low-complexity variable step-size sign algorithm based on Weibull distribution function

open access: yesDianxin kexue, 2018
The performance of the traditional second-order statistics based channel estimation methods degrade seriously in the presence of impulsive noises.In order to deal with this problem,a Weibull distribution function based variable step-size sign algorithm ...
Rui ZHANG   +3 more
doaj   +2 more sources

A Variable Step-Size Proportionate Affine Projection Algorithm for Identification of Sparse Impulse Response

open access: yesEURASIP Journal on Advances in Signal Processing, 2009
Proportionate adaptive algorithms have been proposed recently to accelerate convergence for the identification of sparse impulse response. When the excitation signal is colored, especially the speech, the convergence performance of proportionate NLMS ...
Ligang Liu   +3 more
doaj   +1 more source

Distributed Stochastic Optimization over Time-Varying Noisy Network

open access: yes, 2020
This paper is concerned with distributed stochastic multi-agent optimization problem over a class of time-varying network with slowly decreasing communication noise effects. This paper considers the problem in composite optimization setting which is more
Ho, Daniel W. C., Yu, Zhan, Yuan, Deming
core  

The Wavelet Transform-Domain LMS Adaptive Filter Algorithm with Variable Step-Size

open access: yesIranian Journal of Electrical and Electronic Engineering, 2017
The wavelet transform-domain least-mean square (WTDLMS) algorithm uses the self-orthogonalizing technique to improve the convergence performance of LMS.
M. Shams Esfand Abadi   +2 more
doaj  

Solution for nonlinear Duffing oscillator using variable order variable stepsize block method

open access: yesMATEMATIKA, 2017
Real life phenomena found in various fields such as engineering, physics, biology and communication theory can be modeled as nonlinear higher order ordinary differential equations, particularly the Duffing oscillator. Analytical solutions for these differential equations can be time consuming whereas, conventional numerical solutions may lack accuracy.
Rasedee, Ahmad Fadly Nurullah   +7 more
openaire   +2 more sources

On the Stability of Variable Stepsize Rational Approximations of Holomorphic Semigroups [PDF]

open access: yesMathematics of Computation, 1994
We consider variable stepsize time approximations of holomorphic semigroups on general Banach spaces. For strongly A ( θ ) {\text {A}}(\theta ) -acceptable rational functions a general stability theorem is proved, which does not impose any constraint on the ratios between stepsizes.
openaire   +1 more source

A Variable Step-Size FxLMS Algorithm for Nonlinear Feedforward Active Noise Control

open access: yesSensors
Active noise control (ANC) represents an efficient technology for enhancing the noise suppression performance and ensuring the stable operation of multi-sensor systems through generative model-enhanced data representation and dynamic information fusion ...
Thi Trung Tin Nguyen   +5 more
doaj   +1 more source

Nernst-Planck-Gaussian modelling of electrodiffusional recovery from ephaptic excitation between mammalian cardiomyocytes. [PDF]

open access: yesFront Physiol, 2023
Morris JA   +5 more
europepmc   +1 more source

Tracking the gradients using the Hessian: A new look at variance reducing stochastic methods

open access: yes, 2018
Our goal is to improve variance reducing stochastic methods through better control variates. We first propose a modification of SVRG which uses the Hessian to track gradients over time, rather than to recondition, increasing the correlation of the ...
Bach, Francis   +2 more
core  

Variable-stepsize implicit Peer triplets in ODE constrained optimal control

open access: yesJournal of Computational and Applied Mathematics
38 pages, 6 ...
Jens Lang, Bernhard A. Schmitt
openaire   +3 more sources

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