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Variable Step Size Adams Methods for BSDEs

open access: yesJournal of Mathematics, 2021
For backward stochastic differential equations (BSDEs), we construct variable step size Adams methods by means of Itô–Taylor expansion, and these schemes are nonlinear multistep schemes.
Qiang Han
doaj   +2 more sources

A variable step-size strategy for distributed estimation over adaptive networks [PDF]

open access: yesEURASIP Journal on Advances in Signal Processing, 2013
A lot of work has been done recently to develop algorithms that utilize the distributed structure of anad hocwireless sensor network to estimate a certain parameter of interest. One such algorithm is called diffusion least-mean squares (DLMS).
Azzedine Zerguine   +2 more
core   +4 more sources

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

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   +2 more sources

A Variable Step‐Size Leaky LMS Algorithm [PDF]

open access: yesWireless Communications and Mobile Computing, 2021
The leaky LMS algorithm has been extensively studied because of its control of parameter drift. This unexpected parameter drift is linked to the inadequacy of excitation in the input sequence. And generally leaky LMS algorithms use fixed step size to force the performance of compromise between the fast convergence rate and small steady‐state ...
Sihai Zhao, Jiangye Xu, Yuyan Zhang
openaire   +1 more source

Development of an Efficient Variable Step-Size Gradient Method Utilizing Variable Fractional Derivatives

open access: yesFractal and Fractional, 2023
The fractional gradient method has garnered significant attention from researchers. The common view regarding fractional-order gradient methods is that they have a faster convergence rate compared to classical gradient methods.
Luotang Ye, Yanmao Chen, Qixian Liu
doaj   +1 more source

Distributed Variable Sample-Size Stochastic Optimization With Fixed Step-Sizes

open access: yesIEEE Transactions on Automatic Control, 2022
The paper considers distributed stochastic optimization over randomly switching networks, where agents collaboratively minimize the average of all agents' local expectation-valued convex cost functions. Due to the stochasticity in gradient observations, distributedness of local functions, and randomness of communication topologies, distributed ...
Jinlong Lei   +3 more
openaire   +2 more sources

A Variable Step Size Normalized Least-Mean-Square Algorithm Based on Data Reuse

open access: yesAlgorithms, 2022
The principal issue in acoustic echo cancellation (AEC) is to estimate the impulse response between the loudspeaker and microphone of a hands-free communication device.
Alexandru-George Rusu   +3 more
doaj   +1 more source

Microseismic source locating method based on variable step size accelerated search

open access: yesRock and Soil Mechanics, 2022
Microseismic locating method is an important part of microseismic monitoring technology, the key of which is to locate the hypocenter. In this study, we analyze the two- and three-dimensional spatial distributions of microseismic locating objective ...
JIA Bao-xin   +3 more
doaj   +1 more source

Firefly Algorithm Based on Level-Based Attracting and Variable Step Size

open access: yesIEEE Access, 2020
To address the challenge of local optimization and step size factor parameter setting in the full attraction model of the firefly algorithm (FA), this paper introduces level-based attraction and variable step size to FA.
Jia Zhao   +5 more
doaj   +1 more source

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