Results 31 to 40 of about 27,846 (265)

ADOM: ADMM-Based Optimization Model for Stripe Noise Removal in Remote Sensing Image

open access: yesIEEE Access, 2023
Remote sensing images (RSI) are useful for various tasks such as Earth observation and climate change. However, RSI may suffer from stripe noise due to physical limitations in sensor systems.
Namwon Kim   +2 more
doaj   +1 more source

Parallel Algorithms for Constrained Tensor Factorization via the Alternating Direction Method of Multipliers [PDF]

open access: yes, 2015
Tensor factorization has proven useful in a wide range of applications, from sensor array processing to communications, speech and audio signal processing, and machine learning.
Liavas, Athanasios P.   +1 more
core   +1 more source

An Alternating Direction Method of Multipliers for Inverse Lithography Problem

open access: yesNumerical Mathematics: Theory, Methods and Applications, 2023
We propose an alternating direction method of multipliers (ADMM) to solve an optimization problem stemming from inverse lithography. The objective functional of the optimization problem includes three terms: the misfit between the imaging on wafer and the target pattern, the penalty term which ensures the mask is binary and the total variation ...
Junqing Chen, Haibo Liu
openaire   +2 more sources

Alternating Direction Method of Multipliers for TOA-Based Positioning Under Mixed Sparse LOS/NLOS Environments

open access: yesIEEE Access, 2021
For positioning system based on wireless sensor networks, NLOS errors are one of the main factors to degrade localization performance of an algorithm, about which lots of research results and analysis have been published in previous literatures to ...
Chengwen He, Yunbin Yuan, Bingfeng Tan
doaj   +1 more source

Fast Stochastic Alternating Direction Method of Multipliers

open access: yesCoRR, 2013
In this paper, we propose a new stochastic alternating direction method of multipliers (ADMM) algorithm, which incrementally approximates the full gradient in the linearized ADMM formulation. Besides having a low per-iteration complexity as existing stochastic ADMM algorithms, the proposed algorithm improves the convergence rate on convex problems from
Leon Wenliang Zhong, James T. Kwok
openaire   +3 more sources

A fully distributed method for distributed multiagent system in a microgrid

open access: yesEnergy Reports, 2021
We address the distributed energy management problem of the economic dispatch of grids in order to balance the power demand and supply. By manipulating the primal problem, we show that the resulting dual problem can be solved by using a decentralized ...
Diyako Ghaderyan   +2 more
doaj   +1 more source

A Proximal Alternating Direction Method of Multipliers with a Substitution Procedure [PDF]

open access: yesMathematical Problems in Engineering, 2020
In this paper, we considers the separable convex programming problem with linear constraints. Its objective function is the sum of m individual blocks with nonoverlapping variables and each block consists of two functions: one is smooth convex and the other one is convex.
Miantao Chao   +2 more
openaire   +2 more sources

Learning-based accelerated sparse signal recovery algorithms

open access: yesICT Express, 2021
In this paper, we propose an accelerated sparse recovery algorithm based on inexact alternating direction of multipliers. We formulate a sparse recovery problem with a concave regularizer and solve it with the relaxed and accelerated alternating method ...
Dohyun Kim, Daeyoung Park
doaj   +1 more source

Scalable Stochastic Alternating Direction Method of Multipliers

open access: yesCoRR, 2015
Stochastic alternating direction method of multipliers (ADMM), which visits only one sample or a mini-batch of samples each time, has recently been proved to achieve better performance than batch ADMM. However, most stochastic methods can only achieve a convergence rate $O(1/\sqrt T)$ on general convex problems,where T is the number of iterations ...
Shen-Yi Zhao, Wu-Jun Li, Zhi-Hua Zhou
openaire   +2 more sources

On Convergence Rates of Proximal Alternating Direction Method of Multipliers

open access: yesJournal of Scientific Computing, 2023
AbstractIn this paper we consider from two different aspects the proximal alternating direction method of multipliers (ADMM) in Hilbert spaces. We first consider the application of the proximal ADMM to solve well-posed linearly constrained two-block separable convex minimization problems in Hilbert spaces and obtain new and improved non-ergodic ...
openaire   +3 more sources

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