A Parallel Splitting Augmented Lagrangian Method for Two-Block Separable Convex Programming with Application in Image Processing

The augmented Lagrangian method (ALM) is one of the most successful first-order methods for convex programming with linear equality constraints. To solve the two-block separable convex minimization problem, we always use the parallel splitting ALM method. In this paper, we will show that no matter h...

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Vydáno v:Mathematical problems in engineering Ročník 2020; číslo 2020; s. 1 - 10
Hlavní autoři: Liu, Jing, Wang, Tonghui, Duan, Yongrui
Médium: Journal Article
Jazyk:angličtina
Vydáno: Cairo, Egypt Hindawi Publishing Corporation 2020
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John Wiley & Sons, Inc
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ISSN:1024-123X, 1563-5147
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Abstract The augmented Lagrangian method (ALM) is one of the most successful first-order methods for convex programming with linear equality constraints. To solve the two-block separable convex minimization problem, we always use the parallel splitting ALM method. In this paper, we will show that no matter how small the step size and the penalty parameter are, the convergence of the parallel splitting ALM is not guaranteed. We propose a new convergent parallel splitting ALM (PSALM), which is the regularizing ALM’s minimization subproblem by some simple proximal terms. In application this new PSALM is used to solve video background extraction problems and our numerical results indicate that this new PSALM is efficient.
AbstractList The augmented Lagrangian method (ALM) is one of the most successful first-order methods for convex programming with linear equality constraints. To solve the two-block separable convex minimization problem, we always use the parallel splitting ALM method. In this paper, we will show that no matter how small the step size and the penalty parameter are, the convergence of the parallel splitting ALM is not guaranteed. We propose a new convergent parallel splitting ALM (PSALM), which is the regularizing ALM’s minimization subproblem by some simple proximal terms. In application this new PSALM is used to solve video background extraction problems and our numerical results indicate that this new PSALM is efficient.
Author Liu, Jing
Wang, Tonghui
Duan, Yongrui
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Cites_doi 10.1093/imanum/drt060
10.1137/100781894
10.1137/090777761
10.1007/s10589-015-9736-6
10.1137/130922793
10.1016/j.cam.2018.07.007
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10.1137/s1064827596304010
10.1007/s10589-015-9770-4
10.1007/s11263-013-0611-6
10.1109/tpami.2011.282
10.1007/bf00927673
10.1137/080738970
10.1007/s11263-012-0515-x
10.1137/060657704
ContentType Journal Article
Copyright Copyright © 2020 Jing Liu et al.
Copyright © 2020 Jing Liu et al. This is an open access article distributed under the Creative Commons Attribution License (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. http://creativecommons.org/licenses/by/4.0
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SubjectTerms Convergence
Convexity
Image processing
Mathematical problems
Nonlinear programming
Optimization
Splitting
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Title A Parallel Splitting Augmented Lagrangian Method for Two-Block Separable Convex Programming with Application in Image Processing
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