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检索条件"主题词=proximal gradient algorithm"
38 条 记 录,以下是21-30 订阅
排序:
Convergence rates of accelerated proximal gradient algorithms under independent noise
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NUMERICAL algorithmS 2019年 第2期81卷 631-654页
作者: Sun, Tao Barrio, Roberto Jiang, Hao Cheng, Lizhi Natl Univ Def Technol Dept Math Changsha 410073 Hunan Peoples R China Univ Zaragoza Dept Matemat Aplicada IUMA Grp Pedro Cerbuna 12 E-50009 Zaragoza Spain Univ Zaragoza Dept Matemat Aplicada CoDy Grp Pedro Cerbuna 12 E-50009 Zaragoza Spain Natl Univ Def Technol Coll Comp Changsha 410073 Hunan Peoples R China Natl Univ Def Technol Coll Sci Changsha 410073 Hunan Peoples R China Natl Univ Def Technol State Key Lab High Performance Computat Changsha 410073 Hunan Peoples R China
We consider an accelerated proximal gradient algorithm for the composite optimization with independent errors (errors little related with historical information) for solving linear inverse problems. We present a new i... 详细信息
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Robust Multivariate Lasso Regression with Covariance Estimation
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JOURNAL OF COMPUTATIONAL AND GRAPHICAL STATISTICS 2023年 第3期32卷 961-973页
作者: Chang, Le Welsh, A. H. Australian Natl Univ Res Sch Finance Actuarial Studies & Stat Canberra ACT Australia
Multivariate regression with covariance estimation (MRCE) is a method that performs sparse estimation of multivariate regression coefficients, while taking account the covariance structure of the response variables. M... 详细信息
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EXTERNAL DIVISION OF TWO PROXIMITY OPERATORS: AN APPLICATION TO SIGNAL RECOVERY WITH STRUCTURED SPARSITY  49
EXTERNAL DIVISION OF TWO PROXIMITY OPERATORS: AN APPLICATION...
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49th IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP)
作者: Suzuki, Kyohei Yukawa, Masahiro Keio Univ Dept Elect & Elect Engn Minato City Tokyo Japan
This paper studies the external division operator, an external division (an affine combination with positive and negative weights) of two proximity operators. We show that the external division operator is cocoercive ... 详细信息
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Fast multidimensional completion and principal component analysis methods via the cosine product
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CALCOLO 2022年 第3期59卷 1-33页
作者: Bentbib, A. H. El Hachimi, A. Jbilou, K. Ratnani, A. Fac Sci & Tech Gueliz Lab Math Appl Marrakech Morocco Mohammed VI Polytech Univ Lab MSDA Green City Morocco Univ Littoral Cote dOpale LMPA 50 Rue F Buisson F-62228 Calais Cedex 62228 France Univ M6 Benguerir Morocco
In the present work, we propose new methods for the problem of third-order tensor completion and tensor robust principal component analysis (TRPCA). The proposed approaches are based on finding a low-rank tensor by so... 详细信息
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Image Fusion Via Slice-Based Convolutional Sparse Representation  48
Image Fusion Via Slice-Based Convolutional Sparse Representa...
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48th IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2023
作者: Xu, Jingchen Zhang, Yali Li, Ze Wang, Jinjia Yanshan University School of Information and Science Engineer China Yanshan University Hebei Key Laboratory of Information Transmission and Singal Processing China
For pixel-level image fusion, convolutional sparse representation model usually relies on the ADMM in the Fourier domain, generating many iterations and losing the sense of locality, which may result in fused images w... 详细信息
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Difference of two norms-regularizations for Q-Lasso
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APPLIED COMPUTING AND INFORMATICS 2021年 第1期17卷 79-89页
作者: Moudafi, Abdellatif Aix Marseille Univ LIS UMR CNRS 7020 Domaine Univ St Jerome Marseille France
The focus of this paper is in Q-Lasso introduced in Alghamdi et al. (2013) which extended the Lasso by Tibshirani (1996). The closed convex subset Q belonging in a Euclidean m-space, for m is an element of IN, is the ... 详细信息
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Applying FISTA to optimization problems (with or) without minimizers
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MATHEMATICAL PROGRAMMING 2020年 第1-2期184卷 349-381页
作者: Bauschke, Heinz H. Bui, Minh N. Wang, Xianfu Univ British Columbia Math Kelowna BC V1V 1V7 Canada North Carolina State Univ Dept Math Raleigh NC 27695 USA
Beck and Teboulle's FISTA method for finding a minimizer of the sum of two convex functions, one of which has a Lipschitz continuous gradient whereas the other may be nonsmooth, is arguably the most important opti... 详细信息
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An accelerated IRNN-Iteratively Reweighted Nuclear Norm algorithm for nonconvex nonsmooth low-rank minimization problems
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JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS 2021年 396卷
作者: Phan, Duy Nhat Nguyen, Thuy Ngoc Ho Chi Minh City Univ Educ Dept Math & Informat Ho Chi Minh City Vietnam Carnegie Mellon Univ Dynam Decis Making Lab Pittsburgh PA 15213 USA
Low-rank minimization problems arise in numerous important applications such as recommendation systems, machine learning, network analysis, and so on. The problems however typically consist of minimizing a sum of a sm... 详细信息
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Fast Total Variation-Based Image Restoration Using Blockwise Accelerated proximal gradient Approach  9
Fast Total Variation-Based Image Restoration Using Blockwise...
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9th International Conference on Graphic and Image Processing (ICGIP)
作者: Xiao, Gang Yang, Zifei Lv, Weigang Liu, Shan 211 Hosp PLA Harbin Heilongjiang Peoples R China Harbin Inst Technol Harbin Heilongjiang Peoples R China Ocean Univ China Qingdao Peoples R China
This paper proposes a blockwise accelerated proximal gradient (BAPG) approach. It chooses a block diagonal Lipschitz matrix in the generalized APG algorithm, such that the subproblems can be solved either by fast Four... 详细信息
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Online Topology Inference from Streaming Stationary Graph Signals with Partial Connectivity Information
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algorithmS 2020年 第9期13卷
作者: Shafipour, Rasoul Mateos, Gonzalo Microsoft Redmond WA 98052 USA Univ Rochester Dept Elect & Comp Engn Rochester NY 14627 USA
We develop online graph learning algorithms from streaming network data. Our goal is to track the (possibly) time-varying network topology, and affect memory and computational savings by processing the data on-the-fly... 详细信息
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