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检索条件"主题词=Conjugate Gradient Algorithm"
206 条 记 录,以下是11-20 订阅
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A conjugate gradient algorithm based on double parameter scaled Broyden-Fletcher-Goldfarb-Shanno update for optimization problems and image restoration
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NEURAL COMPUTING & APPLICATIONS 2022年 第1期34卷 535-553页
作者: Luo, Dan Li, Yong Lu, Junyu Yuan, Gonglin Guangxi Univ Coll Math & Informat Sci Ctr Appl Math Guangxi Nanning 530004 Guangxi Peoples R China Baise Univ Sch Math & Stat Baise 533000 Guangxi Peoples R China Beibu Gulf Univ Coll Sci Qinzhou 535011 Guangxi Peoples R China
In this paper, we present a three-term conjugate gradient algorithm and three approaches are used in the designed algorithm: (i) A modified weak Wolfe-Powell line search technique is introduced to obtain alpha(k). (ii... 详细信息
来源: 评论
An improved Dai-Kou conjugate gradient algorithm for unconstrained optimization
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COMPUTATIONAL OPTIMIZATION AND APPLICATIONS 2020年 第1期75卷 145-167页
作者: Liu, Zexian Liu, Hongwei Dai, Yu-Hong Xidian Univ Sch Math & Stat Xian 710126 Shaanxi Peoples R China Chinese Acad Sci Acad Math & Syst Sci ICMSEC LSEC Beijing 100190 Peoples R China
It is gradually accepted that the loss of orthogonality of the gradients in a conjugate gradient algorithm may decelerate the convergence rate to some extent. The Dai-Kou conjugate gradient algorithm (SIAM J Optim 23(... 详细信息
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On the complexity of the preconditioned conjugate gradient algorithm for solving Toeplitz systems with a Fisher-Hartwig singularity
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SIAM JOURNAL ON MATRIX ANALYSIS AND APPLICATIONS 2005年 第3期27卷 638-653页
作者: Lu, Y Hurvich, CM NYU Stern Sch Business New York NY 10012 USA
The Toeplitz matrix T-n with generating function f(omega) = |1 - e(-i omega)|(-2d)h(omega), where d is an element of (- (1)/(2), (1)/(2)) \ {0} and h(omega) is positive, continuous on [- pi, pi], and differentiable on... 详细信息
来源: 评论
PARALLEL IMPLEMENTATION OF THE BLOCK conjugate-gradient algorithm
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PARALLEL COMPUTING 1987年 第1-2期5卷 127-139页
作者: OLEARY, DP UNIV MARYLAND INST ADV COMP STUDIESCOLLEGE PKMD 20742
The conjugate gradient algorithm is well-suited for vector computation but, because of its many synchronization points and relatively short message packets, is more difficult to implement for parallel computation. In ... 详细信息
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A Non-Linear Blind Source Separation Method Based on Perceptron Structure and conjugate gradient algorithm
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CIRCUITS SYSTEMS AND SIGNAL PROCESSING 2014年 第11期33卷 3573-3590页
作者: Li, Wei Yang, Huizhong Jiangnan Univ Minist Educ Key Lab Adv Proc Control Light Ind Wuxi 214122 Jiangsu Peoples R China
The linear mixing model has been considered previously in most of the researches which are devoted to the blind source separation (BSS) problem. In practice, a more realistic BSS mixing model should be the non-linear ... 详细信息
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Research on the conjugate gradient algorithm with a modified incomplete Cholesky preconditioner on GPU
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JOURNAL OF PARALLEL AND DISTRIBUTED COMPUTING 2014年 第2期74卷 2088-2098页
作者: Gao, Jiaquan Liang, Ronghua Wang, Jun Zhejiang Univ Technol Coll Comp Sci & Technol Hangzhou 310023 Zhejiang Peoples R China Georgia Inst Technol Sch Elect & Comp Engn Atlanta GA 30332 USA
In this study, we discover the parallelism of the forward/backward substitutions (FBS) for two cases and thus propose an efficient preconditioned conjugate gradient algorithm with the modified incomplete Cholesky prec... 详细信息
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The conjugate gradient algorithm applied to quaternion valued matrices
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ZAMM-ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND MECHANIK 2005年 第9期85卷 660-672页
作者: Opfer, G Univ Hamburg Dept Math Ctr Optimizat & Approximat D-20146 Hamburg Germany
Quaternions are a tool used to describe motions of rigid bodies in R-3, (Kuipers, [15]). An interesting application is the topic of moving surfaces (Traversoni, [21]), where quaternion interpolation is used which requ... 详细信息
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Using Elman Recurrent Neural Networks with conjugate gradient algorithm in Determining the Anesthetic the Amount of Anesthetic Medicine to Be Applied
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JOURNAL OF MEDICAL SYSTEMS 2010年 第4期34卷 479-484页
作者: Gunturkun, Ruestue Dumlupinar Univ Dept Elect Simav Kutahya Turkey Dumlupinar Univ Comp Tech Educ Fac Simav Kutahya Turkey
In this study, Elman recurrent neural networks have been defined by using conjugate gradient algorithm in order to determine the depth of anesthesia in the continuation stage of the anesthesia and to estimate the amou... 详细信息
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On prescribing the convergence behavior of the conjugate gradient algorithm
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NUMERICAL algorithmS 2020年 第4期84卷 1353-1380页
作者: Meurant, Gerard Paris France
The conjugate gradient (CG) algorithm is the most frequently used iterative method for solving linear systemsAx=bwith a symmetric positive definite (SPD) matrix. In this paper we construct real symmetric positive defi... 详细信息
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Convergence property of conjugate gradient algorithm and its fast tracking algorithm
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IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES 2000年 第11期E83A卷 2374-2378页
作者: Kim, DI De Wilde, P Univ London Imperial Coll Sci Technol & Med Dept Elect & Elect Engn London SW7 2BT England
This article addresses two issues. Firstly, the convergence property of conjugate gradient (CG) algorithm is investigated by a Chebyshev polynomial approximation. The analysis result shows that its convergence behavio... 详细信息
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