机构

• 数学与系统科学研究院 [3]
• 长春光学精密机械与物... [1]
• 计算机网络信息中心 [1]

采集方式

• OAI收割 [4]
• iSwitch采集 [1]

内容类型

• 期刊论文 [4]
• 会议论文 [1]

发表日期

• 2020 [1]
• 2018 [1]
• 2017 [1]
• 2009 [1]
• 2004 [1]

学科主题

筛选

浏览/检索结果: 共5条，第1-5条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 New subspace minimization conjugate gradient methods based on regularization model for unconstrained optimization 期刊论文  OAI收割 NUMERICAL ALGORITHMS, 2020, 页码: 34 作者:  Zhao, Ting;  Liu, Hongwei;  Liu, Zexian   |  收藏  |  浏览/下载：27/0  |  提交时间：2021/01/14 Conjugate gradient method  p-regularization model  Subspace technique  Nonmonotone line search  Unconstrained optimization   A GENERAL TWO-LEVEL SUBSPACE METHOD FOR NONLINEAR OPTIMIZATION 期刊论文  OAI收割 JOURNAL OF COMPUTATIONAL MATHEMATICS, 2018, 卷号: 36, 期号: 6, 页码: 881-902 作者:  Chen, Chong;  Wen, Zaiwen;  Yuan, Yaxiang   |  收藏  |  浏览/下载：32/0  |  提交时间：2019/03/05 Nonlinear optimization  Convex and nonconvex problems  Subspace technique  Multigrid/multilevel method  Large-scale problems   A Filtered-Davidson Method for Large Symmetric Eigenvalue Problems 期刊论文  OAI收割 EAST ASIAN JOURNAL ON APPLIED MATHEMATICS, 2017, 卷号: 7, 期号: 1, 页码: 21-37 作者:  Miao, Cun-Qiang   |  收藏  |  浏览/下载：18/0  |  提交时间：2018/07/30 Symmetric eigenproblem  filtering technique  Chebyshev polynomials  Krylov subspace  Davidson-type method   Blind channel estimation of MIMO-OFDM based on FDPM (EI CONFERENCE) 会议论文  OAI收割 5th International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2009, September 24, 2009 - September 26, 2009, Beijing, China Gang W.; Ming Z.; Hua C. 收藏  |  浏览/下载：17/0  |  提交时间：2013/03/25 Subspace based methods have been widely discussed in multichannel estimation including MIMO-OFDM system. However  direct subspace methods suffer from heavy computation complexity y of O(N3). In this paper  a new subspace tracking technique called Fast Data Projection Method (FDPM) is proposed for adaptively tracking the noise subspace. The new algorithm has low complexity of O(NL) and is the only numerically stable  low complexity algorithm for tracking subspaces corresponding to the smallest singular values. Simulation results show that the proposed scheme has similar performance to the original. 2009 IEEE.   Ainv and bilum preconditioning techniques 期刊论文  iSwitch采集 Applied mathematics and mechanics-english edition, 2004, 卷号: 25, 期号: 9, 页码: 1012-1021 作者:  Gu, TX;  Chi, XB;  Liu, XP 收藏  |  浏览/下载：32/0  |  提交时间：2019/05/09 Sparse matrix  Preconditioning technique  Bilum  Ainv  Krylov subspace method