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检索条件"机构=State Key Laboratory of Scientific&Engineering Computing"
418 条 记 录,以下是201-210 订阅
排序:
Precise Analysis of Covariance Identifiability for Activity Detection in Grant-Free Random Access
arXiv
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arXiv 2024年
作者: Luo, Shengsong Ma, Junjie Xu, Chongbin Wang, Xin the Department of Communication Science and Engineering Fudan University Shanghai200433 China The State Key Laboratory of Scientific and Engineering Computing Institute of Computational Mathematics and Scientific/Engineering Computing Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing100190 China
We consider the identifiability issue of maximum-likelihood based activity detection in massive MIMO-based grant-free random access. An intriguing observation by Chen et al. [1] indicates that the identifiability unde... 详细信息
来源: 评论
Time-Division Energy Beamforming for Multiuser Wireless Power Transfer with Non-Linear Energy Harvesting
arXiv
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arXiv 2020年
作者: Ma, Ganggang Xu, Jie Liu, Ya-Feng Vedady Moghadam, Mohammad R. Shenzhen China Shenzhen China State Key Laboratory of Scientific and Engineering Computing Institute of Computational Mathematics and Scientific/Engineering Computing Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing China TransferFi Pte Ltd Singapore
Energy beamforming has emerged as a promising technique for enhancing the energy transfer efficiency of wireless power transfer (WPT). However, the performance of conventional energy beamforming may seriously degrade ... 详细信息
来源: 评论
A brief introduction to manifold optimization
arXiv
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arXiv 2019年
作者: Hu, Jiang Liu, Xin Wen, Zaiwen Yuan, Yaxiang Beijing International Center for Mathematical Research Peking University China State Key Laboratory of Scientific and Engineering Computing Academy of Mathematics and Systems Science Chinese Academy of Sciences University of Chinese Academy of Sciences China State Key Laboratory of Scientific and Engineering Computing Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing China
Manifold optimization is ubiquitous in computational and applied mathematics, statistics, engineering, machine learning, physics, chemistry and etc. One of the main challenges usually is the non-convexity of the manif... 详细信息
来源: 评论
Asymptotic SEP Analysis and Optimization of Linear-Quantized Precoding in Massive MIMO Systems
arXiv
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arXiv 2023年
作者: Wu, Zheyu Ma, Junjie Liu, Ya-Feng Swindlehurst, A. Lee The State Key Laboratory of Scientific and Engineering Computing Institute of Computational Mathematics and Scientific/Engineering Computing Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing100190 China The Center for Pervasive Communications and Computing University of California IrvineCA92697 United States
A promising approach to deal with the high hardware cost and energy consumption of massive MIMO transmitters is to use low-resolution digital-to-analog converters (DACs) at each antenna element. This leads to a transm... 详细信息
来源: 评论
Decentralized Optimization Over the Stiefel Manifold by an Approximate Augmented Lagrangian Function
arXiv
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arXiv 2021年
作者: Wang, Lei Liu, Xin State Key Laboratory of Scientific and Engineering Computing Academy of Mathematics and Systems Science Chinese Academy of Sciences University of Chinese Academy of Sciences China
In this paper, we focus on the decentralized optimization problem over the Stiefel manifold, which is defined on a connected network of d agents. The objective is an average of d local functions, and each function is ... 详细信息
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Efficient Parallel Adaptive Computation of 3D Time-Harmonic Maxwell's Equations Using the Toolbox PHG
Efficient Parallel Adaptive Computation of 3D Time-Harmonic ...
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IEEE International Conference on High Performance computing and Communications (HPCC)
作者: Tao Cui State Key Laboratory of Scientific and Engineering Computing Institute of Computational Mathematics Academy of Mathematics and Systems Science Chinese Academy and Sciences Beijing China
PHG (parallel hierarchical grid) is a scalable parallel adaptive finite element toolbox under active developmentat the state key laboratory of scientific and engineering computing, Chinese Academy of Sciences. This pa... 详细信息
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The Convergence Properties of Infeasible Inexact Proximal Alternating Linearized Minimization
arXiv
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arXiv 2022年
作者: Hu, Yukuan Liu, Xin State Key Laboratory of Scientific and Engineering Computing Academy of Mathematics and Systems Science Chinese Academy of Sciences University of Chinese Academy of Sciences China
The proximal alternating linearized minimization method (PALM) suits well for solving blockstructured optimization problems, which are ubiquitous in real applications. In the cases where subproblems do not have closed... 详细信息
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A Variance-Reduced Stochastic Gradient Tracking Algorithm for Decentralized Optimization with Orthogonality Constraints
arXiv
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arXiv 2022年
作者: Wang, Lei Liu, Xin State Key Laboratory of Scientific and Engineering Computing Academy of Mathematics and Systems Science Chinese Academy of Sciences University of Chinese Academy of Sciences China
Decentralized optimization with orthogonality constraints is found widely in scientific computing and data science. Since the orthogonality constraints are nonconvex, it is quite challenging to design efficient algori... 详细信息
来源: 评论
Error bounded regular algebraic spline curves  99
Error bounded regular algebraic spline curves
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Proceedings of the fifteenth annual symposium on Computational geometry
作者: Chandrajit L. Bajaj Guoliang Xu Department of Computer Science University of Texas Austin TX State Key Laboratory of Scientific and Engineering Computing ICMSEC Chinese Academy of Sciences Beijing
来源: 评论
Parallelizable algorithms for optimization problems with orthogonality constraints
arXiv
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arXiv 2018年
作者: Gao, Bin Liu, Xin Yuan, Ya-Xiang State Key Laboratory of Scientific and Engineering Computing Academy of Mathematics and Systems Science Chinese Academy of Sciences University of Chinese Academy of Sciences China
To construct a parallel approach for solving optimization problems with orthogonality constraints is usually regarded as an extremely difficult mission, due to the low scalability of the orthonormalization procedure. ... 详细信息
来源: 评论