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检索条件"主题词=Multilevel Algorithms"
45 条 记 录,以下是11-20 订阅
排序:
multilevel OPTIMAL TRANSPORT: A FAST APPROXIMATION OF WASSERSTEIN-1 DISTANCES
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SIAM JOURNAL ON SCIENTIFIC COMPUTING 2021年 第1期43卷 A193-A220页
作者: Liu, Jialin Yin, Wotao Li, Wuchen Chow, Yat Tin Univ Calif Los Angeles Dept Math Los Angeles CA 90095 USA Univ Calif Riverside Math Riverside CA 92521 USA
We propose a fast algorithm for the calculation of the Wasserstein-1 distance, which is a particular type of optimal transport distance with transport cost homogeneous of degree one. Our algorithm is built on multilev... 详细信息
来源: 评论
Evolutionary n-Level Hypergraph Partitioning With Adaptive Coarsening
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IEEE TRANSACTIONS ON EVOLUTIONARY COMPUTATION 2019年 第6期23卷 962-971页
作者: Preen, Richard J. Smith, Jim Univ West England Dept Comp Sci & Creat Technol Bristol BS16 1QY Avon England
Hypergraph partitioning (HGP) is an NP-hard problem that occurs in many computer science applications where it is necessary to reduce large problems into a number of smaller, computationally tractable subproblems. Cur... 详细信息
来源: 评论
RELAXATION-BASED COARSENING FOR multilevel HYPERGRAPH PARTITIONING
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MULTISCALE MODELING & SIMULATION 2019年 第1期17卷 482-506页
作者: Shaydulin, Ruslan Chen, Jie Safro, Ilya Clemson Univ Sch Comp Clemson SC 29631 USA Thomas J Watson Res Ctr IBM Yorktown Hts NY 10598 USA
multilevel partitioning methods that are inspired by principles of multiscaling are the most powerful practical hypergraph partitioning solvers. Hypergraph partitioning has many applications in disciplines ranging fro... 详细信息
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MULTIGRID METHODS FOR DISCRETE FRACTIONAL SOBOLEV SPACES
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SIAM JOURNAL ON SCIENTIFIC COMPUTING 2019年 第2期41卷 A948-A972页
作者: Baerland, Trygve Kuchta, Miroslav Mardal, Kent-andre Univ Oslo Dept Math N-0316 Oslo Norway
Coupled multiphysics problems often give rise to interface conditions naturally formulated in fractional Sobolev spaces. Here, both positive and negative fractionality are common. When designing efficient solvers for ... 详细信息
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A Class of Symmetric Factored Approximate Inverses and Hybrid Two-Level Solver
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INTERNATIONAL JOURNAL OF COMPUTATIONAL METHODS 2018年 第6期15卷
作者: Kyziropoulos, Panagiotis E. Filelis-Papadopoulos, Christos K. Gravvanis, George A. Democritus Univ Thrace Sch Engn Dept Elect & Comp Engn Univ Campus GR-67100 Xanthi Greece
A new class of symmetric factored approximate inverses is proposed and used in conjunction with the Preconditioned Conjugate Gradient method for solving sparse symmetric linear systems. Additionally, a new hybrid two-... 详细信息
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Accelerated Randomized vs. Deterministic algorithms for MoM Blocks' Low-Rank Factorization
Accelerated Randomized vs. Deterministic Algorithms for MoM ...
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International Symposium of IEEE-Antennas-and-Propagation-Society / USNC/URSI National Radio Science Meeting
作者: Brick, Yaniv Yilmaz, Ali E. Univ Texas Austin Inst Computat Engn & Sci Austin TX 78712 USA
A randomized and a deterministic algorithm for the fast computation of impedance matrix blocks' low-rank factorization are contrasted. The deterministic algorithm is based on multilevel compression of non-uniforml... 详细信息
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The regulatory algorithm (RGA): a two-dimensional extension of evolutionary algorithms
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SOFT COMPUTING 2016年 第5期20卷 2067-2075页
作者: Kluever, Juergen Kluever, Christina Univ Duisburg Essen Univ Str 12 D-45117 Essen Germany
In orientation to new developments in evolutionary biology we propose an extension of evolutionary algorithms in two dimensions, the regulatory algorithm (RGA). It consists of two levels of vectors, the regulatory vec... 详细信息
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Low-Rank Approximation of Impedance Matrix Blocks Using Non-uniform Sampling Methods
Low-Rank Approximation of Impedance Matrix Blocks Using Non-...
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IEEE International Symposium on Antennas and Propagation / USNC-URSI Radio Science Meeting
作者: Brick, Yaniv Yilmaz, Ali E. Univ Texas Austin Inst Computat Engn & Sci Austin TX 78712 USA
Two physics-based rank-revealing multilevel algorithms are presented to efficiently compute impedance matrix blocks' low-rank representations. Both algorithms rely on non-uniform sampling of phase-and amplitude-co... 详细信息
来源: 评论
multilevel Physical Optics Algorithm for Near Field Scattering
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IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION 2014年 第8期62卷 4325-4335页
作者: Gendelman, Alex Brick, Yaniv Boag, Amir Tel Aviv Univ Sch Elect Engn IL-69978 Tel Aviv Israel
An algorithm for the fast computation of the physical optics (PO) integral describing single bounce back scattering in near-field scenarios is presented. The algorithm is based on a multilevel computation of partial c... 详细信息
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Infinite-Dimensional Integration in Weighted Hilbert Spaces: Anchored Decompositions, Optimal Deterministic algorithms, and Higher-Order Convergence
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FOUNDATIONS OF COMPUTATIONAL MATHEMATICS 2014年 第5期14卷 1027-1077页
作者: Dick, Josef Gnewuch, Michael Univ New S Wales Sch Math & Stat Sydney NSW 2052 Australia
We study the numerical integration of functions depending on an infinite number of variables. We provide lower error bounds for general deterministic algorithms and provide matching upper error bounds with the help of... 详细信息
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