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Accelerating randomized surrounding method with momentum for consistent linear systems

delete2025-09-13
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PRE
AI
X
Xiang-Xiang Chen
K
Ke Zhang *
DOI:10.1007/s00025-025-02518-ydelete
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Abstract

Abstract

En 中文
The recently proposed restarted randomized surrounding algorithm improves the performance of the original randomized surrounding method by incorporating a restarting strategy. In this work, we introduce a fast restarted randomized surrounding algorithm that further accelerates convergence by integrating Polyak momentum. Compared to its predecessor, the proposed algorithm reduces the number of required iterations while maintaining nearly the same computational cost per iteration. We provide a rigorous convergence analysis to characterize the convergence rate of the proposed method. Numerical experiments demonstrate that the new algorithm outperforms existing reflection-based methods in both iteration count and total runtime.
Keywords:
Consistent linear system
Surrounding method
Polyak momentum
Kaczmarz algorithm
Randomized algorithm

Journal

R
Results in Mathematics
IF:
1.2
Papers:
157
Citations:
0

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Cited Papers

Cited Papers

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The SuiteSparse Matrix Collection Website Interface
err2019-03-10
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errScott Kolodziej; Mohsen Aznaveh; Matthew Bullock; Jarrett David; Timothy Davis; Matthew Henderson; Yifan Hu; Read Sandstrom
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