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arXiv 1906.02883math.OC
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随机性约束线搜索法的自适应步长策略

Adaptive Step Size Strategy for Orthogonality Constrained Line Search Methods

Xiaoying Dai, Liwei Zhang, Aihui Zhou

摘要:

针对一类正交约束极小化问题的线搜索法,提出了一种自适应步长策略,避免了经典的回溯过程。在适当的假设条件下,证明了采用自适应步长策略的线搜索法的收敛性,并将其应用于电子结构计算,结果表明该策略是有效的,值得推荐.

英文摘要:

In this paper, we propose an adaptive step size strategy for a class of line search methods for orthogonality constrained minimization problems, which avoids the classic backtracking procedure. We prove the convergence of the line search methods equipped with our adaptive step size strategy under some mild assumptions.We then apply the adaptive algorithm to electronic structure calculations, which show that our strategy is efficient and recommended.

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