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arXiv 2006.07568math.OCcs.LGcs.NAmath.DSmath.NA
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带噪声数据的线性规划的原对偶路径跟踪方法及置信域更新策略

Primal-dual path-following methods and the trust-region updating strategy for linear programming with noisy data

School of Artificial Intelligence, Beijing University of Posts and Telecommunications(北京邮电大学人工智能学院)

Xin-long Luo, Yi-yan Yao

摘要:

本文研究了标准线性规划问题的原始-对偶路径跟踪方法和置信域更新策略。对于小噪声数据的秩亏问题,给出了基于列主元QR分解的预处理方法。在初始点严格原始-对偶可行的条件下,证明了新方法的整体收敛。最后,对于一些秩亏的问题,或没有小的噪声数据从NETLIB收集,我们比较它与其他两个流行的相邻点的方法,即子程序pathfollow.m和MATLAB环境中内置的子程序linprog.m。数值结果表明,对于小噪声数据的秩亏问题,新方法比其他两种方法具有更好的鲁棒性。

英文摘要:

In this article, we consider the primal-dual path-following method and the trust-region updating strategy for the standard linear programming problem. For the rank-deficient problem with the small noisy data, we also give the preprocessing method based on the QR decomposition with column pivoting. Then, we prove the global convergence of the new method when the initial point is strictly primal-dual feasible. Finally, for some rank-deficient problems with or without the small noisy data from the NETLIB collection, we compare it with other two popular interior-point methods, i.e. the subroutine pathfollow.m and the built-in subroutine linprog.m of the MATLAB environment. Numerical results show that the new method is more robust than the other two methods for the rank-deficient problem with the small noise data.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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