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arXiv 1810.09243math.OC
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凸二次规划的约束约简MPC算法及改进的有效集识别方案

A Constraint-Reduced MPC Algorithm for Convex Quadratic Programming, with a Modified Active Set Identification Scheme

M. Paul Laiu, André L. Tits

摘要:

提出了一种求解凸二次规划的约束约简Mehrotra-Predictor-Corrector算法。(At每次迭代,这种算法在构造搜索方向时仅使用不等式约束的子集,从而节省CPU。)该算法利用正则化方案,以满足减少约束矩阵秩不足的情况下。在满足一般性条件的任意工作集选择规则下,建立了全局和局部收敛性质。一个修改的活动集识别计划,满足这一条件。数值试验表明,所提出的算法,特别是其有效集识别方案的巨大潜力。虽然本文件的重点是密集系统,应用的主要思想,大型稀疏系统进行了简要讨论。

英文摘要:

A constraint-reduced Mehrotra-Predictor-Corrector algorithm for convex quadratic programming is proposed. (At each iteration, such algorithms use only a subset of the inequality constraints in constructing the search direction, resulting in CPU savings.) The proposed algorithm makes use of a regularization scheme to cater to cases where the reduced constraint matrix is rank deficient. Global and local convergence properties are established under arbitrary working-set selection rules subject to satisfaction of a general condition. A modified active-set identification scheme that fulfills this condition is introduced. Numerical tests show great promise for the proposed algorithm, in particular for its active-set identification scheme. While the focus of the present paper is on dense systems, application of the main ideas to large sparse systems is briefly discussed.

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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