Convex Quadratic Mixed-Integer Problems with Quadratic Constraints

Convex Quadratic Mixed-Integer Problems with Quadratic Constraints
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具有二次约束的凸二次混合整数问题

DOI:
10.1007/978-3-030-48439-2_15
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发表时间:
2019
期刊:
影响因子:
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通讯作者:
M. Herty
M. Herty
中科院分区:
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文献类型:
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作者:
S. Göttlich;K. Hameister;M. Herty

文献摘要

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凸二次混合整数优化的有效数值处理提出了一个具有挑战性的问题。因此,我们引入一种基于凸问题的对偶原理的方法来导出合适的下界,该下界可用于选择分支定界树内要解决的下一个节点。数值结果表明,与基准求解器相比,新边界可以非常有效地评估树搜索。
The efficient numerical treatment of convex quadratic mixed-integer optimization poses a challenging problem. Therefore, we introduce a method based on the duality principle for convex problems to derive suitable lower bounds that can used to select the next node to be solved within the branch-and-bound tree. Numerical results indicate that the new bounds allow the tree search to be evaluated quite efficiently compared to benchmark solvers.