首页> 外文OA文献 >Robust solutions of uncertain mixed-integer linear programs using decomposition techniques
【2h】

Robust solutions of uncertain mixed-integer linear programs using decomposition techniques

机译:不确定混合整数线性规划的鲁棒解   分解技术

摘要

Robust optimization is a framework for modeling optimization problemsinvolving data uncertainty and during the last decades has been an area ofactive research. If we focus on linear programming (LP) problems with i)uncertain data, ii) binary decisions and iii) hard constraints within anellipsoidal uncertainty set, this paper provides a different interpretation oftheir robust counterpart (RC) inspired from decomposition techniques. This newinterpretation allows the proposal of an ad-hoc decomposition technique tosolve the RC problem with the following advantages: i) it improvestractability, specially for large-scale problems, and ii) it provides the exactprobability of constraint violation in case the probability distribution ofuncertain parameters are completely defined by using first and second-orderprobability moments. An attractive aspect of our method is that it decomposesthe second-order cone programming problem, associated with the robustcounterpart, into a linear master problem and different quadraticallyconstrained problems (QCP) of considerable lower size. The optimal solution isachieved through the solution of these master and subproblems within aniterative scheme based on cutting plane approximations of the second-order coneconstraints. In addition, proof of convergence of the iterative method isgiven.
机译:稳健的优化是用于建模涉及数据不确定性的优化问题的框架,并且在过去的几十年中一直是活跃的研究领域。如果我们关注具有不确定数据,ii)二进制决策和iii)椭球不确定性集合内的硬约束的线性规划(LP)问题,则本文将对它们的鲁棒对应(RC)进行不同的解释,以分解技术为依据。这种新的解释允许提出一种特殊的分解技术来解决RC问题,具有以下优点:i)提高了可伸缩性,特别是针对大型问题,并且ii)在不确定参数的概率分布的情况下,它提供了违反约束的确切概率。通过使用一阶和二阶概率矩来完全定义。我们方法的一个吸引人的方面是,它将与鲁棒对口相关联的二阶锥规划问题分解为线性主问题和大小较小的不同二次约束问题(QCP)。通过基于二阶圆锥约束的切面近似,通过反演方案中的这些主问题和子问题的解决方案,可以获得最优解。另外,给出了迭代方法收敛性的证明。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号