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arXiv 1701.04055math.OCcs.DM
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内生不确定性随机规划的二元决策图情景集结

Scenario Aggregation using Binary Decision Diagrams for Stochastic Programs with Endogenous Uncertainty

Utz-Uwe Haus, Carla Michini, Marco Laumanns

摘要:

在随机规划中对决策相关的场景概率进行建模是困难的,并且通常会导致非常难以求解的大且高度非线性的MINLP。在本文中,我们开发了一种新的方法来获得一个紧凑的表示的追索功能使用一组二进制决策图(BDD),编码的嵌套覆盖的场景集。由此产生的BDD然后可以被用来有效地表征决策相关的情况下的概率由一组线性不等式,这基本上是因式分解的概率分布,从而允许重新制定整个问题作为一个小的混合整数线性规划。该方法适用于一个大类的随机规划与多变量二进制场景集,如随机网络设计,网络可靠性,或随机网络阻断问题。计算结果表明,基于BDD的场景表示减少了问题的大小,因此,计算时间,显着相比,以前的方法。

英文摘要:

Modeling decision-dependent scenario probabilities in stochastic programs is difficult and typically leads to large and highly non-linear MINLPs that are very difficult to solve. In this paper, we develop a new approach to obtain a compact representation of the recourse function using a set of binary decision diagrams (BDDs) that encode a nested cover of the scenario set. The resulting BDDs can then be used to efficiently characterize the decision-dependent scenario probabilities by a set of linear inequalities, which essentially factorizes the probability distribution and thus allows to reformulate the entire problem as a small mixed-integer linear program. The approach is applicable to a large class of stochastic programs with multivariate binary scenario sets, such as stochastic network design, network reliability, or stochastic network interdiction problems. Computational results show that the BDD-based scenario representation reduces the problem size, and hence the computation time, significant compared to previous approaches.

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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