Two-stage linear decision rules for multi-stage stochastic programming
Two-stage linear decision rules for multi-stage stochastic programming
复制标题
多阶段随机规划的两阶段线性决策规则
DOI:
10.1007/s10107-018-1339-4
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发表时间:
2018
影响因子:
2.7
通讯作者:
Luedtke, James R.
中科院分区:
文献类型:
--
作者:
Bodur, Merve;Luedtke, James R.
Multi-stage stochastic linear programs (MSLPs) are notoriously hard to solve in general. Linear decision rules (LDRs) yield an approximation of an MSLP by restricting the decisions at each stage to be an affine function of the observed uncertain parameters. Finding an optimal LDR is a static optimization problem that provides an upper bound on the optimal value of the MSLP, and, under certain assumptions, can be formulated as an explicit linear program. Similarly, as proposed by Kuhn et al. (Math Program 130(1):177–209, 2011) a lower bound for an MSLP can be obtained by restricting decisions in the dual of the MSLP to follow an LDR. We propose a new approximation approach for MSLPs,two-stage LDRs. The idea is to require only the state variables in an MSLP to follow an LDR, which is sufficient to obtain an approximation of an MSLP that is atwo-stage stochastic linear program(2SLP). We similarly propose to apply LDR only to a subset of the variables in the dual of the MSLP, which yields a 2SLP approximation of the dual that provides a lower bound on the optimal value of the MSLP. Although solving the corresponding 2SLP approximations exactly is intractable in general, we investigate how approximate solution approaches that have been developed for solving 2SLP can be applied to solve these approximation problems, and derive statistical upper and lower bounds on the optimal value of the MSLP. In addition to potentially yielding better policies and bounds, this approach requires many fewer assumptions than are required to obtain an explicit reformulation when using the standard static LDR approach. A computational study on two example problems demonstrates that using a two-stage LDR can yield significantly better primal policies and modestly better dual policies than using policies based on a static LDR.
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影响因子:
2.1
作者:
O. Dowson;L. Kapelevich
通讯作者:
L. Kapelevich
DOI:
--
发表时间:
1975
期刊:
影响因子:
--
作者:
M. Eisner;Paul Olsen
通讯作者:
Paul Olsen
DOI:
10.1137/140983136
发表时间:
2014-08
期刊:
SIAM J. Optim.
影响因子:
--
作者:
V. Guigues
通讯作者:
V. Guigues
影响因子:
2.7
作者:
J. Birge;Christopher J. Donohue;Derek F. Holmes;Oleg G. Svintsitski
通讯作者:
Oleg G. Svintsitski
影响因子:
2.7
作者:
M. Koivu
通讯作者:
M. Koivu