Robust Secretary and Prophet Algorithms for Packing Integer Programs
Robust Secretary and Prophet Algorithms for Packing Integer Programs
复制标题
用于打包整数程序的鲁棒秘书和先知算法
DOI:
10.1137/1.9781611977073.53
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Singla, Sahil
中科院分区:
文献类型:
--
作者:
Argue, C. J.;Gupta, Anupam;Molinaro, Marco;Singla, Sahil
We study the problem of solving Packing Integer Programs (PIPs) in the online setting, where columns in [0, 1]dof the constraint matrix are revealed sequentially, and the goal is to pick a subset of the columns that sum to at mostBin each coordinate while maximizing the objective. Excellent results are known in the secretary setting, where the columns are adversarially chosen, but presented in a uniformly random order. However, these existing algorithms are susceptible to adversarial attacks: they try to “learn” characteristics of a good solution, but tend to over-fit to the model, and hence a small number of adversarial corruptions can cause the algorithm to fail.In this paper, we give the first robust algorithms for Packing Integer Programs, specifically in the recently proposed Byzantine Secretary framework [BGSZ20]. Our techniques are based on a two-level use of online learning, to robustly learn an approximation to the optimal value, and then to use this robust estimate to pick a good solution. These techniques are general and we use them to design robust algorithms for PIPs in the prophet model as well, specifically in the Prophet-with-Augmentations framework [ISW20]. We also improve known results in the Byzantine Secretary framework: we make the non-constructive results algorithmic and improve the existing bounds for single-item and matroid constraints.
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影响因子:
2.3
作者:
E. Samuel-Cahn
通讯作者:
E. Samuel-Cahn
DOI:
10.1145/3313276.3316313
发表时间:
2018
期刊:
Proceedings of the 51st Annual ACM SIGACT Symposium on Theory of Computing
影响因子:
--
作者:
N. Bansal
通讯作者:
N. Bansal
DOI:
--
发表时间:
2020
期刊:
International Colloquium on Automata, Languages and Programming
影响因子:
--
作者:
Paritosh Garg;S. Kale;Lars Rohwedder;O. Svensson
通讯作者:
O. Svensson
DOI:
10.1137/1.9781611973730.79
发表时间:
2014-04
期刊:
Math. Oper. Res.
影响因子:
--
作者:
Moran Feldman;O. Svensson;R. Zenklusen
通讯作者:
Moran Feldman;O. Svensson;R. Zenklusen
DOI:
--
发表时间:
2020
期刊:
Beyond the Worst-Case Analysis of Algorithms
影响因子:
--
作者:
Anupam Gupta;Sahil Singla
通讯作者:
Sahil Singla