Revisiting Online Submodular Minimization: Gap-Dependent Regret Bounds, Best of Both Worlds and Adversarial Robustness
Revisiting Online Submodular Minimization: Gap-Dependent Regret Bounds, Best of Both Worlds and Adversarial Robustness
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重新审视在线子模最小化:间隙相关的遗憾界限、两全其美和对抗鲁棒性
DOI:
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发表时间:
2022
期刊:
影响因子:
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通讯作者:
Shinji Ito
中科院分区:
文献类型:
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作者:
Shinji Ito
In this paper, we consider online decision problems with submodular loss functions. For such problems, existing studies have only dealt with worst-case analysis. This study goes beyond worst-case analysis to show instance-dependent regret bounds. More precisely, for each of the full-information and bandit-feedback settings, we pro-pose an algorithm that achieves a gap-dependent O (log T ) -regret bound in the stochastic environment and is comparable to the best existing al-gorithm in the adversarial environment. The proposed algorithms also work well in the stochastic environment with adversarial corruptions, which is an intermediate setting between the stochastic and adversarial environments
DOI:
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发表时间:
2018
期刊:
31st Annual Conference on Learning Theory (COLT
影响因子:
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作者:
Roughgarden, Tim;Wang, Joshua R.
通讯作者:
Wang, Joshua R.
DOI:
10.1137/1.9781611975994.51
发表时间:
2020
期刊:
Symposium on Discrete Algorithms
影响因子:
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作者:
Axelrod, Brian;Liu, Yang P.;Sidford, Aaron
通讯作者:
Sidford, Aaron