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:
International Conference on Machine Learning
影响因子:
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通讯作者:
Shinji Ito
Shinji Ito
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文献类型:
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作者:
Shinji Ito

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本文研究了具有次模损失函数的在线决策问题。对于这类问题,现有的研究只涉及最坏情况的分析。这项研究超越了最坏情况下的分析,以显示实例依赖的遗憾界限。更确切地说,对于每一个完整的信息和bandit反馈设置,我们提出了一个算法,实现了一个间隙依赖的O(log T)-遗憾界在随机环境中,是可比的最好的现有的al-tax m在对抗环境。所提出的算法在具有对抗性破坏的随机环境中也能很好地工作,这是随机环境和对抗性环境之间的中间设置
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: --
发表时间: 2018
期刊: 31st Annual Conference on Learning Theory (COLT
影响因子: --
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: --
作者:
Axelrod, Brian;Liu, Yang P.;Sidford, Aaron
通讯作者: Sidford, Aaron