Budgeted and Non-budgeted Causal Bandits
Budgeted and Non-budgeted Causal Bandits
复制标题
预算内和非预算的因果强盗
DOI:
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发表时间:
2020
期刊:
影响因子:
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通讯作者:
Gaurav Sinha
中科院分区:
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作者:
V. Nair;Vishakha Patil;Gaurav Sinha
Learning good interventions in a causal graph can be modelled as a stochastic multi-armed bandit problem with side-information. First, we study this problem when interventions are more expensive than observations and a budget is specified. If there are no backdoor paths from an intervenable node to the reward node then we propose an algorithm to minimize simple regret that optimally trades-off observations and interventions based on the cost of intervention. We also propose an algorithm that accounts for the cost of interventions, utilizes causal side-information, and minimizes the expected cumulative regret without exceeding the budget. Our cumulative-regret minimization algorithm performs better than standard algorithms that do not take side-information into account. Finally, we study the problem of learning best interventions without budget constraint in general graphs and give an algorithm that achieves constant expected cumulative regret in terms of the instance parameters when the parent distribution of the reward variable for each intervention is known. Our results are experimentally validated and compared to the best-known bounds in the current literature.
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发表时间:
2017
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作者:
Murat Kocaoglu;Karthikeyan Shanmugam;E. Bareinboim
通讯作者:
Murat Kocaoglu;Karthikeyan Shanmugam;E. Bareinboim
DOI:
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发表时间:
2018
期刊:
Advances in Neural Information Processing Systems 31
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作者:
Lee, Sanghack;Bareinboim, Elias
通讯作者:
Bareinboim, Elias
DOI:
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发表时间:
2020-05
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作者:
Raghavendra Addanki;S. Kasiviswanathan;A. Mcgregor;Cameron Musco
通讯作者:
Raghavendra Addanki;S. Kasiviswanathan;A. Mcgregor;Cameron Musco