Optimal Algorithms for Multiplayer Multi-Armed Bandits
Optimal Algorithms for Multiplayer Multi-Armed Bandits
复制标题
多人多臂强盗的最优算法
DOI:
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发表时间:
2019
期刊:
影响因子:
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通讯作者:
Alessio Russo
中科院分区:
文献类型:
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作者:
Po;A. Proutière;Kaito Ariu;Yassir Jedra;Alessio Russo
The paper addresses various Multiplayer Multi-Armed Bandit ( MMAB ) problems, where M decision-makers, or players, collaborate to maximize their cumulative reward. We first investigate the MMAB problem where players selecting the same arms experience a collision (and are aware of it) and do not collect any reward. For this problem, we present DPE1 (Decentralized Parsimonious Exploration), a decentralized algorithm that achieves the same asymptotic regret as that obtained by an optimal centralized algorithm. DPE1 is simpler than the state-of-the-art al-gorithm SIC-MMAB Boursier and Perchet (2019), and yet offers better performance guarantees. We then study the MMAB problem without collision, where players may select the same arm. Players sit on vertices of a graph, and in each round, they are able to send a message to their neighbours in the graph. We present DPE2 , a simple and asymptotically optimal algorithm that out-performs the state-of-the-art algorithm DD-UCB Mart´ınez-Rubio et al. (2019). Besides, under DPE2 , the expected number of bits transmitted by the players in the graph is finite.
DOI:
10.1109/cdc.2018.8619744
发表时间:
2018
期刊:
2018 IEEE Conference on Decision and Control
影响因子:
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作者:
Landgren, Peter;Srivastava, Vaibhav;Ehrich Leonard, Naomi
通讯作者:
Ehrich Leonard, Naomi