Poster
Coordinated Exploration in Concurrent Reinforcement Learning
Maria Dimakopoulou · Benjamin Van Roy

Wed Jul 11th 06:15 -- 09:00 PM @ Hall B #107

We consider a team of reinforcement learning agents that concurrently learn to operate in a common environment. We identify three properties - adaptivity, commitment, and diversity - which are necessary for efficient coordinated exploration and demonstrate that straightforward extensions to single-agent optimistic and posterior sampling approaches fail to satisfy them. As an alternative, we propose seed sampling, which extends posterior sampling in a manner that meets these requirements. Simulation results investigate how per-agent regret decreases as the number of agents grows, establishing substantial advantages of seed sampling over alternative exploration schemes.

Author Information

Maria Dimakopoulou (Stanford)
Benjamin Van Roy (Stanford University)

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