UCB EXPLORATION VIA Q-ENSEMBLES

Richard Y. Chen, Szymon Sidor, Pieter Abbeel, John Schulman

Feb 12, 2018 (modified: Feb 15, 2018) ICLR 2018 Workshop Submission readers: everyone Show Bibtex
  • Abstract: We show how an ensemble of $Q^*$-functions can be leveraged for more effective exploration in deep reinforcement learning. We build on well established algorithms from the bandit setting, and adapt them to the $Q$-learning setting. We propose an exploration strategy based on upper-confidence bounds (UCB). Our experiments show significant gains on the Atari benchmark.
  • TL;DR: Adapting UCB exploration to ensemble Q-learning improves over prior methods such as Double DQN, A3C+ on Atari benchmark
  • Keywords: Reinforcement learning, Q-learning, ensemble method, upper confidence bound

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