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Open AccessProceedings Article

Prioritized Experience Replay

TLDR
Prioritized experience replay as mentioned in this paper is a framework for prioritizing experience, so as to replay important transitions more frequently, and therefore learn more efficiently, achieving human-level performance across many Atari games.
Abstract
Experience replay lets online reinforcement learning agents remember and reuse experiences from the past. In prior work, experience transitions were uniformly sampled from a replay memory. However, this approach simply replays transitions at the same frequency that they were originally experienced, regardless of their significance. In this paper we develop a framework for prioritizing experience, so as to replay important transitions more frequently, and therefore learn more efficiently. We use prioritized experience replay in Deep Q-Networks (DQN), a reinforcement learning algorithm that achieved human-level performance across many Atari games. DQN with prioritized experience replay achieves a new state-of-the-art, outperforming DQN with uniform replay on 41 out of 49 games.

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Citations
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Variational Deep Q Network.

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Selective Replay Enhances Learning in Online Continual Analogical Reasoning

TL;DR: In this paper, the authors employ experience replay to mitigate catastrophic forgetting for analogical reasoning tasks, and find that selective replay can significantly outperform random selection for the RPM task, which is similar to our approach.
References
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