2022

The Challenges of Exploration for Offline Reinforcement Learning

Lambert, Nathan, Wulfmeier, Markus, Whitney, William et al.

Understand

Offline Reinforcement Learning (ORL) enablesus to separately study the two interlinked processes of reinforcement learning: collecting informative experience and inferring optimal behaviour.

  • The second step has been widely studied in the offline setting, but just as critical to data-efficient RL is the collection of informative data.
  • The task-agnostic setting for data collection, where the task is not known a priori, is of particular interest due to the possibility of collecting a single dataset and using it to solve several downstream tasks as they arise.
  • We investigate this setting via curiosity-based intrinsic motivation, a family of exploration methods which encourage the agent to explore those states or transitions it has not yet learned to model.

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