3min chapter

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#108 – Sergey Levine: Robotics and Machine Learning

Lex Fridman Podcast

CHAPTER

Off-Policy Data in Robotics Spaces

In reinforcement learning, we often refer to the current configuration of the world as the state. A policy is a model or some kind of function that maps from observations of the world to actions. Off-policy data might be much easier to obtain because maybe that's all the log of data that you have from before. One big challenge with off-policy reinforcement learning is that you can't really trust your models to give accurate predictions for any possible action.

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