Estimating Risk and Uncertainty in Deep Reinforcement Learning

William R. Clements, Bastien Van Delft, Benoît-Marie Robaglia, Reda Bahi Slaoui, Sébastien Toth
5/23/2019
cs.LGcs.AIstat.ML

Official code: IndustAI/risk-and-uncertainty (11 stars, MIT, last commit 2023-10-03).

Abstract

Reinforcement learning agents are faced with two types of uncertainty. Epistemic uncertainty stems from limited data and is useful for exploration, whereas aleatoric uncertainty arises from stochastic environments and must be accounted for in risk-sensitive applications. We highlight the challenges involved in simultaneously estimating both of them, and propose a framework for disentangling and estimating these uncertainties on learned Q-values. We derive unbiased estimators of these uncertainties and introduce an uncertainty-aware DQN algorithm, which we show exhibits safe learning behavior and outperforms other DQN variants on the MinAtar testbed.

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MIT

Code associated with our paper "Estimating Risk and Uncertainty in Reinforcement Learning"

114Python, Jupyter NotebookFeb 14, 20203 years agoMIT

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Cite this paper

@article{clements2019estimating,
  title  = {Estimating Risk and Uncertainty in Deep Reinforcement Learning},
  author = {William R. Clements and Bastien Van Delft and Benoît-Marie Robaglia and Reda Bahi Slaoui and Sébastien Toth},
  year   = {2019},
  eprint = {1905.09638},
  archivePrefix = {arXiv},
  url    = {https://arxiv.org/abs/1905.09638}
}

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