@article{activereinforcementlearningobserving,
  title = {Active Reinforcement Learning: Observing Rewards at a Cost},
  author = {David Krueger and Jan Leike and Owain Evans and John Salvatier},
  year = {2020},
  eprint = {2011.06709},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2011.06709v2},
}