@article{aprilactivepreferencelearningbased,
  title = {APRIL: Active Preference-learning based Reinforcement Learning},
  author = {Riad Akrour and Marc Schoenauer and Michèle Sebag},
  year = {2012},
  eprint = {1208.0984},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1208.0984v1},
}