@Article{J.Komiyama:2017,
  author = {J. Komiyama, J. Honda, and A. Takeda},
  title = { Position-based Multiple-play Multi-armed Bandit Problem with Unknown Position Bias},
  booktitle = { Proceedings of the 31st Neural Information Processing Systems (NIPS 2017)},
  year      = {2017},
  address   = {Long Beach, United States},
}