@InProceedings{J.Komiyama:2016,
  author = {J. Komiyama, J. Honda, and H. Nakagawa},
  title = {Copeland Dueling Bandit Problem: Regret Lower Bound, Optimal Algorithm, and Computationally Efficient Algorithm},
  booktitle = {Proceedings of the 33rd International Conference on Machine Learning (ICML 2016)},
  year      = {2016},
  address   = {New York City, United States},
}