@inproceedings{positiveunlabeledlearningwithnonnegative,
  title = {Positive-Unlabeled Learning with Non-Negative Risk Estimator},
  author = {Ryuichi Kiryo and Gang Niu and Marthinus C. Du Plessis and Masashi Sugiyama},
  year = {2017},
  booktitle = {NeurIPS 2017 12},
  eprint = {1703.00593},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1703.00593v2},
}