@article{abstainingclassificationwhenerrorcosts,
  title = {Abstaining Classification When Error Costs are Unequal and Unknown},
  author = {Hongjiao Guan and Yingtao Zhang and H. D. Cheng and Xianglong Tang},
  year = {2018},
  eprint = {1806.03445},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1806.03445v2},
}