@article{JMLR:v18:16-596,
  author  = {Christophe Denis and Mohamed Hebiri},
  title   = {Confidence Sets with Expected Sizes for Multiclass Classification},
  journal = {Journal of Machine Learning Research},
  year    = {2017},
  volume  = {18},
  number  = {102},
  pages   = {1--28},
  url     = {http://jmlr.org/papers/v18/16-596.html}
}