@article{JMLR:v13:el-yaniv12a,
  author  = {Ran El-Yaniv and Yair Wiener},
  title   = {Active Learning via Perfect Selective Classification},
  journal = {Journal of Machine Learning Research},
  year    = {2012},
  volume  = {13},
  number  = {9},
  pages   = {255--279},
  url     = {http://jmlr.org/papers/v13/el-yaniv12a.html}
}