@inproceedings{agnosticactivelearningwithoutconstraints,
  title = {Agnostic Active Learning Without Constraints},
  author = {Alina Beygelzimer and Daniel J. Hsu and John Langford and Tong Zhang},
  year = {2010},
  booktitle = {NeurIPS 2010 12},
  url = {http://papers.nips.cc/paper/4014-agnostic-active-learning-without-constraints},
}