@inproceedings{tradingoffmistakesanddontknow,
  title = {Trading off Mistakes and Don't-Know Predictions},
  author = {Amin Sayedi and Morteza Zadimoghaddam and Avrim Blum},
  year = {2010},
  booktitle = {NeurIPS 2010 12},
  url = {http://papers.nips.cc/paper/4142-trading-off-mistakes-and-dont-know-predictions},
}