@article{JMLR:v17:15-642,
  author  = {Nihar B. Shah and Dengyong Zhou},
  title   = {Double or Nothing: Multiplicative Incentive Mechanisms for Crowdsourcing},
  journal = {Journal of Machine Learning Research},
  year    = {2016},
  volume  = {17},
  number  = {165},
  pages   = {1--52},
  url     = {http://jmlr.org/papers/v17/15-642.html}
}