@conference {Gao_aaai12,
	title = {Quality Expectation-Variance Tradeoffs in Crowdsourcing Contests},
	booktitle = {Proceedings of the 26th AAAI Conference on Artificial Intelligence (AAAI {\textquoteright}12)},
	year = {2012},
	url = {http://econcs.seas.harvard.edu/files/econcs/files/gao_aaai12.pdf},
	author = {Xi Alice Gao and Yoram Bachrach and Peter Key and Thore Graepel}
}
