@conference {mao_hcomp12, title = {TurkServer: Enabling Synchronous and Longitudinal Online Experiments}, booktitle = {Proceedings of the Fourth Workshop on Human Computation (HCOMP-12)}, year = {2012}, url = {http://econcs.seas.harvard.edu/files/econcs/files/mao_hcomp12.pdf}, author = {Andrew Mao and Yiling Chen and Krzysztof Z. Gajos and David C. Parkes and Ariel D. Procaccia and Haoqi Zhang} }