David R. Karger, Sewoong Oh, Devavrat Shah. Efficient crowdsourcing for multi-class labeling. In Mor Harchol-Balter, John R. Douceur, Jun Xu, editors, ACM SIGMETRICS / International Conference on Measurement and Modeling of Computer Systems, SIGMETRICS '13, Pittsburgh, PA, USA, June 17-21, 2013. pages 81-92, ACM, 2013. [doi]
Abstract is missing.