Luis von Ahn, Mihir Kedia, Manuel Blum. Verbosity: a game for collecting common-sense facts. In Rebecca E. Grinter, Tom Rodden, Paul M. Aoki, Edward Cutrell, Robin Jeffries, Gary M. Olson, editors, Proceedings of the 2006 Conference on Human Factors in Computing Systems, CHI 2006, Montréal, Québec, Canada, April 22-27, 2006. pages 75-78, ACM, 2006. [doi]
Abstract is missing.