Crowdsourcing systems on the World-Wide Web

Anhai Doan, Raghu Ramakrishnan, Alon Y. Halevy
2011 Communications of the ACM  
articles social systems, social search, social media, collective intelligence, wikinomics, crowd wisdom, smart mobs, mass collaboration, and human computation. The topic has been discussed extensively in books, popular press, and academia. 1, 5, 15, 23, 29, 35 But this body of work has considered mostly efforts in the physical world. 23, 29, 30 ome do consider crowdsourcing systems on the Web, but only certain system types 28, 33 or challenges (for example, how to evaluate users 12 ). This
more » ... y attempts to provide a global picture of crowdsourcing systems on the Web. We define and classify such systems, then describe a broad sample of systems. The sample
doi:10.1145/1924421.1924442 fatcat:mat7zrvur5crfh4kfxffcwqooq