TagCaptcha: annotating images with CAPTCHAs

Donn Morrison, Stéphane Marchand-Maillet, Eric Bruno. TagCaptcha: annotating images with CAPTCHAs. In Paul N. Bennett, Raman Chandrasekar, Max Chickering, Panagiotis G. Ipeirotis, Edith Law, Anton Mityagin, Foster J. Provost, Luis von Ahn, editors, Proceedings of the ACM SIGKDD Workshop on Human Computation, Paris, France, June 28, 2009. pages 44-45, ACM, 2009. [doi]

Possibly Related Publications

The following publications are possibly variants of this publication: