Yu'e Song, Chengguo Wang, Ling Zhu, Xiaofeng Chen, Qiyu Zhang. The Design and Implementation of Online Identification of CAPTCHA Based on the Knowledge Base. In Daoliang Li, Zhenbo Li, editors, Computer and Computing Technologies in Agriculture IX - 9th IFIP WG 5.14 International Conference, CCTA 2015, Beijing, China, September 27-30, 2015, Revised Selected Papers, Part II. Volume 479 of IFIP Advances in Information and Communication Technology, pages 92-99, 2015. [doi]
Abstract is missing.