CAPTCHA: Using Hard AI Problems For Security Luis von Ahn1 , Manuel Blum1 , Nicholas J. Hopper1 , and John Langford2 1 Computer Science Dept., Carnegie Mellon University, Pittsburgh PA 15213, USA

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Date: 2003-09-18 19:47:10 Computational neuroscience Human-based computation Complexity classes CAPTCHA Computer security Computer vision Internet bot Turing test Artificial general intelligence Luis von Ahn Artificial intelligence NP		CAPTCHA: Using Hard AI Problems For Security Luis von Ahn1 , Manuel Blum1 , Nicholas J. Hopper1 , and John Langford2 1 Computer Science Dept., Carnegie Mellon University, Pittsburgh PA 15213, USA Add to Reading List Source URL: hunch.net Download Document from Source Website File Size: 180,55 KB Share Document on Facebook

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