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2
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70349162567
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Using Hard AI Problems for security by Luis Von Ahn, Manuel Blum, Nicholas J
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CAPTCHA:, Carnegie Mellon University, Pittsburgh, PA 15213, USA
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CAPTCHA: Using Hard AI Problems for security by Luis Von Ahn, Manuel Blum, Nicholas J. Hopper and John Langford - Computer Science Dept., Carnegie Mellon University, Pittsburgh, PA 15213, USA
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Hopper and John Langford - Computer Science Dept
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3
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70349152750
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Filtering Short Message Spam of Group Sending Using CAPTCHA by PeizhouHe Young Sun Wei Zheng Xiangming Wen. Beijing Univ of Posts and Telecomm. Beijing: Knowledge discovery and Data Mining 2008, WKDD 2008, International Workshop
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Filtering Short Message Spam of Group Sending Using CAPTCHA by PeizhouHe Young Sun Wei Zheng Xiangming Wen. Beijing Univ of Posts and Telecomm. Beijing: Knowledge discovery and Data Mining 2008, WKDD 2008, International Workshop
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4
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2942728016
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Telling humans and computer apart automatically
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Luis von Ahn, Manuel Blum and John Langford. Telling humans and computer apart automatically. Communications of ACM 47:5660, 2004.
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Communications of ACM
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Luis von Ahn, M.B.1
Langford, J.2
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5
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4243538342
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Method for selectively restricting access to computer systems,
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February 27, U. S. Patent No. 6,195,698
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Mark D. Lillibridge, Martin Abadi, Krishna Bharat, and Andrei Z. Broder. Method for selectively restricting access to computer systems, February 27 2001. U. S. Patent No. 6,195,698.
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(2001)
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Lillibridge, M.D.1
Abadi, M.2
Bharat, K.3
Broder, A.Z.4
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7
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70349147954
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POSH: A generalized CAPTCHA with security applications by Waseem S. Daher. Massachusetts Institute of Technology. http://creativecommons.org/ licenses/by/3.0/ or Creative Commons, 559 Nathan Abbott Way, Stanford, CA 94305.
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POSH: A generalized CAPTCHA with security applications by Waseem S. Daher. Massachusetts Institute of Technology. http://creativecommons.org/ licenses/by/3.0/ or Creative Commons, 559 Nathan Abbott Way, Stanford, CA 94305.
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8
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70349101424
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Philip Brighten Godfrey. Text-Based CAPTCHA algorithms. In First Workshop on Human Interactive Proofs, Unpublished Manuscript. 2002. http://www.aladdin. cs.cmu.edu/hips/events/abs/godfreyb-abstract.pdf.
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Philip Brighten Godfrey. Text-Based CAPTCHA algorithms. In First Workshop on Human Interactive Proofs, Unpublished Manuscript. 2002. http://www.aladdin. cs.cmu.edu/hips/events/abs/godfreyb-abstract.pdf.
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9
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85009247912
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A reverse turing test using speech
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Denver, Colorado
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Shih Chilin, Greg Kochanski and Daniel Lopresti. A reverse turing test using speech. In International Conference on Spoken Language Processing, pages 1357-1360, Denver, Colorado, 2002.
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International Conference on Spoken Language Processing
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Shih, C.1
Kochanski, G.2
Lopresti, D.3
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10
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70349117037
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Luis von Ahn. Re-CAPTCHA. http://www.recaptcha.net, 2007.
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Luis von Ahn. Re-CAPTCHA. http://www.recaptcha.net, 2007.
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Secure Human-Computer Identification (Interface) Systems against Peeping Attacks: SecHCI. Cryptology ePrint Archive
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Report 2005/268
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Shujun Li and Heung-Yeung Shum. Secure Human-Computer Identification (Interface) Systems against Peeping Attacks: SecHCI. Cryptology ePrint Archive, Report 2005/268, 2005. http://eprint.iacr.org.
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(2005)
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Li, S.1
Shum, H.-Y.2
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