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Telling humans and computers apart (automatically) : or how lazy cryptographers do AI

Author: Luis Von Ahn; Manuel Blum; John Langford
Publisher: Pittsburgh, Pa. : School of Computer Science, Carnegie Mellon University, [2002]
Series: Research paper (Carnegie Mellon University. School of Computer Science), CMU-CS-02-117.
Edition/Format:   Print book : English
Database:WorldCat
Summary:
Abstract: "We introduce the notion of a CAPTCHA: a program that can differentiate between humans and computers based only on interactions over a computer network."
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Document Type: Book
All Authors / Contributors: Luis Von Ahn; Manuel Blum; John Langford
OCLC Number: 49944224
Notes: "February 2002."
Description: 6 pages : illustrations ; 28 cm.
Series Title: Research paper (Carnegie Mellon University. School of Computer Science), CMU-CS-02-117.
Responsibility: Luis von Ahn, Manuel Blum, John Langford.

Abstract:

Abstract: "We introduce the notion of a CAPTCHA: a program that can differentiate between humans and computers based only on interactions over a computer network."

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