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Date: 2011-03-14 22:40:02Science ReCAPTCHA Luis von Ahn CAPTCHA Carnegie Mellon School of Computer Science Manuel Blum Carnegie Mellon University Carnegie Mellon Human Computer Interaction Institute ESP game Human-based computation Computing World Wide Web | Microsoft Word - CMU-RESUME[removed]docAdd to Reading ListSource URL: www.cs.cmu.eduDownload Document from Source WebsiteFile Size: 54,04 KBShare Document on Facebook |