About VON AHN Luis
About Carnegie Mellon Univ., PA, USA
About MAURER Benjamin
About Carnegie Mellon Univ., PA, USA
About MCMILLEN Colin
About Carnegie Mellon Univ., PA, USA
About ABRAHAM David
About Carnegie Mellon Univ., PA, USA
About BLUM Manuel
About Carnegie Mellon Univ., PA, USA
About Science
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About Web(information system)
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About measure
About OCR
About data conversion
About signal conversion
About word
About accuracy
About CAPTCHA
About Web site
About Webセキュリティ
About セキュリティ測度
About digitalization
About transcription
About Pattern recognition
About Data protection
About Web
About セキュリティ
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About 人間
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