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Luis von Ahn

Discover how Carnegie Mellon University's CAPTCHA verification technology is transforming online security and harnessing human effort for good. Learn about the development process and real-world applications of this groundbreaking tool.

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Luis von Ahn

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  1. Luis von Ahn Carnegie Mellon University

  2. “CAPTCHA” Verification technology developed in collaboration with Carnegie Mellon University

  3. “ Help! I’ve been waiting for 20 minutes, and nothing happens ” Verification technology developed in collaboration with Carnegie Mellon University

  4. Verification technology developed in collaboration with Carnegie Mellon University

  5. QUICKVOTE Which is the best Computer Science Grad School in the US? Berkeley MIT CMU Washington Cornell Stanford vote (From www.slashdot.org)

  6. Verification technology developed in collaboration with Carnegie Mellon University

  7. CAPTCHA Sweat Shops Spam companies hire humans to type CAPTCHAs all day long $2.50 per hour for each human 720 captchas per hour per human 1/3 cent per account

  8. VOTE FOR LUIS 2012

  9. Roughly 200 million CAPTCHAs are typed every day 10s of human time per CAPTCHA Can we use this human effort for good?

  10. Digitizing Books Scan OCR DE xi Ii ARIi.. COPBCtrAGE\, DeC. I l 1 QOn. Tlie royal palace at Frieclericheberg took fire last night. The li.ing himself directed the operations fns extinguishing the lire. The whole structure ,, ed.

  11. Word that OCR can’t read Scanned book Randomly distorted image of word

  12. Free

  13. Words Digitized Per Day

  14. Where do the Words Come From? Years 1851-1980 will be completed in 2009

  15. 400,000,000 (6% of the world’s population)

  16. www.recaptcha.net

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