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Massive-scale online collaboration | Luis von Ahn

TED · talk · Watch on YouTube

Futurism & technology and societyComputer vision, speech & NLPIdeas & learning (other)

What it is

Luis von Ahn, creator of CAPTCHA and reCAPTCHA, explains how small contributions from many people online can digitize books. He then introduces Duolingo as a way to translate the web while people learn languages.

Why Hacker News recommends it

HN commenters recommend it as the clearest account of human computation and games with a purpose, straight from the inventor.

  • 4 people recommended it
  • 4 different months
  • 2 strong recommendations
  • first 2012, last 2022

What HN commenters said

  1. “It is very informative and entertaining. I highly recommend it”

    Inventor of CAPTCHA explains how reCAPTCHA digitizes documents.

    drucken, 2012-01 · Strong recommendation · in “Breaking CAPTCHA with automated humans”

  2. “I highly recommend watching the TED talk by Luis von Ahn, creater of CAPTCHA and reCAPTCHA.”

    Talk by the creator of CAPTCHA on human computation.

    vowelless, 2014-04 · Strong recommendation · in “Google's Street View computer vision can beat reCAPTCHA with 99% accuracy”

  3. “it's hard to hate ReCaptcha after hearing Luis von Ahn talk about and defend his invention”

    Luis von Ahn defends reCAPTCHA as a clever way to digitize books.

    pittsburgh, 2012-03 · Recommendation · in “Google Now Using ReCAPTCHA To Decode Street View Addresses ”

  4. “His Ted talk is a good starting point.”

    Good starting point on games with a purpose.

    elviejo, 2022-03 · Recommendation · in “Ask HN: Could a game trick users into doing work?”

Excerpts from Hacker News comments, linked to the originals. Summaries and labels were written by a language model from those comments.

Topics: recaptcha, captcha, duolingo, crowdsourcing, book digitization

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