Duolingo -- the next chapter in human computation | Luis von Ahn | TEDxCMU 2011
Luis von Ahn, the man who brought the world CAPTCHA and reCAPTCHA unveiled his newest and most innovative project to date: Duolingo. How can you translate the entire internet and do it for...
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Reviewer: Anny Chung Ok, so I want to start by asking a question: How many of you have had to fill out some sort of web form or even has to read a distorted sequence of characters like this? How many of you found it really annoying? Ok, I understand. I invented that. (Laughter) Well, I was one of the people who did it. That thing is called a captcha. And the reason it's there is to make sure that you, the entity filling out the form, are actually a human, and not a computer program written to submit the form millions of times. The reason it works is because humans, at least, non-visually-impaired humans, have no trouble reading these distorted characters, whereas computer programs simply can't do it as well yet. For example, in the case of T...
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Reviewer: Anny Chung Ok, so I want to start by asking a question: How many of you have had to fill out some sort of web form or even has to read a distorted sequence of characters like this? How many of you found it really annoying? Ok, I understand. I invented that. (Laughter) Well, I was one of the people who did it. That thing is called a captcha. And the reason it's there is to make sure that you, the entity filling out the form, are actually a human, and not a computer program written to submit the form millions of times. The reason it works is because humans, at least, non-visually-impaired humans, have no trouble reading these distorted characters, whereas computer programs simply can't do it as well yet. For example, in the case of T...
