How does google use Captcha for self driving Cars

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Ive heard many times that google gathers data for their self driving cars through captchas.
But how does it train the AI if the AI already has the solution to the captcha im solving.
Its like a school test. The student can give right or wrong answers. No matter what answer the students gives, the teacher doesnt learn anything because he already has the answers

In the same way how does the „AI“ know my answer for the captcha is wrong
And how does my answer train anything

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5 Answers

Anonymous 0 Comments

They give the same captcha to multiple people and/or give one person a captcha where they know the answer (because other people gave it the answer previously) and one unknown captcha where they take your+others’ answers and, if they’re the same, treat that answer as right.

Those answers are used to train the AI; the AI’s knowledge is not used in determining whether you got the captcha right.

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