eli5: How do Captcha’s know the correct answer to things and beyond verification what are their purpose?

341 views

I have heard that they are used to train AI and self driving cars and what not, but if thats the case how do they know the right answers to things. IF they need to train AI to know what a traffic light is, how do they know im actually selecting traffic lights? and could we just collectively agree to only select the top right square over and over and would their systems eventually start to believe it that this was the right answer? Sorry this is a lot of questions

In: 3352

16 Answers

Anonymous 0 Comments

If you’re looking at one of those picture grids where it wants you to do something like picking all the traffic lights, then you have 9 pictures to start with.

There’s at least 1 picture that it definitely knows has a traffic light.

There’s at least 1 picture that it definitely knows doesn’t have a traffic light.

Then there are up to 7 pictures that it isn’t sure whether or not they have traffic lights.

When you make your selection, the system is making sure you selected the positive control, making sure you didn’t select the negative control, and assuming those are correct, it passes your CAPTCHA, and it also adds the data about the unknown pictures that you entered.

You are viewing 1 out of 16 answers, click here to view all answers.