Inspiration
CAPTCHA is a mechanism to verify that a user is actually human, and not a bot that tries to spam a website or an app, by asking the user the write the letters that appear on an image.
CAPTCHAs suck. They often look like this:
and it can be super hard for a legit user to pass CAPTCHAs.
What it does
Introducing Bot or Not.
Bot or Not is the next generation of CAPTCHAs. Instead of showing a weird image with complicated letters, we just show 6 images of various products and items from eBay. The user simply needs to select the images that represent the same product.
Note that 3 of the images in this example represent iPhones, and the rest of them represent different things. In this case, the user needs to select the 3 iPhone images. This is an extremely hard job for a robot, but a very easy job for a human.
2 of the iPhone images in this example are images of items that we are sure that are actually iPhones. The catch is that we - and eBay - are not sure about the 3rd iPhone image. By using wisdom of the crowd, we're trying to classify the 3rd item.
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