( Not a native English speaker)
There are rumours CAPTCHAs are actually us humans feeding the ML, but how do the servers detect my small mistakes if I’m the one who’s training them ?
If the CAPTCHA Answers were already written by the humans behind the systems why wouldn’t they just feed that to the ML or instead of relying on us ?
In: Technology
Lets say you have 100,000 photos taken of intersections, You start by taking 500, and manually marking which ones have pedestrians, cars, bikes, buses, traffic lights, etc. When someone requests a captcha, you send them 16 photos, some you’ve already marked, some you haven’t. If they get the ones you already know correct, you let them proceed, and you keep track of the results you don’t already know.
Each unknown photo gets sent to multiple people, and if a lot of people that correctly identified other images also think this one is a bicycle, you can add it to your list of known bicycles.
A few billion captchas later, you have 100k confidently classified images with which to train or test the image recognition algorithms of self driving cars.
The joke is that there is no machine learning, if you don’t identify the pedestrian in time, the car will run him over.
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