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A comment on Why can’t a bot tick the 'I'm not a robot' box?. Parent comment

Re:Why can’t a bot tick the 'I'm not a robot' box? by notriddle on Wednesday February 13, 2019 @05:58PM (#19157977)
The bot-vs-human is distinguished by profiling mouse and keystroke patterns.

The image classifications that you do, however, are used to train the computer vision system.

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