26 • she/her • Mobile RE/Data Spelunking 
Meiklejohnian absolutist. free speech as in free-for-everyone.
mutuals: @casloopy
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I've noticed that the noise filter gets harsher once I start getting the harder captchas (especially the fading ones). I think they might be doing this to fool ML captcha solvers https://arxiv.org/pdf/1704.05051.pdf …
there was also research done on repurposing image recognition algorithms to inject artifacts into an image that would fool the non-hostile version of the same algorithm into recognising a specific, wrong object. with the difference being largely imperceptible to a human.
then other people have further applies this to do things like making a self-driving car swerve out of lane by spray painting a small white dot on the road
generally the idea of using ML to fool other algorithms is very scary to me
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