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>>and it would be fairly simple for an expert to dump out the list of things being looked for. If you embed a neural net trained to detect "some" kind of image
by gambiting 5y ago
>>and it would be fairly simple for an expert to dump out the list of things being looked for.
If you embed a neural net trained to detect "some" kind of images, I would love to know how one could "dump" the list of things the net is looking for. Basically it's not how it works - the neural net is more or less a black box, you can't tell what kind of things it's looking for by just looking at its contents. You give it an image, it says it is a match or not, based on some internal algorithm - but looking at that algorithm tells you nothing about what kind of images would produce positive matches.
- stephen_g 5y agoThe hashes are something like a 64x64 pixel representation that can apparently be recovered to a small, very blurry but still recognisable image (when the Apple thing blew up there was a researcher who’d done it with a reimplementation of PhotoDNA from the paper).
- gambiting 5y agoSure, but if you read the article the proposed law by EU specifically mentions detecting brand new and not yet classified CSAM by using machine learning. So it's not just hashes we're talking about here.