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Not to mention there are actual browser applications in the App store, such as Opera. Not to mention Safari itself. Are they saying there are filters in place i
by dumbfounder 8y ago
Not to mention there are actual browser applications in the App store, such as Opera. Not to mention Safari itself. Are they saying there are filters in place in those apps for every single website on the internet? Do they do image analysis on every single image ever downloaded?
That said, the way this works is if people report Tumblr they will ban them. So, it is either luck of the draw, or the problem is worse on Tumblr.
And that said as well, there has been plenty of child porn on Twitter over the years. (Unfortunately I have run into this firsthand because I run Twicsy, a Twitter picture search engine that has indexed nearly 8 billion Twitter pictures)
- existencebox 8y agoSorry to tangent into the tech side of your post; but do you mind talking about what you use to do the filtering? I'm in a similar space, scraping content for textual analysis alongside the images, but certainly run into the same problem. That being said, 8 billion images is a whole other level of scale to what I've touched thus far, and I'm curious how you've approached this problem, because that's CERTAINLY beyond a manual threshold.
- dumbfounder 8y agoIf I encounter truly objectionable content I remove a network of users and all of their content with a single click. It sometimes removes users that are innocent, but better to be safe than sorry. I also have a form on the site where you can report content, so I get help from visitors to identify the bad stuff. (Twicsy at its height had over 9 million visitors per month)
- rootusrootus 8y agoI know you were being a bit hyperbolic, but that is actually an interesting point. I wonder how long it will be before web browsers start real-time fingerprinting images that are downloaded and checking against the database. It seems like an inevitable progression.
- pbhjpbhj 8y agoDepending on the fingerprinting method that could be easy to overcome, servers can send unique images in response to every query, eg crop differently, add icons, or add subtle colour casts. Overcoming hashing checks could be done by varying packing bits or metadata.
- thecatspaw 8y agothere are perceptual hash algorithms overcoming exactly these issues https://en.m.wikipedia.org/wiki/Perceptual_hashing https://en.m.wikipedia.org/wiki/Perceptual_hashing
- cyborgx7 8y agoI wonder how resistant those are to distortion. The examples on the Insight page are pretty impressive, but fairly naive approaches. I feel like, if you knew the algorithm, you could probably manipulate your image data in a way to make it appear almost the same but come up with a very different hash. Similar to adversial images in computer vision. https://spectrum.ieee.org/cars-that-think/transportation/sensors/slight-street-sign-modifications-can-fool-machine-learning-algorithms https://spectrum.ieee.org/cars-that-think/transportation/sen...
- Asooka 8y agoOr put it in an encrypted 7z archive. Or any number of workarounds where you're not sending image data so the filter can't detect you.
- thecatspaw 8y agosure, but I dont think apple expects you to be able to filter this As a platform you cant really filter this, unless you blanket ban all archive files. For tumblr this might be viable, but for a file hoster it wouldnt be
- deleted 8y ago[deleted]