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Facebook open-sources Detectron

research.fb.com

71–80 of 188 posts

Re: Facebook open-sources Detectron

#71
post #3

> Beyond research, a number of Facebook teams use this platform to train custom models for a variety of applications including augmented reality and community integrity. Any idea what they mean by "community integrity"?

Maybe you want to censor internally part of an image for privacy reasons.

For instance, in my country you cannot use or publish children images without parents consent.

The fine for doing that is way higher than your benefits even discounting bad press.

Re: Facebook open-sources Detectron

#72
post #62

Earlier quoted context omitted.

I hate it when I fail the Turing test, and can't log in to stuff.

Obviously I am 99.99% sure I am clicking correctly, yet Recaptcha displays me another and another captcha, until it lets me move on. Is it a system bug or maybe their bot detection got quite unreliable?

Neither. When Google finds someone willing to train its AI for free, it likes to take advantage.

Re: Facebook open-sources Detectron

#74

Earlier quoted context omitted.

Maybe https://pjreddie.com/darknet/install or one of the various forks. YOLO is supposed to be one of the best object detection systems as far as accuracy/speed is concerned.

Look at the first table in https://arxiv.org/pdf/1708.02002.pdf (the RetinaNet paper, code + models included in this release). There’s a substantial accuracy cost for YOLO vs other, similarly fast (within a factor of 2 or so), methods.

> similarly fast

Unless I misunderstood figure 2, YOLO seems to be more than twice as fast than the second runner and yes I agree and already was aware that YOLO's accuracy is not as good as other classifiers.

Re: Facebook open-sources Detectron

#75
post #8
post #7

So is this the end of Google captchas asking for where the car/sign/whatever is? Will there be a final battle of AIs, where they will kill each other, and the unfettered access to websites over VPN/tor wins and laughs the last laugh?

This is some of the most advanced work out there - but CV is not “solved” most vision systems only can label about 1k categories of objects. So capatchas can still be easiy constructed that would fool these systems. Part of why it is exciting to get this out there others can help us improve it.

But how many more classes can all users solve? If you have to identify all oaks from a group of trees I doubt many would solve that correctly.

Re: Facebook open-sources Detectron

#76
post #19

Earlier quoted context omitted.

I would expect it to work on detecting the mismatching of content for types of communities in general. For example, preventing pictures of cats or giraffes being uploaded as a product photo on Poshmark when it's supposed to be a pair of shoes. That type of check should become standard in a short amount of time for all communities that accept photos (that isn't meant to be general purpose, eg Imgur).

For example marketplace (where you can sell items on Facebook) will suggest a category for the item if you upload a photo.

I can't wait for Facebook marketplace to fail. The constant stream of useless ads is obnoxious. I am using Facebook less because there is no way to block that low quality content

Re: Facebook open-sources Detectron

#77

Earlier quoted context omitted.

Obviously I am 99.99% sure I am clicking correctly, yet Recaptcha displays me another and another captcha, until it lets me move on. Is it a system bug or maybe their bot detection got quite unreliable?

Neither. When Google finds someone willing to train its AI for free, it likes to take advantage.

You are a bit sarcastic. What can a user do? Either he continues solving "train their AI for free" until the let you move on or you leave the site?

Re: Facebook open-sources Detectron

#78
post #42
post #40

Is there a class of math problem humans can solve but computers cannot? Then we could just use these problems as a guaranteed test instead of the current CAPTCHA arms race.

There is no arms race. 99.9% of the time Google knows if you're a robot based on your browser state. They make you label the images because it's a free way to get training data.

Then why does Google use the world's worst captcha for their own services?

Re: Facebook open-sources Detectron

#79
post #55
post #7

So is this the end of Google captchas asking for where the car/sign/whatever is? Will there be a final battle of AIs, where they will kill each other, and the unfettered access to websites over VPN/tor wins and laughs the last laugh?

Has someone ever tried to submit images from Google captchas to Google Images? An answer like "This is definitely a sign" from Google Images would be funny.

I just tried it:

http://www.jaruzel.com/files/streetsign.jpg

:)

Re: Facebook open-sources Detectron

#80
post #55
post #7

So is this the end of Google captchas asking for where the car/sign/whatever is? Will there be a final battle of AIs, where they will kill each other, and the unfettered access to websites over VPN/tor wins and laughs the last laugh?

Has someone ever tried to submit images from Google captchas to Google Images? An answer like "This is definitely a sign" from Google Images would be funny.

Yes: https://www.blackhat.com/docs/asia-16/materials/asia-16-Siva...
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