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Facebook open-sources Detectron

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Re: Facebook open-sources Detectron

#181

Post by zhte415 »

wott wrote: post #110
kurtisc wrote: post #81

Earlier quoted context omitted.

For the car captchas, I've found actually clicking all the boxes with part of a car will always be a wrong answer (distinct from when it just makes you answer twice). Instead, you have to click on the squares that you know it thinks are cars. This creates a twisted Turing test situation where, to prove you are a human, you have to pretend to be a machine's idea of what a human is.

I have more problems with bridges than with cars. The damn thing forces you to select 3 bridges, except that there are only 2... So you are forced to select what it thinks is a bridge, and confirm his erroneous bias even more.

Sounds like poor question asking. "Click any square with a bridge" would be better wording.

Re: Facebook open-sources Detectron

#182

Post by newscracker »

notyourwork wrote: post #138
newscracker wrote: post #2

This looks amazing from the computing point of view (and is an achievement of sorts), yet the confidence percentages are lower than what an average human might be able to solve for (like in the case of CAPTCHA tests). Meanwhile, I wonder about the human costs if systems like these are adopted for purposes where they may be ill suited for, especially cases where their confidence scores are ignored (or mistakenly assum…

Care to give any examples of scenarios you are concerned about?

My primary worry is law enforcement and government surveillance considering these systems as infallible and making judgments or life-changing decisions based on interpretations like this from computers. Computing has improved our lives a lot, but sometimes I feel there's an air of over confidence that clouds our judgment.

Re: Facebook open-sources Detectron

#183

Post by stochastic_monk »

crtasm wrote: post #160
stochastic_monk wrote: post #145

Earlier quoted context omitted.

I take it you don't use a VPN. I often have to pass a captcha just to use google search when in an IPv4 address. (Considering that ISPs are now allowed to sell my data, using a VPN seems to be an obvious choice.) It's annoying to the point that it's pushed me to use DuckDuckGo more often and I tend to avoid platforms that require me to continually take their captchas. I used Discord for a little while, but once it st…

Have you tried Startpage? Lets you Google search via their proxy servers, no issues with tor/vpn that I recall.

This might be exactly what I need. Thank you!

Re: Facebook open-sources Detectron

#184

Post by stochastic_monk »

kbenson wrote: post #147
stochastic_monk wrote: post #145

Earlier quoted context omitted.

I take it you don't use a VPN. I often have to pass a captcha just to use google search when in an IPv4 address. (Considering that ISPs are now allowed to sell my data, using a VPN seems to be an obvious choice.) It's annoying to the point that it's pushed me to use DuckDuckGo more often and I tend to avoid platforms that require me to continually take their captchas. I used Discord for a little while, but once it st…

So, you're traffic is coming from some provider that purposefully obfuscates info and your traffic is mixed with a bunch of other people's? I can't imagine why they view you as less likely to be verified as a real person...

I'm not saying that it's an unreasonable assessment on their part, but it is a large annoyance.

My question is: are they doing this to simply get more training data for image classification, reduce server load by minimizing automated traffic, or to sanitize their queries for human input for NLP models?

Re: Facebook open-sources Detectron

#185

Post by kbenson »

stochastic_monk wrote: post #184
kbenson wrote: post #147

Earlier quoted context omitted.

So, you're traffic is coming from some provider that purposefully obfuscates info and your traffic is mixed with a bunch of other people's? I can't imagine why they view you as less likely to be verified as a real person...

I'm not saying that it's an unreasonable assessment on their part, but it is a large annoyance. My question is: are they doing this to simply get more training data for image classification, reduce server load by minimizing automated traffic, or to sanitize their queries for human input for NLP models?

> My question is: are they doing this to simply get more training data for image classification, reduce server load by minimizing automated traffic, or to sanitize their queries for human input for NLP models?

As someone that works in an industry where CAPTCHAs have historically played a large role, and some players flat our use technology to bypass them, and do so using proxy and/or VPN services to get good IP addresses to do so, I imagine those automated systems both corrupt the CAPTCHA system somewhat, since it looks like a large corpus of humans behave in a certain manner and it's not humans at all. It likely also causes those IPs to be considered by the CAPTCHA system as highly suspect whenever encountered.

For your next questions, the industry is event ticket resale, and no, we don't do that (there are aboveboard ways to function in this market that rely less on brute force and more on data mining and analysis for specific targeted investment, and sometimes long after it's been on sale).

Re: Facebook open-sources Detectron

#186

Post by stolsvik »

sangnoir wrote: post #171
kuschku wrote: post #158

Earlier quoted context omitted.

Anything created with free work should be free in return. Anything created by the public should be available for the public.

To use an in-thread example - online forums are created with free work. Should all forums be forced to make their archives available for free download as well?

Yes.

Re: Facebook open-sources Detectron

#187

Post by kuschku »

sangnoir wrote: post #171
kuschku wrote: post #158

Earlier quoted context omitted.

Anything created with free work should be free in return. Anything created by the public should be available for the public.

To use an in-thread example - online forums are created with free work. Should all forums be forced to make their archives available for free download as well?

For free download? No. Should I be able to scrape them? Yes.

Re: Facebook open-sources Detectron

#188

Post by stzpz »

haeffin wrote: post #180
ajtulloch wrote: post #179

Earlier quoted context omitted.

They exist and are (nearly all) open-sourced for CPU & Metal (I wrote some of them).

Nice - the "Detectron operators currently do not have CPU implementation; a GPU system is required." on https://github.com/facebookresearch/Detectron/blob/master/IN... is outdated then? Or is it the "nearly all" that's behind this statement?

We have open sourced several operators for detectron so that the model could run on GPU/CPU/mobile (https://github.com/facebookresearch/Detectron/commit/757d77c...). We also open sourced a conversion tool (https://github.com/facebookresearch/Detectron/commit/757d77c...) to help converting the model.
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