Other commenters have talked about labelling. Maybe labelling of real life data is something they're trying to do; but from my experience with hCaptcha the challenges are _NOT_ real life data. They're AI-generated images which bear a passing resemblance to the targets but if you look closer nothing adds up at all. Here are a couple of examples: https://bearbin.net/images/captcha/1.png https://bearbin.net/images/captc…
Ask HN: Why does Cloudflare/hCaptcha care so much about buses, boats and trains?
111–120 of 272 posts
Re: Ask HN: Why does Cloudflare/hCaptcha care so much about buses, boats and trains?
#112Earlier quoted context omitted.
If the manufacturer of self-driving cars decides to save money and depend on low-quality data, they should be blamed, not a random dude on the internet trying to send a form or visit a page.
yes. the blame shifting seems to be a very skewed thing here. then again, this is a tech forum, so of course it would lean that way. stupid users vs bad tech, so let's just blame stupid users.
Re: Ask HN: Why does Cloudflare/hCaptcha care so much about buses, boats and trains?
#113Whatever they're doing it's american-centric. Identify "Crosswalks". What the hell is a crosswalk "School bus" - what's the difference between a bus currently serving a school and another one? "Show taxis", there are no black vehicles listed at all
Re: Ask HN: Why does Cloudflare/hCaptcha care so much about buses, boats and trains?
#114Earlier quoted context omitted.
Many a time I receive multiple challenges on a site despite having selected all images perfectly, and can't help but wonder, "Hey, are they getting me to do more work than necessary because they're running behind on their labelling backlog?". There's definitely a conflict of incentives in this case. If you're a website owner, you're better off choosing a different service which doesn't have adverse incentives, otherw…
I've found it isn't about "perfection". It is about selecting the same tiles as an "average" person would. I might stare hard at an image, think that one of the tiles contains a tiny fragment of a traffic light, and select it. That isn't what most other people have already done, so the captcha thinks I'm a bot and gives me tougher and tougher challenges. Ever since I stopped pixel-peeping and started quickly selectin…
Re: Ask HN: Why does Cloudflare/hCaptcha care so much about buses, boats and trains?
#115How much train/plane/bike/truck labeling do they need? It seems like these have be standard for several years now, which is what I think the OP is really asking. Why these images, and why for so long?
Re: Ask HN: Why does Cloudflare/hCaptcha care so much about buses, boats and trains?
#116Earlier quoted context omitted.
Google is _the worst_ for that. At least hCaptcha is a bit less culturally specific. Every time Google blocks me for refusing to label a motorbike as a "bicycle" I get utterly pissed off. And likewise with the traffic lights on the californian skies. Are the traffic lights the actual lights themselves, or the boom holding them up? I'm not a human very often, according to Google. hCaptcha tends to let me in...
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Re: Ask HN: Why does Cloudflare/hCaptcha care so much about buses, boats and trains?
#117Other commenters have talked about labelling. Maybe labelling of real life data is something they're trying to do; but from my experience with hCaptcha the challenges are _NOT_ real life data. They're AI-generated images which bear a passing resemblance to the targets but if you look closer nothing adds up at all. Here are a couple of examples: https://bearbin.net/images/captcha/1.png https://bearbin.net/images/captc…
Re: Ask HN: Why does Cloudflare/hCaptcha care so much about buses, boats and trains?
#118Earlier quoted context omitted.
Google is _the worst_ for that. At least hCaptcha is a bit less culturally specific. Every time Google blocks me for refusing to label a motorbike as a "bicycle" I get utterly pissed off. And likewise with the traffic lights on the californian skies. Are the traffic lights the actual lights themselves, or the boom holding them up? I'm not a human very often, according to Google. hCaptcha tends to let me in...
I disagree, Google captchas in my experience are much quicker compared to hcaptcha When cloudflare switched to hcaptcha I definitely noticed it.
Literally any other captcha is better than this.
Re: Ask HN: Why does Cloudflare/hCaptcha care so much about buses, boats and trains?
#119Earlier quoted context omitted.
Many a time I receive multiple challenges on a site despite having selected all images perfectly, and can't help but wonder, "Hey, are they getting me to do more work than necessary because they're running behind on their labelling backlog?". There's definitely a conflict of incentives in this case. If you're a website owner, you're better off choosing a different service which doesn't have adverse incentives, otherw…
I've found it isn't about "perfection". It is about selecting the same tiles as an "average" person would. I might stare hard at an image, think that one of the tiles contains a tiny fragment of a traffic light, and select it. That isn't what most other people have already done, so the captcha thinks I'm a bot and gives me tougher and tougher challenges. Ever since I stopped pixel-peeping and started quickly selectin…
Re: Ask HN: Why does Cloudflare/hCaptcha care so much about buses, boats and trains?
#120First, I’m going to teach you to fish. Go to hCaptcha’s website, then scroll to the footer. Click around on the about links. It’ll reveal their business model. This trick also works for other businesses and NGOs. Now, if we look at https://www.hcaptcha.com/labeling we can tell they make money by labeling data sets for a fee. So as a guess, there’s someone out there that needs to improve computer vision detection of t…
Many a time I receive multiple challenges on a site despite having selected all images perfectly, and can't help but wonder, "Hey, are they getting me to do more work than necessary because they're running behind on their labelling backlog?". There's definitely a conflict of incentives in this case. If you're a website owner, you're better off choosing a different service which doesn't have adverse incentives, otherw…