this post was submitted on 27 Sep 2024
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Anyone who has been surfing the web for a while is probably used to clicking through a CAPTCHA grid of street images, identifying everyday objects to prove that they're a human and not an automated bot. Now, though, new research claims that locally run bots using specially trained image-recognition models can match human-level performance in this style of CAPTCHA, achieving a 100 percent success rate despite being decidedly not human.

ETH Zurich PhD student Andreas Plesner and his colleagues' new research, available as a pre-print paper, focuses on Google's ReCAPTCHA v2, which challenges users to identify which street images in a grid contain items like bicycles, crosswalks, mountains, stairs, or traffic lights. Google began phasing that system out years ago in favor of an "invisible" reCAPTCHA v3 that analyzes user interactions rather than offering an explicit challenge.

Despite this, the older reCAPTCHA v2 is still used by millions of websites. And even sites that use the updated reCAPTCHA v3 will sometimes use reCAPTCHA v2 as a fallback when the updated system gives a user a low "human" confidence rating.

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[–] y0kai@lemmy.dbzer0.com 0 points 1 month ago (1 children)

Mopeds are similar but have pedals and can be used as a bicycle. The name itself, Mo-Ped" is a portmanteau for motor and pedal.

Motor scooters are different in that they have a cut out for the rider's legs/ feet so they don't have to straddle it the same way they would with a motorcycle. Both mopeds and motor scooters do not require a license endorsement here, while motorcycles, as defined in my original comment, do.

[–] Ilovethebomb@lemm.ee 1 points 1 month ago (1 children)

https://en.m.wikipedia.org/wiki/Moped

The definition in most countries is less than 50cc and a maximum power output, they do not need to have pedals. Anything over 50cc is a motorbike.

[–] y0kai@lemmy.dbzer0.com 0 points 1 month ago (1 children)

So a moped with a 49cc engine, astep-through design, and no pedals is a moped but a scooter with a step-through design and 49cc engine is a motorcycle?

That's confusing as fuck lol

[–] Ilovethebomb@lemm.ee 1 points 1 month ago

Not really, both your examples are a moped. The definition of a moped in most places has nothing to do with the style of bike.