Jamison Lofthouse wrote:
The subject sounds exactly like the reCAPTCHA<
https://www.google.com/recaptcha/intro/index.html> tagline. Not sure how
beneficial the project would be but I have seen it used. Maybe worth
looking into.
Thanks,
Negative24
I should note that the latest reCAPTCHA¹ is actually *less* friendly.
¹ the “please select all images of foobars” version.
I don't think it should be considered as the “best solution” (for wikis
where it's suitable to install), nor should we repeat their errors.
A small list:
1) It still has user assumptions based on
1a) language: the user must understand what a "foobar" is before he
can select those², and they aren't always common use words, precisely.
1b) cultural: will the user easily discover all the photos expected to
be coffee if that's not a common beverage on his country?
² no, the sample image³ is not enough to discern what they want. At
least with the expected easiness.
³ confusing UI btw, since the naive assumption would be to expect you
also had to tick it (which is disabled).
2) confusing images: Sometimes it's not clear what is depicted in the
photograph. Not even being a human.
3) wrong images: Sometimes there are images that are not really foobars
(suppose they are the similar barfoos), and thus *shouldn't* be marked
as such. But according to recaptcha they are. (and your grudgingly
selection of the barfoo in order to pass the captcha probably means that
Google is performing a wrong training reinforcing their idea that it is
indeed a foobar)
In terms of difficulty for humans I would score them as:
images recaptcha > original reCaptcha > door numbers recaptcha >
nocaptcha recaptcha
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