Re: OT: Captchas?
On 20 Dec 2012, Ralf Mardorf wrote:
> On Thu, 2012-12-20 at 18:26 +0100, Klistvud wrote:
> > Dne, 20. 12. 2012 01:47:33 je Ralf Mardorf napisal(a):
> >
> > > Perhaps I'm a computer and I only guess that I'm human.
> >
> > Captchas seem to be based on the wrong assumption that humans can
> > recognize shapes whereas automata supposedly can't. Judging from the
> > reactions on this list, I should perhaps apply for a patent for
> > *purposely* indeciphrable captchas? I'd just have to invent a companion
> > method for detecting "unmistakably human" behavior when confronted with
> > such unsolvable captchas, such as: mad stare, hair pulling, keyboard
> > smashing, cursing, kicking the computer, spitting, yelling and the like.
> >
> > I'd like to see robots emulate *that*!
>
> That's the most funniest reply in a long time :D, but your patent might
> have some security gaps, since e.g. spitting could be "emulated"
> http://www.synthetic-urine.de/en/products/synthetic-human-body-fluids/synthetic-saliva-din-53160-1.html
>
> I heard about artificial penises + artifical urine that should be that
> natural, that it's used to pass drug screenings.
>
Captchas can be thought of as an attempt to perform the Turing test.
Experience suggests that either computers can pass it and/or humans
fail.
AC
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