- From: Marti McCuller <marti@agassa.com>
- Date: Mon, 28 Jan 2002 12:54:24 -0500
- To: "wai-ig list" <w3c-wai-ig@w3.org>
So the idea, boiled down, is to have an automatible means on one end (to make it cheap) and a non-automatible means on the other end to be sure you are dealing with a person. Sounds like great stuff for a thesis. Marti McCuller (marti@agassa.com) Agassa Net Technologies IT/Web Accessibility Services 978-250-0231 ----------------------------- BRINGING ACCESS TO EVERYONE www.agassa.com ----------------------------- Accessible Search Technology www.SETI-search.com ----------------------------- ----- Original Message ----- From: "Steve Carter" <steve@juggler.net> To: "wai-ig list" <w3c-wai-ig@w3.org> Sent: Monday, January 28, 2002 12:33 PM Subject: Re: sign up security: > > From: "Marti McCuller" <marti@agassa.com> > Sent: Monday, January 28, 2002 4:58 PM > Subject: Re: sign up security: > > > > So, thinking about the users who might be left out (if a .wav file is > > provided), I come up with two types, a deaf/blind using a Braille device. > > And someone using a text only 'terminal' connection that does not display > > images and does not have a sound card. Does that cover it or can > > anyone think of others that might not be able to 'pass' the security test? > > > What sort of suggestions does anyone have for a method that would > > include these two groups? > > You have to look at the set of hard computing problems that humans find > easy, and the cost of solving them vs the value of having lots of robot > accounts. > > Unfortunately the gap is narrowing and the areas where humans beat machines. > We still beat them at perception, but cannot really use that in this > scenario because we cannot rely on any given form of perception existing in > the subject. > > Another area that is expensive to implement in a machine is world knowledge > and inference. The problem here is that it is a hard problem for a computer > to be the interviewer as well as for a computer to be the interviewee. This > is what makes the 'phone call' a compelling solution. The test is > administered by a human, but because the human is costly to run, it is only > used in the minority of cases who cannot respond to the .png (say) or .wav > formats. The test is valid but again we have an issue with the medium > because the phone requires hearing and speaking. I suppose in that case an > email exchange probably would be the most accessible means of administering > the interview. > > The interview method of course requires a human operator for the website's > end. At this point I have no suggestions for an automated method. >
Received on Monday, 28 January 2002 12:55:51 UTC