markx2 + captcha   8

Has a Computer Finally Figured Out How to Read Those Squiggly "CAPTCHA" Codes?
“The milestone is on par with Watson winning Jeopardy!,” D. Scott Phoenix told me in an initial press email teasing a breakthrough in artificial intelligence by his San Francisco-based startup, Vicarious. Whether the achievement lives up to that billing remains unclear. At the very least, it demonstrates that the company...
captcha 
december 2013 by markx2
In Search Of The Perfect CAPTCHA
CAPTCHAs, or Completely Automated Public Turing Tests to Tell Computers and Humans Apart, exist to ensure that user input has not been generated by a computer. These peculiar puzzles are commonly used on the Web to protect registration and comment forms from spam. To be honest, I have mixed feelings about CAPTCHAs. They have annoyed me on many occasions, but I’ve also implemented them as quick fixes on websites. This article follows the search for the perfect solution to the problem of increasing amounts of human-generated spam. We’ll look at how and why CAPTCHAs are used and their effect on usability in order to answer key questions: what is the perfect CAPTCHA, and are they even desirable?
captcha 
december 2013 by markx2

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