Artificial intelligence: Turing, the changes

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Artificial intelligence


Google revamps how it tests whether a website visitor is human



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IN THE end, the robots won. On December 3rd, Google announced that it was radically changing its ReCAPTCHA system, the sort of prove-you’re-a-human-and-not-automated-software test that has become all but ubiquitous online. In April, Google researchers published a paper showing that their computer-vision software could decipher their own squashed and twisted images 99.8% of the time. 
For many, it comes as little surprise that algorithms can now nearly always beat a CAPTCHA. This is a tortured acronym that stands for “completely automated public Turing test to tell computers and humans apart”, and refers to a notional test devised by Alan Turing, a British code-breaker and computer-science pioneer, in which humans test a machine to see if it can think. CAPTCHAs are the reverse, administered by …

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