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Computers Exploit Human Brainpower to Decipher Faded Texts

Discover how an anti-spam program leverages crowdsourcing to digitize The New York Times archives through reCAPTCHA.

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In a neat example of Internet-enabled "crowdsourcing," the method of distributing a large task to many contributors, researchers are using an anti-spam program to get people to decipher damaged or faded texts, one word at a time.

Chances are that if you've solved one of those distorted-word tests to secure an account with Facebook, Craigslist, or Ticketmaster, you've helped The New York Times inch a little closer to digitizing its entire print newspaper archive from 1851 to 1980 [CNET].

The program, known as reCAPTCHA, is widely used to ensure that humans, rather than spam bots, are commenting on blogs (including some of DISCOVER's) and signing up for free email accounts.

"More web sites are adopting reCAPTCHAs each day, so the rate of transcription keeps growing," said [lead researcher Luis] von Ahn. "More than 4 million words are being transcribed every day. It would take more than 1,500 people working 40 ...

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