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Archive for May 24th, 2007

reCAPTCHA: a Captcha that Helps Digitize Books

Thursday, May 24th, 2007

You’ve probably encountered a captcha by now: a form on the Web that presents an image and asks you to type some text from the image into a blank or asks you a question about the image. You might encounter them before writing a comment on someone’s weblog, sending an e-mail, or partaking in a [...]

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Archive for May 24th, 2007

reCAPTCHA: a Captcha that Helps Digitize Books

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