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Alex Rivera
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My reading of this article suggests that a benefit of ReCAPTCHA is that it can have humans verify words not recognised in the OCR/digitization of books. It does this by using these words in "Are you human?" tests. So ReCAPTCHA kills two birds with one stone. Great! But I dont get it. If the word can't be recognised by the digitization process then what is the input entered, by the supposed human being, verified against? How does this work?
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