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„reCAPTCHA improves the process of digitizing books by sending words that cannot be read by computers to the Web in the form of CAPTCHAs for humans to decipher. More specifically, each word that cannot be read correctly by OCR is placed on an image and us
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Präsentation/Video über die Google-Infrastruktur
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Vor allem eine sehr ausführliche Linkliste; außerdem Definitionen