Sonntag, September 16, 2007
Captchas zum Wohle der Menschheit
Letzte Woche in der SonntagsZeitung:
About 60 million CAPTCHAs are solved by humans around the world every day. In each case, roughly ten seconds of human time are being spent. Individually, that's not a lot of time, but in aggregate these little puzzles consume more than 150,000 hours of work each day. What if we could make positive use of this human effort? reCAPTCHA does exactly that by channeling the effort spent solving CAPTCHAs online into "reading" books.
[...] 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 used as a CAPTCHA.
Quelle: What is reCAPTCHA?
Labels: OCR, Technologie, Web, Wissen
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reCaptcha hat momentan ein riesen mediale Aufmerksamkeit. Das Projekt ist auch im aktuellen c't aufgelistet. Ich finde das ganze grossartig, die blöden Captcha nerven wie sau, so macht man wenigstens noch was sinnvolles. Gewisse Wörter sind aber auch bei diesem Projekt kaum zu bestimmen.