reCaptcha

  Pesala 18:05 02 Oct 2007
Locked

An innovative use of website logins to digitise old books. click here

Why not use this on your website or forum?

BBC article: click here Spam weapon helps preserve books.

  DrScott 18:19 02 Oct 2007

that this was a rather clever way of solving their problem.

  WhiteTruckMan 22:04 02 Oct 2007

Not sure how efficient it would be compared to ordinary proofreading, but the simplicity of it appeals to me.

WTM

  Pesala 05:36 03 Oct 2007

I think it would be pretty good. The user has to enter two words. One is known, the second is not known. Both words are scanned from the same document, so this greatly increases the chances that if the user gets the known one right, they will also get the unknown one right. Conventional proof-readers would also make mistakes and typos so the usual thing is to do a comparison of two results checking for differences.

They say:

"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."

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