Thursday, December 02, 2010

Luis von Ahn Harnesses Brainpower

Computer scientist Luis von Ahns programs harness the human brainpower to solve complex problems. von Ahn invented ReCaptcha, a program that uses squiggly characters that humans easily decipher but blocks spambots and helps digitize millions of old texts. The CMU professor also makes games that use human knowledge to improve computers. Find them at

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