Very good google video.
Luis von Ahn is an assistant professor in the Computer Science Department
at Carnegie Mellon University, where he also received his Ph.D. in 2005.
Previously, Luis obtained a B.S. in mathematics from Duke University in
2000. He is the recipient of a Microsoft Research Fellowship.
Tasks like image recognition are trivial for humans, but continue to
challenge even the most sophisticated computer programs. This talk
introduces a paradigm for utilizing human processing power to solve
problems that computers cannot yet solve. Traditional approaches to solving
such problems focus on improving software. I advocate a novel approach:
constructively channel human brainpower using computer games. For example,
the ESP Game, described in this talk, is an enjoyable online game —
many people play over 40 hours a week — and when people play, they
help label images on the Web with descriptive keywords. These keywords can
be used to significantly improve the accuracy of image search. People play
the game not because they want to help, but because they enjoy it.
I describe other examples of "games with a purpose": Peekaboom,
which helps determine the location of objects in images, and Verbosity,
which collects common-sense knowledge. I also explain a general approach
for constructing games with a purpose.