What problems can be solved by crowd sourcing?

One of the most exciting new developments is the study of how humans can aid algorithms or computer systems in solving tasks where humans are very good and machines are not -- e.g., recognizing objects in video. Amazing successes have been had in areas like understanding how proteins fold (see FoldIt). Others are using Amazon's Mechanical Turk service (and its competitors) to pay people to perform small tasks. CIS 399 explores how human and computational methods can be used to solve difficult problems -- including how to divide up problems, cross-validate results, and more.