14. The system of claim 13 , wherein the creating a set of one or more exemplar-based class identification features step further comprises solving a sparse representation problem.
14. The system of claim 13 , wherein the creating a set of one or more exemplar-based class identification features step further comprises solving a sparse representation problem. 15. The system of claim 14 , wherein the sparse representation problem comprises representing a test feature vector as a functional transformation of one or more training examples and learning a set of coefficients for the functional transformation.