18. The system of claim 13 , wherein the processor operatively coupled to the memory is further configured to transform the sensitivity matrix into a second matrix wherein each sub-matrix in the second matrix contains class identity information about an exemplar from a same sub-matrix of the sensitivity matrix.
18. The system of claim 13 , wherein the processor operatively coupled to the memory is further configured to transform the sensitivity matrix into a second matrix wherein each sub-matrix in the second matrix contains class identity information about an exemplar from a same sub-matrix of the sensitivity matrix. 19. The system of claim 18 , wherein the class identity for each sub-matrix in the second matrix is created from a set of one or more indexes corresponding to a class identity in a same sub-matrix in the sensitivity matrix.