19. The non-transitory computer-readable medium of claim 16 , wherein the instructions to classify each event comprises instructions to calculate a subject distance for each image in an event within the hierarchical event representation, wherein the classifying each event is based upon the subject distances.
19. The non-transitory computer-readable medium of claim 16 , wherein the instructions to classify each event comprises instructions to calculate a subject distance for each image in an event within the hierarchical event representation, wherein the classifying each event is based upon the subject distances. 20. The non-transitory computer-readable medium of claim 19 , wherein the instructions to classify each event comprises instructions to determine a location for each image in an event within the hierarchical event representation, wherein the classifying each event is based upon the locations.