30. The computer-readable medium of claim 23 wherein said step of automatically categorizing comprises: producing an output score for each document image; and using a graph search algorithm to determine an optimum categorization sequence from a plurality of possible categorization sequences for said plurality of document images based on said output scores.
30. The computer-readable medium of claim 23 wherein said step of automatically categorizing comprises: producing an output score for each document image; and using a graph search algorithm to determine an optimum categorization sequence from a plurality of possible categorization sequences for said plurality of document images based on said output scores. 34. The computer-readable medium of claim 30 wherein said step of automatically categorizing further comprises applying a manually generated classification rule that eliminates at least one possible categorization sequence.