13. The pattern recognition system of claim 1 further comprising: a second training subsystem that receives a second plurality of training input patterns of a second data type from the subject classes and forms a second set of categories; a second classifier that receives at least one test input pattern of the second data type from the subject during the testing operation and forms a category association between the at least one test input pattern of the second data type and a category of the second set of categories and forms a second observation histogram; and a processor for combining the first and second observation histograms into a cumulative histogram to produce a cumulative classification of the subject within a class.
13. The pattern recognition system of claim 1 further comprising: a second training subsystem that receives a second plurality of training input patterns of a second data type from the subject classes and forms a second set of categories; a second classifier that receives at least one test input pattern of the second data type from the subject during the testing operation and forms a category association between the at least one test input pattern of the second data type and a category of the second set of categories and forms a second observation histogram; and a processor for combining the first and second observation histograms into a cumulative histogram to produce a cumulative classification of the subject within a class. 17. The pattern recognition system of claim 13 wherein at least one data type comprises voice data.