1. A computer-implemented method of classifying a data object, comprising: scanning the data object with a processor; evaluating contents of the data object based on at least one selected rule; generating a sequence that classifies at least some contents of the data object, and storing the sequence as a single digital file in a selected target memory, further comprising a discrete weight decay algorithm comprising: assigning a given weight value for a rule; and if additional values are received for the given weight value for the rule, then permitting those additional values to have a progressively lesser effect on a summed weight value.