20. The computer system of claim 18 wherein the topic-term matrix includes one or more topical categories and wherein the processor is configured to classify the electronic document by assigning at least one of the one or more topical categories to the electronic document using the at least one topic model-based classification rule.
20. The computer system of claim 18 wherein the topic-term matrix includes one or more topical categories and wherein the processor is configured to classify the electronic document by assigning at least one of the one or more topical categories to the electronic document using the at least one topic model-based classification rule. 21. The computer system of claim 20 wherein the processor is configured to output the assigned at least one topical category of the electronic document.