A method of content grouping based on a corresponding text includes reading from a content list file for a plurality of content groups, and extracting a key phrase set for each content group. The method includes determining, for each content group, a unique score and a non-unique score, determining a...http://www.google.ca/patents/US7096179?utm_source=gb-gplus-sharePatent US7096179 - Text-based automatic content classification and grouping
