Users in public forums often mention certain topics in the course of their discussions. Member's comments in messages to other members are analyzed to obtain terms that co-occur with topics. Frequencies of co-occurrence of a term with topics are normalized based on frequency of the term in a random sample...http://www.google.co.uk/patents/US20100169327?utm_source=gb-gplus-sharePatent US20100169327 - TRACKING SIGNIFICANT TOPICS OF DISCOURSE IN FORUMS
