Antonio Sanfilippo Andrew J. Cowell Stephen Tratz A. M. Boek Amanda K. Cowell Christian Posse Line C. Pouchard Content Analysis for Proactive Intelligence: Marshaling Frame Evidence. 919-924 2007 conf/aaai/2007 AAAI db/conf/aaai/aaai2007.html#SanfilippoCTBCPP07