Chih-Ping Wei Tsang-Hsiang Cheng Yi-Chung Pai Semantic Enrichment in Knowledge Repositories: Anotating Semantic Relationships Between Discussion Documents. 49-66 2006 17 J. Database Manag. 1 http://www.igi-pub.com/articles/details.asp?ID=5488 db/journals/jdm/jdm17.html#WeiCP06