2Myaeng S H.The roles of user profile in information retrieval.PhD Dissertation, Southern Methodist University, 1987
3Chen C T,Tai W S. An information push delivery system design for personal informationservice on the Internet. Information Processing and Management,2003,39(6) :873-888
4Foltz P W, Dumais S T. Personalized information delivery: analysis of information filtering methods. Communications of the ACM, 1992,35 (12) :51-60
5Howe A E, Dreilinger D. Savvy search a metasearch engine that learns which search enginesto query. AI Magazine, 1997,18(2): 19--25
6Ho J,Tang Rong. Towards an optimal resolution to information overload: an infomediary approach. In: the 2001 International ACM SIGGROUP Conference on Supporting Group Work, Colorado, September 2001
