5Gordon Michael,Pathak Praveen.Finding information on the World Wide Web:the retrieval effectiveness of search engines.Information Processing & Management,1999 (2)
2[1]R Armstrong,D Freitag,T Joachims et al.Web Watcher:A Learning apprentice for the World Wide Web[C]In:Proc AAAI Spring Symp on Information Gathering form Heterogeneous,Distributed Environments,1995-03
3[2]H Liebermann.Letizia:Am Agemt that assists Web browsong[C].In:Proc Intl Conf on AI Montreal ,Canada,1995-08.
4[3]H Liebermann.Autonomous interface agents[C]In:Proc ACM Conf on Computers and Human Interaction(CHI97),Atlanta,USA,1997-05
5[4]T Kurki,S Jokela,R Sulonen et al.Agents in delvering personalized content based on semantic metadata[C].In:Proc 1999 AAAI SpringUSA, 1999: 84～93
6[5]T Joachims,D Freitag,T Mitchell. WebWatcher:A Tour Guide for the World Wide Web[C].In:Proc IJCAI97,1997-08
7[6]E Casasola. ProFusion PersonalAssistant:an agent for personalized information filtering on the WWW[D].Master's thesis.The University of Kansas, Lawrence, KS, 1998
8[7]A Pretschner. Ontology Based Personalized Search[D].Master's thesis.The University of Kansas,Lawrence,KS,www4.in.tun.de/～prestchn/papers/kutheesis.ps.gz, 1999
9[8]H Sorensen,M McElligott.PSUN :a profiling system for Usenet news[C].In:Proc CIKM'95 workshop on Intelligent Information Agents Workshop, Baltimore, USA, 1995-12
10[9]A Stefani,C Strappavara. Personalizing access to web sites:The SiteIF project[C]. In:Proc 2nd Workshop on Adaptive Hypertext and Hypermedia HY-PERTEXT98,Pittsburgh,USA, 1998-06
