7[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
8[2]H Liebermann.Letizia:Am Agemt that assists Web browsong[C].In:Proc Intl Conf on AI Montreal ,Canada,1995-08.
9[3]H Liebermann.Autonomous interface agents[C]In:Proc ACM Conf on Computers and Human Interaction(CHI97),Atlanta,USA,1997-05
10[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
