5Souldatos S, Dalamagas T, Sellis T. Captain Nemo: A Metasearch Engine with Personalized Hierarchical Search Spaces[ J]. Informatica, 2006, (30) :173-181.
6Sugiyama K, Hatano K, Yoshikawa M. Adaptive Web Search Based on User Profile Constructed without Any Effort from Users [ C]//Proc. of the 13th International World Wide Web Conference, 2004, 675-684.
7Shen X, Tan B, Zhai C. Context-sensitive information retrieval using implicit feedback [ C ]//Proceedings of the 28th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, Salvador, Brazil, 2005,43 -50.
8Kwon O, Choi S, Park G. NAMA: a context-aware multi-agent based web service approach to proactive need identification for personalized reminder systems [ J ]. Expert Systems with Applications, 2005, 29 : 17-32.
9Vallet D, Fernandez M, Castell P, et al. Personalized Information Retrieval in Context. 2006, [OL] http:// nets. ii. uam. es/ - acemedia/publications/mrc06.
10Mylonas P H, Vallet D, Castell P, et al. Personalized information retrieval based on context and ontological knowledge [ J ]. The Knowledge Engineering Review, 2008, 23 ( 1 ) : 73-100.
