1Meng Weiyi,Yu Clement, Liu King-Lup. Building Efficient and Effective Metasearch Engines. ACM Computing Surveys. 2002,34(1):48-89.
2Asuncion Gomez-Perez. Tutorial on Ontological Engineering. 13th European Conference on Artificial Intelligence,1998.
3Vijayan Sugumaran, Veda C Storey. Ontologies for conceptual modeling: their creation, use, and management.Data & Knowledge Engineering, 2002,42(3): 251-271.
4Susan Gauch, Jason Chaffee and Alexander Pretschner.Ontology-Based Personalized Search and Browsing. Web Intelligence and Agent Systems. 2003,1(3).
5Yates R B. Modern Information Retrieval. Addison Wesley, Inc., 1999.
6Rijsbergen C. Information Retrieval (2nd Edition). Butterworths, London, 1979.
7Manning C, Schütze H. Foundations of Statistical Natural Language Processing. Cambridge, MA: MIT Press, 1999-05.
8Frakes W B, Yates R B. Information Retrieval: Data Structures & Algorithms. Englewood Cliffs, NJ: Prentice Hall, 1992.
9Moffat A, Zobel J. Self-indexing Inverted Files for Fast Text Retrieval. ACM Transactions on Information Systems, 1996, 14(4): 349-379.
10S Brin,L Page.The Anatomy of a Large-Scale Hypertexual Web Search Engine[A].Proc of the 7th WWW Conf[C].1998.