6Jing Y,Croft W B. An Association Thesaurus for Information Retrieval. In :Proc. of RIAO 1994, C. I. D. , Paris, 1994. 146~160
7Fletcher J. http://www.stir.ac.uk/jsbin/js
8Marchiori M. The Quest for Correct Information on the Web:Hyper Search Engines. The Sixth Intl. WWW Conf. (WWW 97).Santa Clara, USA, April 1997.
9Spertus E. ParaSite: Mining Structural Information on the Web.The Sixth Intl. WWW Conf. (WWW 97). Santa Clara, USA,April 1997
10Weiss R,et al. HyPursuit: A Hierarchical Network Search Engine that Exploits Content-Link Hypertext Clustering. In: Proc. the 7th ACM Conf. on Hypertext. New York, 1996