5Berry M W, Dumais S T, O'Brien G W. Using linear algebra for intelligent information retrieval[J]. SIAM Rev.. 1995,37 :573-595.
6Berry M, Witter D. Intelligent information management using latent semantic indexing [C]. In: Proceedings of Interface'97,Interface of North America Foundation, Fairfax Station, VA.1997.
7Dekel E. Dnassimi, Sahni S. Parallel matrix and graph algorithms [J]. SIAM Journal on Computing. Nov. 1981. 10 (4):657-675.
8Berg D. A guide to the Oxford English Dictionary[M]. Oxford University Press. Oxford, UK, 1993.
9Sparck Jones K. A statistical interpretation of term specity and its applications in retrieval[J]. Documentation, 1972, 28.11-21.
10Bharat K, Broder A. Estimating the relative size and overlap of public web searchengines[C]. In: 7th International World Wide Web Conference, paper FP37, Elsevier Science, New York,1998.