3Deerwester S.C., Dumais S.T., Landauer T.K., Furnas G. W., Harshman R.A. Indexing by latent semantic analysis. Journal of the American Society of Information Science, 1990(41 ).
4Berry M W, Dumais S T, OBrien G W. Using Linear Algebra for Intelligent Information Retrieval. SIAM Review, 1995 (12).
1Deerweter S,Dumais S T,Furnas G W et al. Indexing by Latent Semantic Analysis[J].Journal of the American Society for Information Science, 1990 ;41 (6): 391~407.
2Ding C.A Similarity-Based Probability Model For Latent Semantic Indexing[C].In:Proc of ACM SIGIR Conf, 1999.
3Graesser A C et al.A Simulation of A Human Tutor[J].Journal of Cognitive Systems Research, 1999; 1: 35~51.
4Peter W Foltz ,Darrell Laham,Thomas K Landauer. The Intelligent Essay Assessor:Applications to Educational Technology[J].Interactive Multimedia Electronic Journal of Computer-Enhanced Learning,1999;1(2).
5Papadimitriou C,Raghavan P,Tamaki H et al. Latent Semantic Indexing:A Probabilistic Analysis[J].Journal of Computer and System Sciences, 2000; 61 (2): 217~235.
6Golub G,Loan C V.Matrix Computations(2-nd ed)[M]John-Hopkins,Baltimore, 1986.