4Han JW, Kamber M, Wrote; Fan M, Meng XF, Trans. Data Mining Concepts and Techniques. Beijing: China Machine Press, 2001. 232-236 (in Chinese).
5N g, R. ,Han, J. Efficient and effective cluster method for spatial data m ining. In: Bocca, J. , J arke, M. , Zanio lo, C. ,eds. Proceedings of the 20th International Conference of Very L arge Data Bases. San Francisco, CA: Morgan Kaufmann Publisher, 994. 144- 155.
6Ordonez C, Omiecinski E. FREM: Fast and robust EM clustering for large data sets. In: Kalpakis K, Goharian N, Grossman D, eds. Proc. of the 2002 ACM CIKM Int' l Conf. on Information and Knowledge Management. McLean: ACM Press, 2002. 590-599.
7Zhang T, Ramakrishnan R, Livny M. BIRCH: An efficient data clustering method for very large databases. In: Jagadish HV, Mumick IS, eds. Proc. of the 1996 ACM SIGMOD Int' l Conf. on Management of Data. Montreal: ACM Press, 1996. 103.114.
