2Zadeh L A. Fuzzy sets[J]. Information and Control, 1965, 8(3): 338-353.
3Bezdek J C. Pattern recognition with fuzzy objective function algorithms[M]. New York: Plenum Press, 1981.
4Lou Xiaojun, Li Junying, Liu Haitao. Improved fuzzy C-means clustering algorithm based on cluster density[J]. Journal of Computational Information Systems,2012, 8(2): 727-737.
5Ambroise C, Govaert G. Convergence of an EM-type algorithm for spatial clustering[J]. Pattern Recogni- tion Letters, 1998, 19(10): 919-927.
6Ayech M W, E1 Kalti K, E1 Ayeb 13. Image segmen- tation based on adaptive fuzzy-C-means clustering [C]. Pattern Recognition (ICPR), 2010 20th Inter- national Conference, New York: IEEE, 2010 : 2306- 2309.
7Roweis S. EM algorithms for PCA and SPCA[J]. In Advances in Neural Information Processing Systems, 1998, 626-632.
