2Dempster, A. P, Laird, N. M, Rubin, D. B. Maximum likelihood for incomplete data via the EM algorithm.[J] .J.R. Stat. Soc,1977,B, 39:1-38.
3Liu C, Sun D X. Acceleration of EM Algorithm for Mixtures Models using ECME[J]. ASA Proceedings of the Stat. Comp. Session, 1997, 109-114.
4Christophe Biemacki.Initializing EM Using the Properties of its Trajectories in Gaussian Mixtures [J]. Statistics and Computing,2004, 14, 3:267-279.
5Patricia McKenzie, Michael Alder. Initializing the EM Algorithm for use in Gaussian Mixture Modelling [J]. Amsterdam Esevier Science BV, 1994:91-105.
6Biernacki C, Celeux G, Govaert G. Choosing Starting Values for the EM Algorithm for Getting the Highest Likelihood in Multivariate Gaussian Mixture Models[J]. Computational Statistics and Data analysis, 2002.
7Banfield J. D, Raftery A. E. Model-based Gaussian and non-Gaussian clustering [J]. Biometrics, 1993, 49:803-821.
8Fraley C, A.E. Raftery.How many clusters? Which clustering method? -Answers via model-based cluster analysis [J]. The Computer Journal, 1998, 41:578-588.
9D.W.Scott. On optimal and data-based histograms [J]. Biometrika, 1979, 66:605-610.
