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. 2019 Feb 25;36(1):24–32. [Article in Chinese] doi: 10.7507/1001-5515.201806039

表 1. The estimation of parameters in three dimensional three component GMM.

3 分支三维高斯混合模型参数估计

参数 初始值 EM 算法估计值
α (1/3,1/3,1/3) (0.25,0.33,0.42)
μ 1 (2.090,1.865,5.880) (1.080,1.750,7.800)
Σ 1 Inline graphic Inline graphic
μ 2 (1.320,6.899,7.060) (1.240,5.720,9.540)
Σ 2 Inline graphic Inline graphic
μ 3 (1.465,4.957,10.580) (1.150,8.720,14.610)
Σ 3 Inline graphic Inline graphic