中文说明：非负矩阵分解法，这一种新型的子空间分解方法，增加了非负性约束，比PCA、ICA更有效
English Description：
Nonnegative matrix factorization, a new subspace decomposition method, adds nonnegative constraints and is more effective than PCA and ICA
Realization of nonnegative matrix decomposition by matlab code
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中文说明：非负矩阵分解法，这一种新型的子空间分解方法，增加了非负性约束，比PCA、ICA更有效
English Description：
Nonnegative matrix factorization, a new subspace decomposition method, adds nonnegative constraints and is more effective than PCA and ICA