A simple non-negative matrix decomposition matlab program that can be run, further modifications can be used for large scale non-negative matrix decomposition calculations, feature extraction

nmf-1.01
........\README
........\testconv.mat
........\runimage.m
........\COPYRIGHT
........\nlssubprob.m
........\read_sparse.m
........\mult.m
........\runsynthetic.m
........\objfig.m
........\nmf.m
........\pgrad.m
........\runtext.m

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