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Old 06-13-2013, 10:41 PM   #4
dietmar13
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Location: Vienna

Join Date: Mar 2010
Posts: 107
Default non-negative matrix factorization (NMF)

non-negative matrix factorization (NMF) also allows unsupervised clustering, defining also the number of clusters which represents the data best using the cophenetic correlation index. in my hands this method produces more robust clusters compared to hierarchical clustering...

dietmar
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