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Analysis, Visualization, and Transformation of Audio Signals Using Dictionary-based Methods
(Taylor & Francis (Routledge): SSH Titles, 2009-12-17)
Theorems on positive data: on the uniqueness of NMF.
We investigate the conditions for which nonnegative matrix factorization (NMF) is unique and introduce several theorems which can determine whether the decomposition is in fact unique or not. The theorems are illustrated ...
Full abstraction for PCF