Browsing Centre for Digital Music (C4DM) by Issue Date
Now showing items 1-20 of 196
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Theorems on positive data: on the uniqueness of NMF.
(2008)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 ... -
Analysis, Visualization, and Transformation of Audio Signals Using Dictionary-based Methods
(Taylor & Francis (Routledge): SSH Titles, 2009-12-17) -
Sound Source Separation
(John Wiley & Sons, 2011) -
INK-SVD: Learning incoherent dictionaries for sparse representations
(IEEE, 2012)This work considers the problem of learning an incoherent dictionary that is both adapted to a set of training data and incoherent so that existing sparse approximation algorithms can recover the sparsest representation. ...