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Hierarchical decomposition of NMF components. (a) 20 NMF components are clustered based on similarity of component weights across subjects. (b) The spatial similarity between NMF decompositions at a level of 2 components are shown with maps constructed through the addition of hierarchically clustered components at lower levels. (c) Similarity matrices are shown at the 5 and 10 component level [Color figure can be viewed at http://wileyonlinelibrary.com]
