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Fig. 6 | BioMedical Engineering OnLine

Fig. 6

From: Assessment of nonnegative matrix factorization algorithms for electroencephalography spectral analysis

Fig. 6

a Stability of lraNMF_HALS decomposition for each component (the pink mark denoted by the averaged \(I_{q}\) and the red mark denoted by standard deviation of \(I_{q}\)); b clustering 450 extracted components from 50 runs of NMF with 9 components in each run, stability index (\({\text{I}}_{\text{q}}\)) and the number of components in each cluster for lraNMF_HALS; c inner similarity of each cluster for lraNMF_HALS

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