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. Author manuscript; available in PMC: 2019 Jun 24.
Published in final edited form as: Signal Processing. 2018 Jan 6;146:79–91. doi: 10.1016/j.sigpro.2018.01.001

Fig. 6.

Fig. 6.

Visualization of random subset of learned atoms of W for CBCL dataset. 6 a–c: S-NMF with reweighted ℓ1 regularization on H, λ = 1e − 3, 1e − 2, 1e − 1, respectively. 6 d-6 f: S-NMF-W with reweighted ℓ1 regularization on H and W, λ = 1e − 3, 1e − 2, 1e − 1, respectively.