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Online Learning for Matrix Factorization and Sparse Coding

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Figure

Figure 1: Left: Comparison between our method and the batch approach for dictionary learning.Right: Comparison between our method and stochastic gradient descent
Figure 2: Left: Comparison between our method and the approach of Lee and Seung (2001) forNMF
Figure 3: Results obtained by PCA, NMF, dictionary learning, SPCA for data set D.
Figure 4: Results obtained by PCA, NMF, dictionary learning, SPCA for data set E.
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