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. 2018 Nov 19;8:17053. doi: 10.1038/s41598-018-35399-z

Figure 2.

Figure 2

Rank selection for sparse NMF/NTD: (a) comparative plot of accuracies for two metrics, principal angle and distance correlation as base of classifying rule for Tucker decomposition, and sparse NMF with principal angle; (b) time required to estimate factor matrices. In both subfigures medians across 5-fold cross-validation runs are presented.