Fig. 2: Comparison of NMF-extracted PDF signals (red) and ground truth PDFs (blue). | npj Computational Materials

Fig. 2: Comparison of NMF-extracted PDF signals (red) and ground truth PDFs (blue).

From: Stretched non-negative matrix factorization

Fig. 2

The top 2 × 2 block (a–d) shows the extraction for the conventional NMF algorithm and the bottom block (e–h) is the extraction for the stretchedNMF algorithm. The exact curves are indicated by the legend in each case, where Truth I and Truth II are the simulated ground truth curves I and II and Comp I and II indicate the first and second extracted components in each case.

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