781987.fig.007a
(a)
781987.fig.007b
(b)
781987.fig.007c
(c)
781987.fig.007d
(d)
Figure 7: Illustration of the learnt bases (with 𝑟 = 2 0 ) of the OPS dataset obtained via (a) NMF, (b) LNMF, (c)NMFsc, and (d) DLPP.