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Figure 1
Principle of matrix factorization: the data matrix V with the spectral dimension d and the number of pixels n is represented by a set of k basis vectors W and coefficients H.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 23| Part 2| March 2016| Pages 579-589
doi:10.1107/S1600577515023528
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