PARAFAC. Tutorial and applications
R Bro - Chemometrics and intelligent laboratory systems, 1997 - Elsevier
This paper explains the multi-way decomposition method PARAFAC and its use in
chemometrics. PARAFAC is a generalization of PCA to higher order arrays, but some of the
characteristics of the method are quite different from the ordinary two-way case. There is no
rotation problem in PARAFAC, and eg, pure spectra can be recovered from multi-way
spectral data. One cannot as in PCA estimate components successively as this will give a
model with poorer fit, than if the simultaneous solution is estimated. Finally scaling and …
chemometrics. PARAFAC is a generalization of PCA to higher order arrays, but some of the
characteristics of the method are quite different from the ordinary two-way case. There is no
rotation problem in PARAFAC, and eg, pure spectra can be recovered from multi-way
spectral data. One cannot as in PCA estimate components successively as this will give a
model with poorer fit, than if the simultaneous solution is estimated. Finally scaling and …
