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@ARTICLE{Alfeld:168474,
author = {Alfeld, Matthias and Wahabzada, Mirwaes and Bauckhage,
Christian and Kersting, Kristian and Wellenreuther, Gerd and
Falkenberg, Gerald},
title = {{N}on-negative factor analysis supporting the
interpretation of elemental distribution images acquired by
{XRF}},
journal = {Journal of physics / Conference Series},
volume = {499},
issn = {1742-6596},
address = {Bristol},
publisher = {IOP Publ.},
reportid = {DESY-2014-02565},
pages = {012013},
year = {2014},
abstract = {Stacks of elemental distribution images acquired by XRF can
be difficult to interpret, if they contain high degrees of
redundancy and components differing in their quantitative
but not qualitative elemental composition. Factor analysis,
mainly in the form of Principal Component Analysis (PCA),
has been used to reduce the level of redundancy and
highlight correlations. PCA, however, does not yield
physically meaningful representations as they often contain
negative values. This limitation can be overcome, by
employing factor analysis that is restricted to
non-negativity. In this paper we present the first
application of the Python Matrix Factorization Module (pymf)
on XRF data. This is done in a case study on the painting
Saul and David from the studio of Rembrandt van Rijn. We
show how the discrimination between two different Co
containing compounds with minimum user intervention and a
priori knowledge is supported by Non-Negative Matrix
Factorization (NMF).},
cin = {FS-PE / DOOR / Eur.XFEL},
ddc = {530},
cid = {I:(DE-H253)FS-PE-20120731 / I:(DE-H253)HAS-User-20120731 /
$I:(DE-H253)Eur_XFEL-20120731$},
pnm = {PETRA Beamline P06 (POF2-54G14)},
pid = {G:(DE-H253)POF2-P06-20130405},
experiment = {EXP:(DE-H253)P-P06-20150101},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000338041300013},
doi = {10.1088/1742-6596/499/1/012013},
url = {https://bib-pubdb1.desy.de/record/168474},
}