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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},
}