Independent component analysis as a pretreatment method for parallel factor analysis to eliminate artefacts from multiway data - Archive ouverte HAL
Article Dans Une Revue Analytica Chimica Acta Année : 2007

Independent component analysis as a pretreatment method for parallel factor analysis to eliminate artefacts from multiway data

Résumé

Parallel factor analysis (PARAFAC) has successfully been used in many applications for the analysis of excitation-emission fluorescence data. However, some measurement "artefacts", such as Rayleigh or Raman scattering, can pose a problem for the extraction of the PARAFAC components and their interpretation. Replacing the spectral zones corresponding to these signals by missing values in the data is not necessarily a method of choice in the cases where informative signals lie in the same wavelength regions. In this article, independent component analysis (ICA) is used on the unfolded cubic array, and the independent components related to the Rayleigh and Raman scattering are identified and removed prior to the reconstruction of the excitation-emission fluorescence data cube. PARAFAC is then applied on these data reconstructed after selective artefact removal, and satisfactory models can be obtained. This procedure, although particularly useful for 3D fluorescence data, may be applied to other types of data as well.

Dates et versions

hal-01273702 , version 1 (12-02-2016)

Identifiants

Citer

Delphine Jouan-Rimbaud Bouveresse, Hamida Benabid, Douglas Rutledge. Independent component analysis as a pretreatment method for parallel factor analysis to eliminate artefacts from multiway data. Analytica Chimica Acta, 2007, 589 (2), pp.216-224. ⟨10.1016/j.aca.2007.02.061⟩. ⟨hal-01273702⟩
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