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Eigenvalue-eigenvector decomposition (EED) analysis of dissimilarity and covariance matrix obtained from total synchronous fluorescence spectral (TSFS) data sets of herbal preparations: optimizing the classification approach
Umeå University, Faculty of Medicine, Department of Molecular Biology (Faculty of Medicine). Umeå University, Faculty of Medicine, Molecular Infection Medicine Sweden (MIMS).
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2017 (English)In: Spectrochimica Acta Part A - Molecular and Biomolecular Spectroscopy, ISSN 1386-1425, E-ISSN 1873-3557, Vol. 184, 128-133 p.Article in journal (Refereed) Published
Abstract [en]

The present work compares the dissimilarity and covariance baseckinsupervised chemometric classification approaches by, taking the total synchronous fluorescence spectroscopy data sets acquired for the cumin and non cumin based herbal preparations. The conventional decomposition method involves eigenvalue-eigenvector analysis of the covariance of the data set and finds the factors that can explain the overall major sources of variation present in the data set. The conventional approach does this irrespective of the fact that the samples belong to intrinsically different groups and hence leads to poor class separation. The present work shows that classification of such samples can be optimized by performing the eigenvalue-eigenvector decomposition on the pair-wise dissimilarity matrix.

Place, publisher, year, edition, pages
Elsevier, 2017. Vol. 184, 128-133 p.
Keyword [en]
TSFS, Eigenvalue-Eigen vector decomposition, Dissimilarity, Covariance, PLSDA, Classification
National Category
Microbiology in the medical area
Identifiers
URN: urn:nbn:se:umu:diva-137604DOI: 10.1016/j.saa.2017.04.088ISI: 000403742500015PubMedID: 28494374OAI: oai:DiVA.org:umu-137604DiVA: diva2:1121256
Available from: 2017-07-10 Created: 2017-07-10 Last updated: 2017-07-10Bibliographically approved

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Kumar, Keshav
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Department of Molecular Biology (Faculty of Medicine)Molecular Infection Medicine Sweden (MIMS)
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CiteExportLink to record
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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
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