Frontiers of Optoelectronics, Volume. 10, Issue 3, 273(2017)

Recursive feature elimination in Raman spectra with support vector machines

Bernd KAMPE1, Sandra KLOβ1,2, Thomas BOCKLITZ1,2, Petra RSCH1,2, and Jürgen POPP1,2,3、*
Author Affiliations
  • 1Institute of Physical Chemistry and Abbe Center of Photonics, University of Jena, Helmholtzweg 4, D-07743 Jena, Germany
  • 2InfectoGnostics Research Campus Jena, Center for Applied Research, Philosophenweg 7, 07743 Jena, Germany
  • 3Leibniz-Institute of Photonic Technology, Albert-Einstein-Stra?e 9, D-07745 Jena, Germany
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    The presence of irrelevant and correlated data points in a Raman spectrum can lead to a decline in classifier performance. We introduce support vector machine (SVM)-based recursive feature elimination into the field of Raman spectroscopy and demonstrate its performance on a data set of spectra of clinically relevant microorganisms in urine samples, along with patient samples. As the original technique is only suitable for two-class problems, we adapt it to the multi-class setting. It is shown that a large amount of spectral points can be removed without degrading the prediction accuracy of the resulting model notably.

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    Bernd KAMPE, Sandra KLOβ, Thomas BOCKLITZ, Petra RSCH, Jürgen POPP. Recursive feature elimination in Raman spectra with support vector machines[J]. Frontiers of Optoelectronics, 2017, 10(3): 273

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    Paper Information

    Category: RESEARCH ARTICLE

    Received: Apr. 4, 2017

    Accepted: May. 18, 2017

    Published Online: Jan. 17, 2018

    The Author Email: Jürgen POPP (juergen.popp@uni-jena.de)

    DOI:10.1007/s12200-017-0726-4

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