Classification of challenging Laser-Induced Breakdown Spectroscopy soil sample data - EMSLIBS contest

Spectrochimica Acta Part B Atomic Spectroscopy, vol. 169, pp. 105872

Abstract

We present results of the classification contest organized for the EMSLIBS 2019 conference. For this publication, we chose only the five best approaches and discussed their algorithm in detail. The main focus of the contest reflected both recent and long-term challenges of Laser-Induced Breakdown Spectroscopy (LIBS) data processing . The contest was designed with a purpose to raise a challenge in handling and processing a very large dataset, containing high-dimensional elemental spectra. For the contest, 138 samples were measured using a lab-based LIBS system. In total, the data set consisted of 70,000 spectra, separated into 12 classes according to their elemental composition . Due to its extensivity and complexity, the data set is unique within the LIBS community. The central idea was to simulate the so-called “out-of-sample” classification (i.e. according to similar elemental composition), implying various real-world applications. Even more, it reflects the current level of expertise in the LIBS community and the capability of the LIBS method itself.

Authors 14

1. Jakub Vrábel corresponding

   Central European Institute of Technology · Masaryk University · Central European Institute of Technology – Masaryk University · Brno University of Technology

   Affiliation as printed

   Central European Institute of Technology, Brno University of Technology, Purkyňova 123, 612 00 Brno, Czech Republic

   CEITEC MU - Central European Institute of Technology [Brno] (Masaryk University, Kamenice 753/5 625 00 Brno - Czech Republic)

2. Erik Képeš

   Central European Institute of Technology · Masaryk University · Central European Institute of Technology – Masaryk University · Brno University of Technology

   Affiliation as printed

   Central European Institute of Technology, Brno University of Technology, Purkyňova 123, 612 00 Brno, Czech Republic

   CEITEC MU - Central European Institute of Technology [Brno] (Masaryk University, Kamenice 753/5 625 00 Brno - Czech Republic)

3. Ludovic Duponchel

   Centre National de la Recherche Scientifique · Université de Lille · Laboratoire de Spectroscopie pour les Interactions, la Réactivité et l'Environnement

   Affiliation as printed

   Univ. Lille, CNRS, UMR 8516, LASIRe – LAboratoire de Spectroscopie pour les Interactions, la Réactivité et l'Environnement, F-59000 Lille, France

   LASIRE - Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement - UMR 8516 (LASIRe, anciennement LASIR -- Université de Lille - Bâtiment C5 (secrétariat), C8 et C4 - 59655 Villeneuve d'Ascq Cedex - France)

4. Vincent Motto-Ros

   Lyon 1 Université · Centre National de la Recherche Scientifique · Université de Lyon · Institut Lumière Matière

   Affiliation as printed

   Institut Lumière Matière, UMR 5306, Université Lyon 1 - CNRS, Université de Lyon, 69622 Villeurbanne, France

   iLM - SPECTROBIO - iLM - Spectrométrie des biomolécules et agrégats (France)

5. C. Fabre

   Centre National de la Recherche Scientifique · GeoRessources · Université de Lorraine

   Affiliation as printed

   Université de Lorraine, Laboratoire GeoRessources (UMR CNRS 7359), 54506 Vandoeuvre-lès-Nancy, France

   GeoRessources (Université de Lorraine, Faculté des Sciences et Technologies, rue Jacques Callot, BP 70239, 54506 Vandoeuvre-lès-Nancy Cedex - France)

6. Sven Connemann Aachen Fraunhofer Institute for Laser Technology ILT

   Fraunhofer Institute for Laser Technology

   Affiliation as printed

   Fraunhofer Institute for Laser Technology ILT, Steinbachstraße 15, 52074 Aachen, Germany

   ILT - Fraunhofer-Institut für Lasertechnik (Steinbachstr. 15 D-52074 Aachen - Germany)

7. Frederik Schreckenberg Aachen Fraunhofer Institute for Laser Technology ILT

   Fraunhofer Institute for Laser Technology

   Affiliation as printed

   Fraunhofer Institute for Laser Technology ILT, Steinbachstraße 15, 52074 Aachen, Germany

   ILT - Fraunhofer-Institut für Lasertechnik (Steinbachstr. 15 D-52074 Aachen - Germany)

8. Paul Prasse

   University of Potsdam

   Affiliation as printed

   Department of Computer Science, University of Potsdam, August-Bebel-Strasse 89, 14482 Potsdam, Germany

   Institut für informatik [Potsdam] (Universität Potsdam Institut für Informatik August-Bebel-Strasse 89 D-14482 Potsdam - Germany)

9. Daniel Riebe

   University of Potsdam

   Affiliation as printed

   Physical Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476 Potsdam, Germany

   Institute of Chemistry (Physical Chemistry) (Potsdam - Germany)

10. Rajendhar Junjuri

    University of Hyderabad

    Affiliation as printed

    Advanced Centre of Research in High Energy Materials, University of Hyderabad, Prof C R Rao Road, Central University Campus PO, Gachibowli, Hyderabad, 500046, Telangana, India

    ARCHEM - Advanced Centre of Research in High Energy Materials (India)

11. Manoj Kumar Gundawar

    University of Hyderabad

    Affiliation as printed

    Advanced Centre of Research in High Energy Materials, University of Hyderabad, Prof C R Rao Road, Central University Campus PO, Gachibowli, Hyderabad, 500046, Telangana, India

    ARCHEM - Advanced Centre of Research in High Energy Materials (India)

12. Xiaofeng Tan
    Affiliation as printed

    X Scientific, China

    X Scientific (China)

13. Pavel Pořízka

    Central European Institute of Technology · Masaryk University · Central European Institute of Technology – Masaryk University · Brno University of Technology

    Affiliation as printed

    Central European Institute of Technology, Brno University of Technology, Purkyňova 123, 612 00 Brno, Czech Republic

    CEITEC MU - Central European Institute of Technology [Brno] (Masaryk University, Kamenice 753/5 625 00 Brno - Czech Republic)

14. Jozef Kaiser

    Central European Institute of Technology · Masaryk University · Central European Institute of Technology – Masaryk University · Brno University of Technology

    Affiliation as printed

    Central European Institute of Technology, Brno University of Technology, Purkyňova 123, 612 00 Brno, Czech Republic

    CEITEC MU - Central European Institute of Technology [Brno] (Masaryk University, Kamenice 753/5 625 00 Brno - Czech Republic)