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Distinguishing Discoid and Centripetal Levallois methods through machine learning

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  • Irene González-Molina
  • Blanca Jiménez-García
  • José-Manuel Maíllo-Fernández
  • Enrique Baquedano
  • Manuel Domínguez-Rodrigo

Abstract

In this paper, we apply Machine Learning (ML) algorithms to study the differences between Discoid and Centripetal Levallois methods. For this purpose, we have used experimentally knapped flint flakes, measuring several parameters that have been analyzed by seven ML algorithms. From these analyses, it has been possible to demonstrate the existence of statistically significant differences between Discoid products and Centripetal Levallois products, thus contributing with new data and a new method to this traditional debate. The new approach enabled differentiating the blanks created by both knapping methods with an accuracy >80% using only ten typometric variables. The most relevant variables were maximum length, width to the 25%, 50% and 75% of the flake length, external and internal platform angles, maximum width and number of dorsal scars. This study also demonstrates the advantages of the application of multivariate ML methods to lithic studies.

Suggested Citation

  • Irene González-Molina & Blanca Jiménez-García & José-Manuel Maíllo-Fernández & Enrique Baquedano & Manuel Domínguez-Rodrigo, 2020. "Distinguishing Discoid and Centripetal Levallois methods through machine learning," PLOS ONE, Public Library of Science, vol. 15(12), pages 1-20, December.
    • Handle: RePEc:plo:pone00:0244288
    DOI: 10.1371/journal.pone.0244288
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