Articles producció científica> Història i Història de l'Art

Multiple approaches to predicting flake mass

  • Identification data

    Identifier: imarina:9287526
    Handle: https://hdl.handle.net/20.500.11797/imarina9287526
    Authors:
    Guillermo Bustos-Pérez, Javier Baena Preysler
    Abstract:
    Predicting original flake mass is a major goal of lithic analysis. Predicting original flake mass allows for re- searchers to make estimations of remaining mass, lost mass, and other features. All these measures relate to the organization of lithic technology by past societies. The present work tests three different models to predict log of flake mass: multiple linear regression, random forest regression, and artificial neural networks (ANN). Estima- tions of flake mass were performed using the remaining features of flakes from an experimental assemblage. This assemblage was obtained by the expansion of a previous dataset through the inclusion of bigger flakes, allowing the analysis to account for the effects of sample size and value distribution. Correlation results show a large/ strong relation between predictions and real outcome (r2 = 0.78 in the best case). Comparison of the models affords insights into variable importance for predicting flake mass. Results show that (for the present dataset) multiple linear regression still stands as the best method for predicting log of flake weight. Additionally, transformation of predicted values from the multiple linear regression and true values to the linear scale re- inforces the linear correlation above the 0.8 threshold.

  • Others:

    Author, as appears in the article.: Guillermo Bustos-Pérez, Javier Baena Preysler
    Papper version: info:eu-repo/semantics/publishedVersion
    Department: Història i Història de l'Art
    APA: Bustos-Pérez, G., & Baena Preysler, J. (2022). Multiple approaches to predicting flake mass. Journal of Archaeological Science: Reports, 46, 103698. https://doi.org/10.1016/j.jasrep.2022.103698
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    URV's Author/s: Bustos-Pérez, Guillermo
    Abstract: Predicting original flake mass is a major goal of lithic analysis. Predicting original flake mass allows for re- searchers to make estimations of remaining mass, lost mass, and other features. All these measures relate to the organization of lithic technology by past societies. The present work tests three different models to predict log of flake mass: multiple linear regression, random forest regression, and artificial neural networks (ANN). Estima- tions of flake mass were performed using the remaining features of flakes from an experimental assemblage. This assemblage was obtained by the expansion of a previous dataset through the inclusion of bigger flakes, allowing the analysis to account for the effects of sample size and value distribution. Correlation results show a large/ strong relation between predictions and real outcome (r2 = 0.78 in the best case). Comparison of the models affords insights into variable importance for predicting flake mass. Results show that (for the present dataset) multiple linear regression still stands as the best method for predicting log of flake weight. Additionally, transformation of predicted values from the multiple linear regression and true values to the linear scale re- inforces the linear correlation above the 0.8 threshold.
    Journal publication year: 2022
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    Author identifier: 0000-0002-1089-818X
    Publication Type: info:eu-repo/semantics/article