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Identifying non-anthropogenic accumulation in zooarchaeological assemblages using naive Bayesian classifier: A trace-oriented actualistic taphonomic approach in the hyperarid coasts of the Atacama desert
Indexado
WoS WOS:001111601900001
Scopus SCOPUS_ID:85176420311
DOI 10.1016/J.QSA.2023.100143
Año 2024
Tipo artículo de investigación

Citas Totales

Autores Afiliación Chile

Instituciones Chile

% Participación
Internacional

Autores
Afiliación Extranjera

Instituciones
Extranjeras


Abstract



The taphonomic evaluation of zooarchaeological assemblages is paramount for compelling interpretations of past subsistence strategies, palaeoecological interactions and overall biasing of the anthropogenic bone deposition and modification by non-anthropogenic agents. A recent trend in this field, has focused on bone surface modifications (BSM) to successfully generate reference frameworks for critical evaluation of the interpretive potential of selected zooarchaeological samples by examining BSM patterns produced by known agents in experimental settings. These approaches compare anthropogenic and non-human generated patterns using different machine learning (ML) algorithms, classifying and assigning sets of traces to specific processes such as gnawing, scoring or intentional fracture. We propose a simplification in two key aspects to make this new arising area of ML assisted taphonomic interpretation more accessible for zooarchaeologists. First, we encourage a trace oriented multivariate data recording protocol for taphonomic analysis including the most commonly recorded BSM plus others such as shape modification, penetrative modification and element or tissue loss modifications thus expanding comparative potential. Second, we offer a ML approach based on Naive Bayes Classifier (NBC) that discriminates each given observation by comparing to actualistic taphonomic patterns to determine the average percentage of non-anthropogenic modification within zooarchaeological samples. To illustrate the potential value of these proposals for taphonomical interpretation, we analyzed seven different Mid to Late Holocene assemblages containing avian and mammal remains from the coastal platform in the hyperarid core of the Atacama Desert. We compared their alteration with a local sample of actualistic data recovered to characterize regional taphonomic patterns. A NBC was trained with a 75% random selection of the total archaeological and actualistic samples. Afterwards we tested the remaining sample, achieving over 90% accuracy in determining whether a random specimen from any sample corresponded to an actualistic or an archaeological context implying key differences in taphonomic trace patterns.

Revista



Revista ISSN
2666-0334

Métricas Externas



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Disciplinas de Investigación



WOS
Geosciences, Multidisciplinary
Geography, Physical
Scopus
Sin Disciplinas
SciELO
Sin Disciplinas

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Publicaciones WoS (Ediciones: ISSHP, ISTP, AHCI, SSCI, SCI), Scopus, SciELO Chile.

Colaboración Institucional



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Autores - Afiliación



Ord. Autor Género Institución - País
1 Yrarrazaval, Sebastian Hombre Millennium Nucleus Ocean Heritage & Culture OHC - Chile
Univ Rovira i Virgili - España
Heritage and Culture (OHC) - Chile
Universitat Rovira i Virgili - España
2 Cartajena, Isabel - Millennium Nucleus Ocean Heritage & Culture OHC - Chile
Universidad de Chile - Chile
Heritage and Culture (OHC) - Chile
3 Borrero, Luis A. Hombre IMHICIHU - Argentina
Consejo Nacional de Investigaciones Científicas y Técnicas - Argentina
Instituto Multidisciplinario de Historia y ​Ciencias Humanas - Argentina
4 SALAZAR-SUTIL, DIEGO RODRIGO Hombre Universidad de Chile - Chile

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Financiamiento



Fuente
FONDECYT
Fondo Nacional de Desarrollo Científico y Tecnológico
Millennium Science Initiative Program Ocean, Heritage and Culture
Heritage and Culture

Muestra la fuente de financiamiento declarada en la publicación.

Agradecimientos



Agradecimiento
This work was funded by FONDECYT Project [1151203] and the Millennium Science Initiative Program [NCS2021_040] Ocean, Heritage and Culture.
This work was funded by FONDECYT Project [ 1151203 ] and the Millennium Science Initiative Program [ NCS2021_040 ] Ocean, Heritage and Culture.

Muestra la fuente de financiamiento declarada en la publicación.