Machine learning, bootstrapping, null models, and why we are still not 100% sure which bone surface modifications were made by crocodiles

2021 ◽  
pp. 103071
Author(s):  
Shannon P. McPherron ◽  
Will Archer ◽  
Erik R. Otárola-Castillo ◽  
Melissa G. Torquato ◽  
Trevor L. Keevil
Keyword(s):  
Machine Learning ◽  
Surface Modifications ◽  
Null Models ◽  
Bone Surface

scholarly journals Author Correction: Artificial intelligence provides greater accuracy in the classification of modern and ancient bone surface modifications

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Manuel Domínguez‑Rodrigo ◽  
Gabriel Cifuentes‑Alcobendas ◽  
Blanca Jiménez‑García ◽  
Natalia Abellán ◽  
Marcos Pizarro‑Monzo ◽  
...  
Keyword(s):  
Artificial Intelligence ◽  
Surface Modifications ◽  
Bone Surface ◽  
Ancient Bone

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

scholarly journals Deep classification of cut-marks on bones from Arroyo del Vizcaíno (Uruguay)

2021 ◽  
Vol 288 (1954) ◽  
pp. 20210711
Author(s):  
Manuel Domínguez-Rodrigo ◽  
Enrique Baquedano ◽  
Luciano Varela ◽  
P. Sebastián Tambusso ◽  
María Julia Melián ◽  
...  
Keyword(s):  
Surface Modifications ◽  
Stone Tools ◽  
Bone Surface ◽  
Faunal Remains ◽  
American Continent ◽  
Cut Marks ◽  
Learning Techniques ◽  
The Last Glacial Maximum ◽  
The Last Glacial

The earliest widely accepted presence of humans in America dates to approximately 17.5 cal kyr BP, at the end of the Last Glacial Maximum (LGM). Among other evidence, this presence is attested by stone tools and associated cut-marks and other bone surface modifications (BSM), interpreted as the result of the consumption of animals by humans. Claims of an older human presence in the continent have been made based on the proposed anthropogenic modification of faunal remains; however, these have been controversial due to the highly subjective nature of the interpretations. Here, we employ advanced deep learning algorithms to objectively increase the accuracy of BSM identification on bones. With several models that exhibit BSM classification accuracies greater than 94%, we use ensemble learning techniques to robustly classify a selected sample of BSM from the approximately 30 kyr BP site of Arroyo del Vizcaíno, Uruguay. Our results confidently show the presence of cut-marks imparted by stone tools on bones at the site. This result supports an earlier presence of humans in the American continent, expanding additional genetic and archaeological evidence of a human LGM and pre-LGM presence in the continent.

Applying new technologies to the taphonomic study of La Lluera (Asturias, Spain). Geometric morphometrics and the study of bone surface modifications (BSM)

2019 ◽  
Vol 517 ◽  
pp. 107-117 ◽  
Author(s):  
Pablo López-Cisneros ◽  
Gonzalo Linares-Matás ◽  
José Yravedra ◽  
Miguel Ángel Maté-González ◽  
Verónica Estaca-Gómez ◽  
...  
Keyword(s):  
Geometric Morphometrics ◽  
New Technologies ◽  
Surface Modifications ◽  
Bone Surface
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