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Distinguishing butchery cut marks from crocodile bite marks through machine learning methods.

Abstract：

:All models of evolution of human behaviour depend on the correct identification and interpretation of bone surface modifications (BSM) on archaeofaunal assemblages. Crucial evolutionary features, such as the origin of stone tool use, meat-eating, food-sharing, cooperation and sociality can only be addressed through confident identification and interpretation of BSM, and more specifically, cut marks. Recently, it has been argued that linear marks with the same properties as cut marks can be created by crocodiles, thereby questioning whether secure cut mark identifications can be made in the Early Pleistocene fossil record. Powerful classification methods based on multivariate statistics and machine learning (ML) algorithms have previously successfully discriminated cut marks from most other potentially confounding BSM. However, crocodile-made marks were marginal to or played no role in these comparative analyses. Here, for the first time, we apply state-of-the-art ML methods on crocodile linear BSM and experimental butchery cut marks, showing that the combination of multivariate taphonomy and ML methods provides accurate identification of BSM, including cut and crocodile bite marks. This enables empirically-supported hominin behavioural modelling, provided that these methods are applied to fossil assemblages.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Domínguez-Rodrigo M,Baquedano E

doi

10.1038/s41598-018-24071-1

subject

Has Abstract

pub_date

2018-04-10 00:00:00

pages

5786

issue

1

issn

2045-2322

pii

10.1038/s41598-018-24071-1

journal_volume

8

pub_type

杂志文章

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