Clustering of calibrated radiocarbon dates: Site-specific chronological sequences identified by dense radiocarbon sampling

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985912%3A_____%2F21%3A00545419" target="_blank" >RIV/67985912:_____/21:00545419 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11210/20:10421206

Výsledek na webu

<a href="https://doi.org/10.1017/RDC.2020.129" target="_blank" >https://doi.org/10.1017/RDC.2020.129</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1017/RDC.2020.129" target="_blank" >10.1017/RDC.2020.129</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Clustering of calibrated radiocarbon dates: Site-specific chronological sequences identified by dense radiocarbon sampling

Popis výsledku v původním jazyce

Calibrated radiocarbon (C-14) determinations are commonly used in archaeology to assign calendar dates to a site's chronological phases identified based on additional evidence such as stratigraphy. In the absence of such evidence, we can perform dense C-14 sampling of the site to attempt to identify periods of heightened activity, separated by periods of inactivity, which correspond to archaeological phases and gaps between them. We propose a method to achieve this by hierarchical cluster analysis of the calibrated C-14 dates, followed by testing of the different clustering solutions for consistency based on silhouette coefficient and statistical significance using randomization. Separate events identified in such a way can then be regarded as evidence for distinct phases of activity and used to construct a site-specific sequence. This can be in turn used as a Bayesian prior to further narrow down the distributions of the calibrated C-14 dates. We assessed the validity of the method using simulated data as well as real-life archaeological data from the Bronze Age settlement of Troy. A Python implementation of the method is available online at https://github.com/demjanp/clustering_14C.

Název v anglickém jazyce

Clustering of calibrated radiocarbon dates: Site-specific chronological sequences identified by dense radiocarbon sampling

Popis výsledku anglicky

Calibrated radiocarbon (C-14) determinations are commonly used in archaeology to assign calendar dates to a site's chronological phases identified based on additional evidence such as stratigraphy. In the absence of such evidence, we can perform dense C-14 sampling of the site to attempt to identify periods of heightened activity, separated by periods of inactivity, which correspond to archaeological phases and gaps between them. We propose a method to achieve this by hierarchical cluster analysis of the calibrated C-14 dates, followed by testing of the different clustering solutions for consistency based on silhouette coefficient and statistical significance using randomization. Separate events identified in such a way can then be regarded as evidence for distinct phases of activity and used to construct a site-specific sequence. This can be in turn used as a Bayesian prior to further narrow down the distributions of the calibrated C-14 dates. We assessed the validity of the method using simulated data as well as real-life archaeological data from the Bronze Age settlement of Troy. A Python implementation of the method is available online at https://github.com/demjanp/clustering_14C.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

60102 - Archaeology

Projekt

<a href="/cs/project/EF16_019%2F0000728" target="_blank" >EF16_019/0000728: Výzkum ultrastopových izotopů a jejich využití v sociálních a environmentálních vědách urychlovačovou hmotnostní spektrometrií</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Radiocarbon

ISSN

0033-8222

e-ISSN

1945-5755

Svazek periodika

63

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

429-438

Kód UT WoS článku

000637332900003

EID výsledku v databázi Scopus

2-s2.0-85103858167