Bayesian analysis (Other Keyword)
1-6 (6 Records)
The application of Bayesian analysis on radiocarbon dates from key sites in southern Mesoamerica has contributed to chronological revisions, which are leading to a re-evaluation of social processes among major political centers. Main challenges in this analysis include long occupation and mixing of old carbon in construction fills; poor preservation in the tropical environment; and the paucity of short-lived plant remains. Key steps in our application of Bayesian analysis on Mesoamerican...
Bayesian analysis of the uncertainty in the radiocarbon dating measurements (2015)
The goal of the study is to investigate the uncertainty of radiocarbon dating measurements. To study the variability of the measurements, the samples from the same specimen were sent to different radiocarbon dating labs and the estimated dates from various labs were obtained as data for analysis. Through a Baeysian analysis of the data, we could estimate the variability of the labs as well as variability between labs. SAA 2015 abstracts made available in tDAR courtesy of the Society for...
A Bayesian Approach to the Interpretation of Andean Faunal Assemblages (2017)
Zooarchaeology offers a rich source of data for exploring a number of important questions, from domestication and subsistence to ritual practices and political economy. However, issues of equifinality frequently arise, making it difficult to interpret faunal assemblages as different agents and processes may create similar archaeological signatures. Researchers are often forced to make subjective choices when suggesting preferred explanations for their data. Such approaches are subject to human...
A Hierarchical Bayesian Approach for Estimating Gini Coefficients from House Floor Area: A Case Study from Prehistoric Japan (2023)
This is an abstract from the "To Have and Have Not: A Progress Report on the Global Dynamics of Wealth Inequality (GINI) Project" session, at the 88th annual meeting of the Society for American Archaeology. Robust quantitative measures of wealth inequality are pivotal for investigating long-term social and economic changes from a comparative perspective. Notwithstanding criticisms on its reliability as a proxy of wealth inequality, the application of Gini coefficients on house size data has...
Modelling Age and Sedimentation Rates at the Page-Ladson Site (2017)
Stone tools and mastodon bones occur in an undisturbed geological context at the Page-Ladson site, Florida. Age models were created for excavation unit 50N/23E and core PLAD-AUC14-4A to estimate age ranges and sedimentation rates. The models were constructed using Bayesian models as implemented in OxCal to calibrate ages, combine equivalent age estimates, exclude outliers, and estimate deposition rates. The models were used to provide age estimates for artifacts recovered from the site,...
Resolving Patterns in Radiocarbon Data (2017)
Radiocarbon is one of the most widely used chronological tools in archaeology but resolving patterns in large datasets is still difficult to achieve. This is partly due to the calibration process which itself generates patterns reflecting the changes in the radiocarbon levels within the environment. In addition, in many cases, the difficulty in obtaining sufficient numbers of measurements to draw definitive conclusions can be an issue and there is always the danger of...