Bayesian calibration (Other Keyword)
1-4 (4 Records)
This is an abstract from the "Supporting Practical Inquiry: The Past, Present, and Future Contributions of Thomas Dye" session, at the 88th annual meeting of the Society for American Archaeology. Tom Dye was an early adopter and advocate for the application of Bayesian chronological modeling in Pacific archaeology. Since the 1990s, this chronology-building method has advanced our understanding of key cultural and demographic events through improved and diverse software options, better...
Late Holocene Human Expansion into Near and Remote Oceania: A Bayesian Model-Based Comparison of the Chronologies of the Mariana Islands and Lapita Settlement (2016)
Carson and colleagues have argued that the settlement of the Mariana Islands ~3500 cal BP marks the first major human expansion in the Western Pacific during the late Holocene. If this settlement date is correct, it would be the initial population movement beyond the Near Oceania and Island Southeast Asia region, an area occupied by modern humans for 40,000+ years. The previous consensus gave precedence to the rapid Lapita expansion throughout Near Oceania at generally the same time, followed a...
Quantifying the Number of 14C Determinations Required to Improve Dating Accuracy for Lapita Deposits (2017)
The use of radiocarbon dating to calculate the dates of Lapita deposits remains largely a single-step, ad hoc procedure. The accuracy of dating results can be greatly improved through Bayesian modeling. However, this depends on the number and stratigraphic distribution of radiocarbon determinations and the shape of the calibration curve. To evaluate these issues, we used Oxcal 4.2 to simulate, through the process of back-calibration, radiocarbon determinations that we could expect to receive as...
Warming to the Tempo of Change in Old Hawai`i (2017)
Archaeologists sometimes claim that the refined chronologies yielded by Bayesian calibration make it possible to distinguish between Levi-Strauss's "hot" and "cold" societies. Historians of Hawai`i leave little doubt that Hawai`i was a "hot" society in the early historic period. A review and comparison of chronologies for the tempo of change in pre-Contact Hawai`i distinguishes the "cold" society reconstituted by ad hoc methods from the "hot" society reconstituted by the Bayesian method. We...