Sampling variability and centrality score comparisons in archaeological network analysis: A case study of the San Pedro Valley, Arizona

Sampling variability and centrality score comparisons in archaeological network analysis: A case study of the San Pedro Valley, Arizona
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考古网络分析中的抽样变异性和中心性得分比较:亚利桑那州圣佩德罗谷的案例研究

DOI:
10.1016/j.jasrep.2023.104100
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发表时间:
2023
期刊:
Journal of Archaeological Science: Reports
影响因子:
--
通讯作者:
Mills, Barbara J.
Mills, Barbara J.
中科院分区:
--
文献类型:
--
作者:
Roberts, John M.;Dorshorst, Emily;Yin, Yi;Peeples, Matthew A.;Breiger, Ronald L.;Mills, Barbara J.

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考古网络分析通常集中在网络中,在这些网络中,地点之间的联系反映了某种相似性,例如在人工制品组合中。站点中心性通常是令人感兴趣的,但是一旦考虑到采样可变性,两个站点中心性的明显差异可能没有意义。我们研究了美国西南部圣佩德罗山谷一组晚期前西班牙考古遗址中心性分数的抽样可变性的自举评估,其中陶瓷组合数据可以转化为陶瓷相似性网络。我们考虑了网站特征向量中心性得分的各种自举置信区间以及这些区间对网站结构重要性解释的含义。在圣佩德罗谷CE 1300-1349的分析中,站点中心性的小差异没有统计学意义,但中等到较大的差异具有统计学意义,结论与构建bootstrap置信区间的方法一致。在考察山谷所在的更广泛地区时,类似的模式也很明显。看来,对地点中心性差异的实质性解释往往是合理的。
Archaeological network analysis often focuses on networks in which ties between sites reflect some sort of similarity, such as in artifact assemblages. Site centrality is often of interest, but an apparent difference in two sites’ centrality may not be meaningful once sampling variability is considered. We investigate bootstrap assessments of sampling variability in centrality scores of a set of late pre-Hispanic archaeological sites in the San Pedro Valley, U.S. Southwest, for which ceramic assemblage data can be transformed into networks of ceramic similarity. We considered a variety of bootstrap confidence intervals for site eigenvector centrality scores and the implications of these intervals for interpretation of the site’s structural importance. In analysis of the San Pedro Valley for CE 1300–1349, small differences among site centrality were not statistically distinguishable, but moderate to large differences were, with conclusions consistent across methods of constructing bootstrap confidence intervals. Similar patterns were evident when examining a broader region in which the Valley is located. It appears that substantive interpretation of site centrality differences often will be justified.
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