Regression of exchangeable relational arrays
Regression of exchangeable relational arrays
复制标题
可交换关系数组的回归
DOI:
10.1093/biomet/asac031
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发表时间:
2022
期刊:
影响因子:
2.7
通讯作者:
Mccormick, T H
中科院分区:
文献类型:
--
作者:
Marrs, F W;Fosdick, B K;Mccormick, T H
Relational arrays represent measures of association between pairs of actors, often in varied contexts or over time. Trade flows between countries, financial transactions between individuals, contact frequencies between school children in classrooms and dynamic protein-protein interactions are all examples of relational arrays. Elements of a relational array are often modelled as a linear function of observable covariates. Uncertainty estimates for regression coefficient estimators, and ideally the coefficient estimators themselves, must account for dependence between elements of the array, e.g., relations involving the same actor. Existing estimators of standard errors that recognize such relational dependence rely on estimating extremely complex, heterogeneous structure across actors. This paper develops a new class of parsimonious coefficient and standard error estimators for regressions of relational arrays. We leverage an exchangeability assumption to derive standard error estimators that pool information across actors, and are substantially more accurate than existing estimators in a variety of settings. This exchangeability assumption is pervasive in network and array models in the statistics literature, but not previously considered when adjusting for dependence in a regression setting with relational data. We demonstrate improvements in inference theoretically, via a simulation study, and by analysis of a dataset involving international trade.
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DOI:
10.2139/ssrn.3196966
发表时间:
2016
期刊:
Econometric Modeling: Macroeconomics eJournal
影响因子:
--
作者:
F. Aleskerov;N. Meshcheryakova;Anna Rezyapova;Sergey Shvydun
通讯作者:
Sergey Shvydun
影响因子:
5.4
作者:
Aronow, Peter M.;Samii, Cyrus;Assenova, Valentina A.
通讯作者:
Assenova, Valentina A.
影响因子:
3.6
作者:
M. Ward;P. Hoff
通讯作者:
P. Hoff
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
北泰行;他
通讯作者:
他
DOI:
10.1016/j.physa.2008.01.050
发表时间:
2008-06-15
影响因子:
3.3
作者:
Fagiolo, Giorgio;Reyes, Javier;Schiavo, Stefano
通讯作者:
Schiavo, Stefano