کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1064475 948482 2009 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Variable selection for spatial random field predictors under a Bayesian mixed hierarchical spatial model
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی سیاست های بهداشت و سلامت عمومی
پیش نمایش صفحه اول مقاله
Variable selection for spatial random field predictors under a Bayesian mixed hierarchical spatial model
چکیده انگلیسی

A health outcome can be observed at a spatial location and we wish to relate this to a set of environmental measurements made on a sampling grid. The environmental measurements are covariates in the model but due to the interpolation associated with the grid there is an error inherent in the covariate value used at the outcome location. Since there may be multiple measurements made on different covariates there could be considerable uncertainty in the covariate values to be used. In this paper we examine a Bayesian approach to the interpolation problem and also a Bayesian solution to the variable selection issue. We present a series of simulations which outline the problem of recovering the true relationships, and also provide an empirical example.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Spatial and Spatio-temporal Epidemiology - Volume 1, Issue 1, October–December 2009, Pages 95–102
نویسندگان
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