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Validating Geospatial Regression Models With Bootstrapping, Lam T. Tran, Phoebe Tran
Validating Geospatial Regression Models With Bootstrapping, Lam T. Tran, Phoebe Tran
International Journal of Geospatial and Environmental Research
Spatial statistical models have been used extensively in many geospatial and environmental studies over several decades. While being very important, the issues of testing and validation in spatial statistical models are rarely investigated carefully in spatial environmental studies. Often strict theoretical asymptotic assumptions used in those models are left unexplored or unanswered in many studies. This study is to explore if bootstrapping is capable of providing more realistic statistical inference for spatial regression models while dealing with several common issues with spatial data, such as spatial dependence and unknown heteroscedasticity. With experiments on both simulated and real-world datasets, the study …