Spatial Regression Models Using Inter-Region Distances in a Non-Random Context |
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| Authors: | Nicolas Christou Gary Simon |
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| Institution: | 1. Department of Statistics , University of California, Los Angeles , Los Angeles, California, USA nchristo@stat.ucla.edu;3. IOMS – Statistics Group, Leonard N. Stern School of Business , New York University , New York, New York, USA |
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| Abstract: | This article considers spatial data z( s 1), z( s 2),…, z( s n ) collected at n locations, with the objective of predicting z( s 0) at another location. The usual method of analysis for this problem is kriging, but here we introduce a new signal-plus-noise model whose essential feature is the identification of hot spots. The signal decays in relation to distance from hot spots. We show that hot spots can be located with high accuracy and that the decay parameter can be estimated accurately. This new model compares well to kriging in simulations. |
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| Keywords: | Hot spot Kriging Spatial prediction Variogram |
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