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| Indexado |
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| DOI | 10.1214/20-EJS1719 | ||||
| Año | 2020 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
In spatial statistics, the screening effect historically refers to the situation when the observations located far from the predictand receive a small (ideally, zero) kriging weight. Several factors play a crucial role in this phenomenon: among them, the spatial design, the dimension of the spatial domain where the observations are defined, the mean-square properties of the underlying random field and its covariance function or, equivalently, its spectral density. The tour de force by Michael L. Stein provides a formal definition of the screening effect and puts emphasis on the Matérn covariance function, advocated as a good covariance function to yield such an effect. Yet, it is often recommended not to use covariance functions with a compact support. This paper shows that some classes of covariance functions being compactly supported allow for a screening effect according to Stein’s definition, in both regular and irregular settings of the spatial design. Further, numerical experiments suggest that the screening effect under a class of compactly supported covariance functions is even stronger than the screening effect under a Matérn model.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Porcu, Emilio | Hombre |
Trinity College Dublin - Irlanda
Trinity Coll Dublin - Irlanda |
| 2 | Zastavnyi, Viktor | Hombre |
Vasyl' Stus Donetsk National University - Ucrania
Donetsk Natl Univ - Ucrania Vasyl‘ Stus Donetsk National University - Ucrania |
| 3 | Bevilacqua, Moreno | Hombre |
Universidad de Valparaíso - Chile
|
| 4 | Emery, Xavier M. | Hombre |
Advanced Mining Technology Center - Chile
Universidad de Chile - Chile Centro Avanzado de Tecnologia para la Mineria - Chile |
| Fuente |
|---|
| Fondo Nacional de Desarrollo Científico y Tecnológico |
| Comisión Nacional de Investigación Científica y Tecnológica |
| Chilean Ministry of Education |
| Ministerio de Economía, Fomento y Turismo, Chile |
| Comisión Nacional de Investigación CientÃfica y Tecnológica |
| Fondo Nacional de Desarrollo Científico, Tecnológico y de Innovación Tecnológica |
| Fondo Nacional de Desarrollo CientÃfico, Tecnológico y de Innovación Tecnológica |
| Ministry of Economy, Development, and Tourism |
| Millenium Nucleus Center |
| National Agency for Research and Development |
| National Agency for Research and Development of Chile |
| Millennium Science Initiative of the Chilean Ministry of Economy, Development, and Tourism, through grant "Millenium Nucleus Center for the Discovery of Structures in Complex Data" |
| grant Fondecyt from Chilean Ministry of Education |
| Agenția Națională pentru Cercetare și Dezvoltare |
| Agradecimiento |
|---|
| The authors are grateful to the Associate Editor and to an anonymous reviewer for their constructive comments and acknowledge the support of the Millennium Science Initiative of the Chilean Ministry of Economy, Development, and Tourism, through grant “Millenium Nucleus Center for the Discovery of Structures in Complex Data” (Emilio Porcu and Moreno Bevilacqua), of the National Agency for Research and Development of Chile, through grant CONICYT PIA AFB180004 (Xavier Emery) and grant Fondecyt number 1200068 from Chilean Ministry of Education (Moreno Bevilacqua). |
| The authors are grateful to the Associate Editor and to an anonymous reviewer for their constructive comments and acknowledge the support of the Millennium Science Initiative of the Chilean Ministry of Economy, Development, and Tourism, through grant "Millenium Nucleus Center for the Discovery of Structures in Complex Data" (Emilio Porcu and Moreno Bevilacqua), of the National Agency for Research and Development of Chile, through grant CONICYT PIA AFB180004 (Xavier Emery) and grant Fondecyt number 1200068 from Chilean Ministry of Education (Moreno Bevilacqua). |