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| Robust Universal Kriging× | Kriging Ordinario× | |
|---|---|---|
| Campo | Analisi spaziale | Analisi spaziale |
| Famiglia | Regression model | Regression model |
| Anno di origine≠ | 1980s–1990s | 1963 |
| Ideatore≠ | Developed through contributions of Cressie, Genton, and Rousseeuw in geostatistics and robust statistics | Georges Matheron (formalising D.G. Krige's empirical work) |
| Tipo≠ | Spatial interpolation model | Geostatistical interpolation |
| Fonte seminale≠ | Cressie, N. A. C. (1993). Statistics for Spatial Data (revised ed.). Wiley-Interscience, New York. ISBN: 978-0471002550 | Matheron, G. (1963). Principles of geostatistics. Economic Geology, 58(8), 1246-1266. DOI ↗ |
| Alias | RUK, robust kriging with external drift, outlier-resistant universal kriging, robust geostatistical regression kriging | OK, kriging interpolation, geostatistical interpolation, BLUE spatial predictor |
| Correlati | 4 | 4 |
| Sintesi≠ | Robust Universal Kriging (RUK) is a geostatistical interpolation method that combines a spatially varying deterministic trend with a stochastic residual surface, while using robust estimators to protect the variogram and trend coefficients from the distorting influence of outlying observations. | Ordinary Kriging (OK) is the standard geostatistical method for interpolating a continuous spatial variable at unsampled locations. It derives optimal, unbiased weights from the spatial covariance structure of the data, making it the Best Linear Unbiased Predictor (BLUP) under stationarity assumptions. Unlike simpler distance-based methods, it also provides a prediction uncertainty (kriging variance) at every interpolated point. |
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