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| Mô phỏng địa thống kê có điều kiện× | Cokriging× | |
|---|---|---|
| Lĩnh vực | Phân tích không gian | Phân tích không gian |
| Họ | Regression model | Regression model |
| Năm ra đời≠ | 1997 | 1963 |
| Người khởi xướng≠ | Pierre Goovaerts; geostatistics tradition | Georges Matheron (geostatistics); multivariate extension |
| Loại≠ | Stochastic spatial simulation | Multivariate geostatistical interpolation |
| Công trình gốc≠ | Goovaerts, P. (1997). Geostatistics for Natural Resources Evaluation. Oxford University Press. ISBN: 978-0-19-511538-3 | Matheron, G. (1963). Principles of geostatistics. Economic Geology, 58(8), 1246–1266. DOI ↗ |
| Tên gọi khác≠ | Sequential Gaussian Simulation, SGS, Stochastic Simulation, Koşullu Simülasyon | co-kriging, multivariate kriging, ortak kriging |
| Liên quan≠ | 2 | 3 |
| Tóm tắt≠ | Conditional Geostatistical Simulation — most commonly implemented as Sequential Gaussian Simulation (SGS) — generates multiple stochastic realizations of a spatial random field that are each consistent with observed sample data and with a fitted variogram model. Unlike kriging, which produces a single smoothed estimate, SGS reproduces the full spatial variability of the phenomenon. It is widely used by geoscientists, mining engineers, petroleum engineers, and environmental scientists who need to propagate spatial uncertainty through downstream models. | Cokriging extends kriging to use one or more correlated secondary variables to improve prediction of a primary variable. When the variable of interest is sparsely sampled but a related, cheaper-to-measure variable is densely sampled, cokriging borrows strength from the secondary variable through their cross-correlation, yielding more accurate interpolations and prediction variances than kriging the primary variable alone. |
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