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| 역거리 가중치법 (IDW)× | 코크리깅× | |
|---|---|---|
| 분야 | 공간분석 | 공간분석 |
| 계열 | Regression model | Regression model |
| 기원 연도≠ | 1968 | 1963 |
| 창시자≠ | Donald Shepard | Georges Matheron (geostatistics); multivariate extension |
| 유형≠ | Deterministic spatial interpolation | Multivariate geostatistical interpolation |
| 원전≠ | Shepard, D. (1968). A two-dimensional interpolation function for irregularly-spaced data. Proceedings of the 23rd ACM National Conference, 517–524. DOI ↗ | Matheron, G. (1963). Principles of geostatistics. Economic Geology, 58(8), 1246–1266. DOI ↗ |
| 별칭≠ | IDW, inverse distance interpolation, Shepard's method, ters mesafe ağırlıklı enterpolasyon | co-kriging, multivariate kriging, ortak kriging |
| 관련 | 3 | 3 |
| 요약≠ | Inverse distance weighting is a simple, deterministic method for estimating values at unsampled locations by taking a weighted average of nearby measured points, where closer points carry more weight. Introduced by Donald Shepard in 1968, it embodies the first law of geography — near things are more related than distant things — and is one of the most widely used interpolation methods in GIS for mapping continuous fields such as rainfall, elevation, or pollution from scattered samples. | 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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