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| Multiskalige Getis-Ord Gi*-Hot-Spot-Analyse× | Hot Spot Analysis (Getis-Ord Gi*)× | |
|---|---|---|
| Fachgebiet | Räumliche Analyse | Räumliche Analyse |
| Familie | Regression model | Regression model |
| Entstehungsjahr≠ | 1995 (Gi* basis); multiscale application 2000s onward | 1992 |
| Urheber≠ | Ord & Getis (1995); multiscale extension developed in applied spatial analysis practice | Arthur Getis and J. Keith Ord |
| Typ≠ | Local spatial statistic (multiscale) | Local spatial statistic |
| Wegweisende Quelle≠ | Ord, J. K., & Getis, A. (1995). Local spatial autocorrelation statistics: Distributional issues and an application. Geographical Analysis, 27(4), 286-306. DOI ↗ | Getis, A., & Ord, J. K. (1992). The analysis of spatial association by use of distance statistics. Geographical Analysis, 24(3), 189-206. DOI ↗ |
| Aliasnamen | multi-distance Gi*, multiscale hot spot analysis, multi-bandwidth Getis-Ord, scale-varying Gi* | Getis-Ord Gi* statistic, spatial hot spot detection, cluster and outlier analysis, HSA |
| Verwandt | 5 | 5 |
| Zusammenfassung≠ | Multiscale Getis-Ord Gi* extends the classic local hot spot statistic by computing Gi* z-scores across a range of spatial distance bands or neighborhood sizes. This reveals whether clusters of high or low values are scale-dependent — appearing only at fine local scales, only at broad regional scales, or persistently across all scales — providing richer spatial intelligence than a single-bandwidth analysis. | Hot Spot Analysis uses the Getis-Ord Gi* local spatial statistic to identify geographic locations where high or low attribute values cluster together to a degree that is statistically significant. Each feature is evaluated in relation to its neighbours, producing a z-score that flags genuine spatial hot spots and cold spots against a background of random variation. |
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