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| الارتباط التلقائي المكاني العام× | تحليل النقاط الساخنة (Getis-Ord Gi*)× | |
|---|---|---|
| المجال | التحليل المكاني | التحليل المكاني |
| العائلة | Regression model | Regression model |
| سنة النشأة≠ | 1950 | 1992 |
| صاحب الطريقة≠ | P. A. P. Moran (Moran's I, 1950); generalized by Luc Anselin | Arthur Getis and J. Keith Ord |
| النوع≠ | Spatial statistic / hypothesis test | Local spatial statistic |
| المصدر التأسيسي≠ | Moran, P. A. P. (1950). Notes on continuous stochastic phenomena. Biometrika, 37(1/2), 17–23. DOI ↗ | Getis, A., & Ord, J. K. (1992). The analysis of spatial association by use of distance statistics. Geographical Analysis, 24(3), 189-206. DOI ↗ |
| الأسماء البديلة | global spatial dependence, global Moran's I, GSA, global spatial clustering measure | Getis-Ord Gi* statistic, spatial hot spot detection, cluster and outlier analysis, HSA |
| ذات صلة≠ | 6 | 5 |
| الملخص≠ | Global Spatial Autocorrelation measures the degree to which similar values cluster together across an entire study area. Rather than identifying where clusters occur, it yields a single summary statistic — most commonly Moran's I — that quantifies whether spatial proximity coincides with value similarity, dissimilarity, or randomness across all observations simultaneously. | 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. |
| ScholarGateمجموعة البيانات ↗ |
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