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| Δείκτες Χωροχρονικής Τοπικής Χωρικής Συσχέτισης (ST-LISA)× | Ανάλυση Θερμών Σημείων (Getis-Ord Gi*)× | |
|---|---|---|
| Πεδίο | Χωρική Ανάλυση | Χωρική Ανάλυση |
| Οικογένεια | Regression model | Regression model |
| Έτος προέλευσης≠ | 1995 (LISA); space-time extensions developed 2000s–2010s | 1992 |
| Δημιουργός≠ | Extension of Anselin (1995) LISA framework to the space-time domain | Arthur Getis and J. Keith Ord |
| Τύπος≠ | Local spatial statistic (space-time) | Local spatial statistic |
| Θεμελιώδης πηγή≠ | Anselin, L. (1995). Local indicators of spatial association — LISA. Geographical Analysis, 27(2), 93–115. DOI ↗ | Getis, A., & Ord, J. K. (1992). The analysis of spatial association by use of distance statistics. Geographical Analysis, 24(3), 189-206. DOI ↗ |
| Εναλλακτικές ονομασίες | ST-LISA, space-time LISA, spatiotemporal local indicators of spatial association, STLISA | Getis-Ord Gi* statistic, spatial hot spot detection, cluster and outlier analysis, HSA |
| Συναφείς≠ | 6 | 5 |
| Σύνοψη≠ | Space-Time Local Indicators of Spatial Association (ST-LISA) extend the classic LISA framework of Anselin (1995) into the temporal dimension, identifying locations that exhibit statistically significant spatial clustering or spatial outlier behavior consistently or intermittently across multiple time periods. They decompose global space-time autocorrelation into local contributions, revealing where and when spatial clusters emerge, persist, or dissolve. | 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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