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Least-Cost Path / Cost-Distance Analysis×CA-Markov Land-Use Change Model×GIS-baserad multipelkriterieanalys (GIS-MCDA)×Lokalisering-allokeringsmodeller×
ÄmnesområdeRumslig analysRumslig analysRumslig analysRumslig analys
FamiljProcess / pipelineProcess / pipelineProcess / pipelineProcess / pipeline
Ursprungsår1994199720061963
UpphovspersonEdsger Dijkstra (shortest path); GIS cost-surface adaptationCellular automata (Clarke) + Markov chain (Muller & Middleton)Jacek Malczewski (GIS-MCDA synthesis)Leon Cooper; S. L. Hakimi
TypRaster cost-surface routingSpatio-temporal land-use change simulationSpatial multi-criteria suitability/decision analysisSpatial facility-location optimization
UrsprungskällaDijkstra, E. W. (1959). A note on two problems in connexion with graphs. Numerische Mathematik, 1(1), 269–271. DOI ↗Clarke, K. C., Hoppen, S., & Gaydos, L. (1997). A self-modifying cellular automaton model of historical urbanization in the San Francisco Bay area. Environment and Planning B, 24(2), 247–261. DOI ↗Malczewski, J. (2006). GIS-based multicriteria decision analysis: a survey of the literature. International Journal of Geographical Information Science, 20(7), 703–726. DOI ↗Cooper, L. (1963). Location-allocation problems. Operations Research, 11(3), 331–343. DOI ↗
Aliascost-distance analysis, accumulated cost surface, least-cost corridor, en düşük maliyetli yolCA-Markov model, cellular automata Markov, land-use change simulation, CA-Markov arazi kullanımı modeliGIS-MCDM, spatial multi-criteria analysis, GIS-AHP, weighted overlay suitabilityfacility location, p-median problem, maximal covering location problem, yer-tahsis modelleri
Närliggande3344
SammanfattningLeast-cost path analysis finds the route between two locations that minimizes accumulated travel cost across a landscape, rather than minimizing straight-line distance. By encoding terrain, slope, land cover, and other frictions into a cost surface and accumulating cost outward from a source, it identifies optimal corridors for roads, pipelines, trails, power lines, and wildlife movement — a core raster-GIS technique built on Dijkstra's shortest-path logic.CA-Markov is a hybrid spatio-temporal model that projects land-use and land-cover change by combining a Markov chain — which predicts how much of each class will change — with cellular automata, which decide where that change happens. Widely used for urban-growth and land-cover forecasting, it answers both the quantity and the location of change, something neither component does well alone.GIS-MCDA combines the map layers of a geographic information system with multi-criteria decision analysis to produce suitability or priority maps — ranking locations by how well they satisfy several weighted criteria at once. It is the standard framework for spatial decisions such as siting hospitals, solar farms, landfills, or evacuation areas, integrating methods like AHP, TOPSIS, and weighted overlay with spatial data.Location-allocation models decide where to place a set of facilities and simultaneously assign demand points to them so as to optimize an objective such as total travel cost, worst-case distance, or population covered. Rooted in the operations-research work of Cooper (1963) and Hakimi (1964) and central to network GIS, they answer questions like where to site warehouses, hospitals, fire stations, or schools to best serve a spatially distributed population.
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ScholarGateJämför metoder: Least-Cost Path · CA-Markov · GIS-MCDA · Location-Allocation. Hämtad 2026-06-18 från https://scholargate.app/sv/compare