So sánh phương pháp

	Mô hình Phân bổ-Địa điểm	Mô hình Tương tác Không gian (Trọng lực)
Lĩnh vực	Phân tích không gian	Phân tích không gian
Họ	Process / pipeline	Regression model
Năm ra đời	1963	1971
Người khởi xướng	Leon Cooper; S. L. Hakimi	Alan Wilson (entropy-maximizing family)
Loại	Spatial facility-location optimization	Model of flows between spatial origins and destinations
Công trình gốc	Cooper, L. (1963). Location-allocation problems. Operations Research, 11(3), 331–343.	Wilson, A. G. (1971). A family of spatial interaction models, and associated developments. Environment and Planning A, 3(1), 1–32.
Tên gọi khác	facility location, p-median problem, maximal covering location problem, yer-tahsis modelleri	gravity model, spatial interaction model, competing destinations model, mekânsal etkileşim modeli
Liên quan	4	4
Tóm tắt	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.	Spatial interaction models predict the volume of flows — migrants, commuters, shoppers, trade, trips — between origins and destinations as a function of the size of each place and the distance or cost separating them. By analogy to Newton's gravity, interaction rises with the 'mass' of origin and destination and falls with separation, and Wilson's 1971 entropy-maximizing family put these models on a rigorous footing for transport, migration, and retail analysis.