980 search results - page 119 / 196 » GIS |
GIS
2002
ACM
14 years 9 months ago
2002
ACM
Despite the recognition of cellular automata (CA) as a exible and powerful tool for urban growth simulation, the calibration of CA had been largely heuristic until recent eVorts to...
GIS
2002
ACM
14 years 9 months ago
2002
ACM
This papers deals with multiway spatial joins when (i) there is limited time for query processing and the goal is to retrieve the best possible solutions within this limit (ii) the...
GIS
1998
ACM
14 years 9 months ago
1998
ACM
We study the accuracy of data on some local topographic attributes derived from digital elevation models (DEMs). First, we carry out a test for the precision of four methods for ca...
GIS
1998
ACM
14 years 9 months ago
1998
ACM
Abstract. Crime pattern analysis has tended to focus on `hotspot’ analysis techniques; the identi® cation of areas with higher densities of criminal activity. This paper documen...
GIS
1998
ACM
14 years 9 months ago
1998
ACM
Spatial relations are the basis for many selections users perform when they query geographic information systems (GISs). Although such query languages use natural-language-like te...