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GIS
1998
ACM
13 years 5 months ago
Mean-Variance Analysis of the Performance of Spatial Ordering Methods
Geographical Information Systems (GIS) involve the manipulation of large spatial data sets, and the performance of these systems is often determined by how these data sets are orga...
Akhil Kumar, Waleed A. Muhanna, Raymond A. Patters...
CGI
1998
IEEE
13 years 10 months ago
Visualizing 3-D Geographical Data with VRML
This article discusses visualizing and interacting with 3-D geographical data via VRML in the Web environment. For this purpose, the Web-based desktop VR for geographical informat...
Jie Shan
DEXA
1998
Springer
98views Database» more  DEXA 1998»
13 years 10 months ago
Browsing SGML Documents with Maps: The French "Inventaire" Experience
For GIS, SGML document servers and other highly specialized application domains, the systems integration problem is essential since the available software often is complex and wou...
Bernd Amann, Dan Vodislav, Julio Fernandes, George...
GIS
1998
ACM
13 years 5 months ago
Accuracy of Local Topographic Variables Derived from Digital Elevation Models
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...
Igor v. Florinsky
GIS
1998
ACM
13 years 5 months ago
Aoristic Crime Analysis
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...
Jerry H. Ratcliffe, Michael J. McCullagh