122 search results - page 3 / 25 » Quality-driven approximate methods for integrating GIS data |
GISCIENCE
2004
Springer
13 years 11 months ago
2004
Springer
In geospatial applications with heterogeneous databases, an ontology-driven approach to data integration relies on the alignment of the concepts of a global ontology that describe ...
GIS
2007
ACM
14 years 6 months ago
2007
ACM
Handling streams of positional updates from numerous moving objects has become a challenging task for many monitoring applications. Several algorithms have been recently proposed ...
GIS
2005
ACM
14 years 6 months ago
2005
ACM
Group nearest neighbor (GNN) queries are a relatively new type of operations in spatial database applications. Different from a traditional kNN query which specifies a single quer...
GIS
2003
ACM
14 years 6 months ago
2003
ACM
We present a technique for creating a digital elevation model (DEM) from grid-based contour data. The method computes new, intermediate contours in between existing isolines. Thes...
GISCIENCE
2008
Springer
13 years 6 months ago
2008
Springer
Geospatial data sharing is an increasingly important subject as large amount of data is produced by variety of sources, stored in incompatible formats, and accessible through diffe...