81 search results - page 12 / 17 » Modeling and Querying Vague Spatial Objects Using Shapelets |
ADBIS
2010
Springer
14 years 11 months ago
2010
Springer
Abstract. The need for location-based services has motivated an important research effort in the efficient processing of location-dependent queries. Most of the existing approaches...
JCST
2007
14 years 9 months ago
2007
Abstract Advances in wireless sensor networks and positioning technologies enable new applications monitoring moving objects. Some of these applications, such as traffic managemen...
GIS
2009
ACM
15 years 2 months ago
2009
ACM
Apart from visualization tasks, three-dimensional (3D) data management features are not or only hardly available in current spatial database systems and Geographic Information Sys...
DEXAW
2000
IEEE
15 years 2 months ago
2000
IEEE
Current models for cardinal directions, such as north and northeast, are either point-based or region-based, but no models exist that apply equally, independent of the geometric d...
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CAISE
1998
Springer
15 years 2 months ago
1998
Springer
We show how model extensibility of object-oriented data management systems can be achieved through the combination of a highlevel core object data model and an architecture designe...