1430 search results - page 32 / 286 » Query operations for moving objects database systems |
JCST
2007
13 years 8 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
2000
ACM
14 years 12 days ago
2000
ACM
Uncertainty management for geometric data is currently an important problem for (extensible) databases in general and for spatial databases, image databases, and GIS in particular...
KDD
2009
ACM
14 years 9 months ago
2009
ACM
Lately there exist increasing demands for online abnormality monitoring over trajectory streams, which are obtained from moving object tracking devices. This problem is challengin...
EWDW
1994
14 years 27 days ago
1994
For object-oriented databases we propose a new technique for optimizing queries containing method invocations. This technique is based on the definition of inverse methods and que...
ICDE
2009
IEEE
14 years 10 months ago
2009
IEEE
Abstract-- In sensor environments and moving robot applications, the position of an object is often known imprecisely because of measurement error and/or movement of the object. In...