320 search results - page 3 / 64 » A Theory of Spatio-Temporal Database Queries |
ICDE
2008
IEEE
14 years 7 months ago
2008
IEEE
Content-based retrieval of spatio-temporal patterns from human motion databases is inherently nontrivial since finding effective distance measures for such data is difficult. These...
ICDE
2008
IEEE
14 years 7 months ago
2008
IEEE
We introduce a convoy query that retrieves all convoys from historical trajectories, each of which consists of a set of objects that travelled closely during a certain time period....
DASFAA
2011
IEEE
12 years 9 months ago
2011
IEEE
Spatio-temporal uncertainty is a special feature of moving objects due to the inability of precisely capturing or predicting their continuously changing locations. Indeterminate lo...
VL
1999
IEEE
13 years 10 months ago
1999
IEEE
In this paper we propose a visual interface for the specification of predicates to be used in queries on spatio-temporal databases. The approach is based on a visual specification...
ICDE
2004
IEEE
14 years 7 months ago
2004
IEEE
Several spatio-temporal applications require the retrieval of summarized information about moving objects that lie in a query region during a query interval (e.g., the number of m...