2674 search results - page 3 / 535 » Data Models and Query Languages for Spatial Databases |
WEBDB
1999
Springer
13 years 11 months ago
1999
Springer
SIGMOD
2000
ACM
13 years 11 months ago
2000
ACM
We consider spatio-temporal databases supporting spatial objects with continuously changing position and extent, termed moving objects databases. We formally define a data model f...
GIS
2008
ACM
14 years 8 months ago
2008
ACM
Multi-dimensional spatial data are obtained when a number of data acquisition devices are deployed at different locations to measure a certain set of attributes of the study subje...
ER
2004
Springer
14 years 25 days ago
2004
Springer
A progressive spatial query retrieves spatial data based on previous queries (e.g., to fetch data in a more restricted area with higher resolution). A direct query, on the other si...
VLDB
2004
ACM
14 years 24 days ago
2004
ACM
We study the fundamental limitations of relational algebra (RA) and SQL in supporting sequence and stream queries, and present effective query language and data model enrichments ...