6846 search results - page 166 / 1370 » Querying a summary of database |
155
click to vote
AVI
2000
15 years 7 months ago
2000
To support users in querying geographic databases we have developed a system that lets people sketch what they are looking for. It closes the gap between user and information syst...
282
click to vote
ICDE
2006
IEEE
16 years 7 months ago
2006
IEEE
Current approaches for answering queries with imprecise constraints require user-specific distance metrics and importance measures for attributes of interest - metrics that are ha...
151
click to vote
ICDT
2007
ACM
16 years 18 days ago
2007
ACM
Moving objects produce trajectories. We describe a data model for trajectories and trajectory samples and an efficient way of modeling uncertainty via beads for trajectory samples....
189
click to vote
ADC
2006
Springer
16 years 13 days ago
2006
Springer
Query answering over OWLs and RDFs on the Semantic Web is, in general, a deductive process. To this end, OWL, a family of web ontology languages based on description logic, has be...
164
click to vote
ICDT
2003
ACM
15 years 11 months ago
2003
ACM
We study extensions of first-order logic over the reals with different types of transitive-closure operators as query languages for constraint databases that can be described by...