2674 search results - page 305 / 535 » Data Models and Query Languages for Spatial Databases |
194
click to vote
AAAI
2006
15 years 8 months ago
2006
Description Logics (DLs) are the formal foundations of the standard web ontology languages OWL-DL and OWL-Lite. In the Semantic Web and other domains, ontologies are increasingly ...
190
click to vote
PODS
2008
ACM
16 years 6 months ago
2008
ACM
We revisit the classical chase procedure, studying its properties as well as its applicability to standard database problems. We settle (in the negative) the open problem of decid...
307
click to vote
GIS
2006
ACM
16 years 7 months ago
2006
ACM
Given a query point and a collection of spatial features, a multi-type nearest neighbor (MTNN) query finds the shortest tour for the query point such that only one instance of eac...
200
click to vote
ISI
2002
Springer
15 years 6 months ago
2002
Springer
Dealing with large volumes of data, OLAP data cubes aggregated values are often spoiled by errors due to missing values in detailed data. This paper suggests to adjust aggregate an...
194
click to vote
ICWS
2009
IEEE
16 years 3 months ago
2009
IEEE
—The vision of the Semantic Web has brought about new challenges at the intersection of web research and data management. One fundamental research issue at this intersection is t...