3456 search results - page 171 / 692 » Semantics in Spatial Databases |
ICDE
2004
IEEE
14 years 9 months ago
2004
IEEE
We describe and evaluate a query minimization technique that applies to XQueries, which are nested, perform arbitrary joins, and freely mix bag and set semantics. These features c...
IFIP
2004
Springer
14 years 1 months ago
2004
Springer
Data integration is one of the older research fields in the database area and has emerged shortly after database systems were first introduced into the business world. In this pa...
ER
2008
Springer
13 years 10 months ago
2008
Springer
Abstract. The alignment of different ontologies requires the specification, representation and execution of translation rules. The rules need to integrate translations at the lexic...
EDBT
2006
ACM
14 years 8 months ago
2006
ACM
Abstract. Sensor networks monitor physical phenomena over large geographic regions. Scientists can gain valuable insight into these phenomena, if they understand the underlying dat...
DEXA
2007
Springer
14 years 8 days ago
2007
Springer
The two dominant costs in continuous spatial query systems are the wireless communication cost for location update, and the evaluation cost for query processing. Existing works add...