3456 search results - page 234 / 692 » Semantics in Spatial Databases |
230
Voted
GIS
2005
ACM
16 years 3 months ago
2005
ACM
The R*-tree, as a state-of-the-art spatial index, has already found its way into commercial systems like Oracle. In this paper, we aim at improving query performance of the R*tree...
112
Voted
GIS
1999
ACM
15 years 7 months ago
1999
ACM
Nowadays, many applications need data modeling facilities for the description of complex objects with spatial and/or temporal facilities. Responses to such requirements may be fou...
138
Voted
ADC
2008
Springer
15 years 9 months ago
2008
Springer
As the eXtensible Markup Language (XML) is about to emerge as a new standard for databases, the problem of providing solid logical grounds for XML query languages arises. For the ...
96
Voted
ICDCS
2005
IEEE
15 years 8 months ago
2005
IEEE
We consider the problem of handling similarity queries in peer-to-peer databases. Given a query for a data object, we propose an indexing and searching mechanism which returns the...
90
Voted
VLDB
2005
ACM
15 years 8 months ago
2005
ACM
In this paper, we propose a method for maintaining a semantic cache of materialized XPath views. The cached views include queries that have been previously asked, and additional s...