2674 search results - page 350 / 535 » Data Models and Query Languages for Spatial Databases |
205
click to vote
VLDB
2005
ACM
16 years 19 hour ago
2005
ACM
Developing cost models for query optimization is significantly harder for XML queries than for traditional relational queries. The reason is that XML query operators are much mor...
196
click to vote
DPD
1998
15 years 6 months ago
1998
Distributed databases operating over wide-area networks such as the Internet, must deal with the unpredictable nature of the performance of communication. The response times of acc...
178
click to vote
ER
2004
Springer
15 years 12 months ago
2004
Springer
Abstract. In Data Warehouse (DW) scenarios, ETL (Extraction, Transformation, Loading) processes are responsible for the extraction of data from heterogeneous operational data sourc...
184
click to vote
ICDE
2006
IEEE
16 years 18 days ago
2006
IEEE
This paper presents a description of seven systems, which use database technology to both represent knowledge persistently and make scalable queries on it, in the Semantic Web con...
188
click to vote
TODS
2002
15 years 6 months ago
2002
Metric access methods (MAMs), such as the M-tree, are powerful index structures for supporting ty queries on metric spaces, which represent a common abstraction for those searchin...