454 search results - page 37 / 91 » SPARQL Query Processing with Conventional Relational Databas... |
151
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SIGMOD
2008
ACM
15 years 11 months ago
2008
ACM
We present HERMES, a prototype system based on a powerful query language for trajectory databases, which enables the support of aggregative Location-Based Services (LBS). The key ...
104
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SSDBM
2003
IEEE
15 years 4 months ago
2003
IEEE
Relational index structures, as for instance the Relational Interval Tree, the Relational R-Tree, or the Linear Quadtree, support efficient processing of queries on top of existin...
167
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ICDE
2008
IEEE
16 years 14 days ago
2008
IEEE
We study the problem of computing query results with confidence values in ULDBs: relational databases with uncertainty and lineage. ULDBs, which subsume probabilistic databases, o...
BTW
2009
Springer
15 years 2 months ago
2009
Springer
Today, more and more enterprises process XML data, many of them already in XML database systems. Once systems start to grow in size, scalability becomes an issue. One of the core o...
SIGMOD
1997
ACM
15 years 3 months ago
1997
ACM
Data warehouses store materialized views over base data from external sources. Clients typically perform complex read-only queries on the views. The views are refreshed periodical...