6004 search results - page 284 / 1201 » Parallelizing query optimization |
129
Voted
DLOG
2011
14 years 4 months ago
2011
We present an optimized query rewriting algorithm for OWL 2 QL that computes the rewriting set of a user query by avoiding unnecessary inferences and extended clause subsumption ch...
126
click to vote
SIGMOD
2011
ACM
14 years 3 months ago
2011
ACM
In spite of the omnipresence of parallel (multi-core) systems, the predominant strategy to evaluate window-based stream joins is still strictly sequential, mostly just straightfor...
97
Voted
ICDE
2010
IEEE
15 years 10 months ago
2010
IEEE
— Multi-criteria decision support (MCDS) is crucial in many business and web applications such as web searches, B2B portals and on-line commerce. Such MCDS applications need to r...
115
Voted
BDA
2007
15 years 2 months ago
2007
Pervasive information systems give an overview of what digital environments should look like in the future. From a data-centric point of view, traditional databases have to be use...
105
click to vote
IPM
2007
15 years 17 days ago
2007
The performance of parallel query processing in a cluster of index servers is crucial for modern web search systems. In such a scenario, the response time basically depends on the...