1500 search results - page 56 / 300 » Query Optimization in Database Grid |
ILP
2003
Springer
14 years 2 months ago
2003
Springer
Query optimization is used frequently in relational database management systems. Most existing techniques are based on reordering the relational operators, where the most selective...
ADBIS
2007
Springer
14 years 26 days ago
2007
Springer
Query mapping to aggregation lattices is used in order to exploit sub-cube dependencies in multidimensional databases. It is employed in mobile OLAP dissemination systems, in order...
VLDB
2004
ACM
14 years 2 months ago
2004
ACM
Progressive Optimization (POP) is a technique to make query plans robust, and minimize need for DBA intervention, by repeatedly re-optimizing a query during runtime if the cardina...
DEXA
2008
Springer
13 years 10 months ago
2008
Springer
The query performance for tracing tags depends upon the distribution of tag trajectories in the data space. We examine a more efficient representation of tag trajectories by means ...
SSDBM
2002
IEEE
14 years 1 months ago
2002
IEEE
This paper presents an approach to answering queries over an ontology modelled using a description logic. The ontology acts as a global schema, providing a declarative description...