777 search results - page 22 / 156 » Optimization of Relational Preference Queries |
ILP
2003
Springer
14 years 26 days 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...
SIGMOD
2008
ACM
14 years 7 months ago
2008
ACM
Text documents often embed data that is structured in nature. This structured data is increasingly exposed using information extraction systems, which generate structured relation...
AMW
2009
13 years 8 months ago
2009
Conventional operators for data retrieval are either based on exact matching or on total order relationship among elements. Neither of them is appropriate to manage complex data, s...
GEOINFO
2003
13 years 9 months ago
2003
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 existing...
ADC
2005
Springer
14 years 1 months ago
2005
Springer
Although data stored in XML is of increasing importance, most existing data repositories are still managed by relational database systems. In light of this, recent XML database re...