443 search results - page 80 / 89 » Relational Approach to Logical Query Optimization of XPath |
PODS
1999
ACM
13 years 11 months ago
1999
ACM
Query optimizers rely on fast, high-quality estimates of result sizes in order to select between various join plans. Selfjoin sizes of relations provide bounds on the join size of...
SEMWEB
2005
Springer
14 years 29 days ago
2005
Springer
Information retrieval systems have to deal with uncertain knowledge and query results should reflect this uncertainty in some manner. However, Semantic Web ontologies are based on...
PVLDB
2008
13 years 7 months ago
2008
The popularity of collaborative tagging sites presents a unique opportunity to explore keyword search in a context where query results are determined by the opinion of a network o...
VLDB
2004
ACM
14 years 24 days ago
2004
ACM
SQL in the IBM® DB2® Universal Database™ for Linux®, UNIX®, and Windows® (DB2 UDB) database management product has been extended to support nested INSERT, UPDATE, and DELET...
FGCS
2008
13 years 7 months ago
2008
This paper proposes a bio-inspired approach tailored to the construction of a Grid information system in which content, specifically metadata descriptors that specify the characte...