443 search results - page 20 / 89 » Relational Approach to Logical Query Optimization of XPath |
RR
2007
Springer
14 years 1 months ago
2007
Springer
For the foreseeable future, most data will continue to be stored in relational databases. To work with these data in ontology-based applications, tools and techniques that bridge t...
ODBIS
2007
Springer
14 years 1 months ago
2007
Springer
Supporting SPARQL queries over relational databases becomes an active topic recently. However, it has not received enough consideration when SPARQL queries include restrictions on...
ADC
2006
Springer
14 years 1 months ago
2006
Springer
Query answering over OWLs and RDFs on the Semantic Web is, in general, a deductive process. To this end, OWL, a family of web ontology languages based on description logic, has be...
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...
ICDE
2005
IEEE
14 years 1 months ago
2005
IEEE
Sybase's flagship database product, Adaptive Server Enterprise provides Native XML processing (NXS) support. In this paper we present our experience related to query processi...