120 search results - page 17 / 24 » SemanticTwig: A Semantic Approach to Optimize XML Query Proc... |
WWW
2011
ACM
13 years 2 months ago
2011
ACM
The problem of answering SPARQL queries over virtual SPARQL views is commonly encountered in a number of settings, including while enforcing security policies to access RDF data, ...
ICDT
2010
ACM
14 years 5 months ago
2010
ACM
We study fundamental aspects related to the efficient processing of the SPARQL query language for RDF, proposed by the W3C to encode machine-readable information in the Semantic W...
ICDE
2005
IEEE
14 years 1 months ago
2005
IEEE
¡ Several systems have recently been proposed for the evaluation of XPath expressions. However, none of these systems have demonstrated both scalability with large document sizes ...
SSDBM
2002
IEEE
14 years 21 days 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...
ICWS
2007
IEEE
13 years 9 months ago
2007
IEEE
There is a critical need to design and develop tools tract away the fundamental complexity of XML based Web services specifications and toolkits, and provide an elegant, intuitive...