481 search results - page 28 / 97 » Approximate XML Query Answers |
VLDB
2005
ACM
14 years 1 months ago
2005
ACM
In this paper, we propose a method for maintaining a semantic cache of materialized XPath views. The cached views include queries that have been previously asked, and additional s...
CIKM
2008
Springer
13 years 9 months ago
2008
Springer
Structured P2P overlays supporting standard database functionalities are a popular choice for building large-scale distributed data management systems. In such systems, estimating...
SIGIR
2004
ACM
14 years 1 months ago
2004
ACM
Document-centric XML collections contain text-rich documents, marked up with XML tags. The tags add lightweight semantics to the text. Querying such collections calls for a hybrid...
GLOBE
2009
Springer
14 years 14 days ago
2009
Springer
Abstract. We show how to specify and use the metadata for a virtual and relational data integration system under the local-as-view (LAV) approach. We use XML and RuleML for represe...
AIMSA
2010
Springer
13 years 9 months ago
2010
Springer
Abstract. Ontology based data access (OBDA) is concerned with providing access to typically very large data sources through a mediating conceptual layer that allows one to improve ...