276 search results - page 2 / 56 » Answering XML Queries over Heterogeneous Data Sources |
SEMWEB
2010
Springer
13 years 2 months ago
2010
Springer
Abstract. In order to effectively and quickly answer queries in environments with distributed RDF/OWL, we present a query optimization algorithm to identify the potentially relevan...
ICEIS
2009
IEEE
13 years 11 months ago
2009
IEEE
Abstract. In the Web environment, rich, diverse sources of heterogeneous and distributed data are ubiquitous. In fact, even the information characterizing a single entity - like, f...
DEXA
2009
Springer
13 years 11 months ago
2009
Springer
SPARQL is today the standard access language for Semantic Web data. In the recent years XML databases have also acquired industrial importance due to the widespread applicability o...
ICDT
2012
ACM
11 years 7 months ago
2012
ACM
Previous studies of incomplete XML documents have identified three main sources of incompleteness – in structural information, data values, and labeling – and addressed data ...
ER
1999
Springer
13 years 9 months ago
1999
Springer
Several federated database systems have been built in the past using the relational or the object model as federating model. This paper gives an overview of the XMLMedia system, a ...