Sciweavers

ODBIS
2007
Springer
157views Database» more  ODBIS 2007»
14 years 5 months ago
An Extension of SPARQL for RDFS
Abstract. RDF Schema (RDFS) extends RDF with a schema vocabulary with a predefined semantics. Evaluating queries which involve this vocabulary is challenging, and there is not yet...
Marcelo Arenas, Claudio Gutierrez, Jorge Pé...
ODBIS
2007
Springer
150views Database» more  ODBIS 2007»
14 years 5 months ago
An Effective SPARQL Support over Relational Databases
Supporting SPARQL queries over relational databases becomes an active topic recently. However, it has not received enough consideration when SPARQL queries include restrictions on...
Jing Lu, Feng Cao, Li Ma, Yong Yu, Yue Pan
ODBIS
2007
Springer
127views Database» more  ODBIS 2007»
14 years 5 months ago
On RDF/S Ontology Evolution
Abstract. The algorithms dealing with the incorporation of new knowledge in an ontology (ontology evolution) often share a rather standard process of dealing with changes. This pro...
George Konstantinidis, Giorgos Flouris, Grigoris A...
ODBIS
2007
Springer
115views Database» more  ODBIS 2007»
14 years 5 months ago
On the Synthetic Generation of Semantic Web Schemas
In order to cope with the expected size of the Semantic Web (SW) in the coming years, we need to benchmark existing SW tools (e.g., query language interpreters) in a credible manne...
Yannis Theoharis, George Georgakopoulos, Vassilis ...
ODBIS
2007
Springer
144views Database» more  ODBIS 2007»
14 years 5 months ago
Maintaining Semantic Mappings between Database Schemas and Ontologies
There is a growing need to define a semantic mapping from a database schema to an ontology. Such a mapping is an integral part of the data integration systems that use an ontology...
Yuan An, Thodoros Topaloglou