2043 search results - page 116 / 409 » The Limits of Querying Ontologies |
ICITA
2005
IEEE
14 years 2 months ago
2005
IEEE
Within the emergent Semantic Web framework, the use of traditional web search engines based on keywords provided by the users is not adequate anymore. Instead, new methods based o...
PSSS
2003
13 years 10 months ago
2003
Abstract: We present DLDB, a knowledge base system that extends a relational database management system with additional capabilities for DAML+OIL inference. We discuss a number of ...
SEMWEB
2010
Springer
13 years 6 months ago
2010
Springer
RDF(S) and OWL 2 currently support only static ontologies. In practice, however, the truth of statements often changes with time, and Semantic Web applications often need to repres...
CIKM
2000
Springer
14 years 1 months ago
2000
Springer
The complexity of deploying high-performance spatial structures in transactional DBMS environments has motivated researchers to experiment with the idea of reusing the effort inve...
ICDE
2001
IEEE
14 years 10 months ago
2001
IEEE
We describe efficient algorithms for accurately estimating the number of matches of a small node-labeled tree, i.e., a twig, in a large node-labeled tree, using a summary data str...