124 search results - page 7 / 25 » Concept-based querying in mediator systems |
ECTEL
2006
Springer
13 years 11 months ago
2006
Springer
We propose a mediator architecture that allows a learning system to retrieve learning objects from heterogeneous repositories. A mediating component accepts queries formulated in a...
CIKM
2007
Springer
13 years 11 months ago
2007
Springer
We consider a distributed information system that allows autonomous consumers to query autonomous providers. We focus on the problem of query allocation from a new point of view, ...
SMC
2010
IEEE
13 years 6 months ago
2010
IEEE
—We outline SoftFacts, an ontology mediated top-k information retrieval system over relational databases. An ontology layer is used to define (in terms of a OWL-QL like Semantic...
WISE
2000
Springer
13 years 12 months ago
2000
Springer
The mediator/wrapper approach is used to integrate data from different databases and other data sources by introducing a middleware virtual database that provides high level abstr...
COOPIS
2002
IEEE
14 years 15 days ago
2002
IEEE
In this paper we propose a mediator architecture for the querying and integration of Web-accessible XML data sources. Our contributions are (i) the definition of a simple but expr...