One of the key problems when extending relational database query languages to include deductive capabilities, is to provide them with efficient methods for answering recursive que...
This paper presents an approach to answering queries over an ontology modelled using a description logic. The ontology acts as a global schema, providing a declarative description...
Martin Peim, Enrico Franconi, Norman W. Paton, Car...
We introduce a declarative approach for a coherent composition of autonomous databases. For this we use ID-logic, a formalism that extends classical logic with inductive definitio...
Bert Van Nuffelen, Ofer Arieli, Alvaro Corté...
In order to become an effective complement to traditional Web-scale text-based image retrieval solutions, content-based image retrieval must address scalability and efficiency iss...
Relational, XML and HTML data can be represented as graphs with entities as nodes and relationships as edges. Text is associated with nodes and possibly edges. Keyword search on s...