Finding intensional encapsulations of database subsets is the inverse of query evaluation. Whereas query evaluation transforms an intensional expression (the query) to its extensi...
Abstract. Many heterogeneous database system products and prototypes exist today; they will soon be deployed in a wide variety of environments. Most existing systems suffer from an...
Conjunctive query answering is a key reasoning service for many ontology-based applications. In order to improve scalability, many Semantic Web query answering systems give up com...
Giorgos Stoilos, Bernardo Cuenca Grau, Ian Horrock...
Dataspace applications necessitate the creation of associations among data items over time. For example, once information about people is extracted from sources on the Web, associa...
Marcos Antonio Vaz Salles, Jens Dittrich, Lukas Bl...