A general datalog-based framework for tractable query answering over ontologies.
In this paper, we introduce a family of expressive extensions of Datalog, called Datalog±, as a new paradigm for query answering over ontologies. The Datalog± family admits existentially quantified variables in rule heads, and has suitable restrictions to ensure highly efficient ontology querying. W...
| Príomhchruthaitheoirí: | , , |
|---|---|
| Rannpháirtithe: | |
| Formáid: | Journal article |
| Teanga: | English |
| Foilsithe / Cruthaithe: |
ACM
2009
|