- Abstract:
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We tackle the problem of defining a well-founded semantics (WFS) for Datalog rules with existentially quantified variables in their heads and negations in their bodies. In particular, we provide a WFS for the recent Datalog family of ontology languages, which covers several important description logics (DLs). To do so, we generalize Datalog by non-stratified nonmonotonic negation in rule bodies, and we define a WFS for this generalization via guarded fixed point logic. We refer to this approach...
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- Publisher:
- CEUR−WS.org
- Volume:
- 846
- Publication date:
- 2012-01-01
- URN:
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uuid:cc4b930b-7cfe-4784-954f-1227ada13e15
- Local pid:
- cs:6324
- Copyright date:
- 2012
Conference item
Equality−Friendly Well−Founded Semantics and Applications to Description Logics
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