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Querying OWL 2 QL and non-monotonic rules

Published on 2011-11-252543 Views

Answering (conjunctive) queries is an important reasoning task in Description Logics (DL), hence also in highly expressive ontology languages, such as OWL. Extending such ontology languages with rul

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Querying OWL 2 QL and00:00
Motivating Example00:09
Goals02:13
Ingredients: 1. OWL 2 QL03:24
Ingredients: 2. Hybrid MKNF KBs05:07
Ingredients: 3. SLG(O)06:43
Contribution10:47
Intuitive Idea - Example11:42
Query hasKnownTutor(x)13:13
Compute negative closure16:28
Translate negative closure17:45
Derive Meaningful Answers18:36
Properties20:15
Conclusions22:12