Querying Probabilistic Ontologies

Talk by Jörg Schönfisch

Location: APB 3105
Start: 26. January 2015 at 2:50 pm
End: 26. January 2015 at 3:50 pm
Research group: Automata Theory
Research group: Knowledge-Based Systems
Event series: KBS Seminar
iCal

In recent years a lot of efforts was put into the field of Semantic Web research to specify knowledge as precisely as possible. However, optimizing for precision alone is not sufficient. The handling of uncertain or incomplete information is getting more and more important and it promises to significantly improve the quality of query answering in Semantic Web applications. In this presentation in present my plan to develop a framework that extends the rich semantics offered by ontologies with probabilistic information, stores this in a probabilistic database and provides query answering with the help of query rewriting. I describe how these three aspects can be combined. Especially, I am focusing on how uncertainty is incorporated into the ABox and how it is handled by the database and the rewriter during query answering.