Friday, September 19, 2014 10:45 AM EDT
Speakers: |
- David Cheriton, Stanford University, 10:45am
"HICAMP Bitmap: Space-efficient updatable bitmap index for in-memory databases"
- Ihab Ilyas, University of Waterloo, 3:00pm
"Data Cleaning from Theory to Practice"
- M. Tamer Özsu, University of Waterloo, 3:45pm "Web Data Management in the RDF Age"
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Monday, September 15, 2014 2:30 PM EDT
Abstract: |
Answering object queries (i.e. instance retrieval) is a central task in ontology based data access (OBDA). Performing this task involves reasoning with respect to a knowledge base K (i.e. ontology) over some description logic (DL) dialect L. As the expressive power of L grows, so does the complexity of reasoning with respect to K. Therefore, eliminating the need to reason with respect to a knowledge base K is desirable. |