Existing work on explaining why data, albeit expected, is not part of a query result so far limits to data stored in relational queries and transformed using simple SQL queries. However, using such explanations (commonly referred to as Why Not Provenance) for analyzing complex data transformation requires the support of more complex data models and transformations.

AAP 2012

This one-year project provided travel support for M. Bienvenu to carry out research on ontology-based data access in collaboration with colleagues from the University of Bremen, the University of Rome La Sapienza, and the Technical University of Vienna.

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