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11/12/2021
First-Order Rewritability and Complexity of Two-Dimensional Temporal Ontology-Mediated Queries
Aiming at ontology-based data access to temporal data, we design two-dim...
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04/15/2020
First-Order Rewritability of Ontology-Mediated Queries in Linear Temporal Logic
We investigate ontology-based data access to temporal data. We consider ...
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06/15/2018
Efficient Handling of SPARQL OPTIONAL for OBDA (Extended Version)
OPTIONAL is a key feature in SPARQL for dealing with missing information...
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01/15/2014
The DL-Lite Family and Relations
The recently introduced series of description logics under the common mo...
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04/18/2013
Temporal Description Logic for Ontology-Based Data Access (Extended Version)
Our aim is to investigate ontology-based data access over temporal data ...
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09/25/2012