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04/09/2021
INODE: Building an End-to-End Data Exploration System in Practice [Extended Vision]
A full-fledged data exploration system must combine different access mod...
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11/06/2019
Certain Answers to a SPARQL Query over a Knowledge Base (extended version)
Ontology-Mediated Query Answering (OMQA) is a well-established framework...
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06/01/2019
Enriching Ontology-based Data Access with Provenance (Extended Version)
Ontology-based data access (OBDA) is a popular paradigm for querying het...
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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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04/12/2018
BigSR: an empirical study of real-time expressive RDF stream reasoning on modern Big Data platforms
The trade-off between language expressiveness and system scalability (E&...
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07/21/2017
Cost-Driven Ontology-Based Data Access (Extended Version)
In ontology-based data access (OBDA), users are provided with a conceptu...
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11/26/2015
Beyond OWL 2 QL in OBDA: Rewritings and Approximations (Extended Version)
Ontology-based data access (OBDA) is a novel paradigm facilitating acces...
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01/10/2013