Add to ORKGIn this paper we extend virtual OBDA to more expressive ontology languages than that of DL-LiteR, which is the logic underpinning the W3C ontology language OWL 2. We achieve this by relying on two well-known mechanisms, namely conservative rewriting and approximation, and compiling some of the domain semantics into OBDA mappings
Ontologies, as a conceptualization of a domain of interest, can be used for different objectives, su...
Although current languages used in ontology-based data access (OBDA) systems allow for mapping sourc...
The Ontology-Based Data Access (OBDA) paradigm aims at providing to the users a unified and shared c...
In this paper we extend virtual OBDA to more expressive ontology languages than that of DL-LiteR, wh...
Ontology-based data access (OBDA) is a novel paradigm facilitating access to relational data, realiz...
Ontology based data access (OBDA) is concerned with providing access to typically very large data so...
Ontology-based data access (OBDA) systems use ontologies to provide views over relational databases....
Ontologies provide a conceptualization of a domain of interest which can be used for different objec...
In ontology-based data access (OBDA), an ontology is connected to autonomous, and generally pre-exis...
A common way to answer queries in Ontology Base Data Access (OBDA), is to divide the process into tw...
Abstract. Given a source relational database, a target OWL ontology and a map-ping from the source d...
In ontology-based data access (OBDA), databases are connected to an ontology via mappings from queri...
While OBDA has been the focus of many different studies in recent years, these studies typically hav...
We investigate query reformulation rules in OBDA to obtain either more or less answers. We extend DL...
Ontology-based Data Access (OBDA) is gaining importance both scientifically and practically. However...
Ontologies, as a conceptualization of a domain of interest, can be used for different objectives, su...
Although current languages used in ontology-based data access (OBDA) systems allow for mapping sourc...
The Ontology-Based Data Access (OBDA) paradigm aims at providing to the users a unified and shared c...
In this paper we extend virtual OBDA to more expressive ontology languages than that of DL-LiteR, wh...
Ontology-based data access (OBDA) is a novel paradigm facilitating access to relational data, realiz...
Ontology based data access (OBDA) is concerned with providing access to typically very large data so...
Ontology-based data access (OBDA) systems use ontologies to provide views over relational databases....
Ontologies provide a conceptualization of a domain of interest which can be used for different objec...
In ontology-based data access (OBDA), an ontology is connected to autonomous, and generally pre-exis...
A common way to answer queries in Ontology Base Data Access (OBDA), is to divide the process into tw...
Abstract. Given a source relational database, a target OWL ontology and a map-ping from the source d...
In ontology-based data access (OBDA), databases are connected to an ontology via mappings from queri...
While OBDA has been the focus of many different studies in recent years, these studies typically hav...
We investigate query reformulation rules in OBDA to obtain either more or less answers. We extend DL...
Ontology-based Data Access (OBDA) is gaining importance both scientifically and practically. However...
Ontologies, as a conceptualization of a domain of interest, can be used for different objectives, su...
Although current languages used in ontology-based data access (OBDA) systems allow for mapping sourc...
The Ontology-Based Data Access (OBDA) paradigm aims at providing to the users a unified and shared c...