Abstract. In this paper we present Ontop, an open-source Ontology Based Data Access (OBDA) system that allows for querying relational data sources through a conceptual representation of the domain of interest, provided in terms of an ontology, to which the data sources are mapped. Key features of Ontop are its solid theoretical foundations, a virtual approach to OBDA that avoids materializing triples and that is implemented through query rewriting techniques, extensive optimizations exploiting all elements of the OBDA architecture, its compliance to all relevant W3C recommendations (including SPARQL queries, R2RML mappings, and OWL 2 QL and RDFS ontologies), and its support for all major relational databases
Abstract. In Ontology-Based Data Access (OBDA), queries are posed over a high-level conceptual view,...
We present the framework of ontology-based data access, a semantic paradigm for providing a convenie...
We present the framework of ontology-based data access, a semantic paradigm for providing a convenie...
Abstract. We present Ontop, an open-source Ontology-Based Data Access (OBDA) system that allows for ...
Abstract. Ontology-based data access (OBDA) has become a popular paradigm for accessing data stored ...
Ontology Based Data Access (OBDA) [4] is a paradigm of accessing data trough a conceptual layer. Usu...
Abstract. We present the architecture and technologies underpinning the OBDA system Ontop and taking...
Abstract. Ontop is an Ontology Based Data Access system allowing users to access a relational databa...
The database (DB) landscape has been significantly diversified during the last decade, resulting in ...
The Ontology-Based Data Access (OBDA) paradigm aims at providing to the users a unified and shared c...
Abstract. In ontology-based data access (OBDA), the aim is to provide a high-level conceptual view o...
Abstract. We present an extension of the ontology-based data access platform Ontop that supports ans...
Ontology-based data access (OBDA) is a novel paradigm facilitating access to relational data, realiz...
Abstract. We present an extension of the ontology-based data access platform Ontop that supports ans...
Abstract. In OBDA an ontology defines a high level global vocabulary for user queries, and such voca...
Abstract. In Ontology-Based Data Access (OBDA), queries are posed over a high-level conceptual view,...
We present the framework of ontology-based data access, a semantic paradigm for providing a convenie...
We present the framework of ontology-based data access, a semantic paradigm for providing a convenie...
Abstract. We present Ontop, an open-source Ontology-Based Data Access (OBDA) system that allows for ...
Abstract. Ontology-based data access (OBDA) has become a popular paradigm for accessing data stored ...
Ontology Based Data Access (OBDA) [4] is a paradigm of accessing data trough a conceptual layer. Usu...
Abstract. We present the architecture and technologies underpinning the OBDA system Ontop and taking...
Abstract. Ontop is an Ontology Based Data Access system allowing users to access a relational databa...
The database (DB) landscape has been significantly diversified during the last decade, resulting in ...
The Ontology-Based Data Access (OBDA) paradigm aims at providing to the users a unified and shared c...
Abstract. In ontology-based data access (OBDA), the aim is to provide a high-level conceptual view o...
Abstract. We present an extension of the ontology-based data access platform Ontop that supports ans...
Ontology-based data access (OBDA) is a novel paradigm facilitating access to relational data, realiz...
Abstract. We present an extension of the ontology-based data access platform Ontop that supports ans...
Abstract. In OBDA an ontology defines a high level global vocabulary for user queries, and such voca...
Abstract. In Ontology-Based Data Access (OBDA), queries are posed over a high-level conceptual view,...
We present the framework of ontology-based data access, a semantic paradigm for providing a convenie...
We present the framework of ontology-based data access, a semantic paradigm for providing a convenie...