Add to ORKGAbstract. We extend the Semantic Web query language SPARQL by defining the semantics of SPARQL queries under the entailment regimes of RDF, RDFS, and OWL. The proposed extensions are part of the SPARQL 1.1 Entailment Regimes working draft which is currently being developed as part of the W3C standardization process of SPARQL 1.1. We review the conditions that SPARQL imposes on such extensions, discuss the practical difficulties of this task, and ex-plicate the design choices underlying our proposals. In addition, we include an overview of current implementations and their underlying techniques.
We consider the recommendations of the World Wide Web Consortium (W3C) about the Resource Descriptio...
RDF Schema (RDFS) as a lightweight ontology language is gaining popularity and, consequently, too...
We study the semantics of SPARQL queries with optional matching features under entailment regimes. W...
We extend the Semantic Web query language SPARQL by defining the semantics of SPARQL queries under t...
Abstract. As the data and ontology layers of the Semantic Web stack have achieved a certain level of...
The Semantic Web is the initiative of the W3C to make infor-mation on the Web readable not only by h...
Abstract. The goal of this paper is to give an overview of the basics of the theory of RDF databases...
We study the semantics of SPARQL queries with optional matching features under entailment regimes. W...
Abstract. This paper presents a formal semantics of SPARQL based on [1]. Extensions to [1] are discu...
SPARQL has become the most popular language for querying RDF datasets, the standard data model for r...
SPARQL queries can be represented in RDF in order to work with them as first-class citizen in Semant...
Abstract. Lightweight ontologies in the form of RDF vocabularies such as SIOC, FOAF, vCard, etc. are...
Abstract. RDF Schema (RDFS) extends RDF with a schema vocabu-lary with a predefined semantics. Evalu...
Abstract. RDF Schema (RDFS) as a lightweight ontology language is gaining popularity and, consequent...
The standard approach to annotate statements in RDF with metadatahas a number of shortcomings includ...
We consider the recommendations of the World Wide Web Consortium (W3C) about the Resource Descriptio...
RDF Schema (RDFS) as a lightweight ontology language is gaining popularity and, consequently, too...
We study the semantics of SPARQL queries with optional matching features under entailment regimes. W...
We extend the Semantic Web query language SPARQL by defining the semantics of SPARQL queries under t...
Abstract. As the data and ontology layers of the Semantic Web stack have achieved a certain level of...
The Semantic Web is the initiative of the W3C to make infor-mation on the Web readable not only by h...
Abstract. The goal of this paper is to give an overview of the basics of the theory of RDF databases...
We study the semantics of SPARQL queries with optional matching features under entailment regimes. W...
Abstract. This paper presents a formal semantics of SPARQL based on [1]. Extensions to [1] are discu...
SPARQL has become the most popular language for querying RDF datasets, the standard data model for r...
SPARQL queries can be represented in RDF in order to work with them as first-class citizen in Semant...
Abstract. Lightweight ontologies in the form of RDF vocabularies such as SIOC, FOAF, vCard, etc. are...
Abstract. RDF Schema (RDFS) extends RDF with a schema vocabu-lary with a predefined semantics. Evalu...
Abstract. RDF Schema (RDFS) as a lightweight ontology language is gaining popularity and, consequent...
The standard approach to annotate statements in RDF with metadatahas a number of shortcomings includ...
We consider the recommendations of the World Wide Web Consortium (W3C) about the Resource Descriptio...
RDF Schema (RDFS) as a lightweight ontology language is gaining popularity and, consequently, too...
We study the semantics of SPARQL queries with optional matching features under entailment regimes. W...