Results 131 to 140 of about 8,825 (227)
Proceedings of the International Conference on Applied Innovations in ITIndustrial IoT platforms face semantic interoperability challenges when integrating heterogeneous manufacturing equipment. While Asset Administration Shell (AAS), standardized by IEC 63278-1:2023, provides vendor-neutral digital representations, existing
Mohamad Wael Kheshfeh +4 more
doaj +1 more source
DataThis paper presents how an ontology-based Knowledge Graph (KG) for basketball box scores can be exploited to support several real use cases, and also presents competency questions, including sports analytics, complex question answering and data browsing ...
Michalis Mountantonakis +3 more
doaj +1 more source
, 2020 This paper presents a thorough study of negation in SPARQL. The types of negation supported in SPARQL are identified and their main features discussed. Then, we study the expressive power of the corresponding negation operators.
Renzo Angles, Claudio Gutierrez
core
CoRR, 2017 The ability of the RDF data model to link data from heterogeneous domains has led to an explosive growth of RDF data. So, evaluating SPARQL queries over large RDF data has been crucial for the semantic web community. However, due to the graph nature of RDF data, evaluating SPARQL queries in relational databases and common data-parallel systems needs a ...
openaire +2 more sources
Grundlagen der SPARQL Anfrageoptimierung [PDF]
, 2009 We study fundamental aspects related to the efficient evaluation of SPARQL, a prominent query language for the RDF data format that has been developed for the encoding of machine-readable information in the Semantic Web. Our key contributions include (i)
Schmidt, Michael
core
Processing SPARQL queries with regular expressions in RDF databases
BMC Bioinformatics, 2011 Background As the Resource Description Framework (RDF) data model is widely used for modeling and sharing a lot of online bioinformatics resources such as Uniprot (dev.isb-sib.ch/projects/uniprot-rdf) or Bio2RDF (bio2rdf.org), SPARQL - a W3C ...
Cho Hune +6 more
doaj +1 more source
Differential privacy and SPARQL
Semantic WebDifferential privacy is a framework that provides formal tools to develop algorithms to access databases and answer statistical queries with quantifiable accuracy and privacy guarantees. The notions of differential privacy are defined independently of the data model and the query language at steak.
Dumontier, Michel +5 more
openaire +1 more source
Swip : une interface Langue Naturelle à SPARQL programmée en SPARQL [PDF]
, 2014 Session 4 : Web sémantiqueNational audienceL'approche Swip a pour objectif de traduire en SPARQL des requêtes exprimées en langue naturelle en exploitant des patrons de requêtes préalablement définis.
Haemmerlé, Ollivier +2 more
core
, 2015 SPARQL has become the most popular language for querying RDF datasets, the standard data model for representing information in the Web. This query language has received a good deal of attention in the last few years: two versions of W3C standards have been issued, several SPARQL query engines have been deployed, and important theoretical foundations ...
Egor V. Kostylev +2 more
openaire +3 more sources
A Typed Model for Linked Data [PDF]
The term Linked Data is used to describe ubiquitous and emerging semi-structured data formats on the Web. URIs in Linked Data allow diverse data sources to link to each other, forming a Web of Data.
Horne, Ross, Sassone, Vladimiro
core