Results 111 to 120 of about 24,784 (209)

Querying XML Data with SPARQL

, 2009
SPARQL is today the standard access language for Semantic Web data. In the recent years XML databases have also acquired industrial importance due to the widespread applicability of XML in the Web. In this paper we present a framework that bridges the heterogeneity gap and creates an interoperable environment where SPARQL queries are used to access XML
Χριστοδουλακης Σταυρος(http://users.isc.tuc.gr/~schristodoulakis), Christodoulakis Stavros(http://users.isc.tuc.gr/~schristodoulakis), Nikos Bikakis(), Nektarios Gioldasis(), Chrisa Tsinaraki()   +4 more
openaire   +2 more sources

REST and Linked Data: a match made for domain driven development?

, 2011
At a first glance there might appear to be an obvious alignment and overlap between the approaches prescribed by REST and Linked Data. On more detailed inspection divergences in scope and applicability present themselves, and for some aspects ...
De Roure, David C., Martinez, Kirk, Page, Kevin R.   +2 more
core  

Sparqling: Painlessly drawing SPARQL queries over Graphol ontologies

, 2018
There is a reason why the proverb says “A picture is worth a thousand words”: diagrams or sketches of concepts and of the relationships that exist between them help understand their meaning. In the Semantic Web, the concepts and relationships of the world are modeled through ontologies, but current standards for ontology languages such as OWL 2 don’t ...
Di Bartolomeo, Sara, Pepe, Gianluca, Santarelli, Valerio, Savo, Domenico Fabio   +3 more
openaire   +1 more source

Machine-interpretable dataset and service descriptions for heterogeneous data access and retrieval [PDF]

, 2015
Alexander K., Christensen E., Das S., de Bruijn J., de Bruijn J., Dimou A., Lanthaler M., Maali F., Martin D., Stadler C., Tennison J., Vitvar T.   +11 more
core   +1 more source

RDF Fusion: An Extensible SPARQL Engine for Hybrid Data Models

IEEE Access
The Internet of Things (IoT) generates vast streams of sensor data that often require enrichment with background knowledge about the system and domain. Although such data can be represented as graphs, purely graph-based models struggle with the temporal ...
Tobias Schwarzinger, Max Thoma, Thomas Preindl, Martin Kjaer, Valentin Philipp Just, Gernot Steindl   +5 more
doaj   +1 more source

SPARQL over GraphX

, 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

dlvhex-sparql: A SPARQL-compliant query engine based on dlvhex

, 2007
This paper describes the dlvhex SPARQL plugin, a query processor for the upcoming Semantic Web query language standard by W3C. We report on the implementation of this languages using dlvhex, a flexible plugin system on top of the DLV solver. This work advances our earlier translation based on the semantics by Perez et al.
openaire   +2 more sources

SPARQL Extensions for processing alignments

IEEE Intelligent Systems, 2008
No abstract available.
Euzenat, Jérôme, Scharffe, François, Polleres, Axel   +2 more
openaire   +2 more sources

An ontology-based description of nano computed tomography measurements in electronic laboratory notebooks. [PDF]

Sci Data
Kirchner F, Wieland DCF, Irvine S, Schimek S, Reimers J, Aversa R, Boubnov A, Lucas C, Flenner S, Greving I, Marinho AL, Wong TM, Willumeit-Römer R, Eschke C, Zeller-Plumhoff B.   +14 more
europepmc   +1 more source

MetaNetX: a bridge between metabolic resources for enhanced curation and multi-omics data harmonization. [PDF]

Nucleic Acids Res
Moretti S, Niknejad A, Pagni M, Mehl F.
europepmc   +1 more source