Results 21 to 30 of about 12,237 (214)
SPARQLES: Monitoring public SPARQL endpoints
Semantic Web, 2017 We describe SPARQLES: an online system that monitors the health of public SPARQL endpoints on the Web by probing them with custom-designed queries at regular intervals. We present the architecture of SPARQLES and the variety of analytics that it runs over public SPARQL endpoints, categorised by availability, discoverability, performance and ...
Pierre-Yves Vandenbussche +4 more
openaire +3 more sources
SPARQL-Anything/sparql.anything: v0.9-DEV-6
, 2023 <h2>What's Changed</h2> <ul> <li>Added missing code-block language in Configuration.md by @kvistgaard in https://github.com/SPARQL-Anything/sparql.anything/pull/425</li> <li>Added SVG to XML.md by @kvistgaard in https:/
Mathias Vanden Auweele +4 more
core +2 more sources
Operational semantics for SPARQL Update [PDF]
, 2011 Concurrent fine grained updates are essential for using RDF stores in dynamic modern Web applications, where users increasingly contribute content as often as they read content. SPARQL Update is a language proposed by the W3C for fine grained updates for
HORNE, Ross James +6 more
core +1 more source
Updating RDFS ABoxes and TBoxes in SPARQL [PDF]
, 2014 Updates in RDF stores have recently been standardised in the SPARQL 1.1 Update specification. However, computing answers entailed by ontologies in triple stores is usually treated orthogonal to updates. Even the W3C's recent SPARQL 1.1 Update language
Axel Polleres +5 more
core +1 more source
On the Marriage of SPARQL and Keywords [PDF]
, 2015 Although SPARQL has been the predominant query language over RDF graphs, some query intentions cannot be well captured by only using SPARQL syntax. On the other hand, the keyword search enjoys widespread usage because of its intuitive way of specifying information needs but suffers from the problem of low precision.
Peng Peng 0001 +2 more
openaire +4 more sources
The dblp Knowledge Graph and SPARQL Endpoint [PDF]
Transactions on Graph Data and KnowledgeFor more than 30 years, the dblp computer science bibliography has provided quality-checked and curated bibliographic metadata on major computer science journals, proceedings, and monographs.
Ackermann, Marcel R. +5 more
doaj +1 more source
Linked Data for the Historic Environment
Internet Archaeology, 2022 This article discusses the outcomes of research undertaken by the Hypermedia Research Group at the University of South Wales in collaboration with the OASIS team at the Archaeology Data Service in the Linked Data for the Historic Environment (LD4HE ...
Ceri Binding +4 more
doaj +1 more source
Semantic Web, 2015 The need for recursive queries in the Semantic Web setting is becoming more and more apparent with the emergence of datasets where different pieces of information are connected by complicated patterns. This was acknowledged by the W3C committee by the inclusion of property paths in the SPARQL standard.
Juan L. Reutter +2 more
openaire +4 more sources
Proceedings of the International Florida Artificial Intelligence Research Society Conference, 2021 Semantic alignment of application software components’ ontologies represents a great interest in vehicle application domains that manipulate heterogeneous overlapping knowledge application frameworks.
Sangita De +3 more
doaj +1 more source
CoRR, 2016 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. At this point, we identify a core SPARQL algebra which could be used instead of the W3C SPARQL algebra.
Renzo Angles, Claudio Gutierrez 0001
openaire +3 more sources