Results 81 to 90 of about 11,917 (166)

Temporal Data Representation and Querying Based on RDF

IEEE Access, 2019
With the explosive growth of temporal data, how to query and manage temporal data has become an important research issue. Resource description framework (RDF), as the standard data and knowledge description language of the semantic web, has been widely ...
Fu Zhang, Ke Wang, Zhiyin Li, Jingwei Cheng   +3 more
doaj   +1 more source

Dataset of ontology competency questions to SPARQL-OWL queries translations

Data in Brief, 2020
This data article reports on a new set of 234 competency questions for ontology development and their formalisation into a set of 131 SPARQL-OWL queries.
Jedrzej Potoniec, Dawid Wiśniewski, Agnieszka Ławrynowicz, C. Maria Keet   +3 more
doaj   +1 more source

Operational semantics for SPARQL Update

, 2012
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
Gibbins, Nicholas, Horne, Ross, Sassone, Vladimiro   +2 more
core  

SmartDataAnalytics/SparqlIntegrate: sparql-integrate-bundle-1.0.1-SNAPSHOT

, 2019
Sparql-based tool for the integration of heterogeneous ...
BonaBeavis, Claus Stadler
core   +1 more source

LHD: optimising linked data query processing using parallelisation

, 2013
In the past few years as large volume of Linked Data is being publishing, processing distributed SPARQL queries over the Linked Data cloud is becoming increasingly challenging.
Tiropanis, Thanassis, Davis, Hugh C., Wang, Xin   +2 more
core   +1 more source

On the Expressivity of ASK Queries in SPARQL

, 2020
As a major query type in SPARQL, ASK queries are boolean queries and have found applications in several domains such as semantic SPARQL optimization.
Feng, Zhiyong, Wang, Kewen, Wang, K, Feng, Z, Bussche, Jan Van den, Zhang, Xiaowang, Yang, Xuanxing, Zhang, X, Zhang, H, Yang, X, Zhang, Heng, van den Bussche, J   +11 more
core   +1 more source

Get All, Filter Details - On the Use of Regular Expressions in SPARQL Queries

SPARQL is the standardised query language for the RDF data model. To process literal strings, filter expressions can be used with regexes. However, regex can be slow due to its computational complexity. As an initial step towards this area, we present an
Gibbins, Nicholas, Aljaloud, Saud, Luczak-Rösch, Markus, Chown, Tim   +3 more
core   +1 more source

An empirical performance evaluation of a semantic-based data retrieving process from RDBs & RDF data storages

Maskana, 2017
SQL and, more recently, SPARQL are standard languages of the software industry for retrieving data. Other studies showed that retrieving data by using a SPARQL query is much slower than the semantically equivalent SQL query.
Leandro Tabares Martín, Félix Oscar Fernández Peña, Amed Abel Leiva Mederos, Jyrki Nummenmaa   +3 more
doaj  

Pemanfaatan Linked Data untuk Meningkatkan Kualitas Information Knowledge pada Resources Game Online

Jurnal Nasional Teknik Elektro dan Teknologi Informasi, 2017
This paper proposes an online game design that has resources with interoperability. Interoperability means the resources can share, re-used, and interlinked with another Unified Resources Identifier (URI).
Mohammad Yani
doaj   +1 more source

Leveraging Semantic Knowledge Graphs for Smart Manufacturing Integration via Asset Administration Shells

Proceedings of the International Conference on Applied Innovations in IT
Industrial 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, Sebastian Linke, Markus Müller, Tobias Tute, Rüdiger Mecke   +4 more
doaj   +1 more source