Results 81 to 90 of about 23,746 (255)

An Approach of Automatic SPARQL Generation for BIM Data Extraction

Applied Sciences, 2020
Generally, building information modelling (BIM) models contain multiple dimensions of building information, including building design data, construction information, and maintenance-related contents, which are related with different engineering ...
Dongming Guo, Erling Onstein, Angela Daniela La Rosa   +2 more
doaj   +1 more source

Modeling and Accessing Smart Materials with Integrity Constraints in the Shapes Constraint Language and Ontologies—The SmaDi Way

Advanced Engineering Materials, Volume 27, Issue 8, April 2025.
Integrity constraints enforce consistency and completeness on data. The article discusses a newly developed validator for checking integrity constraints in Shapes Constraint Language (SHACL) through reduction to SPARQL Protocol and RDF Query Language (SPARQL) queries. It can be used with systems for ontology‐based database access.
Özgür L. Özçep, Mena Leemhuis, Maximilian Winkler, Robert Courant, Thomas Sattel, Jürgen Maas   +5 more
wiley   +1 more source

An extension of SPARQL for expressing qualitative preferences

, 2017
In this paper we present SPREFQL, an extension of the SPARQL language that allows appending a PREFER clause that expresses "soft" preferences over the query results obtained by the main body of the query.
C Domshlak, ED Valle, EGJ Coffman, J Cheng, J Chomicki, J Pérez, J Rosati, JP Delgrande, K Stefanidis, L Polo, S Magliacane, T Berners-Lee, W Siberski   +12 more
core   +1 more source

Ontology‐Based Data Acquisition, Refinement, and Utilization in the Development of a Multilayer Ferrite Inductor

Advanced Engineering Materials, Volume 27, Issue 8, April 2025.
Multilayer ferrite inductor prototypes are fabricated by cofiring metallized tapes of NiCuZn ferrite and glass‐ceramic composite. Prerequisites for a predictive component simulation are discussed. An automated data‐pipeline stores and semantically links the experimental data acquired in the study according to a domain ontology.
Björn Mieller, Sahar Ben Hassine, Jörg Töpfer, Christoph Priese, Arne Bochmann, Beate Capraro, Sebastian Stark, Uwe Partsch, Carina Fresemann   +8 more
wiley   +1 more source

A hands-on introduction to querying evolutionary relationships across multiple data sources using SPARQL [version 1; peer review: 1 approved, 2 approved with reservations]

F1000Research, 2019
The increasing use of Semantic Web technologies in the life sciences, in particular the use of the Resource Description Framework (RDF) and the RDF query language SPARQL, opens the path for novel integrative analyses, combining information from multiple ...
Ana Claudia Sima, Christophe Dessimoz, Kurt Stockinger, Monique Zahn-Zabal, Tarcisio Mendes de Farias   +4 more
doaj   +1 more source

Open Data Consumption Through the Generation of Disposable Web APIs

IEEE Access, 2021
The ever-growing amount of information in today’s world has led to the publication of more and more open data, i.e., that which is available in a free and reusable manner, on the Web.
Paloma Caceres Garcia De Marina, Jose Maria Cavero Barca, Carlos E. Cuesta, Miguel Angel Garrido, Irene Garrigos, Cesar Gonzalez-Mora, Jose-Norberto Mazon, Almudena Sierra-Alonso, Belen Vela, Jose Jacobo Zubcoff   +9 more
doaj   +1 more source

Concepts for a Semantically Accessible Materials Data Space: Overview over Specific Implementations in Materials Science

Advanced Engineering Materials, Volume 27, Issue 8, April 2025.
This manuscript presents advances in digital transformation within materials science and engineering, emphasizing the role of the MaterialDigital Initiative. By testing and applying concepts such as ontologies, knowledge graphs, and integrated workflows, it promotes semantic interoperability and data‐driven innovation. The article reviews collaborative
Bernd Bayerlein, Jörg Waitelonis, Henk Birkholz, Matthias Jung, Markus Schilling, Philipp v. Hartrott, Marian Bruns, Jörg Schaarschmidt, Kristian Beilke, Marcel Mutz, Vincent Nebel, Veit Königer, Lisa Beran, Tobias Kraus, Akhilesh Vyas, Lars Vogt, Moritz Blum, Basil Ell, Ya‐Fan Chen, Tina Waurischk, Akhil Thomas, Ali Riza Durmaz, Sahar Ben Hassine, Carina Fresemann, Gordian Dziwis, Hossein Beygi Nasrabadi, Thomas Hanke, Melissa Telong, Stephan Pirskawetz, Mohamed Kamal, Thomas Bjarsch, Ursula Pähler, Peter Hofmann, Mena Leemhuis, Özgür L. Özçep, Lars‐Peter Meyer, Birgit Skrotzki, Jörg Neugebauer, Wolfgang Wenzel, Harald Sack, Chris Eberl, Pedro Dolabella Portella, Tilmann Hickel, Lutz Mädler, Peter Gumbsch   +44 more
wiley   +1 more source

Predicting SPARQL Query Performance [PDF]

, 2014
We address the problem of predicting SPARQL query performance. We use machine learning techniques to learn SPARQL query performance from previously executed queries. We show how to model SPARQL queries as feature vectors, and use k-nearest neighbors regression and Support Vector Machine with the nu-SVR kernel to accurately (\(R^2\) value of 0.98526 ...
Hasan, Rakebul, Gandon, Fabien
openaire   +4 more sources

On Query-Update Independence for SPARQL [PDF]

Proceedings of the 24th ACM International on Conference on Information and Knowledge Management, 2015
This paper investigates techniques for detecting independence of SPARQL queries from updates. A query is independent of an update when the execution of the update does not affect the result of the query. Determining independence is especially useful in the context of huge RDF repositories, where it permits to avoid expensive yet useless re-evaluation ...
Guido, Nicola, Genevès, Pierre, Layaïda, Nabil, Roisin, Cécile   +3 more
openaire   +5 more sources

Revealing Secrets in SPARQL Session Level [PDF]

arXiv, 2020
Based on Semantic Web technologies, knowledge graphs help users to discover information of interest by using live SPARQL services. Answer-seekers often examine intermediate results iteratively and modify SPARQL queries repeatedly in a search session. In this context, understanding user behaviors is critical for effective intention prediction and query ...
arxiv