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#rdf

3 posts3 participants0 posts today
Larry Swanson

Semantic technologies permit powerful connections across #linkedData resources on the web. Until recently, developers had to learn the #RDF language to discover and use these resources.

Leveraging the new Model Context Protocol and LLM-powered natural-language interfaces, @Emekaokoye has created the RDF Explorer, an #MCP service that lets any developer surf the semantic web without having to learn its specialized language.

knowledgegraphinsights.com/eme

Harald Sack

Tomorrow, we will dive deeper into ontologies with OWL, the Web Ontology Language. However, I'm doing OWL-lectures now for almost 20 years - and OWL as well as the lecture haven't changed much. So, I'm afraid I'm going to surprise/dissapoint the students tomorrow, when I will switch off the presentation and start improvising a random OWL ontology with them on the blackboard ;-)

#ise2025 #OWL #semanticweb #semweb #RDF #knowledgegraphs @fiz_karlsruhe @fizise @tabea @sourisnumerique @enorouzi

Continued thread
LibreABC

#SPARQL (SPARQL Protocol and RDF Query Language) est un langage conçu pour interroger et manipuler des données au format #RDF (Resource Description Framework), un modèle utilisé pour représenter des données sous forme de graphe, élément clé du Web sémantique. Toutes les données de Wikidata peuvent ainsi être décrites comme un triplet : sujet – prédicat – objet.
Cet atelier propose une initiation à SPARQL et au Wikidata Query Service.
#LibreABC2025

LibreABC

Thomas Kerboul, de la Bibliothèque de Genève, animera un atelier lors de la journée #LibreABC2025 sur les jeux de données dans #Wikidata.
#SPARQL #RDF

Description:
Wikidata est une base de connaissances libre et ouverte offrant un accès à des données structurées. Au-delà de la consultation élément par élément, Wikidata permet de visualiser une grande quantité de données sous forme de tableaux, de cartes ou encore de chronologies et de créer ses propres jeux de données grâce au langage SPARQL.

isws

As Heiko Paulheim is referring in his tutorial at ISWS 2025, his presentation on RDF2vec is not an individual contribution, but an effort of a great team of PhDs, PostDocs & students from his research group at University of Mannheim.

#isws2025#summerschool#tutorial
kvistgaard

While working on a graph partitioning strategy, I stumbled upon an interesting paper
jbiomedsem.biomedcentral.com/a
So, let me ask, what successful strategies for multi-level partitioning with #RDF named graphs have you applied or know about?
(beyond this paper and what it cites)

BioMed CentralSemantic units: organizing knowledge graphs into semantically meaningful units of representation - Journal of Biomedical SemanticsBackground In today’s landscape of data management, the importance of knowledge graphs and ontologies is escalating as critical mechanisms aligned with the FAIR Guiding Principles—ensuring data and metadata are Findable, Accessible, Interoperable, and Reusable. We discuss three challenges that may hinder the effective exploitation of the full potential of FAIR knowledge graphs. Results We introduce “semantic units” as a conceptual solution, although currently exemplified only in a limited prototype. Semantic units structure a knowledge graph into identifiable and semantically meaningful subgraphs by adding another layer of triples on top of the conventional data layer. Semantic units and their subgraphs are represented by their own resource that instantiates a corresponding semantic unit class. We distinguish statement and compound units as basic categories of semantic units. A statement unit is the smallest, independent proposition that is semantically meaningful for a human reader. Depending on the relation of its underlying proposition, it consists of one or more triples. Organizing a knowledge graph into statement units results in a partition of the graph, with each triple belonging to exactly one statement unit. A compound unit, on the other hand, is a semantically meaningful collection of statement and compound units that form larger subgraphs. Some semantic units organize the graph into different levels of representational granularity, others orthogonally into different types of granularity trees or different frames of reference, structuring and organizing the knowledge graph into partially overlapping, partially enclosed subgraphs, each of which can be referenced by its own resource. Conclusions Semantic units, applicable in RDF/OWL and labeled property graphs, offer support for making statements about statements and facilitate graph-alignment, subgraph-matching, knowledge graph profiling, and for management of access restrictions to sensitive data. Additionally, we argue that organizing the graph into semantic units promotes the differentiation of ontological and discursive information, and that it also supports the differentiation of multiple frames of reference within the graph.
Continued thread
SAPA

@libreabc

Notre prochaine intervention à #LibreABC le 9 septembre prochain s'intitule "Comment gérer ses fonds d’archives sous forme de données liées au moyen de la plateforme libre ResearchSpace"

Cela sera l'occasion de promouvoir l'utilisation de #RDF natif pour gérer des collections et de plaider pour une mutualisation des coûts de développement dans ce domaine.

performing-arts.ch/

researchspace.org/

#LOD
#ResearchSpace
#RecordsInContexts
#archives
#archivCH

www.performing-arts.chSwiss Performing Arts Platform
Larry Swanson

Since the #semanticWeb was introduced almost 25 years ago, many have dismissed it as a failure.

Charles Ivie shows that the #RDF standard and the #knowledgeRepresentation technology built on it have actually been quite successful.

More than half of the world's web pages now share semantic annotations, and the widespread adoption of knowledge graphs in enterprises and media companies is only growing as #enterpriseAI architectures mature.

knowledgegraphinsights.com/cha

Santiago

Gracias al @flisoluy (2025) y @wikimedistasuy, pude inferir que #Wikimedia tiene sus datos en #RDF. Yo no tenía ni idea, pero cuando lo pensás, ¡es obvio! 🤦 WM tiene la mayor BD de conocimiento libre, **en un formato estándar** e **interconectable**.

Mi respuesta durante la charla no estaba nada preparada, claro. Así que agrego, esos estándares facilitan relacionar datos de WM con OSM (wiki.openstreetmap.org/wiki/RD), con legislación de la EU (eur-lex.europa.eu/eli-register), o un largo etc.

Qué maravilla.

wiki.openstreetmap.orgRDF - OpenStreetMap Wiki
*
Jez 🍞🌹

New blog post! I've started taking regular snapshots of Library of Congress linked open data (as part of a much broader data rescue and monitoring project) and took the opportunity to finally get to grips with #SPARQL, #RDF and all that comes along with it. I've started small though...

On fooling around with triples
erambler.co.uk/blog/on-fooling

erambler.co.ukOn fooling around with triplesa blog about research communication & higher education & open culture & technology & making & librarianship & stuff
*
Marie Muller

Porté par le #SIAF, le portail #FranceArchives offre une recherche fédérée dans près de 26 millions de métadonnées d' #archives produites par près de 170 institutions et entièrement #RDF-isées avec #RicO !

Un #graphe qui a tout pour être #Sparnatural-isé 😀

#websémantique #donnéesliées #SPARQL #ontologie #EAC #EAD #EAG #schema @archivistodon

blog.sparna.fr/2025/02/14/reto

Sparna Blog · Retour sur ... Le déploiement de Sparnatural pour FranceArchives - Sparna BlogVoilà maintenant près d’un an et demi que FranceArchives, le Portail national des Archives de France, a annoncé le déploiement de l’outil « Supernatural » (comprendre Sparnatural) via ses réseaux, dans l’optique de proposer à ses usagers « un accès nouveau aux métadonnées archivistiques, complémentaire de la recherche classique par le moteur du portail ».…
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