Create accountLogin

Recent searches

No recent searches

Search options

Only available when logged in.
sigmoid.social is one of the many independent Mastodon servers you can use to participate in the fediverse.
A social space for people researching, working with, or just interested in AI!

Administered by:

Server stats:

654
active users

sigmoid.social: AboutProfiles directoryPrivacy policy

Mastodon: AboutGet the appKeyboard shortcutsView source codev4.3.8

#shacl

0 posts0 participants0 posts today
Public *
Marie Muller

📣 Appel à candidatures #SemWebPro !

La conférence semweb.pro est LA journée annuelle de présentations et de rencontres dédiées au #webSémantique dans le monde professionnel 🤓

Elle a lieu chaque année à Paris 📍

Le comité de programme souhaite intégrer de nouveaux membres ! Vous nous rejoignez ?

Candidature avant le 30 avril à contact@semweb.pro 📧

#semweb #websem #linkeddata #linkedopendata #knowledgegraph #thesaurus #ontology #RDF #SPARQL #SHACL #OWL #JSONLD

@semwebpro @logilab

Public
Marie Muller

"From validation of the data in the #knowledgeGraph to further projects of data integration and dissemination, many different usages of #SHACL specifications were explored for @europarl_en 's #OpenData Portal"

Soon in @veronahe 's book ! 📖

blog.sparna.fr/2025/04/09/euro

Sparna Blog · European Parliament Open Data Portal : a SHACL-powered knowledge graph - Sparna BlogA second usecase Thomas wrote for Veronika Heimsbakk’s SHACL for the Practitioner upcoming book is about Sparna’s work for the European Parliament. From validation of the data in the knowledge graph to further projects of data integration and dissemination, many different usages of SHACL specifications were explored… … and more exploratory usages of SHACL are foreseen ! “…
Public
David Pape

In RDF, how can I describe a scalar value? I need something like rdf:List or rdf:Seq or rdf:Alt but for a single value. Does this exist or do I have to invent my own (e.g. ex:Scalar)? I only need to use it as a kind of "tag" that says what the "outer type" or "cardinality" of a thing is. 🤔

#RDF#SHACL#SPARQL
Public
Paul Houle

🔗 SHACL-SKOS Based Knowledge Representation of Material Safety Data Sheet (SDS) for the Pharmaceutical Industry

arxiv.org/abs/2502.07944

arXiv.orgSHACL-SKOS Based Knowledge Representation of Material Safety Data Sheet (SDS) for the Pharmaceutical IndustryWe report the development of a knowledge representation and reasoning (KRR) system built on hybrid SHACL-SKOS ontologies for globally harmonized system (GHS) material Safety Data Sheets (SDS) to enhance chemical safety communication and regulatory compliance. SDS are comprehensive documents containing safety and handling information for chemical substances. Thus, they are an essential part of workplace safety and risk management. However, the vast number of Safety Data Sheets from multiple organizations, manufacturers, and suppliers that produce and distribute chemicals makes it challenging to centralize and access SDS documents through a single repository. To accomplish the underlying issues of data exchange related to chemical shipping and handling, we construct SDS related controlled vocabulary and conditions validated by SHACL, and knowledge systems of similar domains linked via SKOS. The resulting hybrid ontologies aim to provide standardized yet adaptable representations of SDS information, facilitating better data sharing, retrieval, and integration across various platforms. This paper outlines our SHACL-SKOS system architectural design and showcases our implementation for an industrial application streamlining the generation of a composite shipping cover sheet.
#rdf#shacl#skos
Public *
Marie Muller

What is the best way to make a #Sparnatural SHACL specification ?

Based on #HumaNum's #Nakala graph, here is a usecase of an automated version of Sparnatural Thomas submitted as an example for Veronika Heimsbakk’s upcoming book.

We look forward to reading @veronahe’s book, and you ?

blog.sparna.fr/2025/02/06/naka

Sparna Blog · Nakala : from an RDF dataset to a query UI in minutes - SHACL automated generation and Sparnatural - Sparna BlogHere is a usecase of an automated version of Sparnatural submitted as an example for Veronika Heimsbakk’s SHACL for the Practitioner upcoming book about the Shapes Constraint Language (SHACL). “ The Sparnatural knowledge graph explorer leverages SHACL specifications to drive a user interface (UI) that allows end users to easily discover the content of an RDF graph. What…
#dcterms#DigitalHumanities#EDM
Public
Marie Muller

New article on Sparna's blog !
How to produce a #SHACL fully written configuration for #Sparnatural ? Let's discover three different ways : manual, automated, off-the-shelf to encode both the structure of the #knowledgegraph ➕ some additional UI-oriented information.
blog.sparna.fr/2025/01/21/spar

Sparna Blog · Sparnatural SHACL configuration : manual, automated, off-the-shelf - Sparna BlogSparnatural is a knowledge graph visual browser made for end-users. The user is guided in the creation of her graph traversal query by selecting the kind of entities she is searching, how these entities are connected to other entities in the graph, and which properties she would like to have in her result columns. The…
Public *
David Pape

Does anyone know about #ontologies and tooling that allow me to parametrize #rdf graphs?

The concrete use case I have in mind is configuration of #shacl shapes. E.g., if I have a shape that checks for a string to be of a certain length, I want to be able to change that number. Or, if a shape checks whether a given parameter is part of a list, I want to configure this list.

I already implemented something that works for these two use cases but I would prefer reusing existing solutions 🙂

Public
Katja Hose

We are conducting a #survey to better understand the challenges, experiences, and practical applications of validating #RDF data using #SHACL and #ShEx.

Please help us get a better overview by sharing your insights:
forms.gle/LdXsG644obcgSsAE6

It only takes around 8 minutes.

Google DocsRDF Shape Languages SurveyHow long does this survey take to fill in? Approximately 8 minutes. Please note that half of the questions are skippable. What is the purpose of the study? The purpose of the study is to gather empirical data to better understand the landscape of RDF shape languages and their use, particularly with respect to the two most common validation languages SHACL and ShEx. Why have I been asked to take part? You have been asked to participate because you have worked with SHACL or ShEx. Do I have to take part? No, participation in this study is entirely up to you. You can withdraw from the study at any time, without giving a reason. What will happen to the results of this study? We will share the results of this study in a summarized form with participants and the community, potentially in the form of a blogpost or publication. Consent By proceeding with the study, I agree to all of the following statements: I have read and understood the above information. I understand that my participation is voluntary, and I can withdraw at any time. I consent to my anonymized data being used in academic studies, publications, and presentations. Organizers and contact Katja Hose (katja.hose@tuwien.ac.at) Maxime Jakubowski (maxime.jakubowski@tuwien.ac.at) Dominik Tomaszuk (dominik.tomaszuk@tuwien.ac.at)
Public
W3C Developers

📢 Creation of the @w3c Data Shapes #WorkingGroup which mission is to align data shapes standards with the latest versions of core Semantic Web standards, including support for #RDFstar
▶️ w3.org/groups/wg/data-shapes/

This group aims to update SHACL to align with #RDF & #SPARQL 1.2 versions, extend #SHACL specifications and develop new SHACL-based specs.

More info in the group's charter: w3.org/2024/12/data-shapes.htm

W3CData Shapes Working GroupThe mission of the Data Shapes Working Group is to update data shapes standards in line with the versions of core Semantic Web standards that cater for RDF-star and to extend the applications of data shapes with new packaging and use specifications.
ExploreLive feeds
About