Lmst

In this blog post at https://s.gwdg.de/m5Bu3L I showcase the #NFDI4BIOIMAGE (@nfdi4bioimage@nfdi.social, @nfdi4bioimage@bird.makeup) #knowledgegraph and its function as a registry for public #OMERO image data repositories and their respective #SPARQL endpoints. Annotated #bioimage data has become part of the #semanticweb. @joshmoore @Andrawaag #nfdi #metadata #KnowledgeGraphs #ontop #r2rml #rdf

@lysander07

#SPARQL query selecting all statements:

https://sparql.org/sparql?query=SELECT+*%0D%0AFROM+%3Chttp%3A%2F%2Frdf.greggkellogg.net%2Fdistiller%3Furl%3Dhttps%3A%252F%252Fcsarven.ca%252Flinked-research-decentralised-web%26command%3Dserialize%26raw%3E%0D%0AWHERE+%7B%0D%0A%3Fs+%3Fp+%3Fo.%0D%0A%7D&default-graph-uri=&output=xml&stylesheet=%2Fxml-to-html.xsl

```
SELECT *
FROM <http://rdf.greggkellogg.net/distiller?url=https:%2F%2Fcsarven.ca%2Flinked-research-decentralised-web&command=serialize&raw>
WHERE {
?s ?p ?o.
}
```

778 specific citations based on Citation Type Ontology. This is not just "document cites document" but specific thing within cites another specific thing elsewhere on the web).

https://sparql.org/sparql?query=SELECT+*%0D%0AFROM+%3Chttp%3A%2F%2Frdf.greggkellogg.net%2Fdistiller%3Furl%3Dhttps%3A%252F%252Fcsarven.ca%252Flinked-research-decentralised-web%26command%3Dserialize%26raw%3E%0D%0AWHERE+%7B%0D%0A%3Fs+%3Fp+%3Fo.%0D%0AFILTER+STRSTARTS%28STR%28%3Fp%29%2C+%22http%3A%2F%2Fpurl.org%2Fspar%2Fcito%2F%22%29%0D%0A%7D%0D%0A&default-graph-uri=&output=xml&stylesheet=%2Fxml-to-html.xsl

```
SELECT *
FROM <http://rdf.greggkellogg.net/distiller?url=https:%2F%2Fcsarven.ca%2Flinked-research-decentralised-web&command=serialize&raw>
WHERE {
?s ?p ?o.
FILTER STRSTARTS(STR(?p), "http://purl.org/spar/cito/")
}
```

#KnowledgeGraph

@lysander07 What I like about this view is that info is not necessarily complete. Typical real-world data. So, some queries will not show everything there is to know about a topic while a lot of info may be for other things. Though it can be extended - "pay as you go".

Some students may also be interested in expressing their research output as a #KnowledgeGraph on its own right - playing an important role in #ScholarlyCommunication

eg view: https://dokie.li/?graph=https://csarven.ca/linked-research-decentralised-web

seeAlso alt text.

#ISE2025

Graph view of http://csarven.ca/linked-research-decentralised-web based on underlying structured data (in RDFa) with legend expressing number of statements (3148) and uniqur nodes (2022), as well as information about the tool generated it ( https://dokie.li/ ) and the license (CC BY 4.0). The graph depicts connected nodes in different colours, with their general class, internal/external references, citations, social connections, datasets, requirements, advisements, specifications, policies, events, slides, and concepts.

Ontop is a virtual #KnowledgeGraph system. It exposes the content of arbitrary relational databases as knowledge graphs. It's a graph API ontop of SQL data with connectors to all the main SQL databases.. https://ontop-vkg.org/

Rich modelling capabilities and super fast time series:

The Ontop virtual knowledge graph engine got support for TDEngine time series database with this pull request: https://github.com/ontop/ontop/pull/875

This will be one of the many exciting new features of the next stable release of Ontop.

#knowledgegraph
#timeseries

Sensor data model from SOSA ontology with a time series diagram in the background. Ontop and TDEngine logos on the lower part.

VUB 🇧🇪 is hunting for a #postdoc / #Research Engineer who vibes with #nlp + ontologies.

We juggle:
💻 Python & transformers
🗂️ #ontology craft
🔍 #knowledgegraph wizardry

Partial remote? Totally cool.

DM me if you’re curious — and feel free to boost! 🚀 #NLP #semanticweb

In the next tutorial, Lise Stork from University of Amsterdam and Stefano di Grigoris from VU Amsterdam are introducing us into Ontology and Knowledge Modeling.

#isws2025 #tutorial #semanticweb #ontology #ontologies #knowledgegraph

Lise Stork (left) and Stefano de Grigoris (right) standing in front of the projection showing their cover slide for the Ontology and Knowledge MOodelling tutorial

#Geospatial Index Improvements for Apache Jena #GeoSPARQL will be available in the next version: https://github.com/apache/jena/issues/3026

#KnowledgeGraph #SemanticWeb

Here’s an example of A2A and MCP working in concert: a Data Twingler Agent—built from tools that perform SQL or SPARQL queries—responds to requests from an A2A Orchestrator, which receives input from the user.

#MCP #A2A #Screencast #OPAL #SQL #SPARQL #DataSpaces #KnowledgeGraph #DBMS

Cartographier les façons de modéliser les tags

https://forum.openstreetmap.fr/t/cartographier-les-facons-de-modeliser-les-tags/34629

#openstreetmap #pim #knowledgeGraph #triplets

Pour documenter les différentes façons générales d’articuler des tags et aider les personnes qui souhaitent se lancer dans la création ou l’amélioration de modèles de tags, je me disais qu’il serait bien de formaliser les quelques façons générales de faire, et de mettre ça dans une page du wiki. J’avais commencé une ébauche dans la page Anatomie des étiquettes OSM, mais je me dis que ça a peut être déjà été réfléchi ailleurs, peut être sous d’autres noms (du typage de variable?). Nous n’avons ...

🧰 This is what modern AI infrastructure looks like.

Here’s a quick showcase featuring @AnthropicAI
’s Claude Desktop interacting with a live OPAL instance that queries the DBpedia Knowledge Graph—entirely instructed using natural language.

#MCP #OPAL #AI #GenAI #KnowledgeGraph

A new snapshot release of the #dblp data set has been published. #opendata #linkeddata #knowledgegraph
https://doi.org/10.4230/dblp.rdf.ntriples
https://doi.org/10.4230/dblp.xml

Ich war im #OMT #Podcast und hab mich zum Thema #Google #KnowledgeGraph ausfragen lassen.

https://www.omt.de/podcast/googles-geheimes-gehirn-den-knowledge-graph-fuer-dich-nutzen-263/

just spend 30 minutes trying to find the bug in my #knowledgegraph script generator. It was a space in the prefix. This website is gonna be my official #rdf #sparql monday #rant space, because it's monday and all my colleagues are in home office on monday, so i can't emotionally unload on them. I just need to write this and send it out there because the frustration is getting intense.

Why Should You Care? MCP-accessible, free, widely used edition of an innovative multi-model DBMS and application server—powered entirely by open protocols and query language implementations. #OpenSource #VirtuosoRDBMS #KnowledgeGraph #SPARQL #SQL #GraphQL #DBMS #DataSpaces #MCP

RE: https://bsky.app/profile/did:plc:msn6dzc65e4sukpqsp2z4bwi/post/3lpp22m74xs2o

Anhand von Opernaufführungen aus dem Portal Partitura des #DHI #Rom zeigt Torsten Schrade die Integration von römischen #Kulturdaten in den #KnowledgeGraph von #NFDI4Culture

💻 http://partitura.dhi-roma.it/

💡 Mithilfe von Datenföderation bzw. #LinkedOpenData wird es möglich, Vergleiche von Kulturdaten untereinander anzustellen und so ganz neue Forschungsperspektiven zu eröffnen ‼️

🔖 Fallstudie: Eine italienische Datenreise, https://doi.org/10.5281/zenodo.15072402

nfdi4culture.de/id/E6144

#NFDI #datenqualitat
^gp

Fazit: Datenföderation bringt neue Forschungsperspektiven

Folie: Torsten Schrade

Linked Open Data bei dem Portal Partitura

Folie: Torsten Schrade

fächerübergreifende Konnektivität des Culture Knowledge Graph

Folie: NFDI4Culture

Dear registered students for ISWS 2025, please keep in mind that the deadline for the poster submission is not far away...
We are looking forward to your submissions!

#isws2025 #summerschool #semanticweb #semweb #llm #nlp #knowledgegraph #AI #responsibleAI #reliableAI @sourisnumerique @lysander07