oh, missed this one! https://doi.org/10.1021/acs.jcim.3c00820

"Most of the information about chemical species are sourced from #PubChem and #ChEBI data on the respective compound Web pages using a software agent, making OntoSpecies a comprehensive semantic database of chemical species able to solve novel types of problems in the field. Access to this reliable source of chemical data is provided through a #SPARQL end point."

Ruben Taelman, Elias Crum: Did AI Crawlers Kill SPARQL Federation?
Paper from KG4S 2026, May 10/11 2026

"While many KGs have been available as public SPARQL endpoints, their openness is currently being challenged by the huge load that is placed on them by modern AI crawlers that power LLMs. [...] many federated SPARQL queries that used to work, simply can not be executed anymore with state of the art techniques."

https://rubensworks.github.io/article-did-llms-kill-sparql-federation/

#sparql #wikidata #ai

#Gitterdan GmbH has released, #SPARQLMojo, our #ORM library for #SPARQL as an #OpenSource project on #Codeberg.

https://pypi.org/project/SPARQLMojo/

(At some point I'll write a blog post about what it's like developing a library like this from scratch using #Claude. 😅)

J'adore écrire des articles à rallonge sur des trucs qui n'intéressent pas grand monde, donc voilà un article beaucoup trop long sur RDF, SPARQL, comment on self-host un serveur SPARQL pour faire des requêtes avec ses propres données (avec comme serveurs présentés Oxigraph, QLever et MillenniumDB), et comment on convertit des données d'OpenStreetMap pour faire des requêtes SPARQL avec.
Featuring beaucoup trop d'exemples parlant de trains.

https://princesse.moe/articles/notes-rdf-sparql.html

#rdf #sparql #openstreetmap

this week I learned that there is a SPARQL endpoint with the @OpenAlex content: https://semopenalex.org/resource/semopenalex:About

#sparql

En mi último proyecto he utilizado Wikidata y SPARQL para explorar conexiones humanas de "larga data" que escapan a los libros de historia tradicionales. Al modelar personas como nodos y relaciones (como wdt:P40 "hijo/a de") como aristas, podemos recorrer linajes enteros en milisegundos.

🔗 Puedes leer el artículo completo y ver las visualizaciones aquí: [https://javiermurcia.tech/datos-enlazados-y-relaciones-humanas-en-la-historia/] demo: [https://javiermurcia.tech/lab/genealogias/index.html ]

#KnowledgeGraphs #WebSemantica #SPARQL #DataScience #DataArchitecture