#SPARQL

@egonw.social.edu.nl.ap.brid.gy

2 weeks ago

Rescuing Scholia #3: We did it! It was not a set up, when I openly wondered if we would be able to rescue Scholia in time. I honestly did not know. Three weeks and some serious hacking by an international team later I was more optimistic. Actually, just before christmas, we started writing a SWAT4HCLS 2026 demonstration abstract. This was accepted and you can read the _Scholia 2026: Compliance with SPARQL 1.1_ preprint here and here. This paper describes the work that had to be done, and I am deeply grateful to everyone who contributed with smaller or bigger contributions (Daniel, Peter, Konrad, Johannes, Lars, Wolfgang, Hannah). I am merely first author for the demo, and just another contributor to the long series of patches, in a branch started by Prof. Hannah Bast. The work actually started long before that, with the _Robustifying Scholia_ grant (see doi:10.3897/rio.5.e35820), where we explored alternatives. The Wikidata graph (RDF) split has been long coming, and I can recommend this recent The Signpost article by Lane for a good overview. So, this would not have been possible with the many people who contributed over the years. But this last sprint really made a difference. The developments of the QLever software in the past year are very important, and the SPARQL endpoint we run now is live updated, just like we knew from the Wikidata Query Service (WDQS). Recent improvement allowed us to replace all the Wikidata and Blazegraph specific aspects of the SPARQL queries, and good discussions let to pragmatic approaches to keep localization features Scholia had for displaying query results from Wikidata. The work is not completed, however. All queries are SPARQL 1.1 now, but some can still be further optimized, and some still need some fixing. For example, I still spot some QIDs here and there, instead of the localized labels that should be shown instead. Also, we are actively looking in getting everything running again on WMF servers (see this overview issue), so that _scholia.toolforge.org_ works again. For now, however, please use qlever.scholia.wiki.

new blog: "Rescuing Scholia #3: We did it!" chem-bla-ics.linkedchemistry.info/2026/02/28/rescuing-scho... https://doi.org/10.59350/kd793-2fe02

"For now, however, please use qlever.scholia.wiki." https://qlever.scholia.wiki/

#wikidata #scholia #qlever #sparql

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Francesco Osborne

@fosborne.bsky.social

1 month ago

🔥 Generative AI can now answer complex scientific questions! Our latest paper evaluates the ability of #LLMs to answer questions over #KnowledgeGraphs through Natural Language to #SPARQL translation. Excellent results across multiple benchmarks.
📄 dl.acm.org/doi/10.1145/...

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Yasen - Enterprise Architecture

@yasenstar.bsky.social

1 month ago

Learn SPARQL 021 - 03.01 More Readable Query Results - using labels by DBpedia YouTube video by Yasen - Enterprise Architecture

Unlock the power of the Semantic Web! 🕸️✨

New video: Mastering #SPARQL labels & troubleshooting DBpedia schema changes. 📊

Watch: youtu.be/-l1kWg-7lWY

🚀 Want exclusive perks? Join my Channel Membership to support the mission! 💎

#SemanticWeb #GraphDB #Neo4j #DataScience

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Egon Willigh☮gen 🟥

@egonw.mastodon.social.ap.brid.gy

1 month ago

RE: https://openbiblio.social/@awinkler/115982827467465444

from the link GitHub issue: "Here is a demo of QLever handling one trillion triples on a single commodity PC: https://qlever.dev/one-trillion . That is more than fifty times larger than the current Wikidata" #sparql #rdf #opensource

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Alexander Winkler

@awinkler.openbiblio.social.ap.brid.gy

1 month ago

What is in #wikidata? The answer to this question on the Wikidata:Statistics page (https://www.wikidata.org/wiki/Wikidata:Statistics hasn't been updated for a while. This #sparql query run in #qlever provides a snapshot of the current situation (it's not […]

[Original post on openbiblio.social]

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Newres

@newres.bsky.social

1 month ago

Will AI Get Rid of this Turbulent Priest? From medieval misunderstandings to modern AI: why precision matters and how the Semantic Web can help.

From a turbulent priest in the Middle Ages to GenAI today, ambiguity has real consequences. I wrote a short article on how Semantic Web technologies can help:
www.newresalhaider.com/post/turbule...
#GenAI #LLM #Turtle #SPARQL #LinkedData #SemanticWeb

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Egon Willighagen

@egonw.social.edu.nl.ap.brid.gy

2 months ago

WikiPathways SNORQL UI Snorql: A SPARQL Explorer - Extended Edition

@jerven these owl:sameAs triples should now be live in the @wikipathways SPARQL endpoint (https://sparql.wikipathways.org/ and the PlantMetWiki endpoint (https://plantmetwiki.bioinformatics.nl/

#bioinformatics #sparql

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Albin Larsson

@abbe98.mastodon.social.ap.brid.gy

2 months ago

Release 0.8.0 · glaciers-in-archives/snowman Snowman 0.8.0 ⛄ TipHelp us shape Snowman's roadmap, by participating in the Snowman community survey! This Snowman release brings support for making SPARQL CONSTRUCT queries and a large collection...

Snowman, a static site generator for #SPARQL backends has had another release!

github.com/glaciers-in-archives/sno...

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@qdrddr.bsky.social

2 months ago

HyperMind is a #SymbolicAI reasoning stack & #agents with #KnowledgeGraph & build-in #RDF GraphDB. Transforms questions into verified, traceable answers.

#SPARQL 1.1, #Datalog rules, #OWL2 inference, GraphFrame analytics, & motif detection—unified interface.
#AI #OpenSource
Link in the 💬👇

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G.V() - Graph Database IDE

@gdotv.bsky.social

2 months ago

The Weekly Edge: Knowledge Graphs at Netflix & Bloomberg, Graphs on Postgres, & Make Your Music SPARQL [9 January 2026] Discover what’s new this week in graph tech, including a demo of graphs on PostgreSQL, a JanusGraph walkthrough, and interviews with Bloomberg and Netflix.

This ~week in graph tech news:
- #knowledgegraphs at @netflix.com
- Graphs on #Postgres
- KGs at @bloomberg.com
- Setting up #JanusGraph on #Azure
- Using #SPARQL to discover new music

All this and more in this edition of the Weekly Edge: gdotv.com/blog/weekly-...

#graphdatabases #RDF #backenddev

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Eric R. Scott

@leafyericscott.hachyderm.io.ap.brid.gy

2 months ago

RE: https://hachyderm.io/@LeafyEricScott/115850226576380708

#SPARQL turned out to not be necessary for this project after all, thank goodness.

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Eric R. Scott

@leafyericscott.hachyderm.io.ap.brid.gy

2 months ago

@maelle At least I *think* this is the most gentle introduction to #SPARQL for R users

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Pierre-Yves Beaudouin

@pyb75.bsky.social

2 months ago

Un peu de #SPARQL pour terminer la journée : voici le nombre de récompenses littéraires décernées en France (par année & genre) actuellement recensées dans #Wikidata. Manque encore pas mal de données, mais voici déjà 18000 récompenses. w.wiki/HCuu #PrixLitteraire

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Till Grallert

@tillgrallert.digitalcourage.social.ap.brid.gy

3 months ago

Original post on digitalcourage.social

#MarcXML encapsulated as a string in #JSON is a pain to work with as I am finding out trying to query #HathiTrust APIs for digitised items with a list of #OCLC numbers obtained via #SPARQL from #Wikidata.

Things I wish for:

1. direct access to the MARCXML from HathiTrust
2. a publicly […]

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Egon Willigh☮gen 🟥

@egonw.mastodon.social.ap.brid.gy

3 months ago

RE: https://social.edu.nl/@tgx_um/115645028833529913

on Monday we have a go/no-go and we really want to go

So, are you considering sign up before Sunday evening!

#ontologies #linkeddata #sparql

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Liam Broza

@liambroza.bsky.social

3 months ago

Love #SPARQL and #RDF? I do. This info was super hard to find and handy.

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Pierre-Yves Beaudouin

@pyb75.bsky.social

3 months ago

Qui a reçu le plus de prix littéraires français ? Voilà le classement pour les données dans Wikidata : Sorj Chalandon (15), Régis Debray (12), Alain Bosquet et Michel del Castillo (11). Et la requête SPARQL permettant de classer +10000 récipiendaires w.wiki/GS7R #PrixLittéraire #Wikidata #SPARQL

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Sylvain Machefert

@symac.bsky.social

3 months ago

Nathacha Appanah vient de recevoir le prix Goncourt des lycéens quelques jours après avoir reçu le Renaudot des lycéens, c'est la première fois depuis que les deux prix existent que cela arrive : w.wiki/GL6r #wikidata #sparql

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G.V() - Graph Database IDE

@gdotv.bsky.social

3 months ago

Please welcome the RDF legend Dr. Amir Hosseini to the G.V() team as the Data Scientist leading the design and implementation of #RDF / #SPARQL in G.V()! ✨

From COVID PhD to speeding up complex schema checks using RDBMSs, Amir is an expert we're happy to have on the team!

#SemanticWeb #datascience

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Till Grallert

@tillgrallert.digitalcourage.social.ap.brid.gy

3 months ago

Wir transformieren momentan die Konferenzankündigungen und -bericht, die seit gut zwei Jahrzehnten auf #HSozKult (@hsozkult ) publiziert werden, zu Linked Open Data. Heute haben wir gut 10000 Veranstaltungen zu #Wikidata gepusht (die Beiträge zu diesen […]

[Original post on digitalcourage.social]

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Ivo

@velitchkov.eu

3 months ago

Connected Data London 2025 A Talk by Ivo Velitchkov

Tired of the LLM noise? Let’s shift attention to something fully deterministic – rules running over a knowledge graph.

(now on the plane to London)

#SHACL #SPARQL
2025.connected-data.london/talks/rules-...

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Ivo

@velitchkov.eu

3 months ago

#SPARQL query patterns can be seen at 3 zoom levels: function, structure, ontology.
Within the function level, there are 3 categories of patterns: selectors, extractors, and aggregators. So every query can be assembled from LEGO blocks snapping at the same variables. More on that in a week.

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Rod Page

@rdmpage.bsky.social

3 months ago

Model Context Protocol (MCP) and triple stores: natural language queries for knowledge graphs Blog by Rod Page on biodiversity informatics, taxonomy, systematics, phylogeny, knowledge graphs, and other topics.

I wrote up some brief notes on Model Context Protocol (MCP) and triple stores iphylo.blogspot.com/2025/11/mode.... The idea of querying knowledge graphs using natural language is intoxicating.

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Till Grallert

@tillgrallert.digitalcourage.social.ap.brid.gy

3 months ago

Original post on digitalcourage.social

If you had the necessary resources (time and money) to digitise Arabic periodicals, one should probably start with this #SPARQL query to check #Wikidata for unique holdings: query-chest.toolforge.org/redirect/r9Gn5nKhkWUYgyY...

#ArabPeriodicalStudies […]

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Alexander Winkler

@awinkler.openbiblio.social.ap.brid.gy

3 months ago

Karte Berlins mit 67 blauen Punkten, die für je eine Fahrradreparaturstation stehen

kleiner Service-#SPARQL-Query für Radfahrer:innen in Berlin: Fahrradreparaturstationen in Berlin laut #openstreetmap, abgefragt mit #qlever: https://qlever.dev/osm-planet/7rq0zw?exec=true

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Adrian Gschwend

@ktk.netlabs.org

3 months ago

Super proud to share a new QLever milestone. We loaded one trillion triples on a single AMD Ryzen 9 machine with 16 cores and 128 GB RAM 🚀. Index size is 6.5 TB and the dataset runs even with less memory.

Dataset: qlever.dev/one-trillion/

#RDF #SPARQL #knowledgegraph #scaling

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G.V() - Graph Database IDE

@gdotv.bsky.social

4 months ago

The Weekly Edge: RDF Edition! [14 November 2025] Discover what’s new in the world of RDF triplestores this week, including beginner tutorials, ISWC coverage, and how RDF powers the Netflix knowledge graph.

The Weekly Edge: RDF Edition!

This week’s edition is all about #RDF triplestores and more:
- Hits from #ISWC 202
- A #SPARQL 1.2 tutorial
- The @netflix.com knowledge graph
- The #LPG vs RDF debate
- A hot take on #OWL
- and more!

Dive in here: gdotv.com/blog/weekly-...

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Alexander Winkler

@awinkler.openbiblio.social.ap.brid.gy

4 months ago

Original post on openbiblio.social

@jwoitkowitz hebt für das Kooperationsprojekt zwischen #GStA und @stabi_berlin hervor, dass öffentlich zugängliche Informationen zum Seminar für Orientalische Sprachen im Grunde nur die deutschen Mitglieder des Seminars betreffen. Hier gibt es eklatante Lücken, wie z.B. diese GND- […]

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G.V() - Graph Database IDE

@gdotv.bsky.social

4 months ago

RDF Support Is Now Available in G.V() [v3.41.99 Release Notes] Learn more about how the latest release of G.V() now supports RDF triplestores and the SPARQL query language with autocomplete, visualization, and more.

G.V() Now Supports #RDF Triplestores + SPARQL! ✨

We’re excited to welcome RDF fans with an entire suite of initial vendors, including: @awscloud, @StardogHQ, @TENTRIS_DB, @OpenLink & more

Full announcement here: gdotv.com/blog/gdotv-r...
#graphdatabases #SPARQL #dataviz

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International Semantic Web Conference (ISWC 2026)

@iswc-conf.bsky.social

4 months ago

🏅 Congratulations to the winners of the #ISWC2025 SemTab Challenge!

🎓 “ADFr: Knowledge Graph Entity Linking via Interactive Reasoning and Exploration with GRASP” by Sebastian Walter and Hannah Bast.

👏 A big round of applause to the authors!

#SemanticWeb #EntityLinking #SPARQL #Nara #Japan

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Posts tagged #SPARQL