Harald Sack · @lysander07
556 followers · 305 posts · Server sigmoid.social
Dylan Van Assche · @dylanvanassche
704 followers · 1087 posts · Server fosstodon.org

This year we will have another edition of the @VAIA on and !

This course touches the basics of Linked Data, , , , , Solid, and so you can use these technologies in your own products!

ugain.ugent.be/LDS2023.htm

#UGent #course #linkeddata #solid #knowledgegraph #rml #shacl #ShEx #ontologies

Last updated 1 year ago

Dylan Van Assche · @dylanvanassche
682 followers · 1012 posts · Server fosstodon.org

Towards a Mapping Framework for the Tenders Electronic Daily Standard Forms by Alexandros Vassiliades is now live at the Knowledge Graph Construction Workshop!

@eswc_conf

#eswc2023 #knowledgegraph #rdf #semanticweb #rml #R2RML #sparql #shacl

Last updated 1 year ago

Fabien Gandon · @fabien_gandon
141 followers · 14 posts · Server mas.to

๐Ÿ“ข Everything you always wanted to know about RDF literals by @pchampin

๐Ÿ“บ video: youtu.be/FTeZUDsKxqA

๐Ÿ“Š slides: notes.inria.fr/p/UNHx2tqTx#/

๐Ÿ”‘

๐Ÿ‘ฅ @inria @CNRS @w3c.social

#shacl #owl #sparql #literals #rdf

Last updated 2 years ago

AlexHenderson · @alexhenderson
120 followers · 106 posts · Server fosstodon.org

Just came across LinkML, a flexible modeling language allowing you to author schemas in that describe the structure of your data.
Validate/generate , , , , , , .
linkml.io
Thanks to for heads-up

#yaml #json #jsonld #rdf #sparql #shacl #ShEx #owl #OMENGFF

Last updated 2 years ago

Katja Hose · @katjahose
170 followers · 38 posts · Server mastodon.social

I'm happy and proud to see this work together with @chkashifrabbani and @kuzeko published at .

QSE is an approach that enables extracting validating shapes () from at the size of on a commodity machine!

Check it out
relweb.cs.aau.dk/qse/

vldb.org/pvldb/volumes/16/pape

#pvldb #shacl #knowledgegraphs #wikidata

Last updated 2 years ago

Daniel Dobriy (Q112275832) · @semantic
154 followers · 3 posts · Server fediscience.org
Daniel Dobriy (Q112275832) · @semantic
153 followers · 3 posts · Server fediscience.org
steffenr42 · @steffenr42
71 followers · 42 posts · Server openbiblio.social

Just came across "SHACL Test Suite and Implementation Report" (w3c.github.io/data-shapes/data) This could be interesting for adding appropriate tests to the / shape: github.com/skohub-io/shapes


@skohub

#skos #skohub #rdf #shacl

Last updated 2 years ago

Thomas Bergwinkl · @bergi
138 followers · 19 posts · Server mastodon.social

Testing my engine is much more convenient with a UI. Also integrated my experimental lib to generate coverage queries. It should help move forward faster to the first release ๐Ÿ˜€๏ธ

#shacl #sparql

Last updated 2 years ago

Thomas Bergwinkl · @bergi
134 followers · 16 posts · Server mastodon.social

I needed a faster JS validation engine with a coverage report, so I wrote one from scratch. Current state:

โ˜‘ passes test suite
โ˜‘ report contains coverage
โ˜‘ faster ๐Ÿš€๐Ÿš€๐Ÿš€
โ˜ code cleanup for release

#shacl

Last updated 2 years ago

Katja Hose · @katjahose
133 followers · 22 posts · Server mastodon.social

I'm happy to share that we got 2 papers accepted today.

The first one on "Extraction of Validating Shapes from very large Knowledge Graphs" was accepted at , authors: K. Rabbani, M. Lissandrini, K. Hose

The second one on "Scaling Large RDF Archives To Very Long Histories" was accepted at , authors: O. Pelgrin, R. Taelman, L. Galร rraga, K. Hose

@kuzeko

#vldb2023 #icsc2023 #knowledgegraphs #shacl #shapes #queryoptimization #sparql #rdf #archiving

Last updated 2 years ago

xk051 (ghost7) · @xk051
19 followers · 2350 posts · Server mastodon.sdf.org

66 statements, 66 triples

TopBraid, AllegroGraph and Virtuoso agree on the number of and statements in WF Schema deployed for Glossary of Wildland Fire () PMS205.

While not conclusive proof, I assert it is a reasonable sample of the exercise.

#rdf #rdfs #owl #shacl #GoWF

Last updated 2 years ago

· @steffenr42
19 followers · 19 posts · Server openbiblio.social

`sh:severity` in a constraint is not working. I guess because the spec says sh:severity only applies to Node Shapes, which a SPARQL constraint is not.

#sparql #shacl #til

Last updated 2 years ago

· @steffenr42
19 followers · 19 posts · Server openbiblio.social

based constraints in don't seem to allow `MINUS`. Alternative with `FILTER` and `NOT EXISTS` work.

...which I just found out is also mentioned in the spec :D

#shacl #sparql #til

Last updated 2 years ago

Dylan Van Assche · @dylanvanassche
440 followers · 629 posts · Server fosstodon.org

RT @SvenLieber
I'm very happy to announce that our paper about a comparison of and based visual notations got accepted by the @SW_Journal ๐ŸŽ‰ Many thanks to all co-authors and of course also the reviewers for their constructive comments! @IDLabResearch semantic-web-journal.net/conte

#VOWL #uml #shacl

Last updated 3 years ago

David Maus · @dmaus
81 followers · 148 posts · Server openbiblio.social

รœberraschend einfach, eine Ontology mit shape constraints in eine grammatik zu รผbersetzen.

github.com/dmj/vrsl/blob/maste

#rdf #shacl #relaxng

Last updated 6 years ago