W3C

– DRAFT –
RDF-star Semantics TF

31 January 2025

Attendees

Present
AndyS, doerthe, gkellogg, pfps, TallTed
Regrets
-
Chair
enrico
Scribe
ad-hoc

Meeting minutes

<gb> Pull Request 74 fix some punctuation and such in semantics.md (by TallTed)

<gb> Pull Request 74 Update RDF-semantics with the liberal baseline RDF and RDFS semantics (by franconi) [spec:substantive]

<gb> CLOSED Action 49 put in the repo the "source of truth" for labels (on pchampin) due 13 Apr 2023

<gb> Issue 61 CSS changes reduce readability of documents (by pfps) [needs discussion]

<gb> Issue 70 New entailment pattern rdfD1 (by doerthe)

<gb> CLOSED Pull Request 70 Update semantics.md to improve readability of example (by rat10)

<gb> Issue 61 Explain how classic RDF reification relates to triple terms and rdf:reifies (by niklasl) [spec:editorial]

<gb> Issue 49 Define an interpretation of Triple Terms (by niklasl) [needs discussion]

<AndyS> https://www.w3.org/TR/rdf12-concepts/#data-model

discuss PR #74

<pfps> I just created w3c/rdf-semantics#76 on completeness of the RDFS entailment rules.

<gb> Issue 76 completeness of RDFS entailment rules (by pfps)

<enrico> issue https://pr-preview.s3.amazonaws.com/franconi/rdf-semantics-fork-enrico/pull/74.html#dfn-rdfs14

<TallTed> s|discuss the open issues in RDF-semantics: #49, #61, #70 |discuss the open issues in RDF-semantics: https://github.com/w3c/rdf-semantics/issues/49, https://github.com/w3c/rdf-semantics/issues/61, w3c/rdf-semantics#70 |

<AndyS> Please put <p class="issue" data-number="76">TEXT</p> in the doc at the appropriate place.

<niklasl> +1

<doerthe> can you give the link again, I forgot the number we are discussing

<enrico> Mu comment: w3c/rdf-semantics#61 (comment)

<gb> Issue 61 Explain how classic RDF reification relates to triple terms and rdf:reifies (by niklasl) [spec:editorial]

<niklasl> and w3c/rdf-semantics#49

<gb> Issue 49 Define an interpretation of Triple Terms (by niklasl) [needs discussion]

<niklasl> w3c/rdf-ucr#27

<gb> Issue 27 Integrating different ontology designs through entailment upon triple terms (by niklasl) [use case]

<pfps> Yes, unstar is just a crutch.

<gb> Issue 61 Explain how classic RDF reification relates to triple terms and rdf:reifies (by niklasl) [spec:editorial]

<Zakim> enrico, you wanted to comment on going via w3c/rdf-semantics#61 (comment)

<doerthe> don't start the discussion please, but we could still drop injectivity ;)

<enrico> 😱

<tl> +! to d. :P

<enrico> :A :R :D .

<enrico> :D :R :A .

<enrico> :T rdf:type :D .

<enrico> :A rdfs:subclassof :A .

<enrico> OWL-entails if metamodelling triple could be in the ABox graph (but not RDFS-entails):

<enrico> _:x :R _:y .

<enrico> _:z rdf:type _:y .

<enrico> _:x rdfs:subclassof :D .

<doerthe> I will think about it and come back to it

<enrico> unstar in sparql, a (wrong) proposal: w3c/rdf-semantics#61 (comment)

<gb> Issue 61 Explain how classic RDF reification relates to triple terms and rdf:reifies (by niklasl) [spec:editorial]

<niklasl> https://github.com/w3c/rdf-star-wg/wiki/Converting-RDF-1.2-data-to-RDF-1.1

<enrico> unstar definition: w3c/rdf-semantics#61 (comment)

<niklasl> w3c/rdf-concepts#115

<gb> Pull Request 115 add section about 'unstar' mapping (by pchampin) [spec:enhancement]

<niklasl> w3c/rdf-star-wg#114

<gb> Issue 114 Un-star operation to support RDF Dataset Canonicalization? (by niklasl) [needs discussion]

<niklasl> Cf. https://w3c.github.io/rdf-schema/spec/

<enrico> Proposal: approve PR #74, once final minor fixes done by Enrico: (a) wording of rfds14, (b) deleting offending external references, (c) refer to an issue on completeness of entailment pattern for rdfs:Proposition

<gb> Pull Request 74 fix some punctuation and such in semantics.md (by TallTed)

<pfps> +1

<enrico> +1

<tl> +1

<doerthe> +1

<gkellogg> +1

<enrico> and (d) typos fixed by doerthe

<TallTed> +1

<enrico> w3c/rdf-semantics#74

<gb> Pull Request 74 Update RDF-semantics with the liberal baseline RDF and RDFS semantics (by franconi) [spec:substantive]

<niklasl> +1 (on good faith)

ACTION: by enrico: write to mailing list to open an issue unifying all the discussions on unstar and related approaches

<gb> Cannot create action. Validation failed. Maybe by enrico is not a valid user for w3c/rdf-star-wg?

<enrico> enrico will write to mailing list to open an issue unifying all the discussions on unstar and related approaches

<TallTed> is this the RESOLUTION? : approve https://github.com/w3c/rdf-semantics/pull/74, once final minor fixes done by Enrico: (a) wording of rfds14, (b) deleting offending external references, (c) refer to an issue on completeness of entailment pattern for rdfs:Proposition, and (d) typos fixed by doerthe

RESOLUTION: approve https://github.com/w3c/rdf-semantics/pull/74, once final minor fixes done by Enrico: (a) wording of rfds14, (b) deleting offending external references, (c) refer to an issue on completeness of entailment pattern for rdfs:Proposition, and (d) typos fixed by doerthe

Summary of action items

  1. by enrico: write to mailing list to open an issue unifying all the discussions on unstar and related approaches

Summary of resolutions

  1. approve https://github.com/w3c/rdf-semantics/pull/74, once final minor fixes done by Enrico: (a) wording of rfds14, (b) deleting offending external references, (c) refer to an issue on completeness of entailment pattern for rdfs:Proposition, and (d) typos fixed by doerthe
Minutes manually created (not a transcript), formatted by scribe.perl version 242 (Fri Dec 20 18:32:17 2024 UTC).

Diagnostics

Failed: s|discuss the open issues in RDF-semantics: [#49](https://github.com/w3c/rdf-semantics/issues/49), [#61](https://github.com/w3c/rdf-semantics/issues/61), [#70](https://github.com/w3c/rdf-semantics/issues/70) |discuss the open issues in RDF-semantics: https://github.com/w3c/rdf-semantics/issues/49, https://github.com/w3c/rdf-semantics/issues/61, https://github.com/w3c/rdf-semantics/issues/70 |

Active on IRC: AndyS, doerthe, enrico, gkellogg, niklasl, pfps, TallTed, tl