Gregg Kellogg

@gkellogg
224 Followers
114 Following
113 Posts
Mostly retired semweb, open source, connected media, Ruby, Unix, NeXT developer. Still pretty active at W3C.
Formerly @gkellogg on Twitter.
#semweb #jsonld #rdf
Homepagehttps://greggkellogg.net/
Show threadGregg KelloggJul 11, 2025
@nik sorry/not sorry. 
Gregg KelloggApr 4, 2025
RDF 1.2 Primer is published. This provides a good introduction to the changes to RDF based on RDF-star, and other changes. https://www.w3.org/TR/rdf12-primer/
RDF 1.2 Primer

This primer is designed to provide the reader with the basic knowledge required to effectively use RDF. It introduces the basic concepts of RDF and shows concrete examples of the use of RDF. Secs. 3-5 can be used as a minimalist introduction into the key elements of RDF. Changes between RDF 1.1 and RDF 1.2 are summarized in a separate document: What’s New in RDF 1.2 [RDF12-NEW].

Show threadGregg KelloggMar 27, 2025
@hochstenbach speaking as an American, I fully endorse this view. Not safe to visit for the next four years, at least. I also don’t feel I can go anywhere else, given the horrible things done by the current regime, and the reception I might receive as a proxy.
Gregg KelloggJan 14, 2025
Katerina MarchánJan 14, 2025

TIL \ exists in ASCII literally so that ALGOL could write its Boolean operators in ASCII

https://en.m.wikipedia.org/wiki/ALGOL

ALGOL - Wikipedia

Gregg KelloggJan 10, 2025
As you suggested, maybe we need a "Semantics Syntax", then. Subjects="any resource", Predicate="IRI or bnode". Objects="any resource", graph name="IRI or bnode".
Gregg KelloggSep 18, 2024
@andyseaborne See new commit to https://github.com/w3c/rdf-turtle/pull/70 to update the spec for rtSubject and rtObject. Fixed other descriptions of curSubject, which was suspect.
Fix for compound triples in reified triples by afs · Pull Request #70 · w3c/rdf-turtle

This resolves #71. Restrict reified triples syntax to only have terms, and not compound triple forms. Preview | Diff

GitHub
Gregg KelloggAug 22, 2024
@andyseaborne Have you had a chance to review https://github.com/w3c/rdf-turtle/pull/62? It has a couple of approvals, but I'd like to hear your opinion if you have time.
Add processor state, term constructor, and triple constructors by gkellogg · Pull Request #62 · w3c/rdf-turtle

... for annotationBlock, tripleTerm, and reifier. Also, extract the annotationBlock production from the annotation production. Preview | Diff

GitHub
Show threadGregg KelloggJun 15, 2024
@[email protected] has a test now :)
Gregg KelloggJun 7, 2024
@[email protected] needs a test :)
Gregg KelloggMay 21, 2024
Show threadW3C DevelopersMay 21, 2024

👏 👏 Congrats to editors Dave Longley, @gkellogg and Dan Yamamoto for the newly published @w3c #WebStandard "#RDF Dataset Canonicalization"

#timetoadopt!

▶️ https://www.w3.org/TR/rdf-canon/

RDF Dataset Canonicalization

RDF [RDF11-CONCEPTS] describes a graph-based data model for making claims about the world and provides the foundation for reasoning upon that graph of information. At times, it becomes necessary to compare the differences between sets of graphs, digitally sign them, or generate short identifiers for graphs via hashing algorithms. This document outlines an algorithm for normalizing RDF datasets such that these operations can be performed.