[NLP2RDF] [Extern] Ontologies of Linguistic Annotation (OLiA): New Home

[Christian Chiarcos]

Dear all,

TLDR: No action needed if your applications use the official Purl URIs
(e.g., http://purl.org/olia/olia.owl#)

In a number of data sets and applications in the LLOD community, the
Ontologies of Linguistic Annotation (OLiA) are being used to provide stable
identifiers for various kinds of annotation.

In particular, they provide
(a) an ontology of terminology relevant for the annotation of morphosyntax,
syntax, morphology, information structure, co-reference and discourse (OLiA
Reference Model), and
(b) a large number of annotation schemes and tagsets as machine-readable
Annotation Models, linked with the reference model.

This is to notify contributors to and users of OLiA that we are currently
in migration from servers of GU Frankfurt to publication via GitHub.

This means:
- The official Purl URL (e.g., http://purl.org/olia/olia.owl) will continue
to work, no action needed.
- These links now point to GitHub instead of servers at GU Frankfurt.
- Inofficial direct links to http://acoli.cs.uni-frankfurt.de/... should be
replaced by Purl links
- Some applications still use links to
http://nachhalt.sfb632.uni-potsdam.de/owl/olia.owl#. These may continue to
operate for the foreseeable future, but note that these have not been
updated since 2012 and should be immediately replaced by Purl links.
- The former documentation of OLiA and the OLiA discourse extensions
hosted by http://acoli.cs.uni-frankfurt.de/ are being replaced with new
documentation published via https://acoli-repo.github.io/olia/
- The HTML editions of OLiA Annotation Models and the OLiA Reference Model
formerly hosted under http://acoli.cs.uni-frankfurt.de/... can now be found
in the GitHub pages: https://acoli-repo.github.io/olia/html/
- The official publication channel for OLiA is and continues to be the
GitHub repository under https://github.com/acoli-repo/olia.
- All our data is open source. Feel free to fork or contribute ;)

Note that the documentation is still in a refit process, but things are
continuously improving. If you encounter any anomalies or have any
requests, please create a GitHub issue for that (
https://github.com/acoli-repo/olia/issues), or reach out to me in person or
via the ACoLi Google Group (https://groups.google.com/g/acoli) with the
subject "OLiA: ...".

Also note that the management of Purl redirects is a laborsome and
unreliable matter. In particular, DELETE requests are very often just not
processed. We are monitoring the situation and manually revise where
necessary, but it is possible that some updates of OLiA redirects have not
been successfully deployed yet. If you encounter any of these, please drop
us a line.

Thanks a lot, and best regards,
Christian
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