[NLP2RDF] NIF ontology: broken links

[Antonin Delpeuch (lists)]

Hi Sebastian,

Great, thanks! Beyond the description of the ontology, it would be quite
useful to have a more explanatory description of NIF as a file format
for NERD datasets. The ontology only loosely describes the format: for
instance, it is not clear to me which statements are required, which
ones are optional, which ones can have multiple values, and so on.
Moreover, the NIF format also uses predicates from other namespaces
which are not described there, so that makes it even harder to
understand, I think.

Having such a document (with examples) would really encourage people
from outside the semantic web community (such as NLP researchers not
familiar with these terminologies) to embrace the format, I think.

Best,
Antonin

On 2/5/19 2:44 PM, hellmann at informatik.uni-leipzig.de wrote:
> Hi Antonin,
> 
> The turtle file is here
> http://persistence.uni-leipzig.org/nlp2rdf/ontologies/nif-core/nif-core.ttl
> 
> There is a broken internal redirect pending to be fixed.
> 
> 2.1 is here https://github.com/NLP2RDF/ontologies
> 
> 
> Over the years it became clear that publishing ontologies like this is
> very unpractical. We are working on https://databus.dbpedia.org .
> 
> When it is ready, I will migrate the ontology there. It like maven
> central for data, so you can build your app on the right version...
> 
> Sebastian
> 
> 
> 
> On February 5, 2019 2:32:29 PM GMT+01:00, "Antonin Delpeuch (lists)"
> <lists at antonin.delpeuch.eu> wrote:
> 
>     Hi,
> 
>     I was looking for the definition of the NIF format. It seems that it
>     used to be available at:
>     http://persistence.uni-leipzig.org/nlp2rdf/ontologies/nif-core#
> 
>     This link currently gives an HTTP 403 error for me. I found it in the
>     "Integrating NLP using Linked Data paper":
>     http://svn.aksw.org/papers/2013/ISWC_NIF/public.pdf
>     Given that this link appears in a published paper, I think it is very
>     important that there is an effort to maintain it (otherwise the
>     "persistence" in the domain name is not really deserved).
> 
>     The same link is also used at:
>     http://persistence.uni-leipzig.org/nlp2rdf/
> 
>     Thanks to Wikidata (https://www.wikidata.org/wiki/Q31794099) I was able
>     to find
>     http://persistence.uni-leipzig.org/nlp2rdf/ontologies/nif-core/nif-core.html,
>     which seems to be about NIF 2.0, what about NIF 2.1?
> 
>     Best regards,
>     Antonin Delpeuch
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