On 14/06/18 13:02, Alexandra Kokkinaki wrote:
Thanks all for your prompt responses,
TriX does exactly what I would like to do, but Martynas suggestion is what
I ideally need.
I will describe what we have to do, and any suggestions or ideas are more
than welcome:
We currently host 250 vocabularies with more than 60.000 terms used by many
users all over the world. (so we have to cater for backwards compatibility,
as many software apps are based on our vocabularies).
The vocabularies are exposed as Linked Data, via sparql endpoint (Jena
Fuseki) and REST interface (RDF/XML sadly no other serialization) using
mostly SKOS.
Users asked more information about the provenance of term mappings
(triples) and this is where the named graph comes in.
How do I display the provenance information in RDF/XML?
One thought - publish the provenance in a separate graph to the
vocabularies. The provenance graph can refer to the other graphs.
If it is the provenance of specific triples within graphs may come down
to using reification. Quads/named graphs can be used (the whole
vocabulary being the union of the named graphs and the named graphs
being the fragments from different sources.
Andy
Many thanks,
Alexandra
On Wed, Jun 13, 2018 at 10:37 PM, Andy Seaborne <[email protected]> wrote:
Alexandra,
I was wondering what use such a format would have for you - if it is a
non-standard format, no-one else can read it. There are non-XML formats
that capture named graphs that are standard - JSON-LD, TriG, and N-Quads.
Andy
On 13/06/18 13:38, Alexandra Kokkinaki wrote:
Dear all,
I also want to use named graphs to capture provenance information on
triples but in RDF/XML serialization.
Iam replying Martynas email, as he first asked for that, wondering if
anything happened since then, and I haven't found it?
Many thanks
Alexandra
On Thu, Jun 9, 2016 at 4:58 PM, Martynas Jusevičius <
[email protected]>
wrote:
I found the "abandoned" discussion on RDF 1.1 WG wiki:
https://www.w3.org/2011/rdf-wg/wiki/TF-RDF-XML#Change_8:_
named_graph_support_in_RDF-XML
On Thu, Jun 9, 2016 at 5:26 PM, Martynas Jusevičius
<[email protected]> wrote:
It seems that someone has thought about this before:
https://www.w3.org/Submission/rdfsource/
TriX is just not a natural structure for XSLT transformations.
On Thu, Jun 9, 2016 at 4:34 PM, Andy Seaborne <[email protected]> wrote:
On 09/06/16 14:47, Martynas Jusevičius wrote:
Good points. Yes TriG-like structure makes more sense -- but then it
is clearly non-standard.
That's a good thing - no risk of wrong data or missing data.
Using an attribute, rdfx:graph - won't it be a property if it is not
understood as additional syntax attribute?
Isn't this a gap in RDF standardization -- an XML format for quads?
IIRC When it came down to it, no one was interested in spending time on
it.
There are (probably) some notes in the RDF 1.1 WG wiki.
TriX is a de facto standard.
Andy
On Thu, Jun 9, 2016 at 1:51 PM, Andy Seaborne <[email protected]>
wrote:
On 08/06/16 15:22, Martynas Jusevičius wrote:
Hey,
would it be possible to adopt RDF/XML writer for quads (Dataset)?
What
would that take?
I know it would involve a non-standard syntax, but if we used
namespaced attributes, XML-compatible tools shouldn't break.
I am thinking it should be possible to add an attribute (e.g.
rdfx:graph) with graph name on each of the property elements,
something like this:
<rdf:Description
rdf:about="https://www.w3.org/People/Berners-Lee/card#i";>
<foaf:givenName
rdfx:graph="https://www.w3.org/People/Berners-Lee/card";>
Tim</foaf:givenName>
<foaf:familyName
rdfx:graph=http://data.semanticweb.org/person/tim-berners-lee/rdf
"">Berners-Lee</foaf:familyName>
</rdf:Description>
And if a triple is in 2 graphs? The default graph?
What do you think? Would someone else be interested in such
serialization? I know there is TriX, but it is not convenient for
XSLT
transformation.
Martynas
atomgraph.com
An alternative is more TriG like :
<rdfx:Graph rdfx:name="...">
.... RDF/XML here ...
</rdfx:Graph>
