Hi Hugh,
It seems that
http://sameas.org/store/kelle/?uri=http://stitch.cs.vu.nl/vocabularies/rameau/ark:/12148/cb14521343b
already has the owl:sameAs to http://data.bnf.fr/ark:/12148/cb14521343b
so all is already taken care of! Great job :-)
That being said I'm curious about your experience on the matter: did you have once a case
where a linked dataset was "moved", and the publisher and/or yourself asserted
RDF statements to handle the transition? Either with owl:sameAs, dcterms:replaces or
anything else...
Best,
Antoine
Hi Antoine,
Apart from all the internal stuff, you (or rather your users) can of course use
http://sameas.org (in fact, this is part of its raison d'être, to use an
English phrase). E.g.
http://sameas.org/?uri=http://stitch.cs.vu.nl/vocabularies/rameau/ark:/12148/cb14521343b
is the main one, but there is a specialist library one at
http://sameas.org/store/kelle e.g.
http://sameas.org/store/kelle/?uri=http://stitch.cs.vu.nl/vocabularies/rameau/ark:/12148/cb14521343b
If you wanted your own store to only have the mappings you care about and
carrying your own trust to your users, then please email me and I will create
it.
Best
Hugh
On 20 Apr 2012, at 14:11, Antoine Isaac wrote:
Thanks a lot for your feedback! That's really precious.
@Richard, Jon: yes, we'll try to have the 301 working for a while. But not
forever, so it would be good if something could function as a more stable
solution. Though I'm not sure the requirement is too strong, in our case. It's
not as if we were dbPedia ;-)
@Kevin: yes, the sameAs statement is served on the data.bnf.fr side.
@Bernard, Ed, on using dcterms:replaces instead of owl:sameAs between the
stitch and bnf URIs for our SKOS concepts:
For once, I have quite a good feeling about using owl:sameAs. It seems to
really match the case at hand: the URIs are really about the same resource. And
with the new situation, all the 'official' statements on the stitch URIs comes
from the data.bnf.fr site. And there's just one such statement: the sameAs one!
So that limits the risk of dangerous inferences that people are usually afraid
of, I'd say.
We could still use dcterms:replaces *next* to owl:sameAs. But there's a
conflict: one resource would replace itself...
In fact it seems that the dcterms:replaces option considers two resources (one
that replace the other). Which in turns hints that you're considering that the
URIs denote the URI themselves (or a 'concept-with-a-URI'), and not the
resource (concept). I'm quite reluctant to this...
Best,
Antoine
Dear all,
We have a question on an what to do when a linked data set is "moved" from one
namespace to the other. We searched for recipes to apply, but did not really find
anything 'official' around...
The VU university of Amsterdam has published a Linked Data SKOS representation
of RAMEAU [1] as a prototype, several years ago. For example we have
http://stitch.cs.vu.nl/vocabularies/rameau/ark:/12148/cb14521343b
Recently, BnF implemented its own production service for RAMEAU. The previous
concept is at:
http://data.bnf.fr/ark:/12148/cb14521343b
(see RDF at http://data.bnf.fr/14521343/web_semantique/rdf.xml)
The production services makes the prototype obsolete. Our issue is how to properly
"transition" from one to the other. Several services are using the URIs of the
prototype. For example at the Library of Congress:
http://id.loc.gov/authorities/subjects/sh2002000569
We can ask for the people we know to change their links. But identifying the
users of URIs seems too manual, error-prone a process. And of course in general
we do not want links to be broken.
Currently we have done the following:
- a 301 "moved permanently" redirection from the stitch.cs.vu.nl/rameau
prototype to data.bnf.fr.
- an owl:sameAs statement between the prototype URIs and the production ones,
so that a client searching for data on the old URI gets data that enables it to
make the connection with the original resource (URI) it was seeking data about.
Does that seem ok? What should we do, otherwise?
Thanks for any feedback you could have,
Antoine Isaac (VU Amsterdam side)
Romain Wenz (BnF side)
[1] RAMEAU is a vocabulary (thesaurus) used by the National Library of France
(BnF) for describing books.
