Thank you for raising the point.
Worldcat pools and federates authorities and identities from many libraries. LoC only does so for the United States. Other national repositories such as the BL and the Bnf also make their way into Worldcat or VIAF. In turn the VIAF authorities should eventually show up in a more carefully curated form as ISNI. This flow involves human intervention so it is not instant. It can take years.
Sent: Tuesday, March 06, 2018 at 1:48 PM
From: "Ettore RIZZA" <ettoreri...@gmail.com>
To: "Discussion list for the Wikidata project" <email@example.com>
Subject: Re: [Wikidata] About OCLC and DBpedia Links
First of all, thank you all for your answers.
@Magnus and Thad: it's a bit what I suspected. Since the URL to WorldCat can be rebuilt from the Library of congress authority ID, I guess someone thought it would be a duplicate.
But 1) I'm not sure that there is a 1 to 1 mapping between all Worldcat Identities and the Library of Congress 2) It would be rather strange that a Library of Congress ID would also serve as an ID for a "competitor" (ie OCLC, which maintains Worldcat and VIAF) 3) One would then wonder why Wikipedia provides both links to the Library of Congress Authority ID and Worldcat Identities.
With respect for the fact that Wikidata already contains links to VIAF and that VIAF contains links to Worldcat Identities, this transitivity reasoning could apply to many other Authority IDs, I think.
@Sebastian: Il would be great! I'll follow this project closely, just as I'm already following your papers
. And it is precisely because I know that there is a desire for "rapprochement" on both sides that I asked why there is absolutely nothing in Wikidata that links to DBpedia (or Yago), whereas DBpedia contains a lot of owl: sameAs to Wikidata. All this must have been discussed somewhere I suppose. Still, I do not even find a property proposal for "DBpedia link".
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