I think Tom is referring to external identifiers such as MusicBrainz
artist ID <https://www.wikidata.org/wiki/Property:P434> etc. and whether
Wikidata items should show all of them or 'preferred' ones only as we
did for VIAF redirects
<https://www.wikidata.org/wiki/Wikidata:Requests_for_permissions/Bot/SamoaBot_38>.
Il 01/10/2015 00:48, Addshore ha scritto:
On 30 September 2015 at 20:58, Tom Morris <tfmorris(a)gmail.com
<mailto:tfmorris@gmail.com>> wrote:
I think I've seen something somewhere saying that the prevailing
sentiment is that obsolete identifiers which are just redirects to
a new identifier should be removed.
I hope not. See my post at
http://addshore.com/2015/04/redirects-on-wikidata/ Redirects should
remain!
Also see
http://addshore.com/2015/09/un-deleting-500000-wikidata-items/
There's also the case of sites like MusicBrainz which keep the
non-canonical IDs without redirecting to the canonical ID, but
will tell you which ID is preferred, e.g. Fritz Kreisler
<https://www.wikidata.org/wiki/Q78517#revision=254297158>
https://musicbrainz.org/artist/590fcad4-2ba4-43bc-a22f-a4bb9b496fe8
https://musicbrainz.org/artist/627ac6c2-ee5c-4120-8af3-ab00345447f5
https://musicbrainz.org/artist/bf6d6ce1-ce88-40e6-9424-11d11d2e54ea
where all the tabs for the second two pages actually point to the
first, canonical entry.
Is there an established policy for either the redirect or
non-redirect case?
See
https://www.wikidata.org/wiki/Wikidata:Deletion_policy#Deletion_of_items_.2…
which says "Items should not be deleted when - The item redirects to
another item"
Also see
https://www.wikidata.org/wiki/Help:Merge#Create_redirect
which says redirects should be created when items are merged
I'd argue that even the obsolete identifiers are useful for
inbound resolution and reconciliation. Aggressively pruning them
just makes more work for people, because they must resolve the
identifier that they have in hand to its canonical form (probably
by hitting the issuing authority) before using it for Wikidata
lookups.
What do others think?
Tom
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Addshore
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