Hey everyone,
Since some time now ranks are available. They are meant as a way to
help manage the vast amount of information in Wikidata and make sense
of them. One important point is to be able to "hide" old and wrong
information using the normal and deprecated ranks. This allows us to
for example only show the current leader of a country when asked for
it instead of all the ones that have had this title at some point in
the past. We want to move forward with making use of this now. This
means a few things in particular:
* The property parser function {{#property:P123}} will be changed to
only return preferred values if they are available. If none are
available then the normal ones will be returned.
* Lua will be adapted to also by default only return preferred values
if available and otherwise normal values.
* Simple queries (like "give me the item with ISBN 12345678) will only
return items with the value marked as preferred if available and
otherwise normal values.
* Complex queries will only return items with the values marked as
preferred (and if not available normal) initially. Later all can be
searched for explicitly as well but by default still only items with
the values marked as preferred (and if not available normal) will be
returned.
This in essence means that people will need to start marking values as
preferred and deprecated where appropriate. This change will happen
within the next weeks. I don't yet know exactly when the code change
will be ready.
Onwards to a Wikidata that can meaningfully work with historical information \o/
Cheers
Lydia
--
Lydia Pintscher - http://about.me/lydia.pintscher
Product Manager for Wikidata
Wikimedia Deutschland e.V.
Tempelhofer Ufer 23-24
10963 Berlin
www.wikimedia.de
Wikimedia Deutschland - Gesellschaft zur Förderung Freien Wissens e. V.
Eingetragen im Vereinsregister des Amtsgerichts Berlin-Charlottenburg
unter der Nummer 23855 Nz. Als gemeinnützig anerkannt durch das
Finanzamt für Körperschaften I Berlin, Steuernummer 27/681/51985.
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