Hi everyone,
I've been playing around with the structure of category graph for quite
some time for
https://commons.wikimedia.org/wiki/User:CategorizationBot
. This bot takes an uncategorized image, looks where it is used and
tries to find relevant categories at Commons. It applies some filters
and one of them is the filter against over categorization
(
https://commons.wikimedia.org/wiki/Commons:OVERCAT). For this I create
a simple child->parent table that used to live on the Toolserver, but
now appears to have vanished.
I would love to have some sort of dump or (even better) a central
service I can query. It should contain for all Wikimedia projects:
* Page links (page A links to page B)
* Category links (page A is in category C)
* Image links (page A uses image I)
* Interlanguage links (page A in language en links to page A' in
language nl)
* Interproject links (page A in the English Wikipedia links to page A'
on Wikimedia Commons)
And to make it really complete:
* Wikidata claims (item A has a claim pointing to item B)
Maarten