Thanks for the very well written report.
>From what I can tell, this is not a bug, but a feature request. At the
moment, the DEF does not render templates before extracting, so if the
category is added by a template, it will not get extracted.
Cheers,
Pablo
On Feb 9, 2012 10:41 PM, "Andrew Filer" <[email protected]> wrote:
> I notice that there are groups of categories like Bridges_in_California
> (and all the other states) that have no skos:broader category, despite this
> existing in Wikipedia.
>
> For example, note that
> http://dbpedia.org/page/Category:Bridges_in_California shows no broader
> categories, while
> http://en.wikipedia.org/wiki/Category:Bridges_in_California does belong
> to multiple categories (and it's not an issue of dbpedia's extract just not
> having caught up yet, as you can see from
> http://en.wikipedia.org/w/index.php?title=Category:Bridges_in_California&oldid=12067574,
> there were categories even in 2004).
>
> Other categories, like http://dbpedia.org/page/Category:Bridges_in_England,
> seem fine, and have both "skos:broader" and "is skos:broader of" entries.
>
> Looking at the source of the respective wikipedia pages, it appears this
> may be because Category:Bridges_in_California gets belongs to categories
> only via templates ("{{US bridges by state|State=California}}")
> while Category:Bridges_in_England just has "[[Category:Bridges in the
> United Kingdom| England]]".
>
> I find 12,599 categories that have no broader categories. If you look at
> the list ( http://pastebin.com/2tQr16Li ) you can see entries of the
> format $YEAR_in_$SUBJECT, $TOPIC_in_$COUNTRY, etc, so I'm guessing that
> many of these suffer from the same issue as Bridges_in_California.
>
> So, is this a bug (maybe templates are just not parsed for category
> membership?) or is there some fundamental distinction between these
> different types of entries that I'm missing?
>
> Andrew Filer
>
>
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