Hi all,
What you can get from DBpedia is
1) template structure (all properties defined in a template)
I am not sure why this was not included in the 2014 release but you can see
an example in 3.9 [1]
Our parser cannot handle very complex templates but it is a good start.
I'll make sure these are included in the next release but it is also easy
to create a service that extracts them on request
2) mappings wiki
We are in the process of exporting our mappings in RDF using the [R2]RML
vocabulary. We have code that does that for simple mappings but it's not
ready to get merged yet.
Hopefully we'll have this soon and will be quite easy to query and join.
Even without that, we could get a partial functionality by translating &
matching properties from #1
3) mappings wiki (ontology)
links from ontology classes/properties to wikidata, at the moment they are
stored in our wiki but could be stored in Wikidata instead as Daniel
suggested.
Using all these and interlanguage links I think we can create a (decent)
service that can work. I can suggest a DBpedia gsoc project for this if
some people are willing to mentor a student [2].
What we would need from the Wikidata/DBpedia community is
1) more ontology links from DBpedia to Wikidata
2) contributions in the infobox mappings to cover more infoboxes for better
coverage
Best,
Dimitris
[1]
On Tue, Mar 3, 2015 at 10:40 PM, Amir E. Aharoni <
amir.aharoni(a)mail.huji.ac.il> wrote:
Thanks, that's a step forward. Now the question is
how to bring this all
together.
The context that interests me the most is translating an article in
ContentTranslation. Let's go with an architect.[1] I am translating an
article about an architect from English to Dutch, and it has {{Infobox
architect}} at the top. How would ContentTranslation, a MediaWiki extension
installed on the Wikimedia cluster, know that the "name" parameter is
"naam" in Dutch?
Currently, in theory, it would:
1. Find that there's a corresponding infobox in Dutch using the
interlanguage link:
https://nl.wikipedia.org/wiki/Sjabloon:Infobox_architect
2. Go to dbpedia and find the English template:
http://mappings.dbpedia.org/index.php/Mapping_en:Infobox_architect
3. Find that name is foaf:name
4. Go to dbpedia and find the Dutch template:
http://mappings.dbpedia.org/index.php/Mapping_nl:Infobox_architect
5. Find that foaf:name is naam
... And then repeat steps 1 to 5 for each parameter.
Is this something that is possible to query now? (I'm not even talking
about performance.)
Even if it is possible to query it, is it good to be dependent on an
external website for this? Maybe it makes sense to import the data from
dbpedia to Wikidata? It's absolutely not a rhetorical question - maybe it
is OK to use dbpedia.
[1] {{Infobox cricketer}} exists in the Dutch Wikipedia, but doesn' appear
in the Dutch mappings in dbpedia.
--
Amir Elisha Aharoni · אָמִיר אֱלִישָׁע אַהֲרוֹנִי
http://aharoni.wordpress.com
“We're living in pieces,
I want to live in peace.” – T. Moore
2015-03-03 20:39 GMT+02:00 Daniel Kinzler <daniel.kinzler(a)wikimedia.de>de>:
Am 03.03.2015 um 18:48 schrieb Amir E. Aharoni:
Trying again... It's a really important topic
for me.
How do I go about proposing storing information about templates
parameters
mapping to the community? I kinda understand how
Wikidata works, and it
sounds
like something that could be implemented using
the current properties,
but
thoughts about moving this forward would be very
welcome.
Hi Amir!
We had a call today with the dbPedia folks, about exactly this topic!
The dbPedia mapping wiki[1] has this information, at least to some
extent. Let's
say you are looking at {{Cricketer Infobox}} on en. You can look out the
DBPedia
mappings for the template parameters on their mapping page[2]. There you
can see
that the "country" parameter maps to the "country" proeprty in the
dbpedia
ontology[2], which in turn uses owl:equivalentProperty to cross-link
P17[4].
I assume this info is also available in machine readable form somewhere,
but I
don't know where offhand.
Today we discussed that this mapping should also be available in the
opposite
direction: on Wikidata, you can use P1628 ("equivalent property") to
cross-reference the dbPedia ontology. I just added this info to the
country
property.
let me know if this helps :)
-- daniel
[1]
http://mappings.dbpedia.org/index.php/
[2]
http://mappings.dbpedia.org/index.php/Mapping_en:Cricketer_Infobox
[3]
http://mappings.dbpedia.org/index.php/OntologyProperty:Country
[4]
https://www.wikidata.org/wiki/Property:P17
--
Daniel Kinzler
Senior Software Developer
Wikimedia Deutschland
Gesellschaft zur Förderung Freien Wissens e.V.
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