Dear DBpedians,
To keep up with our two releases per year schedule, we are preparing the
next release, due in March/April of next year. Therefore we are announcing
our custom "Mapping Sprint" to encourage mapping activity to add new and
improve/validate existing mappings until the end of this month.
As a lot of new languages and infobox-to-ontology mappings for various
languages have already been entered by the mapping editors community into
the DBpedia Mapping Wiki (http://mappings.dbpedia.org/
<http://mappings.dbpedia.org/index.php/Main_Page>) since the last DBpedia
release, we hope to be able to provide clean data for even more infoboxes
in even more languages with the new release.
Tasks:
1. Could you please check whether the mappings that you have entered into
the wiki over the last year still work correctly?
2. If you still want to refine and extend mappings and/or the ontology, now
would be the perfect time to do so.
3. In order to help increasing the infobox coverage of the new release, it
would also be great if you map additional templates or additional
properties of existing templates to the ontology.
Also note that now we have separate issue trackers for the mappings and the
ontology where we discuss design issues
https://github.com/dbpedia/ontology-tracker/issues
https://github.com/dbpedia/mappings-tracker/issues
For helping you see which widely used templates still require additional
property mappings, we have updated the Mapping Wiki statistics for all
languages:
http://mappings.dbpedia.org/server/statistics/
Further functionality for testing and exploring the current mappings is
available at:
http://mappings.dbpedia.org/server/
for example mapping syntax errors
http://mappings.dbpedia.org/server/mappings/fr/validate/*
*New additions since the last sprint*
Redirects that need to be fixed (moved / merged)
http://mappings.dbpedia.org/server/mappings/en/redirects/
Wrong mappings (according to our ontology).
http://mappings.dbpedia.org/validation/
Wikidata mappings (create owl:equivalent classes & properties to Wikidata)
http://mappings.dbpedia.org/server/ontology/wikidata/missing/
*Examples*
For the English Wikipedia edition, you can see for instance at
http://mappings.dbpedia.org/server/statistics/en/?show=100
that there is still room for improving the mappings.
The statistics for German, Spanish and French are found below and also
still show lots of gaps for these important languages:
http://mappings.dbpedia.org/server/statistics/de/?show=100
http://mappings.dbpedia.org/server/statistics/es/?show=100
http://mappings.dbpedia.org/server/statistics/fr/?show=100
You also have a possibility to see the list of errors for the current
mappings, for instance for French you can validate either a specific
mapping or all mappings at once
http://mappings.dbpedia.org/server/mappings/fr/
http://mappings.dbpedia.org/server/mappings/fr/validate/* - error list for
all French mappings
If you want to to refine and extend the ontology, note that you can add
links between the DBpedia ontology and other schemata/ontologies, e.g. to
schema.org or Wikidata as in the example below
http://mappings.dbpedia.org/index.php/OntologyProperty:Author
Wikipedia infobox templates evolve over time and some of our mappings need
to catch up as well. Some cases are simple where a simple move would do
(double check the new mapToClass) while others require merging (we have a
mapping both for the redirect and the target)
http://mappings.dbpedia.org/server/mappings/en/redirects/
Invalid mappings report the use of properties in a mapping that does not
comply with the property domain definition. In these case we could a)
change the property and find a more appropriate one, b) broaden the domain
of the property or c) adjust the class hierarchy (BE Carefull with this
one!!!)
http://mappings.dbpedia.org/validation/
*Deadline*
We will use all mappings that are entered into the Mapping Wiki until *Nov
30th* for the upcoming DBpedia release.
It would thus be great if as many editors as possible participate in the
mapping sprint and we as a community try to increase the mapping coverage
as far as possible until this date.
Lots of thanks advance to all mapping editors who participate. Let's all
try to make the next DBpedia release even better!
Cheers,
Markus Freudenberg, Dimitris Kontokostas, Sebastian Hellmann
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