*
Dear DBpedians,
we are the team of Airpedia project [1], which aims to enhance the
classes/properties coverage of DBpedia over Wikipedia using machine
learning techniques.
We read about the "mapping sprint", therefore we want to bring to your
attention the resource we are producing concerning DBpedia. We think
that it can help the community to speed up the mapping process.
Wrong mappings
The basic idea of our approach is the use of DBpedia resource as
training data. For this reason, we have to be sure that the mappings are
correct. We then implement a cross-language validation to discover wrong
mappings. We found out some obvious errors, that we think may be correct
before the release of DBpedia 3.9. See attachment for the list of these
mappings.
Automatic class mappings
In a paper accepted to I-KNOW conference [2], we present a resource
obtained by automatically mapping Wikipedia templates in 25 languages.
Our approach can replicate the human mappings with high reliability, and
producing an additional set of mappings not included in the original
DBpedia. The resource can be downloaded from the resource section [3] of
the Airpedia website and consists of CSV files with two columns:
Wikipedia infobox name and DBpedia class.
Automatic properties mappings
In a second paper submitted to ISWC conference [4], we focus on the
problem of automatically mapping infobox attributes to properties into
the DBpedia ontology for extending the coverage of the existing
localised versions or building from scratch versions for languages not
covered in the current version. We report results comparable to the ones
obtained by a human annotator in term of precision, but our approach
leads to a significant improvement in recall and speed. Specifically, we
mapped 45,978 Wikipedia infobox attributes to DBpedia properties in 14
different languagesfor which mappings were not available yet. Again, it
can be downloaded from the resource section [3] of the Airpedia website
and consists of CSV files with two columns: Wikipedia infobox attribute
name and DBpedia property.
Enhanced coverage of DBpedia over classes in 31 languages
Following the work already presented at ESWC conference [5], we enhance
the coverage of DBpedia over pages devoid of infobox. The resource
contains 10M computed entity types. It is available in RDF format and
can be downloaded in the resource section [3] of our website.
Integration in Italian DBpedia
The Italian DBpedia team has been the firts adopter of our dataset. Next
week a new version of the SPARQL endpoint containing our statements will
be released. Stay tuned!
Cheers!
Alessio
[1] http://www.airpedia.org
[2] http://i-know.tugraz.at/
[3] http://www.airpedia.org/download/
[4] http://iswc2013.semanticweb.org/
[5] http://2013.eswc-conferences.org/
*
cs:Kosmonaut > Airline
http://mappings.dbpedia.org/index.php/Mapping_cs:Infobox_Kosmonaut
(should be Astronaut)
cs:Infobox_Kosmická_loď > Spacecraft
http://mappings.dbpedia.org/index.php/Mapping_cs:Infobox_Kosmick%C3%A1_lo%C4%8F
(should be SpaceMission)
cs:Infobox_Cyklistický_závod > CyclingLeague
http://mappings.dbpedia.org/index.php/Mapping_cs:Infobox_Cyklistick%C3%BD_z%C3%A1vod
(should be CyclingCompetition)
es:Ficha_de_taxón > Tax
http://mappings.dbpedia.org/index.php/Mapping_es:Ficha_de_tax%C3%B3n
(should be Species)
tr:Türkiye_il_bilgi_kutusu > Unknown
http://mappings.dbpedia.org/index.php/Mapping_tr:T%C3%BCrkiye_il_bilgi_kutusu
(should be AdministrativeRegion)
ru:Книга > Book
http://mappings.dbpedia.org/index.php/Mapping_ru:%D0%9A%D0%BD%D0%B8%D0%B3%D0%B0
(should be deleted, it refers to citations)
sl:Infopolje_Glasbeni_ustvarjalec > Musical
http://mappings.dbpedia.org/index.php/Mapping_sl:Infopolje_Glasbeni_ustvarjalec
(should be MusicalArtist)
hu:Tenisztorna_infobox > TennisLeague
http://mappings.dbpedia.org/index.php/Mapping_hu:Tenisztorna_infobox
(should be TennisTournament)
hu:Iskola_infobox > School
http://mappings.dbpedia.org/index.php/Mapping_hu:Iskola_infobox
(should be EducationalInstitution, as it also contains universities)
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