2015-10-11 第6回OpenGLAM Japan シンポジウムの資料

1. DBpedia Japanese
Fumihiro Kato
ROIS & LODI
2015-10-11
6th OpenGLAM JAPAN Symposium

2. DBpedia
• Project: Research and Community
• Dataset: RDF and Ontology
• Service: Linked Data and SPARQL
2

3. Project

4. DBpedia Project
• since 2007
• current status
• datasets: in 125 languages
• committers: almost in Europe
• Github: https://github.com/dbpedia
• ML: http://sourceforge.net/p/dbpedia/
mailman/
4

5. DBpedia i18n chapters
• subdomain to host Linked data and SPARQL
services for each language
• http://xx.dbpedia.org
• 18 languages
• hosted by volunteers
• original datasets or datasets generated by
a host
5

6. DBpedia Japanese
• One of i18n chapters
• Hub of resources in Japanese
• Promotion of LOD to Japanese communities
• Hosted by LODAC
• http://ja.dbpedia.org
6

7. History
• 9 May 2012 Published the 1st version
• 30 Jun. 2012 Published the 1st IRI version
• [ Occasional updates ]
• 17 Jun. 2013 Added links to Japanese Wikipedia
Ontology and WordNet-ja
• 14 Jan. 2015 Published the latest version
• 8 Jul. 2015 Added links to J-GLOBAL knowledge
• 9 Oct. 2015 Added links to Geonames.jp (NEW!)
7

8. Dataset

9. DIEF: DBpedia Information Extraction Framework
• Software to extract datasets from dumps of
Wikipedia and other Wikimedia projects
• with language-specific extractors and parsers
https://github.com/dbpedia/extraction-framework
9

10. Infobox extraction
Templates
used
in
a
entry
DBpedia
ontology
mappings
Extraction
Mappings
are
used
during
an
extraction
process
10

11. DBpedia全体の処理
ref:
D.
Kontokostas
et
al.
"Internationalization
of
Linked
Data.
The
case
of
the
Greek
DBpedia
edition."
Journal
of
Web
Semantics:
Science,
Services
and
Agents
on
the
World
Wide
Web,
vol.
15,
No.3,
Sep.
2012,
pp.51-­‐61
11

12. dbp-­‐owl:AdministraSveRegion
dbp:サイボーグ009
dbp-­‐owl:
ComicsCreator
dbp:宮城県
dbp:石ノ森章太郎
rdfs:label
rdf:type
rdfs:label
dbp-­‐prop:生年
dbp-­‐owl:notableWork
dbp-­‐owl:award
dbp-­‐owl:birthPlace
rdf:type
サイボーグ009
宮城県 foaf:Person
1938
石ノ森章太郎
rdf:type
rdfs:label
dbp:村井嘉浩
dbp-­‐owl:leaderName
Graph example
dbp:手塚治虫
文化賞
dbp-­‐owl:Cartoon
rdf:type
12

13. http://mappings.dbpedia.org/index.php/Mapping_ja13

14. 14

15. http://mappings.dbpedia.org/server/statistics/ja/15

16. 16

17. {{TemplateMapping
|
mapToClass
=
ComicsCreator
|
mappings
=
{{PropertyMapping
|
templateProperty
=
名前 |
ontologyProperty
=
foaf:name
}}
{{PropertyMapping
|
templateProperty
=
本名 |
ontologyProperty
=
foaf:name
}}
{{PropertyMapping
|
templateProperty
=
生年 |
ontologyProperty
=
birthYear
}}
{{PropertyMapping
|
templateProperty
=
生地 |
ontologyProperty
=
birthPlace
}}
{{PropertyMapping
|
templateProperty
=
没年 |
ontologyProperty
=
deathYear
}}
{{PropertyMapping
|
templateProperty
=
没地 |
ontologyProperty
=
deathPlace
}}
{{PropertyMapping
|
templateProperty
=
国籍 |
ontologyProperty
=
nationality
}}
{{PropertyMapping
|
templateProperty
=
受賞 |
ontologyProperty
=
award
}}
{{PropertyMapping
|
templateProperty
=
公式サイト |
ontologyProperty
=
foaf:homepage
}}
{{PropertyMapping
|
templateProperty
=
画像 |
ontologyProperty
=
foaf:depiction
}}
{{PropertyMapping
|
templateProperty
=
ジャンル |
ontologyProperty
=
genre
}}
{{PropertyMapping
|
templateProperty
=
画像サイズ |
ontologyProperty
=
imageSize
}}
{{PropertyMapping
|
templateProperty
=
職業 |
ontologyProperty
=
occupation
}}
{{PropertyMapping
|
templateProperty
=
代表作 |
ontologyProperty
=
notableWork
}}
}}
17

18. 18

19. 19

20. Activities to grow datasets
• “Mapping party” for DBpedia mappings
• “Wikipedia Town” for Wikipedia entries
20

21. Service

22. http://wiki.dbpedia.org/about/about-dbpedia/architecture
22

23. dbpedia-vad-i18n
• Virtuoso module to publish DBpedia as LD
• forked for DBpedia Japanese
• feedback to the upstream
https://github.com/dbpedia/dbpedia-vad-i18n
https://github.com/fumi/dbpedia-vad-i18n23

24. DBpedia Live version
• Trial services in English and German
• to update immediately when a Wikipedia
entry is updated
• useful for Wikipedia Town for instance
• Issues
• hard to set up
• less triples than the usual version (?)
24

25. Use cases

26. http://linkedopendata.jp/?p=48626

27. 27

28. Japanese SPARQL Book
• Examples use DBpedia and DBpedia Japanese
• Coming soon! You must buy!
28