Presentation about my project (https://en.wikipedia.org/wiki/nl:Wikipedia:Wikiproject/Verzetskranten) describing and interlinking all 1300 Dutch resistance newspapers from WW2 on Wikipedia using DBpedia. Given during the 6th DBpedia International Community Meeting on 12-2-2016 in The Hague (http://wiki.dbpedia.org/meetings/TheHague2016)

1. Dutch WW2 underground newspapers
on Wikipedia
6th International DBpedia Community Meeting, 12-02-2016, The Hague
Olaf Janssen, Koninklijke Bibliotheek
olaf.janssen@kb.nl - @ookgezellig - slideshare.net/OlafJanssenNL CC-BY-SA

2. http://www.4en5meiamsterdam.nl/attachment/47454

3. During WW2
± 1.300 Dutch underground
newspapers have been issued
In every shape & form…
http://www.4en5meiamsterdam.nl/attachment/47454

4. http://resolver.kb.nl/resolve?urn=ddd:010436323 http://resolver.kb.nl/resolve?urn=ddd:010442948
http://resolver.kb.nl/resolve?urn=ddd:010447825 http://resolver.kb.nl/resolve?urn=ddd:010450508
From well-known
big titles
(o.a. Parool, Vrij Nederland, Trouw, de Waarheid)

5. To very small, home-made, pamphlet-like
issues

6. After the war many titles have
1) been (physically) preserved at the
NIOD …
https://commons.wikimedia.org/wiki/File:Verzetskrant_in_archiefdozen_bij_het_NIOD.jpg – CC-BY-SA - OlafJanssen
The national Institute for War, Holocaust and
Genocide Studies in Amsterdam

7. http://opac-gonext.oclc.org:8180/DB=8/XMLPRS=Y/PPN?PPN=107123223
.. were
2) described in formal library catalogues
Bibliographic
metadata

8. .. were
3) digitized in Delpher …
The Dutch national aggregator for historic
full-text newspapers, books and magzines
http://resolver.kb.nl/resolve?urn=ddd:010424553:mpeg21:p001
• Scans
• Full-text OCR

9. .. and were
4) contextualized & interlinked
1 by 1 in a book
Context

10. .. and were
4) contextualized & interlinked
1 by 1 in a book
Relation
Newspaper  Placename
 semantics, linked data

11. .. and were
4) contextualized & interlinked
1 by 1 in a book
Relation
Newspaper  Persons
 semantics, linked data

12. .. and were
4) contextualized & interlinked
1 by 1 in a book
Relation
Newspaper  Other newspapers
 semantics, linked data

13. This book has been OCRed into PDF
(CC-BY-SA)
http://www.niod.nl/nl/de-ondergrondse-pers-1940-1945 (PDF)

14. This book has been OCRed into PDF
(CC-BY-SA)
http://www.niod.nl/nl/de-ondergrondse-pers-1940-1945 (PDF)
Available online (PDF, flat file)
Open license (CC-BY-SA)
Converted into structured, linked data
Linked to KB-catalogue (metadata) and
Delpher (full-text)
Linked to other sources
(DBpedia, VIAF, Gemeentegeschiedenis.nl, Nationaal Archief)

15. This book has been OCRed into PDF
(CC-BY-SA)
http://www.niod.nl/nl/de-ondergrondse-pers-1940-1945 (PDF)
Available online (PDF, flat file)
Open license (CC-BY-SA)
Convert PDF into structured, linked data
Link to KB-catalogue (metadata) and
Delpher (full-text)
Link people and places to external sources
(VIAF, Gemeentegeschiedenis.nl, Nationaal Archief,
Biografisch Portaal)

16. This book has been OCRed into PDF
(CC-BY-SA)
http://www.niod.nl/nl/de-ondergrondse-pers-1940-1945 (PDF)
Available online (PDF, flat file)
Open license (CC-BY-SA)
Convert PDF into structured, linked data
Link titles to KB-catalogue (metadata) and
Delpher (full-text)
Link people and places to external sources
(VIAF, Gemeentegeschiedenis.nl, Nationaal Archief,
Biografisch Portaal)

17. This book has been OCRed into PDF
(CC-BY-SA)
http://www.niod.nl/nl/de-ondergrondse-pers-1940-1945 (PDF)
Available online (PDF, flat file)
Open license (CC-BY-SA)
Convert PDF into structured, linked data
Link titles to KB-catalogue (metadata) and
Delpher (full-text)
Link titles, people and places to external
sources (VIAF, Gemeentegeschiedenis.nl,
Nationaal Archief, Biografisch Portaal)

18. So:
a lot of information is available about these
WW2 underground newspapers
(and the related persons & places) …
... but the chunks of data are (largely)
unconnected!

19. http://2.bp.blogspot.com/_BWzuYwiS6-I/TMgeRsFd3mI/AAAAAAAAElw/3cvgbZSPWcs/s1600/doctor+macro+judy+scared.jpg
... making
discovery, understanding & research
for many people harder than necessary.

20. ... making
discovery, understanding & research
for many people harder than necessary.

21. https://nl.wikipedia.org/wiki/Categorie:Illegale_pers_in_de_Tweede_Wereldoorlog
Today, only 14 of these 1.300
newspapers are described on WP:NL

22. The Wikiproject Verzetskranten
will change this!
Systematically and uniformly describe & interlink all
1.300 Dutch underground newspapers from WW2
on Wikipedia
tinyurl.com/verzetskranten
Automatically makes data
available for open reuse projects
Wikidata -- DBpedia -- Dataviz

23. From 14  1.300 titles

25. Global approach
1. Make central LOD-database
2. Build article template
3. Generate WP-article stubs -- using 1. and 2.
4. Involve WP-community to expand stubs into full
WP-articles
5. Make dataset available for open reuse
Wikidata -- DBpedia -- Dataviz -- et al.
First time data about undergound
newspapers is systematically
collected and linked online!

26. LOD-database for underground newspapers
Convert PDF into structured, linked data
 RDF-triplestore (Virtuoso, SPARQL, Bibframe)
Link titles to KB-catalogue (metadata) & Delpher
(full-text)  Using PPNs (unique IDs for publications in NL)
 Dbpedia  VIAF
 Gemeentegeschiedenis.nl
 Nationaal Archief
 Biografisch Portaal

27. LOD-database for underground newspapers
Convert PDF into structured, linked data
 RDF-triplestore (Virtuoso, SPARQL, Bibframe)
Link titles to KB-catalogue (metadata) & Delpher
(full-text)  Using PPNs (unique IDs for publications in NL)
 Dbpedia  VIAF
 Gemeentegeschiedenis.nl
 Nationaal Archief
 Biografisch Portaal

28. LOD-database for underground newspapers
Convert PDF into structured, linked data
 RDF-triplestore (Virtuoso, SPARQL, Bibframe)
Link titles to KB-catalogue (metadata) & Delpher
(full-text)  Using PPNs (unique IDs for publications in NL)
 Dbpedia  VIAF
 Gemeentegeschiedenis.nl
 Nationaal Archief
 Biografisch Portaal

29. LOD-database for underground newspapers
Convert PDF into structured, linked data
 RDF-triplestore (Virtuoso, SPARQL, Bibframe)
Link titles to KB-catalogue (metadata) & Delpher
(full-text)  Using PPNs (unique IDs for publications in NL)
 Dbpedia  VIAF
 Gemeentegeschiedenis.nl
 Nationaal Archief
 Biografisch Portaal

30. LOD-database for underground newspapers
Convert PDF into structured, linked data
 RDF-triplestore (Virtuoso, SPARQL, Bibframe)
Link titles to KB-catalogue (metadata) & Delpher
(full-text)  Using PPNs (unique IDs for publications in NL)
Link titles, people and places to external sources
 Dbpedia  VIAF
 Gemeentegeschiedenis.nl
 Nationaal Archief
 Biografisch Portaal

31. LOD-database for underground newspapers
Convert PDF into structured, linked data
 RDF-triplestore (Virtuoso, SPARQL, Bibframe)
Link titles to KB-catalogue (metadata) & Delpher
(full-text)  Using PPNs (unique IDs for publications in NL)
Link titles, people and places to external sources
 DBpedia  VIAF
 Gemeentegeschiedenis.nl
 Nationaal Archief
 Biografisch Portaal

32. LOD-database for underground newspapers
Convert PDF into structured, linked data
 RDF-triplestore (Virtuoso, SPARQL, Bibframe)
Link titles to KB-catalogue (metadata) & Delpher
(full-text)  Using PPNs (unique IDs for publications in NL)
Link titles, people and places to external sources
 DBpedia  Wikipedia
 VIAF
 Nationaal Archief
 Biografisch Portaal

33. http://www.4en5meiamsterdam.nl/attachment/47454

34. So we have a LOD-database with data about
1.300 underground newspapers
Using an article template we can generate
1.300 uniform and interlinked WP-stubs
https://c1.staticflickr.com/9/8281/7699231918_11a7356c38_b.jpg

35. LOD-db + article template = article stub

36. https://nl.wikipedia.org/wiki/De_Geus_onder_studenten_(verzetsblad)

37. Grey =
• From database
• Predefined fixed strings

38. All that WP-writers
need to add manually
to create a full article

39. Current status

40. Global approach
1. Make central LOD-database
2. Build article template
3. Generate WP-article stubs
4. Involve WP-community to expand stubs into full
WP-articles
Current status

41. Global approach
1. Make central LOD-database
2. Build article template
3. Generate WP-article stubs
4. Involve WP-community to expand stubs into full
WP-articles
Current status

42. Global approach
1. Make central LOD-database
2. Build article template
3. Generate WP-article stubs
4. Involve WP-community to expand stubs into full
WP-articles
Current status

43. Global approach
1. Make central LOD-database
2. Build article template
3. Generate WP-article stubs
4. Involve WP-community to expand stubs into full
WP-articles
Current status
This month
March onwards

44. http://upload.wikimedia.org/wikipedia/commons/1/12/Planning_tank_operations,_Siege_of_Tobruk_cph.3b18203.jpg
Questions?
olaf.janssen@kb.nl - @ookgezellig
tinyurl.com/verzetskranten