using lod to crowdsource dutch ww2 underground newspapers on wikipedia - dch, 30-08-2017, berlin,...
TRANSCRIPT
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Using LOD to crowdsource Dutch WW2 underground newspapers on Wikipedia
Olaf Janssen, National Library of the Netherlands
Digital Cultural Heritage, Berlin, 30-08-2017
[email protected] - @ookgezellig - slideshare.net/OlafJanssenNL
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htt
p:/
/ww
w.4
en5
mei
amst
erd
am.n
l/at
tach
men
t/4
74
54
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During WW2 the Dutch resistance issued many
underground newspapers.
In every shape & form…
htt
p:/
/ww
w.4
en5
mei
amst
erd
am.n
l/at
tach
men
t/4
74
54
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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-organized, ‘professional’
big titles…
(o.a. Parool, Vrij Nederland, Trouw, de Waarheid)
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…to very small, amateur, home-made,
pamphlet-like issues
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After the war 1.300 newspaper titles were collected & 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
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http://opac-gonext.oclc.org:8180/DB=8/XMLPRS=Y/PPN?PPN=107123223
.. and were described in formal library catalogues
(1.300 titles)
Bibliographic metadata
Underground students’ newspaper
from The Hague
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In 2010 these WW2 newspapers were digitized…..
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www.delpher.nl/kranten
…into full-texts in Delpher …
(1.300 titles)
The Dutch national aggregator for historic full-texts • Newspapers • Books • Magazines
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In Delpher you can read and word-search these newspapers…
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But say, I want to know more about this newspaper • What sort of illegal newspaper was it? • What is the history of this newspaper? • Who wrote it? • Where was this newspaper printed? • How was it distributed? • Were there any relations with other underground newspapers? • Etc…
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But say, I want to know more about this newspaper • What sort of illegal newspaper was it? • What is the history of this newspaper? • Who wrote it? • Where was this newspaper printed? • How was it distributed? • Were there any relations with other underground newspapers or
resistance groups? • Etc…
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But say, I want to know more about this newspaper • What sort of illegal newspaper was it? • What is the history of this newspaper? • Who wrote it? • Where was this newspaper printed? • How was it distributed? • Were there any relations with other underground newspapers? • Etc…
You can’t answer these questions from Delpher
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Big drawback of Delpher:
No contextual information about WW2 underground newspapers
https://thejungleisneutral.files.wordpress.com/2013/11/lost.jpg
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Where would many people go to find contextual information about historic newspapers?
Probably Wikipedia (via Google)
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Where would many people go to find contextual information about historic newspapers?
Probably Wikipedia (via Google)
![Page 17: Using LOD to crowdsource Dutch WW2 underground newspapers on Wikipedia - DCH, 30-08-2017, Berlin, Germany](https://reader034.vdocuments.site/reader034/viewer/2022042605/5a64a75c7f8b9a63568b4f85/html5/thumbnails/17.jpg)
http://nl.wikipedia.org/wiki/De_Geus_onder_studenten_(verzetsblad)
Where would many people go to find contextual information about historic newspapers?
Probably Wikipedia (via Google)
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htt
p:/
/2.b
p.b
logsp
ot.
com
/_BW
zuYw
iS6-I
/TM
geR
sFd3m
I/AAAAAAAAElw
/3cv
gbZSPW
cs/s
1600/d
oct
or+
macr
o+
judy+
scare
d.jpg
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htt
p:/
/2.b
p.b
logsp
ot.
com
/_BW
zuYw
iS6-I
/TM
geR
sFd3m
I/AAAAAAAAElw
/3cv
gbZSPW
cs/s
1600/d
oct
or+
macr
o+
judy+
scare
d.jpg
![Page 20: Using LOD to crowdsource Dutch WW2 underground newspapers on Wikipedia - DCH, 30-08-2017, Berlin, Germany](https://reader034.vdocuments.site/reader034/viewer/2022042605/5a64a75c7f8b9a63568b4f85/html5/thumbnails/20.jpg)
htt
p:/
/2.b
p.b
logsp
ot.
com
/_BW
zuYw
iS6-I
/TM
geR
sFd3m
I/AAAAAAAAElw
/3cv
gbZSPW
cs/s
1600/d
oct
or+
macr
o+
judy+
scare
d.jpg
Information on Dutch underground newspapers was distributed across multiple, unconnected sources
1. Descriptions (metadata in library catalogue, 1.300 titles) 2. Content (full-text in Delpher, 1.300 titles) 3. Context (in Wikipedia…. at least... )
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htt
p:/
/2.b
p.b
logsp
ot.
com
/_BW
zuYw
iS6-I
/TM
geR
sFd3m
I/AAAAAAAAElw
/3cv
gbZSPW
cs/s
1600/d
oct
or+
macr
o+
judy+
scare
d.jpg
Information on Dutch underground newspapers was distributed across multiple, unconnected sources
1. Descriptions (metadata in library catalogue, 1.300 titles) 2. Content (full-text in Delpher, 1.300 titles) 3. Context (in Wikipedia…. at least... )
![Page 22: Using LOD to crowdsource Dutch WW2 underground newspapers on Wikipedia - DCH, 30-08-2017, Berlin, Germany](https://reader034.vdocuments.site/reader034/viewer/2022042605/5a64a75c7f8b9a63568b4f85/html5/thumbnails/22.jpg)
htt
p:/
/2.b
p.b
logsp
ot.
com
/_BW
zuYw
iS6-I
/TM
geR
sFd3m
I/AAAAAAAAElw
/3cv
gbZSPW
cs/s
1600/d
oct
or+
macr
o+
judy+
scare
d.jpg
Information on Dutch underground newspapers was distributed across multiple, unconnected sources
1. Descriptions (metadata in library catalogue, 1.300 titles) 2. Content (full-text in Delpher, 1.300 titles) 3. Context (in Wikipedia…. at least... )
![Page 23: Using LOD to crowdsource Dutch WW2 underground newspapers on Wikipedia - DCH, 30-08-2017, Berlin, Germany](https://reader034.vdocuments.site/reader034/viewer/2022042605/5a64a75c7f8b9a63568b4f85/html5/thumbnails/23.jpg)
htt
p:/
/2.b
p.b
logsp
ot.
com
/_BW
zuYw
iS6-I
/TM
geR
sFd3m
I/AAAAAAAAElw
/3cv
gbZSPW
cs/s
1600/d
oct
or+
macr
o+
judy+
scare
d.jpg
Information on Dutch underground newspapers was distributed across multiple, unconnected sources
1. Descriptions (metadata in library catalogue, 1.300 titles) 2. Content (full-text in Delpher, 1.300 titles) 3. Context (in Wikipedia…. at least... )
![Page 24: Using LOD to crowdsource Dutch WW2 underground newspapers on Wikipedia - DCH, 30-08-2017, Berlin, Germany](https://reader034.vdocuments.site/reader034/viewer/2022042605/5a64a75c7f8b9a63568b4f85/html5/thumbnails/24.jpg)
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This Wikipedia article is a carefully chosen exception
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1. Very few illegal newspapers had their own WP articles
2. The inventory of these newspapers on WP:NL was far from complete
<<< 1.300 titles
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We tackled both problems!
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Wikiproject
“Systematically and uniformly describe all 1.300 Dutch underground newspapers from WW2
on Wikipedia”
tinyurl.com/verzetskranten
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Wikiproject
“Systematically and uniformly describe all 1.300 Dutch underground newspapers from WW2
on Wikipedia”
tinyurl.com/verzetskranten
Reach big audiences
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https://thejungleisneutral.files.wordpress.com/2013/11/lost.jpg
We badly needed contextual information about
the newspapers. Where did we get it?
De Ondergrondse Pers 1940-1945
Lydia E. Winkel, H. de Vries , 1989
This paper book contains entries about
all 1.300 illegal newspapers
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Entry 199 – De Geus; (onder studenten)
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Unique ID
(within the book)
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Place of publication
Newspaper Place name
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Context
Raw material for
Wikipedia article!
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Person names
Newspaper Persons
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IDs of related students’ newspapers
This newspaper Other newspapers
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We OCRed this book into PDF + put it online under CC-BY-SA
http://www.niod.nl/nl/de-ondergrondse-pers-1940-1945 (PDF)
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We OCRed this book 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 database. Link titles to places, persons, other titles Link titles to KB-catalogue (metadata) and Delpher (full-text) Link titles, persons and places to external sources
![Page 39: Using LOD to crowdsource Dutch WW2 underground newspapers on Wikipedia - DCH, 30-08-2017, Berlin, Germany](https://reader034.vdocuments.site/reader034/viewer/2022042605/5a64a75c7f8b9a63568b4f85/html5/thumbnails/39.jpg)
We OCRed this book 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 database. Link titles to places, persons, other titles Link titles to KB-catalogue (metadata) and Delpher (full-text) Link titles, persons and places to external sources
![Page 40: Using LOD to crowdsource Dutch WW2 underground newspapers on Wikipedia - DCH, 30-08-2017, Berlin, Germany](https://reader034.vdocuments.site/reader034/viewer/2022042605/5a64a75c7f8b9a63568b4f85/html5/thumbnails/40.jpg)
We OCRed this book 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 database Link: titles places, persons, other titles Link titles to KB-catalogue (metadata) and Delpher (full-text) Link titles, persons and places to external sources
![Page 41: Using LOD to crowdsource Dutch WW2 underground newspapers on Wikipedia - DCH, 30-08-2017, Berlin, Germany](https://reader034.vdocuments.site/reader034/viewer/2022042605/5a64a75c7f8b9a63568b4f85/html5/thumbnails/41.jpg)
We OCRed this book 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 database Link: titles places, persons, other titles Link: titles library catalogue (metadata) and Delpher (full-text) Link titles, persons and places to external sources
![Page 42: Using LOD to crowdsource Dutch WW2 underground newspapers on Wikipedia - DCH, 30-08-2017, Berlin, Germany](https://reader034.vdocuments.site/reader034/viewer/2022042605/5a64a75c7f8b9a63568b4f85/html5/thumbnails/42.jpg)
We OCRed this book 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 database. Link: titles places, persons, other titles Link: titles library catalogue (metadata) and Delpher (full-text) Link: titles, persons and places external sources
![Page 43: Using LOD to crowdsource Dutch WW2 underground newspapers on Wikipedia - DCH, 30-08-2017, Berlin, Germany](https://reader034.vdocuments.site/reader034/viewer/2022042605/5a64a75c7f8b9a63568b4f85/html5/thumbnails/43.jpg)
Convert PDF into structured database.
Link: titles places, persons, other titles Link: titles library catalogue (metadata) and Delpher (full-text) Link: titles, persons and places external sources
LOD & database expert
Gerard Kuys
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Convert PDF into structured database.
Link: titles places, persons, other titles Link: titles library catalogue (metadata) and Delpher (full-text) Link: titles, persons and places external sources
![Page 45: Using LOD to crowdsource Dutch WW2 underground newspapers on Wikipedia - DCH, 30-08-2017, Berlin, Germany](https://reader034.vdocuments.site/reader034/viewer/2022042605/5a64a75c7f8b9a63568b4f85/html5/thumbnails/45.jpg)
VIAF
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Available online (PDF, flat file)
Open license (CC-BY-SA)
---------------------------------------------------
Convert PDF into structured database. Link: titles places, persons, other titles Link: titles library catalogue (metadata) and Delpher (full-text) Link: titles, persons and places external sources
![Page 48: Using LOD to crowdsource Dutch WW2 underground newspapers on Wikipedia - DCH, 30-08-2017, Berlin, Germany](https://reader034.vdocuments.site/reader034/viewer/2022042605/5a64a75c7f8b9a63568b4f85/html5/thumbnails/48.jpg)
Summer 2016
This LOD database is unique in the Netherlands.
First time data about underground newspapers was
systematically collected and linked online!
htt
ps:
//w
ww
.pin
tere
st.c
om
/fre
eth
ewro
nge
d/w
orl
d-w
ar-i
i/
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Wikiproject
“Systematically and uniformly describe all 1.300 Dutch underground newspapers from WW2
on Wikipedia”
![Page 50: Using LOD to crowdsource Dutch WW2 underground newspapers on Wikipedia - DCH, 30-08-2017, Berlin, Germany](https://reader034.vdocuments.site/reader034/viewer/2022042605/5a64a75c7f8b9a63568b4f85/html5/thumbnails/50.jpg)
We have: LOD database
Using an article template we generated 1.300 uniform and interlinked Wikipedia stubs
htt
ps:
//c1
.sta
ticf
lickr
.co
m/9
/82
81
/76
99
23
19
18
_11
a73
56
c38
_b.jp
g
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https://nl.wikipedia.org/wiki/De_Geus_onder_studenten_(verzetsblad)
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Grey = Wikipedia article stub Automatically generated from database using the article template
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https://nl.wikipedia.org/wiki/De_Geus_onder_studenten_(verzetsblad)
Non-grey = Wikipedia article stub Automatically generated from database using the article template
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This bit was added manually
to expand stub into full article
Crowdsourcing by Dutch Wikipedia community
https://nl.wikipedia.org/wiki/De_Geus_onder_studenten_(verzetsblad)
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Wikipedia volunteers are expanding the 1.300 stubs…
gradually creating more and more full articles.
Door Sebastiaan ter Burg [CC BY 2.0 (http://creativecommons.org/licenses/by/2.0)], via Wikimedia Commons
![Page 56: Using LOD to crowdsource Dutch WW2 underground newspapers on Wikipedia - DCH, 30-08-2017, Berlin, Germany](https://reader034.vdocuments.site/reader034/viewer/2022042605/5a64a75c7f8b9a63568b4f85/html5/thumbnails/56.jpg)
Before the project
![Page 57: Using LOD to crowdsource Dutch WW2 underground newspapers on Wikipedia - DCH, 30-08-2017, Berlin, Germany](https://reader034.vdocuments.site/reader034/viewer/2022042605/5a64a75c7f8b9a63568b4f85/html5/thumbnails/57.jpg)
The number of articles is growing steadily…
![Page 58: Using LOD to crowdsource Dutch WW2 underground newspapers on Wikipedia - DCH, 30-08-2017, Berlin, Germany](https://reader034.vdocuments.site/reader034/viewer/2022042605/5a64a75c7f8b9a63568b4f85/html5/thumbnails/58.jpg)
… making Dutch people wiser and happier!
htt
p:/
/ww
w.f
orm
erd
ays.
com
/20
11
/05
/du
tch
-lib
erat
ion
.htm
l