Vortrag beim Archivcamp in Rostock, 25.9.2018

1. ZBW is member of the Leibniz Association
20th Century Press Archives goes Wikidata
Joachim Neubert
ZBW – Leibniz Information Centre for Economics
Archivcamp, Rostock
25.9.2018

2. Page 2
What are we dealing with?

3. Page 3

4. Page 4

5. Page 5
What are we dealing with?
Historic Press Archives, founded in 1909 (Hamburg) and 1914 (Kiel)
• Some material dating back to 1826
• Collections closed in 2005
Thematic dossiers covering
• Persons
• Companies
• Products
• General subjects and events

6. Page 6
Current state
Former DFG funded project, resulting in
• Digitized roll films (material before 1949)
• Relational database about dossiers, often with GND ID
• Big filesystem (containing roughly 1.8m pages)
• Accessible via
• custom application “Pressemappe 20. Jahrhundert” and
• DFG-Viewer (METS/MODS files, per dossier)
All metadata available under CC 0 license

7. Why Wikidata?
Page 7

8. Wikidata basics
• Knowledge base for Wikimedia projects
• All kinds of entities: concepts, places, people, works …
• Editable by everyone
• Data available (under CC0)
• http://query.wikidata.org/ (SPARQL)
• JSON API & database dumps
Page 8

9. Wikidata statements
Page 9

10. Page 10

11. Linking mechanism: external identifiers
• Property value: unique IDs from external database
• + URL stub in the property definition („formatter URL“)
• More than 3,000 external identifier properties
• Examples:
• GND
• proteins
• African plants
• Swedish cultural heritage objects
Page 11

12. Wikidata property P4293 (PM20 folder ID)
• Property proposal and discussion within the community
• Automatically inserted links derived from GND IDs
• Tool-supported manual linking
Page 12

13. Checking proposed matches in Mix‘n‘match
Seite 13

14. „Proof of concept“ example: Map of economists
Page 14
Query link (Wikidata SPARQL endpoint)

15. Display via DFG Viewer link
Page 15

16. Dataset for „Coding da Vinci 2018“
Dataset, API (SPARQL endpoint) and documentation for persons and
comapnies/organizations:
https://doi.org/10.5281/zenodo.1410553
More info on the Coding da Vinci Kultur-Hackathon: https://codingdavinci.de/
Page 16

17. Page 17
Thanks for listening!
Joachim Neubert
ZBW – Leibniz Information Centre for Economics
j.neubert@zbw.eu
http://webopac.hwwa.de/pressemappe20
http://zbw.eu/labs
https://www.wikidata.org/wiki/User:Jneubert