Presenation of interactive and innovative Digital Research tool to browse data in the visual way with some requirements: ● Online presentation of strikes events should make its easy to track and retrieve relevant data ● “Linked Data in action”: data from research datasets (Strikes Database) and news articles (metadata) from the the Royal Library (KB) linked together in order to create Semantic Web view ● Should help to answer researcher's questions in the most easiest way by appropriate visualization of specific variables ● Should provide clear explanation of historical events by online visualization tools like charts, maps and timelines ● To present data trends that may lead to new insights about facts and events

1. Vyacheslav Tykhonov
Data visualization expert,
Software developer,
International Institute of
Social History (IISH),
vty (at) iisg.nl
Kalliope Zervanou
Researcher, Radboud University
Nijmegen,
k.zervanou (at) let.ru.nl
Antal van den Bosch
Full professor, Centre for
Language Studies and CIW-
BC,Faculty of Arts, Radboud
University Nijmegen
a.vandenbosch (at) let.ru.nl
Marien van der Heijden
Project Manager, International
Institute of Social History
mvh (at) isg.nl
Visualization of Labour Conflicts in the Netherlands
HiTIME and ISHER, Digging into Data

2. Project challenge
• Development of interactive and innovative Digital Research tool to browse data in the visual way
• Online presentation of strikes events should make its easy to track and retrieve relevant data
• “Linked Data in action”: data from research datasets (Strikes Database) and news articles
(metadata) from the the Royal Library (KB) linked together in order to create Semantic Web
view
• Should help to answer researcher's questions in the most easiest way by appropriate visualization
of specific variables
• Should provide clear explanation of historical events by online visualization tools like charts, maps
and timelines
• To present data trends that may lead to new insights about facts and events

3. Entry Point http://node-195.dev.socialhistoryservices.org/strikes/

4. Data Sources
• The IISG Strikes database is a secondary historical resource created by the
historian Dr. Sjaak van der Velden (13721 records up to 2008)
https://collab.iisg.nl/web/labourconflicts/tabel
• Newspapers archive from the National Library of Netherlands (KB) is an
online collection of digitized Dutch daily newspapers dating from 1618 to
1995 (the digitized data is in XML format, following Dublin Core [5]
metadata standards.)
http://www.kb.nl
•

5. Research dataset: IISG Strikes database

6. Publications Source
News Articles from the National Library

7. Linked Data
• Strike events that defined and described in the Strikes DB linked to
the news articles digitized by National Library (KB)
• Every link created by linking algorithm can be evaluated by hands or
automatically
• Wrong links can be changed or removed from the system
• Correct links between events and articles can be exported in
RDF/DCAT for further processing by Semantic Web tools
supporting SPARQL (in progress)

8. Robust and Interactive Web Interface
Chart view - interface for
interactive two-dimensional
view of linked aggregated
data in terms of time
Map view - interface for
interactive three-dimensional
view of linked aggregated data
in spacio-temporal terms
Timeline view - interface presenting interactive timeline and
providing access to/retrieval of linked news publications from
Royal Library

9. News Articles aggregated in time

10. Online Visualization Tips
Online Libraries

Charts: Open Flash, D3.js

Timeline: Timeline.js

Map: StatPlanet

Daily Calendar: Cal-HeatMap
Color schemas

Strikes (blue)

News articles (red)

11. 12 variables from Strikes Database
visualized in time and space
Sector: industrial sector affected
Duur: strike duration in calendar days
AantalStakers: number of strike
participants
GestaakteDagen: man-days of strike lost,
in terms of man hours
AantalBetrokkenBedrijven: number of
companies involved
Voornamelijk: type of workers group
involved, e.g. women,young
workers, immigrants, etc.
Beroep: type of profession involved
Bond: trade union involved
Eisen: reason of the strike
Uitkomst: result of the strike (successful,
unsuccessful, settled, etc)
Karakter: strike character, i.e. supported by
a union, or spontaneous
Bedrijf: companies or other type of working
place entities involved

12. Visualization of database variables in time:
companies involved in strikes (line view)

13. Linked Data Objectives

Interactive views of linked aggregated data
(charts, bars, graphs, pies, map)

Interactive visual access to the linked data
(timelines for new publications)

User is able to zoom in the detailed values of a year, a
month or a week

Interface types interconnected, so users can easily pass
from one view (chart, map, timeline) to the other

14. Visualization of database variable:
result of strikes (pie view)

15. Map view in time for strikes database

16. Year view by months for strikes database, 1977

17. Visualization of database variables in time:
trade unions (trend lines)

18. Year/Month view by days for strikes database
with links to description of events

19. Timeline for News Publications from National Library linked
with event description from Strikes Database, January, 1900

20. Thank you!
That's all!
Try our visualization here
http://node-195.dev.socialhistoryservices.org/strikes/
and feel free to ask questions.