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 NetherlandsHiTIME and ISHER, Digging into Data

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

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

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•

Research dataset: IISG Strikes database

Publications Source

News Articles from the National Library

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)

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

News Articles aggregated in time

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)

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

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

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

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

Map view in time for strikes database

Year view by months for strikes database, 1977

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

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

Timeline for News Publications from National Library linked

with event description from Strikes Database, January, 1900

Thank you!

That's all!

Try our visualization here

http://node-195.dev.socialhistoryservices.org/strikes/

and feel free to ask questions.