International Institute of Social History

Created on Nov 7th, 2017

Unifying and Augmenting Metadata as Linked Open Data

Created 3 months ago
authors: - name: Richard Zijdeman orcid: 0000-0003-3902-3720 affiliation: 1,3 - name: Ivo Zandhuis orcid: 0000-0003-0165-8341 affiliation: 1,2 - name: Liliana Melgar orcid: 0000-0003-2003-4200 affiliation: 1 affiliations: - id: 1 name: International Institute of Social History - id: 2 name: Ivo Zandhuis Research & Consultancy - id: 3 name: University of Stirling keywords: - metadata - linked open data - data stories - fair paper abstract: The International Institute of Social History (IISH) provides access to archives, books, collections, images and datasets. For all these sources it creates metadata. For historical reasons these metadata are written in different languages, such as EAD and MARC. In this paper we demonstrate how we apply Linked Open Data to unify the different metadata languages. Next, we show how the Linked Data can be queried to gain insights in the materials the IISH is hosting.

Entity Recognition on 60 year old images using Yolo

Created 7 months ago

Amsterdam, 2023-08-24, Rinske Zandhuis & Richard Zijdeman

Zoeken naar stakingen in Labour Conflicts database

Created 8 months ago


  1. Introductie / Introdcution
  2. Grafieken/Visualisaties / Visualizations
    • 2.1. Het aantal stakingen per jaar (tijdlijn)
      Strikes since a given year (timeline)
    • 2.2. De spreiding van stakingen in Nederland voor een periode
      Spread of strikes in a time period (map)
    • 2.3. De top # beroepen die staakten
      Top # occupations that had the most strikes (pie chart)
    • 2.4. De top # grootste stakingen sinds een bepaald jaar
      Top # largest strikes since a given year (bar chart)
    • 2.5. De top #stakingen per bedrijf sinds een bepaald jaar
      Top # strikes per company since a given year (by number of strikers) (bar chart)
    • 2.6. De resultaten van alle stakingen
      Outcomes of all the strikes in the database (pie chart)
    • 2.7. Karakter van de stakingen
      Character of the strikes
    • 2.8. Aantal stakingen per stad sinds 1900
      Number of strikes per city since 1900
  3. Vragen aan de database / Questions for the database
    • 3.1. Zoek een term op / Free text search

    • 3.2. Zoek stakingen in een bepaald jaar / Search strikes in a year

    • 3.3. Zoek stakingen in een tijd periode / Search strikes in a time period

    • 3.4. Zoek stakingen in een bepaald jaar en stad / Search strikes in a year and place

    • 3.5. Zoek stakingen per beroep en jaar. / Search strikes per company per year

Demo: transcribing videos in IISG Collection (Wim Kok Interview)

Created a year ago

This story will explore the possibilities of extracting information from a dataset that is based on a video. The dataset contains the transcripts from the second part of Collectie Interviews Wim Kok. Every triple has a unique identifier (UID) that is connected to one transcript, URL and its start and end time in the video. If you click on the URL link, you will be directed to part of the video where that particular transcript is spoken.

Wim Kok served as Prime Minister of the Netherlands from 22 August 1994 until 22 July 2002.

Iinterviews by Leonard Ornstein, commissioned by the IISH, with Wim Kok about his time in the trade union movement, as a director at the Bouwbond NVV, and at the trade union federations NVV and FNV. This includes Kok's own career from employee Bouwbond to chairman FNV. They talk about the role of the trade union movement in the transition to decentralized wage formation and the social agreement of 1972, about social renewal and levelling, about social security and employment policy. This is interpreted within the general political and social developments of the 1960s and 1970s and the consequences of this for the relationship with the other trade union federations, with employers and the government., Interviews by Leonard Ornstein, commissioned by the IISH, with Wim Kok about his time in the trade union movement, as a director at the Bouwbond NVV, and at the trade union federations NVV and FNV.

Also see:

Lippische Ziegler

Created 3 years ago

Archival material

The materials derived for the Lippische Ziegler project are described as an IISH Collection: If you click on the tab 'content list' you'll be able to view all records within the collection. Each record consists of multiple scan, that you can can view by clicking 'online access'. To search through the archival materials go to the tab 'search in text' and enter text.

Search example in archival material

If you search for the string 'lohn' in the 'search in text' tab described above, the first results mentions:

  • Found on page 675 for item 4 :
    • Bauerschaft 165 Lohne Hellmann Adolph Filges Meister Assemissen 165 Lohne Hellmann Fritz

To view this text on the original scan, click on 'item 4' which will bring you to the content list tab. There click 'online access' below item 4, which will open a new page or tab with a viewer of all scans in 'item 4'. On top of the page it reads: "Image 1 of 900". Change '1' into 675 and you'll end up at the right scan. Use zoom and arrow buttons to navigate the page in more detail.

Caveat: sometimes the numbering of the page is off by 1-3 pages!


There are two databases based on this archival material. One is the transcribed text from the source mentioned above: The other is the database build by Lucassen & Lourens: .

Wish list

In this day and age of Linked Data it would be great to make two improvements to the materials described above. One is to directly link the scans with the transcribed texts. I have done that here below for some of the scans. You can search for a text and then directly visit the right 'page' scan.

Heterogeneity in representations of IISG film meta-data

Created 3 years ago

This story draws up how film metadata is currently provided at the IISG. Most insights are from Frank de Jong, archivist at the IISG. He mentioned that metadata on movies has been stored at varying levels of granualarity. What follows are a couple of examples he mentioned.