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<< Back to the reports page >> To the Github repo of this page

GLAM reports for NDE partners

Latest update: 18 September 2024

This page shows reports and key figures generated by the GLAMorousToHTML tool for the partners of the Netwerk Digitaal Erfgoed (NDE), the Dutch network for digital heritage.

For the wider context and reports for other national and international institutions, see the GLAM reports page.

Contents of this page

Individual reports for Dutch provinces and Aruba

Friesland

Groningen

Drenthe

Overijssel

Gelderland

Flevoland

Utrecht

Noord-Holland

Zuid-Holland

Noord-Brabant

Zeeland

Limburg

Aruba

Combined data

Combined institutional data

The individual Excel files for all NDE partners have been combined into a single overall Excel file, which has also been converted to a CSV file.

Downloads

You can download this combined data in two formats:

Please note that the individual Excel file are accessible from the HTML reports above, or directly from the data/nde folder in the repo.

Combined key figures

The key figures from the individual NDE partner reports have been combined into a single dataset. These key figures are represented by the column names explained below.

Downloads

You can download these combined key figures in two formats:

Explanation of the column names


  • Date: The date on which the report was generated.
    • Example: 04-09-2024
  • Full institution name: The full/official name of the institution
    • Example: Universiteitsbibliotheek Leiden
  • Commons category: The main category on Wikimedia Commons containing the images related to the (collections of the) institution.
    • Example: Collections of Leiden University Library
  • Commons category URL: The full URL of this category, with spaces replaced by underscores.
  • Category depth: The level of subcategories that are taken into account for the report. This is an input paramater of the GLAMorous tool.
    • Examples: 0 (no subcategories, only images in the main category are used), 1 (all first level subcategories) etc.
  • Total images available: The total number of images available in the main category and its tree of subcategories (as specified by the category depth).
    • Example: 194.097
  • Distinct images used: The unique/distinct number of images from this category tree that are used in Wikipedia articles (all language versions).
    • Example: 3.397
  • Image reuse percentage: The percentage of the available images that are actually used in Wikipedia articles. This is a measure for the uptake of the images.
    • Example: (3.397/194.097) * 100 = 1.75%
  • Distinct articles: The number of unique/distinct Wikipedia articles (all language versions) that are illustrated by (one or more) images from the category tree.
    • Example: 6.306
  • Number of languages: The number of Wikipedia language versions in which images from the category tree are used.
    • Example: 168
  • Total usages: The total number of times that images from the category tree show up in Wikipedia articles, in all language versions. This is different from 'Distinct articles', as a single image can illustrate multiple articles and v.v, one article can contain multiple images. For illustration, see this easy example.
    • Example: 8.288
  • Average image reuse: The average number of times a single image is used to illustrate an article. This is 'Total usages' divided by 'Distinct images used'. This is a measure for the outreach effectiveness of the images that are used in Wikipedia articles. For example, if we look at the Wereldmuseum Rotterdam, we see that only 3 of their images show up in articles 79 times, resulting in an average image reuse of 79/3 = 26.33. These couple of images are very effective in their reach and are seen worldwide! At the other end of the spectrum is the Rijksdienst voor het Cultureel Erfgoed; their 23.471 distinct images 'only' have 31.955 usages, making this number equal 1.36.
    • Example: 8.288/3.397 = 2.44
  • HTML URL: URL of the report for the specified date (04-09-2024)
  • Excel URL: URL of the corresponding Excel file of the specified date (04-09-2024). This file shows which exact images are used per article.

Publications

  • Test story with Datawrapper interactive visuals
  • Voor elke NDE partner, welk artikel heeft de meeste beelden van/uit/over die instelling? In welke taalversie is dat artikel