Linking Cultural Heritage Information

Share

Linked data is seen as the enabling technology of the ‘Semantic Web’. Sir Tim Berners-Lee described this not just:

… about putting data on the web. It is about making links, so that a person or machine can explore the web of data.  With linked data, when you have some of it, you can find other, related, data.

 

lod-datasets_2011-09-19_colored

 

The Linking Open Data Cloud (2011 version) diagram contains an impressive 311 ‘packages’ (collections of triples) of linked data showing the links between them and the sectors they are coming from. The research conducted by Linked Heritage project in to the details of these packages ‘lifted the lid’ to find a few significant and interesting facts:

  • Linked data is not always ‘open’ (57.4% of packages were not open licensed for re-use, 69.1% of triple were not open)
  • Cultural heritage is largely absent for the Cloud (CH packages only represent c5% of the packages)
  • Most of the links are to limited number of packages (the great majority of links were to DBpedia, GeoNames Semantic Web and Freebase)

All this led to a set of reccommendations that can be summarised as follows:

  • Any publication of linked data must be accompanied by a licence which makes it clear what uses can be made of the data.
  • The licence may be standard, e.g. provided by Creative Commons, or one created specifically by the publisher.
  • Not to create a proprietary format which is only intended to be used for your package;
  • Use standard format(s) appropriate for the type of data being published.
  • Consider using a cultural heritage specific format for linked data. Possible candidate formats, ones based on: EDM, CIDOC CRM, and LIDO.
  • Link to packages, of a general nature, which are often linked to:  DBpedia; GeoNames Semantic Web; national sources of terminology (e.g. UK Postcodes);
  • Link to known packages in the cultural heritage, e.g.: Library of Congress Subject Headings; VIAF: The Virtual International Authority File;  and Dewey Decimal Classification);
  • Provide a SPARQL endpoint to the package.

All this advice Linked Heritage followed in the Linked data demonstrator.

 

linked_data_demo

The project was able to publish a limited set of its metadata, initially from the UK Government Art collection and Photo Marburg, and latterly by packages from other partners.  In the demonstrator it was possible to enable and illustrate an RDF graph and to enable a search which would not be possible from the original data, for example to carry out a query for artists born in Britain in the UK Government Art Collection (GAC) data. In the GAC data only the name of the artist is given not their country of origin. However by linking to GAC data to DBpedia data it is possible to answer this. Similar queries can also be envisaged, and this is one of the most powerful ‘selling points’ for linked data.

 

linked_data_demo_2

 

Contact us to view and try the Linked Data Demonstrator online!

 

Visit the linked-heritage Showcase

Leave a Reply


Related Articles

Linked Heritage training programme
The Learning Objects, developed in the frame of Linked Heritage, range from Europeana to aggregation, metadata standards, linked data, terminology, etc.) and address an identified shortage of awareness of these important topics.
User Engagement and Digital Cultural Heritage: Reflecting on the Kaleidoscope Project
The project 50s in Europe Kaleidoscope was concluded in February 2020. The project explored user engagement with digital cultural heritage by focusing on archival photographs related to the project theme ‘1950s in Europe’. Digital Tools Kaleidoscope gathered user-experience feedback on two tools: the WithCrowd annotation tool and the Visual Similarity Search. The Visual Similarity Search draws on deep learning techniques enabling the linking of resources/images based on visual similarity. Both...
New project for The ESPON European Grouping on Territorial Cooperation
The young project, started this May 2020, will complement the ESPON Targeted Analysis of 2019: “The Material Cultural Heritage as a Strategic Territorial Development Resource: Mapping Impacts Through a Set of Common European Socio-economic Indicators” (https://www.espon.eu/cultural-heritage). The consortium is composed by three no-profit bodies with decades of European collaboration and joint research experiences: •Istituto per la Ricerca Sociale (IRS, Project Leader) •European Association of...
Europe Day - Webinar on Digital Cultural Heritage
To commemorate this year’s Europe Day organised on the 9th of May a webinar dedicated to Digital Cultural Heritage is being organised. This webinar brings together two of the smallest island nations of the EU – Malta and Cyprus. These are the only EU members in the Mediterranean sea, physically cut off from the main continent with thousands of years of rich history and unique UNESCO listed world heritage sites. Both Mediterranean Islands have a lot in common, they are both committed to preser...