Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.
Linked Open Data: Opportunities & Barriers for Archives<br />Archives 360, Society of American Archivists<br />Chicago, US...
The goal of Linked Data is to enable people to share structured data on the Web as easily as they can share documents toda...
Linked Data Design Issues<br />URIs<br />LD Design Issues<br />Triples<br />http://www.w3.org/DesignIssues/LinkedData.html...
Triples<br />Triples statements<br />‘Things’ have ‘properties’ with ‘values’<br />Subject – Predicate - Object<br />Tripl...
LOCAH Project<br />Linked Open Copac and Archives Hub<br />Funded by #JiscEXPO 2/10 ‘Expose’ call<br />1 year project. Sta...
What is LOCAH Doing?<br />Part 1: Exposing Archives Hub & Copac data as Linked Data<br />Part 2: Creating a prototype visu...
Archives Hub Model<br />in<br />Finding Aid<br />Place <br />PostcodeUnit<br />Repository(Agent)<br />administeredBy/admin...
We’re Linking Data!<br />If something is identified, it can be linked to<br />We take items from our datasets and link the...
Enhancing our data<br />Already have some links:<br />Time - reference.data.gov.ukURIs<br />Location - UK Postcodes URIs a...
http://data.archiveshub.ac.uk/<br />
http://data.archiveshub.ac.uk/id/person/nra/webbmarthabeatrice1858-1943socialreformer<br />
Visualisation Prototype<br />Using Timemap – <br />Googlemaps and Simile<br />http://code.google.com/p/timemap/<br />Early...
Key Benefit of Linked Data<br /><ul><li>API based mashupswork against a fixed set of data sources
Hand crafted by humans
Don’t integrate well
Linked Data promises an unbound global data space
Easy dataset integration
Generic ‘mesh-up’ tools</li></li></ul><li>Linked Open Data<br />Data can be open or closed<br />Linked Data can be open or...
Some challenges<br />
Data Modelling<br />Steep learning curve<br />RDF terminology “confusing”<br />Lack of archival examples<br />Complexity<b...
Linking Subjects<br />
Linking Places<br />
Sustainability<br />Can you rely on data sources long-term? <br />Ed Summers at the Library of Congress created http://lcs...
Library of Congress Subject Headings<br />
Upcoming SlideShare
Loading in …5
×

Linked Open Data: Opportunities & Barriers for Archives

2,527 views

Published on

A presentation given at Archives 360, Society of American Archivists conference, Chicago, USA.
26th August 2011

Published in: Technology, Education

Linked Open Data: Opportunities & Barriers for Archives

  1. 1. Linked Open Data: Opportunities & Barriers for Archives<br />Archives 360, Society of American Archivists<br />Chicago, USA<br />26th August 2011<br />Adrian StevensonLOCAH Project Manager<br />UKOLN, University of Bath, UK<br />
  2. 2. The goal of Linked Data is to enable people to share structured data on the Web as easily as they can share documents today.<br />Bizer/Cyganiak/Heath Linked Data Tutorial, linkeddata.org<br />
  3. 3. Linked Data Design Issues<br />URIs<br />LD Design Issues<br />Triples<br />http://www.w3.org/DesignIssues/LinkedData.html<br />
  4. 4. Triples<br />Triples statements<br />‘Things’ have ‘properties’ with ‘values’<br />Subject – Predicate - Object<br />Triples are the basis of RDF and Linked Data<br />Is Member Of<br />Provides Access To<br />The Rolling Stones<br />ArchivalResource<br />Repository<br />Keith Richards<br />
  5. 5. LOCAH Project<br />Linked Open Copac and Archives Hub<br />Funded by #JiscEXPO 2/10 ‘Expose’ call<br />1 year project. Started August 2010<br />Partners & Consultants:<br />UKOLN, Mimas, Eduserv, Talis, OCLC, Ed Summers<br />http://blogs.ukoln.ac.uk/locah/<br />
  6. 6. What is LOCAH Doing?<br />Part 1: Exposing Archives Hub & Copac data as Linked Data<br />Part 2: Creating a prototype visualisation<br />Part 3: Reporting on opportunities and barriers<br />
  7. 7. Archives Hub Model<br />in<br />Finding Aid<br />Place <br />PostcodeUnit<br />Repository(Agent)<br />administeredBy/administers<br />maintainedBy/maintains<br />encodedAs/encodes<br />hasPart/partOf<br />EAD Document<br />accessProvidedBy/providesAccessTo<br />Level<br />Biographical History<br />topic/page<br />hasBiogHist/isBiogHistFor<br />Language<br />level<br />ArchivalResource<br />language<br />at time<br />topic/page<br />origination<br />hasPart/partOf<br />TemporalEntity<br />Creation<br />product of<br />associatedWith<br />extent<br />inScheme<br />Extent<br />Concept <br />ConceptScheme<br />Agent <br />representedBy<br />Object<br />foaf:focus<br />Is-a<br />Is-a<br />associatedWith<br />Family <br />Person <br />Organisation <br />Place <br />Book<br />participates in<br />Genre <br />Function <br />Birth<br />Death<br />TemporalEntity<br />at time<br />
  8. 8. We’re Linking Data!<br />If something is identified, it can be linked to<br />We take items from our datasets and link them to items from other datasets<br />BBC<br />Copac<br />VIAF<br />DBPedia<br />GeoNames<br />Archives Hub<br />
  9. 9. Enhancing our data<br />Already have some links:<br />Time - reference.data.gov.ukURIs<br />Location - UK Postcodes URIs and Ordnance Survey URIs<br />Names - Virtual International Authority File<br />VIAF matches and links widely-used authority files - http://viaf.org/<br />Names - DBPedia<br />Also looking at:<br />Subjects - Library Congress Subject Headings and DBPedia<br />Open Calais for entity extraction – from ‘bioghist’ field <br />
  10. 10. http://data.archiveshub.ac.uk/<br />
  11. 11. http://data.archiveshub.ac.uk/id/person/nra/webbmarthabeatrice1858-1943socialreformer<br />
  12. 12. Visualisation Prototype<br />Using Timemap – <br />Googlemaps and Simile<br />http://code.google.com/p/timemap/<br />Early stages with this<br />Will give location and ‘extent’ of archive.<br />Will link through to Archives Hub <br />
  13. 13. Key Benefit of Linked Data<br /><ul><li>API based mashupswork against a fixed set of data sources
  14. 14. Hand crafted by humans
  15. 15. Don’t integrate well
  16. 16. Linked Data promises an unbound global data space
  17. 17. Easy dataset integration
  18. 18. Generic ‘mesh-up’ tools</li></li></ul><li>Linked Open Data<br />Data can be open or closed<br />Linked Data can be open or closed<br />Most benefit gained when data is open<br />
  19. 19. Some challenges<br />
  20. 20. Data Modelling<br />Steep learning curve<br />RDF terminology “confusing”<br />Lack of archival examples<br />Complexity<br />Archival description is hierarchical and multi-level<br />‘Dirty’ Data<br />
  21. 21. Linking Subjects<br />
  22. 22. Linking Places<br />
  23. 23. Sustainability<br />Can you rely on data sources long-term? <br />Ed Summers at the Library of Congress created http://lcsh.info<br />Linked Data interface for LOC subject headings<br />People started using it<br />
  24. 24. Library of Congress Subject Headings<br />
  25. 25. Scalability / Provenance<br /><ul><li>Same issue with attribution
  26. 26. Solutions: Named graphs? Quads?
  27. 27. Best Practice</li></ul>Example by Bradley Allen, Elsevier at <br />LOD LAM Summit, SF, USA, June 2011<br />
  28. 28. Licensing<br /><ul><li>Ownership of data often not clear
  29. 29. Hard to track attribution
  30. 30. CC0 for Archives Hub and Copac data</li></li></ul><li>Is Linked Data the Way?<br />Enables ‘straightforward’ integration of wide variety of data sources<br />Archival data can ‘work harder’<br />New channels into your data<br />Researchers are more likely to discover sources <br />‘Hidden' archives collections of become of the Web<br />
  31. 31. Attribution and CC License <br />Sections of this presentation adapted from materials created by other members of the LOCAH Project<br />This presentation available under creative commonsNon Commercial-Share Alike:<br />http://creativecommons.org/licenses/by-nc/2.0/uk/<br />

×