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www.bath.ac.uk
LOCAH Project• Linked Open Copac and Archives Hub• Funded by #JiscEXPO 2/10 ‘Expose’ call
– 1 year project. Started August 2010
• Partners & Consultants:– UKOLN – Adrian Stevenson, Julian Cheal– Mimas – Jane Stevenson, Bethan Ruddock, Yogesh
Patel– Eduserv – Pete Johnston– Talis – Leigh Dodds, Tim Hodson– OCLC - Ralph LeVan, Thom Hickey– Ed Summers
• http://blogs.ukoln.ac.uk/locah/
www.bath.ac.uk
Archives Hub and Copac• UK National Data Services based at Mimas• Archives Hub is an aggregation of archival
descriptions from archive repositories across the UK– http://archiveshub.ac.uk
• Copac provides access to the merged library catalogues of libraries throughout the UK, including all national libraries– http://copac.ac.uk
www.bath.ac.uk
What is LOCAH Doing?
• Part 1: Exposing Archives Hub & Copac data as Linked Data
• Part 2: Creating a prototype visualisation
• Part 3: Reporting on opportunities and barriers
Linked Data Design Issues
• URIs
• LD Design Issues
• Triples
http://www.w3.org/DesignIssues/LinkedData.html
Triples• Triples statements
– ‘Things’ have ‘properties’ with ‘values’– Subject – Predicate - Object
• Triples are the basis of RDF
ArchivalResource
Repository Provides Access To
The Rolling Stones
Keith Richards Is Member Of
www.bath.ac.uk
We’re Linking Data!
• If something is identified, it can be linked to• We take items from one dataset and link
them to items from other datasets
BBCBBCVIAFVIAF
DBPediaDBPediaArchives
HubArchives
Hub
CopacCopac
GeoNamesGeoNames
www.bath.ac.uk
Enhancing our data• Already have some links:
– Time - reference.data.gov.uk URIs– Location - UK Postcodes URIs and Ordnance
Survey URIs – Names - Virtual International Authority File
• Matches and links widely-used authority files - http://viaf.org/
– Names - DBPedia
• Also looking at:– Subjects - Library Congress Subject Headings and