Adrian Stevenson (UKOLN) – Linked Open Copac Archives Hub (LOCAH) project – use of Timemap for visualising linked data

LOCAH Project
L inked O pen C opac and A rchives H ub
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/

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

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
Archival Resource Repository Provides Access To The Rolling Stones Keith Richards Is Member Of

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
BBC VIAF DBPedia Archives Hub Copac GeoNames

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 DBPedia

http://data.archiveshub.ac.uk/

http://data.archiveshub.ac.uk/id/person/nra/webbmarthabeatrice1858-1943socialreformer

How are we creating the Visualisation Prototype?
Based on researcher use cases
Data queried from Sparql endpoint
Use tools such as Simile, Many Eyes, Google Charts

Visualisation Prototype
Using Timemap –
Googlemaps and Simile
http://code.google.com/p/timemap /
Early stages with this
Will give location and ‘extent’ of archive.
Will link through to Archives Hub

Linking Lives Project
Starts September 2011
Builds on Locah work

The Key Benefit of Linked Data (?)
Mashups work 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

Matching Subjects

Matching Places

Sustainability
Can you rely on data sources long-term?
Ed Summers at the Library of Congress created http://lcsh.info
Linked Data interface for LOC subject headings
People started using it

Scalability / Provenance Example by Bradley Allen, Elsevier at LOD LAM Summit, SF, USA
Same issue with attribution
Solutions: Named graphs? Quads?
Best Practice

Data Modelling
Complexity
Archival description is hierarchical and multi-level
Dirty Data
Licensing
‘ Ownership’ of data
Hard to track attribution
CC0 for Archives Hub and Copac data

Linked Data for Repositories?
Repository data can ‘work harder’
New channels into your data
New connections with other data sources
Researchers are more likely to discover sources
‘ Hidden' collections of repositories become of the Web

Adrian Stevenson (UKOLN) – Linked Open Copac Archives Hub (LOCAH) project – use of Timemap for visualising linked data

by Repository Fringe on Aug 08, 2011

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Adrian Stevenson (UKOLN) – Linked Open Copac Archives Hub (LOCAH) project – use of Timemap for visualising linked data — Presentation Transcript