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Linked Open Library Data
The British Library Experience
Neil Wilson
Head, Collection Metadata
The British Library
ALA Las Vegas
June 28 2014 © The British
Library Board
2014
www.bl.uk 2
Objectives
To describe:
•Why we offer linked data
•What we offer
•What we learned
www.bl.uk 3
The British Library
• Receives a copy of every
publication available in UK
• Collection includes over 150
million items:
• 14 million books
• 920,000 journal & newspaper titles
• 3 million sound recordings & much
more…
• Operates the world's largest
document delivery service
www.bl.uk 4
Metadata Provision
The BL Act records our role as
“national centre for… bibliographical & other
information services”
BL Metadata Services:
• Originally offered priced services
• Evolved through many technologies
• Began to offer open data in 2010
www.bl.uk 5
New Landscape – New Expectations
• The Web fuelled expectation
information should be open
• Government requirement for
open public data has grown
• The Open Data agenda now
covers:
• Transparency
• Economic growth
• Research
www.bl.uk 6
BL Open Metadata Strategy
We offer metadata to
promote:
• Innovation – by removing
unnecessary barriers
• Migration from local formats -
to cross domain standards
• Collaboration - with new user
communities
www.bl.uk 7
BL Open Metadata Strategy
Includes offerings for:
• Libraries - MARC21 & Z39.50
• Researchers - RDF/XML & .CSV
• Linked Data Users - RDF &
SPARQL
www.bl.uk 8
Results
• 1090 user organisations in
105 countries
• Collaborations with
Microsoft, UK Government
& developers on technical, standards
& licensing challenges
• Linked Open BNB
• Cabinet Office exemplar & selected for
UK National Information Infrastructure
• 2 million transactions monthly
• 95% Satisfaction Rating
www.bl.uk 9
Why Work on Linked Open Library Data?
• Concept of open &
connected information - fits
well with libraries
• Participation in the new
landscape – improves access to
knowledge & culture
• The promise of a reusable
global data pool – should
enable libraries to add unique value
www.bl.uk 10
Why Choose the BNB for LOD?
Reusable publications
dataset - not unique catalogue
Permissive License – CC0
 Includes: People, Places,
Dates, Subjects
 Consistent over 60 years
Underlined our commitment
www.bl.uk 11
Linking
To give data broader
context we linked to:
• General resources:
• GeoNames
• Lexvo
• RDF Book
Mashup
• Library resources:
• LCSH
• VIAF
• Dewey.info
www.bl.uk 12
How?
MARC21 to RDF Conversion Workflow
Process
• Selection
• Character set conversion
• Pre-processing
• URI generation
• Data transformation
• Create & load triples
• Produce VoiD descriptions
Tools
• Catalogue Bridge Utilities
• MARC Global/MARC Report
http://www.marcofquality.com/
• Jena Eyeball
http://jena.sourceforge.net/Eyeball/
www.bl.uk 13
Access Options
.
BNB 1950-2012
3.5 Million Records
98 Million Unique Triples
• bnb.data.bl.uk/sparql
• thedatahub.org/dataset/bluk-bnb-basic
• www.bl.uk/bibliographic/download.html
• bnb.data.bl.uk
www.bl.uk 14
Lessons Learned - Linked Data
• Use the opportunity to
review & remodel your data
• Plan for service support &
identifier persistence
• Try to move beyond data
dumps & silo sites
www.bl.uk 15
Lessons Learned – Communication
• Expertise & abilities vary - new user
groups require new communication
methods
• Clearly explain data & its uses – via
examples
• Document your data – e.g. identify
entities (places, people, dates etc.)
• Partner with researchers &
developers – learn together & build
communities of interest
www.bl.uk 16
Lessons Learned - Data
• You understand your data – but
need to show its relevance to others
• Offer samples for comment –
identify user needs & continually improve
• Conversions highlight old
issues - & often create new ones
• Actively license derived data -
to support linked open services
www.bl.uk 17
Lessons Learned – Expectations
• One size doesn’t fit all –
different users = different needs
• How to capture usage, value
& attribution – to maintain
funding
• Need to ensure evolving
expectations are met –
Community, libraries, Government etc.
FreeFree
OfferingOffering
www.bl.uk 18
Lessons Learned - Efficiencies
• Flexibility of linked data store
• Improved visibility of unique
material
• New perspectives on your
data – e.g. Controlled fields
• Better return on investment -
via increased utility & flexibility
“Linking Open Data cloud diagram, by Richard
Cyganiak and Anja Jentzsch. http://lod-cloud.net/”
www.bl.uk 19
Final Thoughts
Linked Library Data:
• Can reach a wider audience
- offering greater value
• Isn’t a ‘magic bullet’ – but can
be a valuable tool
• May not be ultimate solution
– but libraries can learn much &
contribute valuable experience
www.bl.uk 20
Final Thoughts
• Better web integration of
our resources increases
visibility to new groups -
Wider utility = wider relevance
• Linked Data offers libraries
new opportunities - authority,
persistence & stability being key to
the emerging infrastructure
See: http://vimeo.com/36752317
www.bl.uk 21
For More Information Visit…
http://www.bl.uk/bibliographic/datafree.html
http://bnb.data.bl.uk/faqs
http://bnb.data.bl.uk/getting-started
http://bnb.data.bl.uk/docs
http://twitter.com/#!/BLMetadata
metadata@bl.uk
http://www.bl.uk/bibliographic/datafree.html
Thank you 
for attending this ALCTS program
Your feedback is important to us!
Using the QR code or URL below please take a
moment to complete a short online evaluation
form and enter to win the ALCTS prize drawing.
http://tinyurl.com/alcts-ac14-eval
#alctsAC14

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British Library Linked Open Data Presentation for ALA June 2014

  • 1. Linked Open Library Data The British Library Experience Neil Wilson Head, Collection Metadata The British Library ALA Las Vegas June 28 2014 © The British Library Board 2014
  • 2. www.bl.uk 2 Objectives To describe: •Why we offer linked data •What we offer •What we learned
  • 3. www.bl.uk 3 The British Library • Receives a copy of every publication available in UK • Collection includes over 150 million items: • 14 million books • 920,000 journal & newspaper titles • 3 million sound recordings & much more… • Operates the world's largest document delivery service
  • 4. www.bl.uk 4 Metadata Provision The BL Act records our role as “national centre for… bibliographical & other information services” BL Metadata Services: • Originally offered priced services • Evolved through many technologies • Began to offer open data in 2010
  • 5. www.bl.uk 5 New Landscape – New Expectations • The Web fuelled expectation information should be open • Government requirement for open public data has grown • The Open Data agenda now covers: • Transparency • Economic growth • Research
  • 6. www.bl.uk 6 BL Open Metadata Strategy We offer metadata to promote: • Innovation – by removing unnecessary barriers • Migration from local formats - to cross domain standards • Collaboration - with new user communities
  • 7. www.bl.uk 7 BL Open Metadata Strategy Includes offerings for: • Libraries - MARC21 & Z39.50 • Researchers - RDF/XML & .CSV • Linked Data Users - RDF & SPARQL
  • 8. www.bl.uk 8 Results • 1090 user organisations in 105 countries • Collaborations with Microsoft, UK Government & developers on technical, standards & licensing challenges • Linked Open BNB • Cabinet Office exemplar & selected for UK National Information Infrastructure • 2 million transactions monthly • 95% Satisfaction Rating
  • 9. www.bl.uk 9 Why Work on Linked Open Library Data? • Concept of open & connected information - fits well with libraries • Participation in the new landscape – improves access to knowledge & culture • The promise of a reusable global data pool – should enable libraries to add unique value
  • 10. www.bl.uk 10 Why Choose the BNB for LOD? Reusable publications dataset - not unique catalogue Permissive License – CC0  Includes: People, Places, Dates, Subjects  Consistent over 60 years Underlined our commitment
  • 11. www.bl.uk 11 Linking To give data broader context we linked to: • General resources: • GeoNames • Lexvo • RDF Book Mashup • Library resources: • LCSH • VIAF • Dewey.info
  • 12. www.bl.uk 12 How? MARC21 to RDF Conversion Workflow Process • Selection • Character set conversion • Pre-processing • URI generation • Data transformation • Create & load triples • Produce VoiD descriptions Tools • Catalogue Bridge Utilities • MARC Global/MARC Report http://www.marcofquality.com/ • Jena Eyeball http://jena.sourceforge.net/Eyeball/
  • 13. www.bl.uk 13 Access Options . BNB 1950-2012 3.5 Million Records 98 Million Unique Triples • bnb.data.bl.uk/sparql • thedatahub.org/dataset/bluk-bnb-basic • www.bl.uk/bibliographic/download.html • bnb.data.bl.uk
  • 14. www.bl.uk 14 Lessons Learned - Linked Data • Use the opportunity to review & remodel your data • Plan for service support & identifier persistence • Try to move beyond data dumps & silo sites
  • 15. www.bl.uk 15 Lessons Learned – Communication • Expertise & abilities vary - new user groups require new communication methods • Clearly explain data & its uses – via examples • Document your data – e.g. identify entities (places, people, dates etc.) • Partner with researchers & developers – learn together & build communities of interest
  • 16. www.bl.uk 16 Lessons Learned - Data • You understand your data – but need to show its relevance to others • Offer samples for comment – identify user needs & continually improve • Conversions highlight old issues - & often create new ones • Actively license derived data - to support linked open services
  • 17. www.bl.uk 17 Lessons Learned – Expectations • One size doesn’t fit all – different users = different needs • How to capture usage, value & attribution – to maintain funding • Need to ensure evolving expectations are met – Community, libraries, Government etc. FreeFree OfferingOffering
  • 18. www.bl.uk 18 Lessons Learned - Efficiencies • Flexibility of linked data store • Improved visibility of unique material • New perspectives on your data – e.g. Controlled fields • Better return on investment - via increased utility & flexibility “Linking Open Data cloud diagram, by Richard Cyganiak and Anja Jentzsch. http://lod-cloud.net/”
  • 19. www.bl.uk 19 Final Thoughts Linked Library Data: • Can reach a wider audience - offering greater value • Isn’t a ‘magic bullet’ – but can be a valuable tool • May not be ultimate solution – but libraries can learn much & contribute valuable experience
  • 20. www.bl.uk 20 Final Thoughts • Better web integration of our resources increases visibility to new groups - Wider utility = wider relevance • Linked Data offers libraries new opportunities - authority, persistence & stability being key to the emerging infrastructure See: http://vimeo.com/36752317
  • 21. www.bl.uk 21 For More Information Visit… http://www.bl.uk/bibliographic/datafree.html http://bnb.data.bl.uk/faqs http://bnb.data.bl.uk/getting-started http://bnb.data.bl.uk/docs http://twitter.com/#!/BLMetadata metadata@bl.uk http://www.bl.uk/bibliographic/datafree.html
  • 22. Thank you  for attending this ALCTS program Your feedback is important to us! Using the QR code or URL below please take a moment to complete a short online evaluation form and enter to win the ALCTS prize drawing. http://tinyurl.com/alcts-ac14-eval #alctsAC14