British Library Linked Open Data Presentation for ALA June 2014

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Presentation given at ALA 2014 Las Vegas on linked data lessons learned.

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British Library Linked Open Data Presentation for ALA June 2014

  1. 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. 2. www.bl.uk 2 Objectives To describe: •Why we offer linked data •What we offer •What we learned
  3. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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

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