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Linked Data, the Semantic Web and What It All Means for Books
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Linked Data, the Semantic Web and What It All Means for Books

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What is the semantic web and what does it hold for the book industry? Graham Bell, Chief Data Architect at EDItEUR (http://www.editeur.org/), will give us a tour of the semantic web and show us the ...

What is the semantic web and what does it hold for the book industry? Graham Bell, Chief Data Architect at EDItEUR (http://www.editeur.org/), will give us a tour of the semantic web and show us the way linked data has begun to be used by libraries and the other potential it holds for the book industry.

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Linked Data, the Semantic Web and What It All Means for Books Presentation Transcript

  • 1. Linked data the semantic weband what it all means for publishers Graham Bell EDItEUR 7th March 2013
  • 2. About me• 20 years experience at the point where publishing and technology meet• formerly senior manager in IT department for HarperCollins UK • led development of bibliographic, editorial and digital asset management systems –￿involved in e-book, e-audio, print-on-demand and online projects• joined EDItEUR in mid-2010 as Chief Data Architect, primarily responsible for EDItEUR’s standards development work
  • 3. About EDItEUR• not-for-profit membership organisation• develops, supports and promotes metadata and identification standards for the book, e-book and serials supply chains• acknowledged centre of expertise on standards and metadata for the industry• based in London, but a global membership of publishers, distributors, wholesalers, subscription agents, retailers, libraries, system vendors, rights organizations and trade associations
  • 4. About EDItEUR• also provides management services to International ISBN, ISTC, ISNI Agencies• EDItEUR has three full-time staff, two FTE project staff, plus consultants from both the book and serials sectors• we also work closely with other standards organisations, to ensure our standards meet the needs of their stakeholders too• member participation is vital to ensure that standards keep pace with evolving business requirements
  • 5. “An item of metadata is a relationshipthat someone claims to exist between two entities.” <indecs>, 2000 http://www.doi.org/factsheets/indecs_factsheet.html
  • 6. Title: The fire engine that disappeared Title: The man on the Author: Maj Sjöwall balconyTitle: Roseanna ISBN: 978-0-00-783533-1 Author: Maj SjöwallAuthor: Maj Sjöwall Pub date: 07-08-2007 ISBN: 978-0-00-724293-1ISBN: 978-0-00-723283-3 Pub date: 15-01-2007Pub date: 07-08-2006
  • 7. <Contributor> <SequenceNumber>1</SequenceNumber> <ContributorRole>A01</ContributorRole> <NameIdentifier> <NameIDType>16</NameIDType> <IDValue>0000000121479135</IDValue> </NameIdentifier> <PersonName>Maj Sjöwall</PersonName></Contributor>
  • 8. <Contributor> <SequenceNumber>1</SequenceNumber> <ContributorRole>A01</ContributorRole> <NameIdentifier> <NameIDType>16</NameIDType> <IDValue>0000000121479135</IDValue> </NameIdentifier> <PersonName>Maj Sjöwall</PersonName></Contributor> http://isni.org/search
  • 9. 0..n Contributor NameSequenceNumber NameTypeContributorRole NamesBeforeKeyBiographicalNote PrefixToKey KeyNames SuffixToKey 0..n NamesAfterKeyName IdentifierNameIDTypeIDTypeNameIDValue
  • 10. predicatesubject object
  • 11. "0000000121479135" ID type 16 from List 44 contributor role A01 name type 01 from List 17 from List 18book "Sjöwall, Maj" predicate subject object
  • 12. Linked data• expresses metadata as a collection of triples• uses URIs to represent relations and entities• prefers persistent HTTP URIs so they can be ‘looked up’ to get further details • the data can be ‘self-describing’• is intended to be flexible and extensible, because it’s ‘schemaless’• isn’t new• is not intended for human consumption
  • 13. Linked data• expresses metadata as a collection of triples• uses URIs to represent relations and entities••prefers persistent HTTP URIs–so they can be Uniform Resource Identifier two types… • Uniform Resource Name ‘looked up’ to get further details • the urn:isbn:9780001234567 • data can be ‘self-describing’• is intended Resource Locator extensible, • Uniform to be flexible and because it’s ‘schemaless’ • http://dx.doi.org/10.978.000/1234567• isn’t new• is not intended for human consumption
  • 14. isbn:9780007232833 "0000000121479135" ID type 16 ID type 15 from List 44 from List 5 contributor role A01 name type 01 from List 17 from List 18 book "Sjöwall, Maj"
  • 15. http:// http://ns.editeur.org/harpercollins.co.uk/ genid:A96 onix/codelists/17#A01 360366 http://ns.editeur.org/ genid:A96 "0000000121479135" onix/codelist/44#16 http://ns.editeur.org/ genid:A96 "Sjöwall, Maj" onix/codelists/18#01 http:// http://ns.editeur.org/ urn:isbn:harpercollins.co.uk/ onix/codelists/5#15 9780007232833 360366
  • 16. isbn:9780007232833 "0000000121479135" ID type 16 ID type 15 from List 44 from List 5 contributor role A01 from List 17 book "Sjöwall, Maj" http://purl.org/vocab/ "Wahlöö, Per" relationship/lifePartnerOf
  • 17. "McBain, Ed""Mankell, Henning" http://purl. ￿org/vocab/ ￿relationship/ influencedBy ￿http://purl. org/vocab/ relationship/ "Sjöwall, Maj" ￿￿influencedBy http://purl.org/vocab/ "Wahlöö, Per" relationship/lifePartnerOf http://vocab.org/relationship/.html
  • 18. An aside• linked data is often confused with the concept of ‘Linked￿Open￿Data’ • linked data, but with an ideological view that data should be open and freely available for anyone to reuse without restrictions • much of the data that’s claimed to be LOD is in￿fact data where the owner has omitted to post a licence governing its reuse • most of the truly open data is often data produced by the public sector
  • 19. An aside• linked data is often confused with the concept of ‘Linked￿Open￿Data’ • linked data, but with an ideological view that data should be open and freely available for anyone to reuse without restrictions • much of the data that’s claimed to be LOD is in￿fact data where the owner has omitted to post a licence governing its reuse • most of the truly open data is often data produced by the public sectorhttp://lod-cloud.net/
  • 20. Linking data• linking depends on shared entities • we need to be sure we are really talking about the same thing – not just two people with the same name, but actually the same contributor • unambiguous identifiers • controlled vocabularies, taxonomies and clear, shared semantics based on shared data models• linked data needs careful data modelling, and a concern for semantics and identity – and it’s technically challenging. There’s a steep learning curve
  • 21. Linked data challenges• linked data contains no provenance• metadata licensing is often unclear• needs shared persistent identifiers –￿but much of the current linked data activity is experimental and lacks sustainability• poor legacy data – we’re still struggling with the schema-led approach…• and where’s my record gone?
  • 22. Linked data promise• just another way of expressing the same data • book metadata is already ‘data with links’ • linked data removes the limits of ‘the record’• but optimised for machines, not people • Tim Berners-Lee’s ‘semantic web’ • allows machines to ‘browse’ for other data – so if your book is set in Sweden, then it can automatically be linked to other sources of data about Sweden or to other Swedish things• could change the game of ‘discoverability’
  • 23. graham@editeur.org www.editeur.org