The document discusses using linked open data and linked data principles for libraries. It covers key concepts like URIs, RDF triples, ontologies and vocabularies. It then outlines options for libraries to both consume and publish linked data, such as enriching existing catalog data by linking to external sources, creating new information aggregates, and publishing library holdings and metadata as linked open data. Challenges include a lack of common identifiers, FRBRization of existing data, and the need for content curation and new technical systems to fully realize the benefits of linked open data for libraries.

1. Linked Open Data for libraries Lukas Koster Library Systems Coordinator Library of the University of Amsterdam http://www.uba.uva.nl @lukask NVB 2011, 17 november 2011

2. http://www.loc.gov/marc/transition/news/framework-103111.html

4. Open data: 5 stars (Tim Berners-Lee) Data: no stars Open Data: 1 star - O pen L icence Open Data: 2 stars - Re usable Open Data: 3 stars - O pen F ormat Linked Open Data: 4 stars - URI 's Linked Open Data: 5 stars - L inked D ata

6. RDF URI Triple Ontology Vocabulary

8. Relational databases: primary keys Primary key Primary key Foreign key Books Title Author Year ID Authors Name Year ID Authors record Dan Brown 1964 456 ID Name Year The Da Vinci Code Books record 456 2003 1289 Title ID Author Year

9. Relational databases and applications Select title, year from books Select name, year from authors where books.author=authors.id Database Application User interface SQL Title : The Da Vinci Code Author : Dan Brown, 1964 Year : 2003 Authors record Dan Brown 1964 456 ID Name Year The Da Vinci Code Books record 456 2003 1289 Title ID Author Year

10. URIs Primary key Primary key Foreign key OpenLibrary Title Author Year URI VIAF Name Year URI Authors record Dan Brown 1964 http://viaf.org/viaf/102403515 URI Name Year The Da Vinci Code Books record http://viaf.org/viaf/102403515 2003 http://openlibrary.org/works/OL76837W Title URI Author Year

11. Linked data and applications Select ?title ?year … Select ?name ?year WHERE ….. Database Application User interface SPARQL Title : The Da Vinci Code Author : Dan Brown, 1964 Year : 2003 Authors record Dan Brown 1964 http://viaf.org/viaf/102403515 URI Name Year The Da Vinci Code Books record http://viaf.org/viaf/102403515 2003 http://openlibrary.org/works/OL76837W Title URI Author Year

21. DBPedia (WikiPedia)

22. LoC

23. Two sides Publish Consume

24. Summary: Linked Open Data The web as global database/web of data RDF as universal API Applications using global data via RDF WWW

26. Changing information world WWW http://www.flickr.com/photos/elenaromera/353826561/ http://www.flickr.com/photos/simona_/4068354970/

27. Changing role for libraries Reference desk Content curation Information gateway

30. Links as text strings Links to internal records

32. FRBR F unctional R equirements for B ibliographic R ecords Defined in relation to tasks performed by users when searching and making use of national bibliographies and library catalogues http://archive.ifla.org/VII/s13/frbr/frbr_current2.htm#2.2

35. http://www.loc.gov/cds/downloads/FRBR.PDF © Library of Congress/Barbara Tillett

36. FRBR for books Editions Copies Original Adaptation Translation

37. FRBR Group 1 Entities - WEMI Manifestation Item Work Expression Catalogue Missing links

38. Triples written by painted by is about author of painter of is subject of uri uri uri uri uri uri

39. LOD, FRBR and cataloguing written by painted by author of painter of is subject of http://permalink.opc.uva.nl/item/001665446 is about Manifestation Item Work Expression http://viaf.org/viaf/102403515 Dan Brown http://openlibrary.org/works/OL76837W The Da Vinci Code http://viaf.org/viaf/24604287 Leonardo da Vinci http://id.loc.gov/authorities/names/n98088614 The Last Supper Dutch translation De Da Vinci Code Holding OBA http://www.worldcat.org/libraries/57394 http://<expression-uri> http://<manifestation-uri> Library

40. Work Expression Manifestation http://openlibrary.org/works/OL76837W URI 650 $a 100 $a 245 $a http://en.wikipedia.org/wiki/The_Last_Supper_(Leonardo_da_Vinci) Subject http ://viaf.org/viaf/102403515 Author The Da Vinci Code Original Title http://<expression-uri> URI 245 $a De Da Vinci Code Title 546 $a dut (or: URI to language code) Language http://openlibrary.org/works/OL76837W Work 260 $c 2006 Date 260 $b http://isbndb.com/d/publisher/anchor_books.html Publisher http://<expression-uri> Expression http://<manifestation-uri> URI

41. Work Expression Manifestation Holding Item(s) Global shared bibliographic data Local holdings data http://openlibrary.org/works/OL76837W URI http://<expression-uri> URI http://openlibrary.org/works/OL76837W Work http://<expression-uri> Expression http://<manifestation-uri> URI http://<holding-uri> URI http://<manifestation-uri> Manifestation http://www.worldcat.org/libraries/57394 Library Availability http://<holding-uri> Holding http://<item-uri> URI WWW

42. Manifestation Item Work Expression FRBR Group 1 FRBR Group 2 FRAD FRBR Group 3 FRSAD Holding Publishers Libraries

46. FRBR Links

47. http://search.obvsg.at/OBV FRBR

48. http://search.obvsg.at/OBV Text about author Embedded from DBPedia (Wikipedia Linked Data engine) Uses German National Library Author ID’s

50. Example: Pilot project Linking library catalogue data to theatre performance data Dutch Digital Cultural Heritage Foundation DEN as instigator http://den.nl/ Library of the University of Amsterdam Theatre Institute of The Netherlands http://tin.nl/ http://www.uba.uva.nl/

51. Library catalogue results No FRBR here ( yet )

52. Library catalogue results

53. TIN theatre production database

54. TIN theatre production database

55. What we made

56. How we did it - URIs < base-url >/person/Beckett, Samuel < base-url >/title/Beckett, Samuel/Waiting for Godot JavaScript/JQuery HTML

57. How we did it – JavaScript/JQuery < base-url >/person/Beckett, Samuel < base-url >/title/Beckett, Samuel/Waiting for Godot <base-url>/ production/Beckett, Samuel/Waiting for Godot/1988-11-22/6750

59. Identifiers/URIs/String matching /title/Beckett, Samuel/Waiting for Godot /title/Beckett, Samuel/Waiting for Godot : a tragicomedy in two acts /title/Beckett, Samuel/En attendant Godot : pièce en deux actes /title/Beckett, Samuel/Wachten op Godot /title/Beckett, Samuel/Waiting for Godot /title/Beckett, Samuel/Waiting For Godot /title/Beckett, Samuel/Wachten op Godot /title/Beckett, Samuel/Wachtend op Godot /title/Beckett, Samuel/Wachten op Godot (De favorieten) /title/Beckett, Samuel/Wachten op Godot (eerste bedrijf) /title/Beckett, Samuel/En attendant Godot /title/Beckett, Samuel/Warten auf Godot

60. Ideally…. FRBR

61. Current situation Implicit relations

64. Subject: Anne Frank The girl The war The house The diary The book The movie The play About Library catalogue FRBR

65. New aggregations http://www.annefrank.org/en/Subsites/Timeline/#

66. LOCAH – Linking Lives Linked Open Copac Archives Hub http://blogs.ukoln.ac.uk/locah/ http://data.archiveshub.ac.uk/ Publish linked data Archives+libraries Using Linked Data to create biographical resources http://archiveshub.ac.uk/linkinglives

75. Existing library system vendors adding publishing options authority files - VIAF working with user group http://igelu.org/special-interests/lod

77. http://kasabi.com/

78. http://dydra.com/

79. http://revyu.com/

80. http://virtuoso.openlinksw.com/

81. http://metadataregistry.org/

82. http://thedatahub.org/