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W3C Library Linked Data Incubator Group (LLD XG)

W3C Library Linked Data Incubator Group (LLD XG). Antoine Isaac Europeana Vrije Universiteit Amsterdam aisaac@few.vu.nl. SWIB10 , Nov. 29 2010. Let’s start with a Linked Data cloud!. Linked Library Cloud beginning 2008. [Ross Singer, Code4Lib2010].

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W3C Library Linked Data Incubator Group (LLD XG)

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  1. W3C Library Linked DataIncubator Group (LLD XG) Antoine Isaac Europeana Vrije Universiteit Amsterdam aisaac@few.vu.nl SWIB10, Nov. 29 2010

  2. Let’s start with a Linked Data cloud!

  3. Linked Library Cloud beginning 2008 [Ross Singer, Code4Lib2010] http://code4lib.org/conference/2010/singer

  4. Linked Library “sector” in 2010 Linking Open Data cloud diagram, by Richard Cyganiak and Anja Jentzsch. http://lod-cloud.net/

  5. Useful vocabularies Available • Dublin Core • SKOS • BIBO • OAI-ORE ... In progress • RDA vocabularies • FRBR@IFLA dublincore.org/ www.w3.org/2004/02/skos/ bibliontology.com/ www.openarchives.org/ore/ metadataregistry.org/rdabrowse.htm

  6. Growing interest for linked data in the library community

  7. Libraries and LD, the perfect match? • Libraries have been producing metadata for ages • Libraries (often) produce high-quality metadata

  8. Libraries and LD, the perfect match? • Library metadata was locked in records • While it does maintain links to the outside world • Bibliographic and web references • Shared vocabularies • Same books!

  9. Unleash library data!

  10. A vision for the Dutch National Library Johan Stapel, Koninklijke Bibliotheek

  11. But there are obstacles

  12. Emerging best practices? • What vocabularies are being used, and is there emerging consensus about which to use? • What licenses (if any) are associated with the data? • How much linking and interlinking is going on? • What sorts of mechanisms does the publisher offer for getting the data: sitemap, feeds, SPARQL, bulk download? • What is the quality of the data: granularity, link integrity, vocabulary usage. • What approaches to identifiers for “real world things” have publishers taken: hash, slash, 303, PURLs, reuse of traditional identifiers, etc. • What are the relative sizes of the pools of library linked data? • How are updates being managed? Ed Summers http://inkdroid.org/journal/2010/04/18/research-ideas-for-library-linked-data/

  13. Connecting to more general LD Issues Mike Uschold’s “semantic elephants” • Proliferation of URIs, Managing Coreference • Overloading owl:sameAs • Versioning and URIs http://lists.w3.org/Archives/Public/public-lod/2010May/0012.html

  14. Also, gospel is needed

  15. What’s this I hear about the Semantic Web? • What is the Semantic Web? • What does it have to do with bibliography? • Does it make life better for patrons? • Does it strengthen libraries? • Is it practical? • Where can we get some? http://www.slideshare.net/stuartweibel/semantic-web-technologies-changing-bibliographic-descriptions

  16. Determine use case & business models • Libraries may just publish data, but they can do more • Connect library data to other data • Integrate data from external sources in library systems • Potential data consumers deserve some help, too

  17. Linking strategy

  18. Linking strategy • Links to library-originated sources • VIAF, LCSH, DDC, UDC, Worldcat, PND… • Links to resources from our cultural environment • Museums, archives • Scientific communities: bibliographic data & research data • Publishers • Europeana and other aggregators

  19. Need for charting the LLD landscape

  20. W3C incubator (XG) activity • Short-lived groups: 1 year • Light administration • Not W3C Recommendations, but “innovative ideas for specifications, guidelines, and applications that are not (or not yet) clear candidates as Web standards” http://www.w3.org/2005/Incubator/

  21. LLD Steps • Charter Co-chairs: Tom Baker, Emmanuelle Bermès, Antoine Isaac 10 W3C initiating members Aalto University Helsinki DERI Galway Competence Centre for Interoperable Metadata (KIM) Library of Congress Los Alamos National Laboratory MIMOS OCLC Talis University of Applied Sciences Potsdam Vrije Universiteit Amsterdam

  22. http://www.w3.org/2005/Incubator/lld/charter To help increase global interoperability of library data on the Web, by bringing together people involved in Semantic Web activities—focusing on Linked Data—in the library community and beyond, building on existing initiatives, and identifying collaboration tracks for the future.

  23. Planned deliverables Report presenting the landscape of LD development in the library domain and related sectors, including: • Use cases Gathering use cases and case studies demonstrating successful implementation of SW technologies in libraries and related sectors http://www.w3.org/2005/Incubator/lld/charter

  24. Planned deliverables Report presenting the landscape of LD development in the library domain and related sectors: • Use cases • Relevant technology pieces • Identifying relevant data models, vocabularies and ontologies and ways to build or improve interoperability among them • Identifying the need for the elaboration of new standards, guidelines & best practices • Identifying the areas of (Semantic) Web technology that could benefit from the expertise of the communities represented in the Group http://www.w3.org/2005/Incubator/lld/charter

  25. Leaving scope open The incubator group [scope] is not limited to libraries as institutions, but is meant to involve other cultural heritage institutions, partners from the publishing industry, and other relevant domains. Potential Links with other communities • W3C eGovernment Interest Group • EDItEUR • Semuse … http://www.w3.org/2005/Incubator/lld/charter

  26. LLD Steps • Charter

  27. LLD Steps • Charter • Gather participants • 50 participants • 22 W3C member organizations • 13 invited experts

  28. Alexander Haffner AndrásMicsik Andrew Houghton Antoine Isaac Bernard Vatant Carlo Meghini Dan Brickley Dickson Lukose Ed Summers Emmanuelle Bermes Felix Sasaki Fumihiro Kato Gordon Dunsire Guenther Neher Herbert Van De Sompel Hideaki Takeda IkkiOhmukai Jeff Young Joachim Neubert Jodi Schneider Jon Phipps Jonathan Rees Kai Eckert Karen Coyle Kim Viljanen Laszlo Kovacs Marcia Zeng Martin Malmsten Michael Hausenblas Michael Panzer Mohamed Zergaoui Monica Duke Nicolas Delaforge Oreste Signore Ray Denenberg Ross Singer Stu Weibel Thomas Baker TodMatola William Waites Wolfgang Halb Anette Seiler AsafBartof Kendall Clark Kevin Ford Peter Murray Lars Svensson Mark van Assem Alex Constantin Mike Bergman • Complete list at http://www.w3.org/2000/09/dbwg/details?group=44833&public=1

  29. Steps • Charter • Get participants • Start work!

  30. Use Cases • Call for use cases and case studies • 45 cases were gathered http://www.w3.org/2005/Incubator/lld/wiki/UseCases

  31. Use Cases 6 clusters • Bibliographic data • Authority data • Vocabulary alignment • Archives and heterogeneous data • Citations • Digital objects http://www.w3.org/2005/Incubator/lld/wiki/UseCases

  32. Use Cases Descriptions focusing on • Goals • Usage scenarios • Application of linked data for the given case • Problems and Limitations

  33. Use Cases Further curation • Refine into more abstract scenarios • Relate to other similar activities JISC cases for open bibliographic data http://obd.jisc.ac.uk • Relate use cases to technology issues http://www.w3.org/2005/Incubator/lld/wiki/UseCases

  34. Technology issues • Conceptual Models E.g., FR family • Applying SemWeb Technology to Library Data E.g., Re-using and extending available ontologies • Semantic Web/LD “Environmental Issues” E.g., Linking across datasets • Management and Distribution of Data E.g., updates • Community and Management Issues E.g., strategic guidance & business models http://www.w3.org/2005/Incubator/lld/wiki/Topics

  35. Vocabularies • Gathering vocabularies used in use cases • “element sets”, ontologies (Dublin Core, SKOS) • value vocabularies (VIAF, LCSH, GND) • Identifying gaps and overlaps

  36. Datasets • Starting a reference list of available data • Will feed into the LOD cloud via CKAN http://ckan.net/group/lld

  37. Dissemination • Gathering useful material Presentations, including tuff re-used in this presentation! Resources on terminology • Relevant events

  38. Looking at the future • Fostering collaboration among actors interested in porting cultural assets to the Linked Data Web Libraries, museums, archives, publishers • Proposing a relevant scope and organization for future targeted work Identify obstacles requiring further work or guidance

  39. Open work process • Publicly readable LLD XG wiki http://www.w3.org/2005/Incubator/lld/wiki/ • Publicly readable minutes for teleconference calls • Publicly readable LLD XG mailing list http://lists.w3.org/Archives/Public/public-xg-lld/

  40. Outside the LLD XG We try to provide spaces to the wider LLD community • LLD community wiki http://www.w3.org/2001/sw/wiki/LLD • LLD community mailing list >100 mails per months on models, datasets, URIs… http://lists.w3.org/Archives/Public/public-lld/ • Twitter hashtag #lldata

  41. Thanks! Acknowledgements: all LLD XG participants Alexander Haffner AndrásMicsik Andrew Houghton Antoine Isaac Bernard Vatant Carlo Meghini Dan Brickley Dickson Lukose Ed Summers Emmanuelle Bermes Felix Sasaki Fumihiro Kato Gordon Dunsire Guenther Neher Herbert Van De Sompel Hideaki Takeda IkkiOhmukai Jeff Young Joachim Neubert Jodi Schneider Jon Phipps Jonathan Rees Kai Eckert Karen Coyle Kim Viljanen Laszlo Kovacs Marcia Zeng Martin Malmsten Michael Hausenblas Michael Panzer Mohamed Zergaoui Monica Duke Nicolas Delaforge Oreste Signore Ray Denenberg Ross Singer Stu Weibel Thomas Baker TodMatola William Waites Wolfgang Halb Anette Seiler AsafBartof Kendall Clark Kevin Ford Peter Murray Lars Svensson Mark van Assem Alex Constantin Mike Bergman

  42. Pictures • http://www.flickr.com/photos/nationalarchives/3048286070/ • http://www.europeana.eu/portal/record/04031/2D6FEB34557045A39A1D62761DAE00FEAF8B48F0.html • http://www.europeana.eu/portal/record/03903/8C5C6AEFF6B50DCCEDF6A23A99DD3A2D66AEB2CC.html • http://www.europeana.eu/portal/record/03903/1C123C986FDEBFCD0E307AFF8969F07F95BFCA49.html • http://www.europeana.eu/portal/record/03903/78FA3F8B4299B45C25C395345D3D16ED24EA7F4F.html • http://www.europeana.eu/portal/record/04031/CBF262142EAC88529CAA8F8D8A6969B72F8D3541.html • http://www.europeana.eu/portal/record/03912/E9666896A50FDDE5F7F15A17C11219A7FBCBBC50.html • http://www.europeana.eu/portal/record/03903/95D8DA53C17F227BD27BCC148F79238FD6E2443E.html (Europeana links give access to resources on original sites)

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