Charper.lawdi.20120601

1. Linked Library Data, LOD-LAM, & the Dublin Core Metadata Initiative Presented 2012-06-01 Linked Ancient World Data Institute Corey A Harper

2. Topical Overview • - Value Vocabs • Talk outline: - id.loc * A few principles that didn't come up yesterday - fast - Open vs. Closed world - viaf assumption - Instance data - Graph Merging - British Library stuff & more * LOD-LAM - W3C Incubator Group * Libraries in the LOD-LAM - Archives - RDF Vocabs - ALA, IFLA, ExL, & more - Non-Library * DCMI * BiBo - DCAM * FRBR Fake * DCterms - Metadata Registries - Library - Vocabulary Alignment * Official FRBR * Where does this fit? * ISBD & other IFLA * Services from Libraries & Library * MARC 21 Data? * BibFrame * Use cases for LAWDI & AW * RDAdigi Scholarship 2012-06-01 Linked Ancient World Data Institute 2

3. 3 Takeaways • Libraries are doing a lot in this space • We want to do more, including building infrastructure for your research • The Dublin Core Metadata Initiative is more than a set of vocabularies. We’re working on how to do this 2012-06-01 Linked Ancient World Data Institute 3

4. Library Metadata • Rich stores of MARC, MODS, &c. • Robust Controlled Vocabularies  Subject Heading lists  Code lists  Thesauri • Emerging data model in FR* 2012-06-01 Linked Ancient World Data Institute 4

5. Era of “Perpetual Metadata Heterogeneity” --or-- 2012-06-01 Linked Ancient World Data Institute 5

6. Ethan Gruber’s Alphabet Soup MODS MARC METS DC EAD MADS TEI MEI CIDOC-CRM SKOS RDF RDFS XML FGDC FRBR EAC-CPF ISO-19115 FRSAD MARC-XML VRA FRAD PB- CORE DARWIN-CORE &c &c &c 2012-06-01 Linked Ancient World Data Institute 6

7. Bibliographic Vocabs • Bibliographic Ontology (Bibo)  Zotero, Omeka, EPrints and Others • FRBR – unofficial  And now Official (Thank you IFLA!) • International Standard for Bibliographic Description (ISBD) • Resource Description and Access (RDA) 2012-06-01 Linked Ancient World Data Institute 7

8. 2012-06-01 Linked Ancient World Data Institute 8

9. Linked Library [Archive, Museum] Data • LIBRIS (Swedish Union Catalog) • Library of Congress (LCSH, OSI) • German National Library • Hungarian National Library • British Library • Europeana • Archives Hub, LOCAH & Linking Lives 2012-06-01 Linked Ancient World Data Institute 9

10. LCSH in Dublin Core • Encoding Scheme for DC Subject • No easy way to draw on equivelent terms and cross-references • Abstract Model, RDF and SKOS are enabling applications to make use of the whole vocabulary 2012-06-01 Linked Ancient World Data Institute 10

11. LCSH as a Web Service! • Uses principles of linked data • lcsh.info -> id.loc.gov • People noticed when taken down • Links to French Subject Headings • URIs for Literal String lookup • http://id.loc.gov/authorities/label/World Wide Web 2012-06-01 Linked Ancient World Data Institute 11

14. Swedish National Library RDF Data http://blog.libris.kb.se/semweb/?p=7 Image courtesy of Martin Malmstem 2012-06-01 Linked Ancient World Data Institute 14

15. Image courtesy of Ed Summers 2012-06-01 Linked Ancient World Data Institute 15

16. Image courtesy of Ed Summers 2012-06-01 Linked Ancient World Data Institute 16

17. Other Vocabularies • Thesaurus for Economics • French Subject Headings • Swedish Subject Headings • IconClass (not on web yet) • OCLC Terminology Services • Dewey Decimal Classification • Virtual International Authority File (VIAF) • Faceted Application of Subject Terminology (FAST) 2012-06-01 Linked Ancient World Data Institute 17

18. Virtual International Authority File (VIAF) • http://viaf.org/ • http://viaf.org/viaf/data • 20+ Authority Files • Map/Reduce in Hadoop • ODC-By License  For attribution at triple level, using OCLC URI is sufficient 2012-06-01 Linked Ancient World Data Institute 18

19. Social Networks of Archival Context Image From: http://inkdroid.org/journal/2010/08/12/archival-context-on-the-web/ 2012-06-01 Linked Ancient World Data Institute 19

20. Linking Lives – Screenshots from P. Johnston 2012-06-01 Linked Ancient World Data Institute 20

21. Linking Lives – Screenshots from P. Johnston 2012-06-01 Linked Ancient World Data Institute 21

22. Resource Description and Access • Current focus on MARC  Much criticism  Within MARC, not a tremendous change  Different problems outside of MARC • Possible focus outside of MARC  RDA as realization of FRBR  RDA as Metadata Vocabularies  RDA as related to Bibo 2012-06-01 Linked Ancient World Data Institute 22

23. RDA as Metadata Vocabularies Slide Adapted from Diane Hillmann • RDA elements, roles and vocabularies have been provisionally registered • IFLA FRBRer and ISBD elements and vocabularies have been officially registered • Discussions about long term maintenance of both RDA and the vocabularies • Effort to create multi-language RDA Vocabularies 2012-06-01 Linked Ancient World Data Institute 23

24. Metadata Registries • Formerly NSDL Registry  Now “Open Metadata Registry”  Managing Vocabularies  Providing Vocabulary Services • RDA – Now adding translations • IFLA Work  FRBR, FRAD, FRSAD, ISBD 2012-06-01 Linked Ancient World Data Institute 24

26. BIBO and RDAVocab • Open question re: alignment  DCMI Vocabulary Management & Alignment • Simplified view of Bib Data is useful  Interlinking with more general data  Interlinking with non-library domain data • FRBR as internal model for library domain • Examples 2012-06-01 Linked Ancient World Data Institute 26

27. Dublin Core Efforts • Dublin Core Metadata Initiative, more than Dublin Core Metadata Element Set • Dublin Core Abstract Model • Application and Description Set Profiles • Harmonization, not Normalization • Vocabulary Management Infrastructure  Including Mapping Efforts 2012-06-01 Linked Ancient World Data Institute 27

28. DCAM Resource Model 2012-06-01 Linked Ancient World Data Institute 28

29. DCAM Resource Model: Subtle Difference • Property-Value pairs built around notion of “Described Resource” • Centralizing triples around a single object  Becoming Property-Value pairs • Preserving DC 1:1 Principle by including descriptions of “related resource” • How to validate??? 2012-06-01 Linked Ancient World Data Institute 29

31. Conclusions • Distributed bibliographic control environment  Linking Data  Focus on identification over description • “In short, by treating values as non-literal resources and assigning URIs to them we give ourselves (and others) the hooks on which to hang further descriptions.” - Andy Powell 2012-06-01 Linked Ancient World Data Institute 31

32. W3C Linked Library Data Incubator • Collected, Curated and Clustered over 50 Use Cases • Mined use cases for functional requirements and design patterns • Recommendations to W3C  Should lead to Working Groups (or new Community Groups) • http://www.w3.org/2005/Incubator/lld/ 2012-06-01 Linked Ancient World Data Institute 32

33. Other Activities • ALCTS/LITA Linked Library Data IG • IFLA Semantic Web IG  https://wiki.d-nb.de/x/vA10Ag • Open Knowledge Foundation  http://okfn.org/ • CKAN Linked Library Data Group:  http://ckan.net/group/lld • LC’s Bibliographic Framework Initiative  http://www.loc.gov/marc/transition/ • IGELU Linked Data Interest Group  http://igelu.org/special-interests/lod 2012-06-01 Linked Ancient World Data Institute 33

34. Thanks! Questions? corey.harper@nyu.edu 212.998.2479 @chrpr http://delicious.com/charper/lawditalk 2012-06-01 Linked Ancient World Data Institute 34

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