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Authority Web Services

Authority Web Services. T. Hickey http://errol.oclc.org/laf/n82-54463.html ALA LITA-ALCTS CCS ACIG 2005 June 26. Loosely Coupled Systems. Long been desirable design goal Loosely coupled systems make Development easier by loosening dependencies Standard methods are necessary

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Authority Web Services

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  1. Authority Web Services T. Hickey http://errol.oclc.org/laf/n82-54463.html ALA LITA-ALCTS CCS ACIG 2005 June 26

  2. Loosely Coupled Systems • Long been desirable design goal • Loosely coupled systems make • Development easier by loosening dependencies • Standard methods are necessary • Web is the best example • Authority systems fit naturally • Depends on web-addressable records • OCLC Examples • xISBN • Name authorities • Terminology pilot

  3. Authority Control within DSpace

  4. Controlled Form of the Name

  5. + Idealized Service Architecture SRW/U OAI-PMH Pears

  6. The Actual Service • http://alcme.oclc.org/eprintsUK/services/NACOMatch?method=getCompleteSelectedNameAuthority&serviceType=rest&name=Thom+Hickey&maxList=10&isPersonalName=true <?xml version="1.0" encoding="UTF-8" ?> - <nameAuthorities isPersonalName="true" query="Thom Hickey" maxList="10"> <phraseMatches hitCount="0" /> - <wordMatches hitCount="8"> - <match> <establishedForm>Hickey, Thomas Butler,--1947-</establishedForm> <uri>http://errol.oclc.org/laf/n82-54463</uri> <citation>His Research report on development of a probabilistic author search and matching technique for retrieval and creation of bib. records, 1981:</citation> </match> …

  7. What’s right about the service • Free • Fast • Simple • Can construct link to full authorities record: http://errol.oclc.org/laf/n82-54463+ .marcxml

  8. What’s Wrong with the Service? • Needs to be moved to standard protocols • Ranking could be improved • Links to OCLC not LC • Completeness • Sustainable?

  9. Ranking • Do ranking via multiple searches • Frequency information is critical, e.g. Shakespeare, William,$d1564-1616 should come first when looking for ‘Shakespeare’ • Batch processing and interactive are different

  10. Links to LC? • Need stable, reliable links • Stable • Cool URLs • Indirection needed • DNS, PURLs/Handles • Reliable • Needs to be essential to supplying institution • And/or support itself more directly • Basic service needs to be free

  11. Completeness • NACO authorities do not cover all authors • Name contribution is difficult • Non-NACO libraries • International, smaller • Quasi-library projects • Institutional repositories • Non-libraries • Museums, archives, eLearning

  12. Scenario • What’s the thesis overlap between ProQuest and OCLC? • Need to • Identify degree-granting institution for theses • Compare that information • Implies compatible identifiers for institutions • MARC Organization Codes? • NACO authority file? • Some other file?

  13. OCLC Symbol MARC Org Codes WorldCat Thesis ProQuest Org Codes NACO Authorities ProQuest Thesis Matching approach

  14. What won’t Work? • Not all institutions in NACO file • Granularity problems in matching • ProQuest doesn’t use NACO authorities

  15. Virtual International Authority File • Automatic matching of national-level authority files • Starting with LC and DDB • Provides links between systems • Uses bibliographic records to help matching • Participants will provide updates via OAI-PMH

  16. Using a Switching Service WorldCat Thesis OCLC Symbols ProQuest Thesis VAF NACO Authorities ProQuest Org Codes

  17. Proposed VIAF Facilities • Records • Links to contributing authority files • Information gleaned from bibliographic records • Stable URI • OAI-PMH • Harvest • Underlies stable URIs • SRW/U • Names, other text in records • Control numbers

  18. Echoes of the Semantic Web? • RDF is designed to declare this type of connection • ONESAC is using RDF/OWL • OPAC Network in Europe Shared Authority Control • Uses an RDF structure • Imports • MARC records • RDF/XML • Uses RDF-OWL (Web Ontology Language) to maintain relationships • See: http://www.portia.dk

  19. Thank you T. Hickey http://errol.oclc.org/laf/n82-54463.html ALA LITA-ALCTS CCS ACIG 2005 June 26

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