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Shifting keys – how words matter in 21 st century discoverability Anna Gifford

Shifting keys – how words matter in 21 st century discoverability Anna Gifford. Agenda. Defining controlled vocabularies Case studies Language and discoverability Controlled vocabularies in the 21 st century. What is a controlled vocabulary?.

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Shifting keys – how words matter in 21 st century discoverability Anna Gifford

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  1. Shifting keys – how words matter in 21st century discoverabilityAnna Gifford

  2. Agenda • Defining controlled vocabularies • Case studies • Language and discoverability • Controlled vocabularies in the 21st century

  3. What is a controlled vocabulary? A controlled vocabulary is a managed set of terms used in a particular context to aid or enhance discovery

  4. What is a controlled vocabulary? A controlled vocabulary is a managed set of terms used in a particular context to aid or enhance discovery

  5. What is a controlled vocabulary? A controlled vocabulary is a managed set of terms used in a particular context to aid or enhance discovery

  6. What is a controlled vocabulary? A controlled vocabulary is a managed set of terms used in a particular context to aid or enhance discovery

  7. What is a controlled vocabulary? A controlled vocabulary is a managed set of terms used in a particular context to aid or enhance discovery A controlled vocabulary is a managed set of terms used in a particular context to aid or enhance discovery organisation finding re-use sense-making

  8. Glossaries Simple controlled vocabularies

  9. Simple controlled vocabularies • Authority files

  10. Taxonomies • Structure and hierarchy • Used for navigation • Parent/child relationships

  11. Ontologies • Knowledge organisation systems • Organising concepts rather than things Source: http://www.cyc.com/cycdoc/upperont-diagram.html

  12. Thesauri • Structured vocabularies used in: • Description • Labelling • Metadata • Greater structural complexity • Defining / scope • Synonyms • Hierarchical • Relational

  13. Thesaurus entry example Personnel evaluation AD Jan 84 SN Judging employee value, competence, productivity, work quality, etc., using previously established objectives or standards, for decisions concerning selection, classification, placement, promotion, merit salary increases, etc. UF Employee evaluation Performance appraisal (Personnel) Staff evaluation Worker evaluation BT Evaluation NT Administrator evaluation Counsellor evaluation Teacher evaluation RT Assessment centres (Personnel) Competence Dismissal (Personnel) Employment qualifications Informal assessment Job performance Job placement Job skills Management by objectives SC 630 Labour and employment Personnel evaluation AD Jan 84 SN Judging employee value, competence, productivity, work quality, etc., using previously established objectives or standards, for decisions concerning selection, classification, placement, promotion, merit salary increases, etc. UF Employee evaluation Performance appraisal (Personnel) Staff evaluation Worker evaluation BT Evaluation NT Administrator evaluation Counsellor evaluation Teacher evaluation RT Assessment centres (Personnel) Competence Dismissal (Personnel) Employment qualifications Informal assessment Job performance Job placement Job skills Management by objectives SC 630 Labour and employment

  14. Case study: Australian Thesaurus of Education Descriptors • Formal thesaurus used for description and discovery in a range of databases, most notably the Australian Education Index • Based on ANSI/NISO thesaurus standard • 1st edition: 1984 • 2nd edition: 1996 • 3rd edition: 2003

  15. Case study: Australian Thesaurus of Education Descriptors • 4th edition in preparation • Update and terms sourced from: • User feedback • Structural review • Usage • Identifiers • Other thesauri

  16. Time for semantics • Topic maps – capturing the exact relationships between the concepts

  17. “Personnel evaluation [ATED] • BT – Evaluation – the application of evaluation to a specific group (personnel) • NT – Administrator evaluation – the application of personnel evaluation to a specific group (administrators) • RT – Job skills – criteria by which personnel evaluation is achieved

  18. Topic maps Source: http://www.grahamwideman.com/gw/xm/index.htm

  19. Language and discovery

  20. User language & changing literacies

  21. The user regains control • Folksonomies • user-generated ‘controlled’ vocabulary • used for categorisation and navigation • The authors are the users / the authors are the users

  22. Folksonomies continued • The good side • dynamic • user-generated language • The less good side • plurals • duplication • polysemy • synonyms • structure-less

  23. Case study: Somazone tag cloud

  24. Case study: Somazone tag cloud

  25. Case study: Australian AOD thesaurus

  26. A proposed thesaurus • Modify the AOD Thesaurus to bring it closer to local contexts and issues • Incorporate user language within the structure • Retain a capability for linkage with LC subject headings to preserve interoperability and data sharing • Implement into the DrugInfo Library catalogue • Roll out across websites

  27. Technical language • cannabis, methamphetamine, gamma-hydroxy butyrate Common language • marijuana, crystal meth, GHB Slang • dope, mull, weed, ganja, ice, grievous bodily harm, fantasy, liquid E, blue nitro…

  28. Are controlled vocabularies still useful? Source: http://paulstamatiou.com/thoughts-on-the-future-of-the-web

  29. Controlled vocabularies 3.0 and discovery

  30. Thank you… Anna Gifford Resource Centre Manager Australian Drug Foundation p. +61 3 9278 8121 e. anna@adf.org.au twitter: @brunniegirl

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