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EnTag Feb 2008 CETIS

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Presentation of the EnTag project by Kora Golub at the JISC CETIS MDR SIG meeting on 2008-02-12

Presentation of the EnTag project by Kora Golub at the JISC CETIS MDR SIG meeting on 2008-02-12

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Transcript

  • 1. UKOLN is supported by: EnTag: Enhanced Tagging for Discovery Koraljka Golub, UKOLN CETIS MDR SIG, Birkbeck, 12 February 2008
  • 2. Project context
    • Partners
      • UKOLN
      • University of Glamorgan
      • STFC
      • Intute
      • Non-funded
        • OCLC Office of Research, USA
        • Danish Royal School of Library and Information Science
    • Period: 1 Sep 2007 -- 31 Aug 2008
  • 3. Background
    • Controlled vocabularies improve information retrieval and discovery
      • But, costly to index with, especially the amount of digital documents
    • Social tagging holds the promise of reducing indexing costs
      • But, tags entirely uncontrolled
      • Still, may identify new trends and hot concepts
  • 4. Purpose
    • Investigate the combination of controlled and folksonomy approaches to support resource discovery in repositories and digital collections
    • Aim
      • Investigate whether use of an established controlled vocabulary can help move social tagging beyond personal bookmarking to aid resource discovery
  • 5. Objectives
    • Investigate indexing aspects when using only social tagging versus when using social tagging in combination with a controlled vocabulary
    • Investigate above in two different contexts: tagging by readers and tagging by authors
    • Investigate influence of only social tagging versus social tagging with a controlled vocabulary on retrieval
  • 6. Overall approach
    • Main focus:
      • free tagging with no instructions
      • versus
      • tagging using a combined system and guidance for users
    • Two demonstrators
      • Intute digital collection http://www.intute.ac.uk
        • Major development
        • Tagging by reader
        • DDC
      • STFC repository http://epubs.cclrc.ac.uk/
        • Complementary development
        • Tagging by author
  • 7. Intute demonstrator: searching
  • 8. Intute demonstrator: basic tagging
  • 9. Intute demonstrator: enhanced tagging
  • 10. EnTag: Intute user study (I)
    • Test: comparison of basic and advanced system:
      • Indexing
        • Perspective, specificity, exhaustivity
        • Linguistics (word class, single word/compound, spelling, language )
        • Consistency
        • Efficiency (time used, user satisfaction)
        • Use (tags selected, clouds consulted, order of consultation)
      • Retrieval
        • Degree of match between user and system terminology
          • user tags, DDC tags, controlled Intute keywords, title terms, text terms
  • 11. EnTag: Intute user study (II)
    • Test setting
      • 50 graduate students in political science
      • 100 documents, covering up to four topics of relevance for the students
    • Data collection
      • Logging
      • Pre- and post-questionnaires
  • 12. EnTag: More info
    • Results > August 2008
    • http://www.ukoln.ac.uk/projects/enhanced-tagging/