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

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  • EnTag Feb 2008 CETIS

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

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