Enhancing Collaborative Tagging Systems Through Synonym Control


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  • Enhancing Collaborative Tagging Systems Through Synonym Control

    1. 1. 4004 acm ajax collaborative enhancing animatedgif apache applescript art articles awareness Backup benchmark bibliography bibtex blog books browser bugtracking bwl cassette censorship chair collaborative china citation classification client cms code community tagging systems conference controlled vocabulary convert costumes cover css customization dashboard database del.icio.us delicious through design development Lukas Gwardak dpi e-book e-mail emulator engelbart faq file firefox folksonomy fon framework synonym free google graph graphics hack hacks hardware hci history htaccess control html icons id interaction javascript jobmarket jobs lafonera lamp latex
    2. 2. Agenda <ul><li>Information Organization </li></ul><ul><li>Metadata </li></ul><ul><li>Collaborative tagging </li></ul><ul><li>Benefits & drawbacks </li></ul><ul><li>Solution proposal </li></ul><ul><li>Prototype demo </li></ul><ul><li>Findings & Conclusion </li></ul>
    3. 3. Information Organization <ul><li>Traditionally driven by Librarians </li></ul><ul><li>Classification Systems </li></ul><ul><ul><li>Controlled Vocabularies </li></ul></ul><ul><ul><li>Hierarchical structure </li></ul></ul><ul><ul><li>Maintained by professionals </li></ul></ul><ul><li>Good at accuracy (research) </li></ul><ul><li>Bad at scaling up (web) </li></ul>
    4. 4. Information Organization WWW (11.5 B documents 1 ) LCSH (5 volumes) 1 Gulli, A. Signorini, A. (2005): The Indexable Web is more than 11.5 billion pages ?
    5. 5. Information Organization
    6. 6. Metadata <ul><li>Data about data </li></ul><ul><li>Surrogate for real objects </li></ul><ul><li>(Mostly) manual extraction </li></ul><ul><li>Author- or editor-based </li></ul>
    7. 7. Metadata Author: Douglas Adams Title: The Hitchhiker‘s Guide To the Galaxy Year: 1979 Genre: Science-Fiction Publisher: Megadodo Publications Pages: 320 Cover: Paperback ISBN: 978-0345391802
    8. 8. Metadata Artist: Miles Davis Album: Kind of Blue Year: 1959 Genre: Jazz Label: Columbia Duration: 55‘21 Mastering: AAD
    9. 9. Metadata File Size: 527.707 Bytes File Type: JPEG Manufacturer: Canon Model number: PowerShot G3 Image orientation: Top, left Resolution (width): 72 ppi Resolution (height): 72 ppi Exposure time: 1/200 s f number: 3,2 Date & time of image: 2005:11:19 16:19:01
    10. 10. Metadata <HTML> <HEAD> <META name=&quot;DC.date&quot; content=&quot;2007-01-12&quot; /> <META name=&quot;DC.subject&quot; content=&quot;Art photography&quot; /> <META name=”DC.authors” content=”Lukas Gwardak” /> <META name=”DC.keywords” content=”photo, art, camera” /> ...
    11. 11. Collaborative Tagging <ul><li>Make the users contribute metadata! </li></ul><ul><li>Tags = labels = simple keywords </li></ul><ul><li>No controlled vocabulary </li></ul><ul><li>No hierarchy </li></ul><ul><li>Simple, Fast, Intuitive </li></ul><ul><li>Driven by incentives to find own resources and discover new ones </li></ul>
    12. 13. Collaborative Tagging <ul><li>Versatile & Instantly Extensible </li></ul><ul><li>Democratic / Community-based </li></ul><ul><li>Instant discovery of Related Information </li></ul><ul><li>Various application domains: </li></ul><ul><ul><li>Social Bookmarking </li></ul></ul><ul><ul><li>Content management </li></ul></ul><ul><ul><li>Site Navigation </li></ul></ul>
    13. 14. Social Bookmarking <ul><li>Store your bookmarks online </li></ul><ul><li>Share your bookmarks with others </li></ul><ul><li>Assign tags to your bookmarks </li></ul><ul><li>Find your bookmarks using tags </li></ul><ul><li>Find related bookmarks </li></ul><ul><li>Subscribe to tags </li></ul>
    14. 17. Identified problems with CT <ul><li>Lack of Structure </li></ul><ul><li>Language variability </li></ul><ul><li>Arbitrariness, no synonym control </li></ul><ul><li>Recall / Precision </li></ul><ul><li>Tag spam </li></ul><ul><li>Privacy issues </li></ul>
    15. 18. Synonym Control Blog blogger blogging blogs bookmarks bookmark bookmarking tagging tags reference howto
    16. 19. Demo
    17. 20. Field Study <ul><li>4 weeks field study </li></ul><ul><li>Over 200 participants </li></ul><ul><li>80 distinct tags </li></ul><ul><li>15 synonym groups </li></ul><ul><li>Feedback from end-users and experts </li></ul>
    18. 21. Findings & Conclusion <ul><li>Synonym-based suggestion works! </li></ul><ul><li>Findability CAN be improved </li></ul><ul><li>Room for improvement: </li></ul><ul><ul><li>Better interaction design </li></ul></ul><ul><ul><li>Create incentives for more accuracy </li></ul></ul><ul><ul><li>Integration of a lexical database </li></ul></ul><ul><ul><li>Private synonyms? </li></ul></ul>
    19. 22. Thank you!