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Facets and Tagging

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A talk I gave at the IA Summit 2006 about facets and tagging, and how to combine them

A talk I gave at the IA Summit 2006 about facets and tagging, and how to combine them

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  • I build a website that tries to make video more findable over the past year, and I got the chance to try some experiments with tagging systems. For this talk, I also interviewed people from Flickr, Delicious, … This talk is all about how we can make tagging more useful by adding *some* structure.
  • Transcript

    • 1. Tags and facets, tags and languages. Peter Van Dijck http://petervandijck.net
    • 2.  
    • 3. Challenge: Findability of long tail video
      • An unsolved problem.
      • Video eats attention.
    • 4.  
    • 5.  
    • 6. A few principles:
      • Always be easy . Entering a tag should stay simple.
      • The work of the few impacts many. Wikipedia is edited mostly by a small group of people.
      • Babysteps : A little semantics goes a long way. Leverage it.
    • 7.  
    • 8.  
    • 9.  
    • 10. We plan to let users select facets here.
    • 11.  
    • 12. Refine by: People: Ilse (12) Johnny (3) Peter (3) Jay Dedman (4) Event: Vloggercon (12) Gates (8) Language: English (230) Spanish (8)
    • 13. What we didn’t do
      • There were a lot of options and possibilities to add structure and semantics.
      • We kept it simple: a tag has only 1 facet – which is the same for all users.
      • Users can’t select facets just yet.
    • 14. What we did:
      • Add minimal structure : tag has a parent-id.
      • Add semantics : Place, Language, Event, People, Topic.
        • You can’t let users create facets and keep their facet-ness.
    • 15. (Who is cindy sheenan?) Movies with: Cindy and Ilse (12) Cindy and Johnny (3) Cindy and Peter (3) Cindy and Jay Dedman (4) Event: Vloggercon (12)
    • 16.  
    • 17. Even more leverage …
    • 18.  
    • 19.  
    • 20.  
    • 21. 3 levels of leveraging semantics
      • The fact that parents are facets means we can use faceted browsing. (Regardless of the content of those facets.)
      • The content of the facets (people, …) lets us customize the UI and provide additional structure around each. (Events on a timeline, pictures of people, …)
      • We can also infer (guess) more information from the semantics and an algorithm of relatedness (“Gates happened in Central Park”).
    • 22. All this from the simplest of structures and a sprinkling of semantics Parent Tag “ People” “Places” “Events”
    • 23. Some trickyness follows…
    • 24.  
    • 25.  
    • 26. Semantic crashes
      • Conclusion: careful with duplicate semantics in the system.
    • 27. Localizing the folksonomy
      • Should we even translate folksonomies?
      • Tags seem to work better when they’re in limited communities, “tag namespaces”.
    • 28.  
    • 29. The plan for Mefeedia:
      • Don’t translate tags.
      • Don’t copy tags – new language = new community. Possible complaints:
        • “ My tags don’t show up in the Spanish version”.
      • I could perhaps use names (“People”) in multiple languages (that have Latin charsets). => Semantics might help with localization.
    • 30. Other approaches …
    • 31.  
    • 32.  
    • 33. For geography: <a href=&quot;http://www.edgeio.com/tag/zip:94301&quot; rel=&quot;tag&quot;>94301</a> <a href=&quot;http://www.edgeio.com/tag/city:Palo%20Alto&quot; rel=&quot;tag&quot;>Palo Alto</a> <a href=&quot;http://www.edgeio.com/tag/country:USA&quot; rel=&quot;tag&quot;>USA</a>
    • 34. What people are doing
      • Providing “generic” data structures for users (Del.icio.us).
      • Semantics through algorithms (Flickr).
      • Define certain tags or structure (taxonomy) through clustering algorithms (Edgeio)
    • 35. I notice …
      • A hesitance against hardcoding semantics . (“It won’t scale”)
      • A hesitance against manual work (“It won’t scale”)
    • 36. What I learnt
      • Mix it up. A small amount of semantics, on top of minimal structure, with a little manual work, can work wonders.
    • 37. References
      • [email_address]
      • http://petervandijck.com
      • http://mefeedia.com
      • http://mefeedia.com/labs-infer/infer.php
      • http://www.everything2.com/
      • http://bailando.sims.berkeley.edu/flamenco-metadata-guide.html