Facets and Tagging


Published on

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

Published in: Health & Medicine, Travel
No Downloads
Total Views
On Slideshare
From Embeds
Number of Embeds
Embeds 0
No embeds

No notes for slide
  • 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.
  • Facets and Tagging

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