Vuorikari Multilingual Tagging behaviour by teachers

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This work presents an early exploratory study of the production and consumption
of multilingual tags in a European educational K-12 context. The data, produced
by teachers bookmarking and tagging learning resources during three month
period, was analysed. The results of this early study suggest that some tags are found as useful as thesaurus terms and that users are divided about the benefits of
multilingual tags. As some tags are useful for some users, “hiding all but the right
tags” becomes crucial for the success of a multilingual collaborative tagging
system.

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Vuorikari Multilingual Tagging behaviour by teachers

  1. 1. Analysis of User Behaviour on Multilingual Tagging of Learning resources Riina Vuorikari1, Xavier Ochoa2, and Erik Duval1 1 Katholieke Universiteit Leuven, 2 Information Technology Center, Escuela Superior Politecnica del Litoral,
  2. 2. Data source Calibrate project (http://calibrate.eun.org) ● K-12 digital learning resources ● in different curriculum areas ● 78 pilot schools in Hungary, Austria, Estonia, ● Czech Republic, Lithuania and Poland
  3. 3. Let's learn more about multi- lingual tagging! Collaboratively tagging and bookmarking ● was going to be central for a new project MELT – Metadata Egology for Learning ● Technology (http://info.melt-project.eu/) Idea of getting the best of ● Structured metadata by experts – End-user generated annotations – But what about the use of tags in many ● different languages?
  4. 4. Data source 1 January 24 to April 21 2007 ● 77 teachers /173 total participating ● 459 bookmarks ● 417 multilingual tags ● 320 different learning resources ●
  5. 5. Data source 2 June 2007 ● 13 focus group teachers of the MELT project ● Test on the descriptiveness and usefulness ● of keywords for 5 LOs 20 English thesaurus terms ● 39 multilingual tags (11 in Hu, 7 in De, 7 in ● En, 6 in Pl, 4 in Et, 1 in Fi)
  6. 6. Distribution of bookmarks Average: 6 bookmarks ● Wide distribution: ● 10% “Super users” – more than 20 15% 20-6 bookmarks – 45% 6-2 bookmarks – About 30% only – experimented (1)
  7. 7. Language analysis Out of 417 tags many were with multiple ● terms, when separated we found 585 terms 1/3 in Hungarian ● 26% in English, even though none of the ● users were native English speakers 1/3 in German and Polish ●
  8. 8. Language analysis The language was right in about 70% of ● cases (from the interface), and found out that... ...users tag in many different languages: ● at the same time (e.g. Baum, arbre, tree) – at different times (once in Pl, other times in En) – use the interface in different languages (seems – like not only to test)
  9. 9. Btw, what do other sites do? del.icio.us, Yahoo.fr, MyWeb.Yahoo.uk, ● blogmarks.net, MisterWong.de... Two different ways to deal with multiple ● languages can be observed; ones taken care of by users (i.e. crowd- – sourcing”) others where the system supports multiple – languages to certain extent
  10. 10. Does the language matter? Need for better ways to identify the language ● Give rules (if the user first preferred languages is.., then..) – Automate the recognition of languages – Out-source it to users –
  11. 11. Semantic analysis Factual tags 63% ● (Golder: item topics, kinds of item, category refinements) Subjective tags 29% ● ( Golder: item qualities) Personal tags 3% ● (Golder: item ownership, self- reference, tasks organisation) 5% other ● Sen et al. (2006). ●
  12. 12. Why tag categories? In Sen et al. (2006) ● it was found that tags of different categories can be useful for different tasks In our case it is too ● early to say anything, but ...we'll have an eye on it!
  13. 13. “Travel well” tags About 13% of tags contain a general term, a ● name, place e.g. EU, Euroopa, Euroopa, Europa, europe, ● geograafia, Pythagoras, etc. We hypothesise that this type of tag can be ● well understood without translation, so we call it “travel well” tag
  14. 14. So do users find tags useful? Better question might be, do users find ● keywords useful; Descriptive, and – help users with the potential use of it? – Somewhat... ● ..35% of the keywords (both thesaurus and ● tags) were found descriptive and 27% were found helpful to the use of the resource.
  15. 15. Devil is in the details...
  16. 16. Usefulness of tags.. Overall, the thesaurus terms performed ● better than the tags, However, it can be argued that tags, after all ● being produced with no outlay, showed an overall encouraging and potential gain in overall usefulness!
  17. 17. What's the point of travel well tags? If those tags need no translation or language ● filtering to be understood, and .. ..if they can be identified ● We can be sure to show at least some tags ● to users whose language preferences we don't know, and – in which language there are no tags or keywords – available.
  18. 18. So what is needed? HIDE ALL BUT THE RIGHT STUFF! ● In the tagging interface (guided tagging) ● Show tags in all languages? – Show only travel well tags? – Show only tags in users' preferred languages – While viewing the tags ● In a tag cloud – For social navigation (resource-user-tag) – Q: does the system translate tags or only when a – user-given translation exist?
  19. 19. Future studies Similar language and semantic analysis are ● planned for a more thorough data in 2008 Moreover, our goals are to find out: ● How do users use the tags (e.g. language and – tag convergence) ? How are tags and the relation resource-tag-user – used for discovery? Identify teachers information seeking tasks and a – best fit for a retrieval system.

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