This document discusses how tag clouds can be used for navigation and discovery of content in learning management systems (LMS). It outlines some of the benefits of tag clouds such as providing an overview of concepts and related content in a less rigid way than categories. It also describes how tag clouds can be personalized based on a user's interests and activities. Additionally, it addresses common problems with tag clouds and provides solutions, such as using logarithmic scaling to handle tag weights and WordNet to resolve synonyms.

1. Tag Clouds and Learning Timothy Potter Xerceo, Inc.

2. Example Cloud

4. Motivation?

5. Typical LMS Navigation Tools

6. Tag Cloud to the Rescue?

7. Tag Cloud Properties Font size & color indicates popularity Popularity has several dimensions - Number of Tagged Objects (all time vs. timespan) - Number of clicks on a tag (hot topic) Tip: You can have your own weighting criteria!

9. Tag Cloud Navigation Each Tag in the Cloud is a Link

10. Tag Cloud Navigation Click on a tag and the cloud “pivots” around the selected tag … only tags that occur with the pivot are shown.

11. Tag Cloud Navigation

14. Relevance based Sorting

17. Common Problems

19. Personalized tag cloud

22. How do tags get created?

24. End User Tagging in Action