The document discusses improving navigation and search of tagged content through faceted search with hierarchical tags. It proposes that RawSugar provides faceted search on tagged content by automatically merging user, expert and algorithmically generated tag hierarchies. This allows tags to serve as both facets and values for exploration and guided search of individual or aggregated tagged content sources.

1. Faceted Search for Tagged Content Better Navigation for Your Web

9. Faceted Search for Tagged Content Refine your search Food groups Locations groups Origins groups

14. Merging Expert, User and Automatic Hierarchies europe UK Scotland Edinburgh Spain Italy food vegetarian Sushi food cooking recipes Asian Chinese Thai Southwest California Bay Area San Francisco Texas Expert 1 User 2 User 3 Automatic 22 Automatic 5

18. Backup slides

19. Why Faceted Search? Improved Exploration - morphology Locations Restaurant Type Not a restaurant!

20. Why Faceted Search? Improved Exploration - Not usable !

21. References Rashmi Sinha: “ Tag Sorting: Another tool in an information architect's toolbox” http://www.rashmisinha.com/archives/05_02/tag-sorting.html Emanuele Quintarelli: “ Hierarchical taxonomies from flat tag spaces” http://www.infospaces.it/wordpress/topics/information-architecture/91 Paul Heyman (Stanford): “ Tag Hierarchies ” http://i.stanford.edu/~heymann/taghierarchy.html Brooks, Montanez, University of San Francisco: “ Improved Annotation of the Blogopshere via Autotagging and Hierarchical Clustering ” http://www.cs.usfca.edu/~brooks/papers/brooks-montanez-www06.pdf Siderean fac.etio.us: “ Faceted search on delicious tags ” http://www.siderean.com/delicious/facetious.jsp Marti Hearst: “Clustering vs. Faceted Search ” http://bailando.sims.berkeley.edu/papers/cacm06.pdf