The document discusses tag clouds and issues with their design and usage. It summarizes interviews with web developers who created tag clouds. Many saw tag clouds as a fun way to represent tags but were unaware their standard alphabetical ordering. Developers hoped tag clouds would signal the presence of tags and provide an overview of site topics, but users had trouble understanding them.

1. Some Thoughts on Tagging Marti Hearst UC Berkeley

4. Example from del.icio.us

11. Faceted Navigation and Flamenco

14. The Problem With Hierarchy start salmon bat robin wolf feathers fur scales fur scales feathers fur scales feathers … Covering: swim fly run slither Locomotion: fish rodents insects fish rodents insects fish rodents insects fish rodents insects fish rodents insects fish rodents insects fish rodents insects fish rodents insects fish rodents insects Diet: otter

19. The Flamenco Interface Fine Arts Museum Example

38. How to Create Facet Hierarchies? Our Approach: Castanet (Stoica & Hearst, to appear at HLT-NAACL ’07)

39. Example: Recipes (3500 docs)

40. Castanet Output (shown in Flamenco)

41. Castanet Output (shown in Flamenco)

42. Castanet Output (shown in Flamenco)

43. Example: Biology Journal Titles Castanet Output (shown in Flamenco)

46. 2. Get Hypernym Path red blue chromatic color abstraction property visual property color red, redness abstraction property visual property color blue, blueness chromatic color Documents WordNet Get hypernym paths Select terms Build tree Comp. tree

47. 3. Build Tree red blue Documents WordNet Get hypernym paths Select terms Build tree Comp. tree chromatic color abstraction property visual property color red, redness abstraction property visual property color blue, blueness chromatic color red blue abstraction property visual property color red, redness chromatic color blue, blueness

48. 4. Compress Tree Documents WordNet Get hypernym paths Select terms Build tree Comp. tree red, redness color red chromatic color blue, blueness blue green, greenness green green red color chromatic color blue

49. 4. Compress Tree (cont.) red color chromatic color blue green color red blue green Documents WordNet Get hypernym paths Select terms Build tree Comp. tree

50. 5. Divide into Facets Divide into facets

56. Example Photos & Captions (King & Towle) very scary x-mas tree Hp presentation chasing a cat in the dark My cat

59. What’s up with Tag Clouds? What does a typical tag cloud look like?

62. flickr’s tag cloud

63. del.icio.us

64. del.icio.us

65. blogs

67. NYTimes.com: tags from most frequent search terms

68. IBM’s manyeyes project

69. Amazon.com: Tag clouds on term frequenies

91. Summary of Stated Reasons for Tag Clouds (Note: some refuted by studies)