A survey of tag cloud presentation techniques Mogens Nielsen June 6th 2007.
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Transcript of A survey of tag cloud presentation techniques Mogens Nielsen June 6th 2007.
A survey of tag cloud presentation techniques
Mogens NielsenJune 6th 2007
Introduction
• About tag clouds– What and why?
• Current presentation techniques• New presentation techniques• Proof of concept
Intention
• Show current presentation techniques• Show new presentation techniques• Discuss different presentation techniques• Show suggestions to second generation tag
clouds
Method
• Literature study• Read weblogs to find general interest in tag
clouds• Proof of concept to show an example of a
second generation tag cloud
Contribution
• Tag clouds are a new information visualization interface
• Still in the ”prototype” phase• More users and areas of implementation leads
to more needs for functionality• Many suggestions to new techniques• This paper will try to gather the available
information (create ”order” in the ”chaos”)
Current presentation techniques
• First generation tag cloud (from Flickr)
Current presentation techniques
• Some limitations of the first generation tag cloud– Alphabetical arrangement does not infer
relationships between tags– One or more topics tend to dominate the cloud
with their tags– Static; no implementation of time– No interactivity
New presentation techniques
• Clustering tags in the tag cloud• Time management• Interactivity
Clustered tag clouds
• Shows relations between tags• Limits the synonym problem of tagging
(folksonomies)• Less significant tags disappears• Tags with higher meaning emerge and thereby
reducing semantic density• The dominating topics are less dominating
Clustered tag clouds
Temporal tag clouds
• Ability to discover trends and emerging tags• Shorter popularity decay gives us a less static
tag cloud• Cloudalicious: Shows how a webpage is
tagged over time• Google Trends: Shows search trends on
Google• Flickr: Three stages of tag cloud time frame
Interactive tag clouds
• Allow the user to choose the presentation of the tag cloud at her choice
• Interactivity gives the user a greater impact on which information the tag cloud should visualize
• No interactive tag clouds– Delicious Tagrolls
Proof of concept
• PoC to show a vision of abilities in a second generation tag cloud
• Implements interactivity which enables the user– To choose time frame– To zoom
Conclusion
• Tag clouds are in the starting phase as information visualization interfaces
• New implementations and presentation techniques are needed
• This paper intends to– Create an order in the chaos– Show a vision of a second generation tag cloud
Demo and questions
Thank you for listening