Comtella

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Comtella

• Julita Vassileva
• University of Saskatchewan

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Community

• Small, custom-made for particular purpose
• Sharing academic papers within a research lab -
  2002
• Sharing URLs of papers or code related to a class
  (Ethics and IT, multi-agent systems, distributed
  programming) 2003, 2004, 2005
• Sharing academic papers within the UM community
  2005
• Sharing experience among girls and women about
  Science and Engineering 2006
• Allows
• Sharing resources (papers, URLs, blogs) on
  particular topics ? called sub-communities in
  the last two deployments
• Viewing, rating and commenting these resources
• Discussion on each topic with reference to the
  resources

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How the Incentives Work

• User status (membership) depends on earned
  points.
• Points are earned by
• Contributing new links (depending on their
  quality)
• Rating other links (depending on the ratings
  quality)
• Status - weighted sum of the points earned with
  each activity.
• The weights are dynamic and depend on the current
  needs of the community (community model) and on
  the individuals history (user model)
• The current values are shown to the user,
  together with what is expected from him/her
• Status is shown in a community visualization

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How Incentives Work

• Rewards for rating - C-points
• Earned with each act of rating
• Can be invested to sponsor own links (like
  Googles sponsored links)
• Decay over time
• Limited number of ratings to give out
• To avoid inflation
• Number depends on the users status

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Claims and questions

• The users behavior can be dynamically
  orchestrated (at least partially) by
• providing explicit rewards for desired user
  activities and
• adapting the rewards according to what activities
  are currently needed most by the community.

• What should be the score?
• Is it enough to keep participation within certain
  boundaries to ensure Sustainability ?
• Can these boundaries be known?

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back
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