Online Chat Visualization

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Online Chat Visualization

• Mahesh B Mungara

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Chatting With A Purpose

• Lack of support for chatting with a purpose
• Three major requirements
• -Need of Chat History
• -Importance of Establishing Common ground
• -Anonymity and awareness issues etc
• Yahoo Monsters Inc. IMVironment example

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Chat History in VS

• Why Chat History becomes important in VS?
• Puts the current chat in context
• Establishment of Common Ground
• Late joiners
• Help Teachers Evaluate students

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Features Of The Current Tool

• Transcribing the chat logs
• Use of scrollbar to visualize them
• Fisheye views-navigating through info mural
• Topic searches and multiple searches
• Dynamic searches
• Sender information
• Overview of who spoke how much

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Pros Cons

• Overview detail
• Use of empty space in scrollbar
• Integration of chat history into the chat window
• Effective topic searches that help identify items
  of interest in the chat history
• Dynamic searches that obviate the necessity of
  explicit searching
• Encoding of sender information
• Implementation issues
• Scale issues

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Scale Issues

• People scale-2 pixels per person
• Message scale(fares well)
• Each overlap accounts for 400 messages
• With gray scale shading 256400102400
• Average number of messages for 1 to 1 chat
• 3 messages per minute
• So supports non-stop chatting for 20 days
• Use of multi-level zooming techniques

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Future Work

• Dynamic searches based on topic databases
• Dynamic building of topic databases
• Using length of lines to indicate message
  importance
• Building topic threads basing on dynamic searches
• Imposing semantic structure on the Chat history
• Incorporating timing information

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• Many Thanks to Dr.McCrickard and Dr.North
• Questions????????