Computersupported knowledge sharing in colocated environments

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Computer-supported knowledge sharing in
co-located environments

• Yasufumi Hirakawa, Harumi Mase,
• Eiji Tokunaga and Tatsuo Nakajima.
• Waseda University, Dep. of Computer Science

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Contents

• Introduction
• Problems
• Approaches
• Model about face-to-face knowledge sharing
• Scenario System for knowledge sharing
• Survey
• Survey results
• Future work
• Conclusions

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Introduction

• Our experiences can convert into digital data
• Pictures, Diaries(Blogs), Documents,Bookmarks,
  Web browsing histories, histories about using
  devices, and so on
• A ubiquitous computing environment has been
  realized
• progressing technologies for digitalize our
  experiences
• digital data has been increasing.
• Sharing users knowledge
• we often share digital data documents, show
  pictures...
• We can noticed new ideas

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Problems

• We must choose, store and edit the data.
• Need a lot of time
• e.g. presentation
• Increasing our data
• Ubiquitous computing environment
• sensors
• Limited ways of communications thorough a network
• difficult to communicate enough information
• gesture
• emotion
• you are angry, laughing or crying?
• reference term
• What do you indicate with the word, this?

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Approaches

• To realize sharing our knowledge fluently...
• We propose a system
• records and aggregates data automatically
• our system record and show data.
• doesnt limit ways of communication, and progress
  sharing user knowledge.
• Tabletop Display
• face-to-face communication

figure tabletop display
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Model about face-to-face knowledge sharing
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Scenario System for knowledge sharing
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Scenario System for knowledge sharing
Take a rest to change our thinking
They use Firefox browser that was installed a
extension to get web browsing histories and send
them to a remote server.
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Scenario System for knowledge sharing
There are four RFID Readers on the tabletop
display. Each Participant puts a personal device
embedded a RFID tag on the RFID Reader. Our
system authenticates tags, and get participants
data from a remote server. The system shows the
data on the table.
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Click!
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Take a rest to change our thinking
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Survey

• We conducted a survey
• at Embedded Technology 2005 Japan.
• Participants in the exhibition
• We explained our scenario with our prototype
  system
• In the form of a questionnaire
• based on three main issues
• 1) Whether our system is useful for users or not
• 2) What designs of merged experiments are
  suitable for users
• 3) What functions are required for fluent
  knowledge sharing in the system
• Informal observation of people using our
  prototype system

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Survey results

• We obtained 124 responses
• Users want to
• use our prototype system
• More than 80
• share web histories about
• news and new commercial goods.
• More than 50 users
• use our system
• with senior workers, bosses, their friends, their
  followers, junior subordinates...
• in office, school, restaurant...
• 75 of the users are uncomfortable to share their
  all experiences to others

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Survey results (contd)

• Users requested new functions
• use keywords for searching
• to notify whether you had already seen
• to extract link structures

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Future Work

• To extract relations between users web browsing
  histories and external websites
• The proper expression of merged experiences and
  maintaining privacy
• Automatic context sensing
• Support other digital data
• not only web browsing histories
• Support for building users experiences as
  digital data on tabletop display
• Implement the functions users requested

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Conclusions

• We proposed a system, face-to-face knowledge
  sharing using merged experiences that are
  automatically constructed from each users
  digital data.
• Face-to-Face knowledge sharing tended to be
  promoted by displaying merged experiences on a
  tabletop display.

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Thank you for listening.
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Conclusions

• We proposed a system, face-to-face knowledge
  sharing using merged experiences that are
  automatically constructed from each users
  digital data.
• Face-to-Face knowledge sharing tended to be
  promoted by displaying merged experiences on a
  tabletop display.

Questions?