ACM Research Fair

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(No Transcript)
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Columbia Hypermedia IMmersion Environment

• CHIME

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Motivation

• Even small projects may involve hundreds of
  artifacts, a dozen or more participants dispersed
  across multiple sites, and complex workflows
• Sheer volume and heterogeneous repositories make
  it difficult to find what one needs to do ones
  work, or to understand relationships among
  artifacts and tasks
• Conventional WYSIWIS and desktop
  videoconferencing groupware dont scale
• Hard for new project members to come up to speed
  or existing project members to coordinate

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Approach

• Multidisciplinary
• Multi-User Domains (MUDs)
• Open Hypermedia Systems
• 3D Visualization
• Web Technologies
• 3D virtual world incrementally laid out from
  information structure and dependencies, and/or
  project process
• Artifacts reside in their original repositories
  and are manipulated with the original tools, only
  metadata extracted
• New team members collaborate with old-timers
  who may be in different physical locations but
  same virtual space
• Users are aware, not just of other users
  presence, but of what theyre currently doing
  with which artifacts

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Theme Manager
Client
Client
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Challenges

• Groupspace data strewn across remote
  repositories
• How to generate appropriate structural metadata,
  and map to container, connector and component
  subtypes
• Artifacts added, modified, deleted, merged,
  split, moved
• How to automatically detect changes and reflect
  incrementally in groupview layout and content
• Complexity of underlying project
• How to design an information immersion theme
  that provides a useful spatial metaphor intuition

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Projects

• Rewrite 3D client (e.g., using game engine)
• Multimedia support (e.g., streaming video on room
  wall)
• Peeking into adjacent rooms, corridors, etc.

• Rewrite or replace Data Service
• Integrate external tools and other behaviors
  (e.g., bots)
• Seamlessly morph virtual world as backend data
  changes

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Kinesthetics eXtreme - KX
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Motivating Scenario Run-time monitoring and
repair of arbitrary distributed systems
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Oops
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Lets probe into this
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Package things up
raw events
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Check things out
raw events
Smart Events
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Hmm this doesnt look right
raw events
Smart Events
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Get the word out
raw events
Smart Events
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Gauging whats up
raw events
Smart Events
Smart Events
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Send out the gaugents
raw events
Smart Events
Smart Events
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Reconfigure
raw events
Smart Events
Smart Events
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Yes!
!
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Challenges

• CHIME 3
• Apply KX to monitoring backend data changes and
  then morphing client world views for live users
• Adaptive Interactive Internet Team Video (AI2TV)
  with Profs. John Kender and Jason Nieh
• Apply KX to variable-bandwidth synchronizing of
  streaming video for team distance learning
• Workgroup Cache
• Group-oriented prefetch/push rules to reduce
  latency and propagate knowledge for both CHIME
  and AI2TV

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Projects

• Flexible XML (FleXML) relaxations of XML for
  smart events and information objects
• Complex event pattern notations/recognizers
  addressing distributed computing protocols and
  temporal relationships
• Worklet mobile agents for deploying/updating
  probes, gauges, event patterns, etc.

• Decentralized workflow management for
  worklet/gaugent coordination
• Prefetching, pushing and search contextualization
  models and algorithms
• WHEATIES (Wimpy HandhEld-Accessible Tracking,
  Identification and Error correction System) KX
  for PDAs

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