Transcript Designing Cyberspace using the Architectural Design Metaphor

SITUATED AGENTS
Situatedness
Basic Ideas
Interaction not just encoding
Construction not just recall
Cognitive Science
Dewey (1896): “Sequences of acts are composed such that
subsequent experiences categorize and hence give
meaning to what was experienced before.”
Gero (1998): “where you are when you do what you do matters”
Experimental Studies
Schön and Wiggins (1992): “interaction of making and seeing”
Suwa, Gero and Purcell (1999):
“Sketches serve as a physical setting in which design
thoughts are constructed on the fly in a situated
way.”
John S Gero Agents – Situated Agents
Where you are when, matters
John S Gero Agents – Situated Agents
John S Gero Agents – Situated Agents
John S Gero Agents – Situated Agents
What you focus on matters
John S Gero Agents – Situated Agents
John S Gero Agents – Situated Agents
John S Gero Agents – Situated Agents
What you are looking for affects what you
see
John S Gero Agents – Situated Agents
No unique representation of world,
depends partly on your expectations
John S Gero Agents – Situated Agents
Constructive Memory
SITUATION
EXPERIENCE
MEMORIES
John S Gero Agents – Situated Agents
Constructive Memory
John S Gero Agents – Situated Agents
SITUATEDNESS: An interaction of
different worlds
Action
Expected
World
pull
Interpreted
World
push
Hypothesizing
Interpretation
John S Gero Agents – Situated Agents
External
World
Constructing a Cognitively-Based
Situated Agent
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John S Gero Agents – Situated Agents
LTM
Agent with STM
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John S Gero Agents – Situated Agents
LTM
Learning agent with STM and LTM
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John S Gero Agents – Situated Agents
LTM
SITUATED SIMULATION
• Simulating doors
Situated social force model
Pedestrians try to move as efficiently as possible to a
destination.
Pedestrians try to maintain a comfortable distance from other
pedestrians.
Pedestrians try to maintain a comfortable distance from
obstacles like walls.
Pedestrians may be attracted to other pedestrians or objects.
pedestrian
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obstacle
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destination
attraction
repulsion
John S Gero Agents – Situated Agents
Narrow door
QuickTime™ and a
decompressor
are needed to see this picture.
John S Gero Agents – Situated Agents
Wide door
QuickTime™ and a
decompressor
are needed to see this picture.
John S Gero Agents – Situated Agents
Two doors
QuickTime™ and a
decompressor
are needed to see this picture.
John S Gero Agents – Situated Agents