ACT-R/S: Extending ACT-R to make big predictions. Christian Schunn, Tony Harrison, Xioahui Kong, Lelyn Saner, Melanie Shoup, Mike Knepp, … University of Pittsburgh. Approach. Combine functional analysis Computational level (Marr); Knowledge level (Newell); Rational level (Anderson)
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ACT-R/S: Extending ACT-R to make big predictions
Christian Schunn, Tony Harrison,
Xioahui Kong, Lelyn Saner,
Melanie Shoup, Mike Knepp, …
University of Pittsburgh
Combine functional analysis
with neuroscience understanding
to build a spatial cognitive architecture for problem solving
- object identification
- grasping & tracking
Traditional “what” system
Traditional “where” system
Visual input of nearby chair
=> Allocentric view points must be inferred (computed)
from Muller, 1984
from Burgess, Jackson, Hartley & O’Keefe 2000
• Configural representation (vectors) supports lowest level navigation - but defines an infinite set of locations
• Configural relationship (between two) establishes a unique location in space
• Stable fields are a function
of regularities in the
learned attending pattern.
• Multiple passes through
same region will reactivate
configural relation chunk.
• Multi-modal peaks likewise
influenced by goal (same
landmarks, different order).
Mou & McNamara (2002) Exp 2