cog arch

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cog arch

  1. 1. Cognitive Architectures For Physical Agents Sara Bolduc Smith College CSC 290
  2. 2. Overview• Background & Motivation• Example Cognitive Architectures• Capabilities• Properties• Evaluation Criteria• Open Issues
  3. 3. Background & Motivation• What is a cognitive architecture?• Why create a cognitive architecture?• Emerging architectural classes – Psychological phenomena – Representation, organization, utilization, and acquisition of knowledge• Entering the commercial sector• The need for integrated systems
  4. 4. Example Cognitive Architectures• Soar (Laird, Newell, & Rosenbloom, 1987; Newell, 1990)• ACT-R (Anderson & Lebiere, 1998; Anderson et al., 2005)• PRODIGY (Carbonell, Knoblock, & Minton, 1990)• ICARUS (Langley, Cummings, & Shapiro, 2004)• The 3T Architecture (Bonasso et al., 1997)
  5. 5. Capabilities• What is a well-defined architecture? – Recognition & Categorization – Decision Making & Choice – Perception & Situation Assessment – Prediction & Monitoring – Problem Solving & Planning – Reasoning & Belief Maintenance – Execution & Action – Interaction & Communication – Remembering, Reflection, & Learning
  6. 6. Properties• Knowledge: – Representation – Organization – Utilization – Acquisition & Refinement
  7. 7. Evaluation Criteria• How does one evaluate cognitive architectures? – Generality, Versatility, & Taskability – Rationality & Optimality – Efficiency & Scalability – Reactivity & Persistence – Improvability – Autonomy & Extended Operation
  8. 8. Open Issues• Episodic Memory & Reflective processes• Natural Language• Emotions• Enhanced learning• And many more…
  9. 9. ReferencesLangley, P., Laird, J.E., & Rogers, S. (2006). Cognitive Architectures: Research Issues and Challenges (Technical Report). Computational Learning Laboratory, CSLI, Stanford University, CA.http://www.isle.org/~langley/archs.html

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