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  • [Knowledge-based AI] {ud409} Lesson 6: 06

     

     

    This example is adapted from the following paper:

    Lehman, J. F., Laird, J. E., & Rosenbloom, P. S. (1996). A gentle introduction to Soar, an architecture for human cognition. Invitation to Cognitive Science4, 212-249.

     

     David is using his knowledge to make a decision.

    • How is he using his knowledge to make a decision?
    • What is the architecture?
    • what is the reasoning that leads him to make that specific decision?

     Function of a Cognitive Architecture

    Production Systems:
    Winston Chapter 7, pages 119-137 can be found at:http://courses.csail.mit.edu/6.034f/ai3/rest.pdf 

     Levels of Cognitive Architectures

     

     Assumptions of Cognitive Architectures

     

    This list is adapted from the following paper:

    Lehman, J. F., Laird, J. E., & Rosenbloom, P. S. (1996). A gentle introduction to Soar, an architecture for human cognition. Invitation to Cognitive Science4, 212-249.

    Architecture + Content = Behavior 

     

     A Cognitive Architecture for Production Systems

    A general architecture of Cognitive system

    Next is a specific kind of Cognitive system: SOAR

     

    This example is adapted from the following paper:

    Lehman, J. F., Laird, J. E., & Rosenbloom, P. S. (1996). A gentle introduction to Soar, an architecture for human cognition. Invitation to Cognitive Science4, 212-249.

    Here we first only focus on the deliberation of SOAR => long-term memory and working memory

    Thre are three parts of knowledge in long-term memory:

    • Procedural: how to do certain things
    • Sematic: generalization in the form of concepts and models of the world
    • Episodic: events, eg. what happened yesterday

     Return to the Pitcher

     

     Action Selection

     

    decision making => find a path from S0 to S101 => havent perform any action, just thinking

     (comment: model predictive control?)

     Putting Content in the Architecture

     

    simple representation of information

     Bringing in Memory

     

     production rules:

     

     Exercise: Production System in Action I

    left: situation; right: knowledge (rules)

     

    r2 => end

    r2 => r4 => r5 => end

     

    r2 => r4 => r5 & r6 => conflict 

     Chunking

     

    r2 => r4 => r5 & r6 => conflict => learn to choice r5 or r6 here

     

    here, reasoning, learning and memory are closely connected.

     

    Fundamentals of Learning

     reason first, if reach an impasse, turn back to learning

    We are trying to build a unified theory of reasoning, memory and learning, where the demands of memory and reasoning constrain the processing of learning 

     

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  • 原文地址:https://www.cnblogs.com/ecoflex/p/10982896.html
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