Implementing First-Order Variables in a Graphical Cognitive Architecture

  • Authors:
  • Paul Rosenbloom

  • Affiliations:
  • Department of Computer Science and Institute for Creative Technologies, University of Southern California, 12015 Waterfront Dr., Playa Vista, CA 90094, Rosenbloom@usc.edu

  • Venue:
  • Proceedings of the 2010 conference on Biologically Inspired Cognitive Architectures 2010: Proceedings of the First Annual Meeting of the BICA Society
  • Year:
  • 2010

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Abstract

Graphical cognitive architectures implement their functionality through localized message passing among computationally limited nodes. First-order variables --particularly universally quantified ones --while critical for some potential architectural mechanisms, can be quite difficult to implement in such architectures. A new implementation strategy based on message decomposition in graphical models is presented that yields tractability while preserving key symmetries in the graphs concerning how quantified variables are represented and how symbols, probabilities and signals are processed.