The declarative representation and procedural simulation of causality in physical mechanisms

  • Authors:
  • Chuck Rieger;Milt Grinberg

  • Affiliations:
  • Computer Science Department, University of Maryland, College Park, Maryland;Computer Science Department, University of Maryland, College Park, Maryland

  • Venue:
  • IJCAI'77 Proceedings of the 5th international joint conference on Artificial intelligence - Volume 1
  • Year:
  • 1977

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Abstract

A theory of cause-effect representation is used to describe man-made mechanisms and natural laws. The representation, consisting of 10 link types that interconnect events into large declarative patterns, is illustrated on a relatively sophisticated device, the home gas forced air furnace, Next, a procedure and framework for translating the declarative description of a mechanism into a population of associatively triggerable computation units is described. The associative, of procedural, form can then be used to perform a discrete cause-effect simulation of the device. The declarative to procedural translation, including a simulation trace, is shown for the furnace. Topics of mechanism abstraction and mechanism invention are discussed, and the entire "Mechanisms Laboratory" is placed in the larger perspective of our research into human problem solving.