Distributed truth maintenance

  • Authors:
  • David Murray Bridgeland;Michelel N. Huhns

  • Affiliations:
  • Microelectronics and Computer Technology Corporation, Artificial Intelligence Laboratory, Austin, TX;Microelectronics and Computer Technology Corporation, Artificial Intelligence Laboratory, Austin, TX

  • Venue:
  • AAAI'90 Proceedings of the eighth National conference on Artificial intelligence - Volume 1
  • Year:
  • 1990

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Abstract

In this paper we define the concept of logical consistency of belief among a group of computational agents that are able to reason nonmonotonically. We then provide an algorithm for truth maintenance that guarantees local consistency for each agent and global consistency for data shared by the agents. Furthermore we show the algorithm to be complete, in the sense that if a consistent state exists, the algorithm will either find it or report failure. The algorithm has been implemented in the RAD distributed expert system shell.