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Volume 12 Issue 1
January  1997
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Shen Ningchuan, Li Wei. R-Calculus for ELP:An Operational Approach to Knowledge Base Maintenance[J]. Journal of Computer Science and Technology, 1997, 12(1): 17-28.
Citation: Shen Ningchuan, Li Wei. R-Calculus for ELP:An Operational Approach to Knowledge Base Maintenance[J]. Journal of Computer Science and Technology, 1997, 12(1): 17-28.
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R-Calculus for ELP:An Operational Approach to Knowledge Base Maintenance

  • Department of Computer Science; Beijing University of Aeronautics and Astronautics Beijing 100083; E-mail:{shen; liwei}@cs.sebuaa.ac.cn;

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  • Published Date: January 09, 1997
    Abstract
  • Some concepts used in knowledge base maintenance, such as sequence, new law, user's rejection and reconstructions of a knowledge base, are first introduced, and then a framework for extended logic programming (ELP) is given,where an extended logic program is equivalent to a knowledge base. A transition system called R-calculus for ELP is provided. For a given knowledge base and a user's rejection, the Rcalculus for ELP will deduce best revisions of the base. The soundness and the completeness of the Rcalcul…
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    • References (3)
  • [1]
    Alchourron.C, Gardenfors.P, Makinson.D. On the logic of theory change: Partial meet contraction and revision. The Journal of Symbolic Logic, 1985, 50: 510-530.
    [2]
    Li Wei. An open logic system. Science in China (Series A), 1993, 36: 362-375.
    [3]
    Li Wei. A logic framework for knowledge base maintenance. Journal of Computer Science and Technology, 1995, 10(3): 193-205. ………….
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