Journal of Computer Science and Technology

, Volume 14, Issue 4, pp 386–392 | Cite as

Isomorphic transformations of uncertainties for incorporating EMYCIN-style and PROSPECTOR-style systems into a distributed expert system

  • Zhang Chengqi Email author
  • Luo Xudong 


In the past, expert systems exploited mainly the EMYCIN model and the PROSPECTOR model to deal with uncertainties. In other words, a lot of stand-alone expert systems which use these two models are available. If we can use the Internet to couple them together, their performance will be improved through cooperation. This is because the problem-solving ability of expert systems is greatly improved by the way of cooperation among different expert systems in a distributed expert system. Cooperation between different expert systems with these two heterogeneous uncertain reasoning models is essentially based on the transformations of uncertainties of propositions between these two models. In this paper, we discovered the exactly isomorphic transformations uncertainties between uncertain reasoning models, as used by EMYCIN and PROSPECTOR.


algebraic structure cooperation distributed expert systems isomorphic transformation uncertain reasoning group 


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Copyright information

© Science Press, Beijing China and Allerton Press Inc. 1999

Authors and Affiliations

  1. 1.School of Computing and MathematicsDeakin UniversityGeelongAustralia
  2. 2.Department of Computer Science and EngineeringThe Chinese University of Hong KongP.R. China

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