A MODEL-BASED METHOD FOR PROCESSING THE SECOND-LEVEL UNCERTAINTIES
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    Abstract:

    This paper provides a model-based method for processing the second-level uncertainties.In this paper,the authors use the space of probability class to present the second-level uncertainty structure of evidence space,L-set to present the second-1evel uncertainties of the rule strengths and use transmitting way of spaces of probability classes to describe the transmitting process of the second-level uncertainties.In this paper,the authors also present some transmitting properties of the specialization relations on classes of probabilities,and compares the two different ways of rule combination by using the concept of specialization.This paper gives a new comprehensive framework for knowl-edge-based reasoning.

    Reference
    1 Cheeseman P.In defense of probability.In:Proceedings of IJCAI,1985.1002~1009. 2 刘大有,钟绍春,高雅卿.具有两级不确定性的推理模型.软件学报,1993,4(3):45~52. 3 Kruse R,Schwecke E,Heinsohn J.Uncertainty and vagueness in knowledge based systems(numerical methods). Springer-Verlag, New York.1991. 4 Zdrahal Z.Second order measures for uncertainty processing.In:Proceedings of IJCAI,1993.626~631. 5 Yen J.GERTIS:a Dempster-Shafer approach to diagnosing hierarchical hypotheses.Communications of ACM. 1989,32(5):573~585. 6 Kyburg H E Jr.Bayesian and non-Bayesian evidential updating.Artificial Intelligence,1987,31:271~293. 7 Guan J W,Bell D A.Evidence theory and its applications.Studies in Computer Science and ArtificiaI Intelligence 7,Elsevier,North-Holland.1991. 8 Halpern J Y,Fagin R.Two views of belief:belief as generalized probability and belief as evidence.Artificial Intel- ligence, 1992,54(3):275~317. 9 李岳峰.知识系统中处理不确定性信息的内涵方法研究[博士论文].吉林大学,1996. 10 刘大有,李岳峰,唐海鹰.证据函数的限定化关系.软件学报,1996,7(增刊):216~223.
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刘大有,李岳峰.二级不确定性的内涵处理方法.软件学报,1997,8(7):535-540

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  • Revised:September 11,1996
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