| 引用本文: | 刘江宁,吴泉源.基于格结构假设空间证据推理的双向传播计算模型.[J].国防科技大学学报,1993,15(3):90-95.[点击复制] |
| Liu Jiangning,Wu Quanyuan.A Two-way Broadcasting Computational Model of Evidential Reasoning Based on the Lattice-structural Hypothesis Space[J].Journal of National University of Defense Technology,1993,15(3):90-95[点击复制] |
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| 基于格结构假设空间证据推理的双向传播计算模型 |
| 刘江宁, 吴泉源 |
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(电子计算机系)
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| 摘要: |
| 在专家系统中，基于证据理论的推理网络一般为格结构形式，将证据理论的现存形式直接应用于具有复杂结构的推理过程存在很大的困难。本文基于格结构假设空间，采用不确定知识的可信度表示方法，给出了初始基本概率赋值函数的一种计算方法，并在扩充的 Shenoy-Shafer 结点处理模型的基础上，提出了证据推理的双向传播计算模型。 |
| 关键词: 专家系统，证据理论，可信度，格 |
| DOI： |
| 投稿日期：1992-02-28 |
| 基金项目: |
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| A Two-way Broadcasting Computational Model of Evidential Reasoning Based on the Lattice-structural Hypothesis Space |
| Liu Jiangning, Wu Quanyuan |
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(Department of Computer Science)
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| Abstract: |
| Based on the 1attice-structura1 hypothesis space of expert systems，we approach a computationa1 mode1 of evidentia1 reasoning under uncertainty: the Two-way Broadcasting Mode1 (TBM). In TBM，the measure of uncertainty of know1edge is represented as the certainty factor (CF) of the improved MYCIN model. This paper describes a efficient method which ca1cu1ates bpa functions from CF and prior probabilities. It a1so discusses the single node bpa's propagating mode1s，a extenting version of Shenoy-Shafer model. |
| Keywords: 1attice,certainty factor,expert system,evidence theory |
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