| 摘要: |
| 针对定性推理在有冲突情况下进行传播时所存在的问题，本文提出了一种因果关系形式，引入了“时间”和“效果”概念，给出了因果推理过程：先建立因果关系图，再传播原因变量的行为，并应用定性代数方法来处理冲突问题．这种因果推理形式推广了Ｉｗａｓａｋｉ因果推理方法. |
| 关键词: 因果推理 因果关系 因果关系图 定性代数 |
| DOI： |
| 分类号: |
| 基金项目:本文研究得到国家自然科学基金资助. |
|
| A CAUSAL REASONING METHOD |
|
WANG Qiang,SHI Chunyi
|
| Abstract: |
| It is known that existed causal reasoning methods will have problems to propagate the causal behaviors when there are some conflicts．To solve this problem．the authors provide a causal relation formulation．which introduces the concepts of‘time’and ‘effect’．Then a process for causal reasoning is provided：constructs the causal relation graph，then propagates the causal behaviors of the reason variables(exogenous variables)，and uses qualitative algebra to solve conflicting cases．It is an extension of 1wasaki'S causal reasoning method． |
| Key words: Causal reasoning causal relation causal relation graph qualitative algebra |
