因果矩阵是在鱼骨图的基础上面，利用矩阵的形式处理一些鱼骨图不方便处理的复杂问题的分析工具。
由于分散控制的结构和因果约束的要求，给输出反馈矩阵加上了结构上的约束。
The constraints due to the decentralized control structure and the casual condition have posed structure constraints on the output feedback gain matrix.
识别过程输入变量和输出变量，通过因果图、关系矩阵记录它们之间的关系。
Identify process input variables and process output variables, and document their relationships through cause and effect diagrams, relational matrices, etc.
为克服数据库因果关系条件概率矩阵维数灾，将因果关系转化为线性多项式，可使计算简便。
To overcome dimension curse of conditional probability matrix, casual rules in databases is converted to linear polynomial, which makes calculation simple.
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