Bayesian Networks (BN), which was made up of Directed Acyclic Graph(DAG) and Conditional Probability Table(CPT) , is also called as Belief Networks. DAG is composed with nodes and its pathway. Node is the symbol of variable.

• 贝叶斯网络(BN)，又称为信度网，由一个有向无环图(Directed Acyclic Graph，DAG)和条件概率表(Conditional Probability Table，CPT)组成。