摘要:
A Bayesian network is :a) A directed acyclic graph (DAG) G, which nodes represent the variables X1,...,Xn. (有向无环图,每个结点表示变量)b) for each node Xi, a CPD ... 阅读全文
摘要:
Probabilistic Graphical Models (PGM):factor:可被看作是一个函数或者一张表。Φ(x1,x2,...,xn)--> R. {xk} 是n个变量,R表示对应的取值。一个joint Probability Distribution 就是一个factor,因此对fa... 阅读全文