A belief network is a probability model defined on an acyclic directed graph; distributed means nodes can be on different hosts, and heterogeneous means allowing different conditional distributions. 一个信念网络是定义在一个非循环有向图上的概率模型;分布性指节点可以在不同的主机上,异质性指可以允许不同的条件分布。
acyclic
[ adj ]
not cyclic; especially having parts arranged in spirals rather than whorls
<adj.all>
having an open chain structure
<adj.all>
Acyclic \A*cyc"lic\, a. [Pref. a- not + cyclic.] Not cyclic; not disposed in cycles or whorls; as: (a) (Bot.) Of a flower, having its parts inserted spirally on the receptacle. (b) (Org. Chem.) Having an open-chain structure; aliphatic. [Webster 1913 Suppl.]