Synthetic Nodes

Discover how the size of a CPD table in a BN impacts its computation and learn to tackle the "curse of dimensionality" by utilizing synthetic nodes.

The size of a CPD table

In a Bayesian network, the size of the CPD table for a child node depends on the number of parent nodes.

For NN parent nodes, each having kk possible values, there will be kNk^{N}different combinations. The child node itself can also have mm possible values. Therefore, mm represents the number of possible values (or states) for the child node. Just as kk ...