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Bayesian networks

A simple, graphical notation for conditional independence assertions and hence for compact specification of full joint distributions

Syntax:

a set of nodes, one per variable

a directed, acyclic graph (link ≈ "directly influences")

a conditional distribution for each node given its parents:

P (Xi | Parents (Xi))

In the simplest case, conditional distribution represented as a conditional probability table (CPT) giving the distribution over Xi for each combination of parent values

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