#notes#cs471 Bayesian Networks help us express conditional independence assumptions

Probabilistic Models

  • Always simplifications
  • Describe a portion of how the world works.

Graphical Model Notation

  • Nodes: random variables (with domains)
  • Edges: Interactions
    • Indicate direct influence between variables

Bayes Nets

Bayes’ Nets implicitly encode join probability distribution as a product of local conditional distributions: