Mastering Probabilistic Graphical Models Using Python

Belief propagation

In the previous section, we saw that the basic operation of the variable elimination algorithm is the manipulation of the factors. First, we create a factor by multiplying existing factors. Then, we eliminate a variable in to generate a new factor , which is then used to create another factor. From a different perspective, we can say that a factor is a data structure, which takes messages generated by the other factor , and generates ...