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Mastering Probabilistic Graphical Models Using Python by Abinash Panda, Ankur Ankan

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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 Belief propagation by multiplying existing factors. Then, we eliminate a variable in Belief propagation to generate a new factor Belief propagation, 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 ...

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