1 Show That If Q I Q X I U I Then 2 Develop A Variational Approximation Using Bayesi 2528134

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1. Show that if Q = i Q(Xi|Ui), then

2. Develop a variational approximation using Bayesian networks. Assume that Q is represented by a Bayesian network of a given structure G. Derive the fixed-point characterization of parameters that maximize the energy functional for this type of approximation.