TWO-STAGE BAYESIAN NETS
Jon Williamson · Oxford University Press eBooks · 2004
Objective Bayesianism yields a justification of the causal Markov condition: in certain circumstances, the objective Bayesian net is just the causal net and so the causal net is an appropriate representation of rational degrees of belief. However, the resulting Bayesian net may not yield accurate enough predictions. This motivates a two-stage methodology for using Bayesian nets: first construct a causal net, then refine this net to better represent physical probability.