Bayesian Belief Networks (BBNs) also known as Bayesian Networks (BNS) or Belief Networks (BNS) was first developed in the late 1970s at Stanford University [4]. BBNs the graph model (graphical model) show the relationship cause - effect (Cause - effect) between variables. BBNs mainly based on the theory of conditional probability, also known as Bayesian theory (Bayesian theory or Bayes' theory). Therefore, this technique called Bayesian Belief Networks (BBNs). BBNs also a chart format of influence (Influence diagram), a harmonious combination between probability theory and graph theory to solve two important problems: the uncertainty and complexity, is applied extensively in mathematics and engineering.
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