Posterior probability, P (A | B) is the probability that the attribute data is class B, there will be A. Likelihood or P (A | B) is the probability that a train with da da C Ning class and there is an attribute A with A = a_ (1) and M ∩ ∩ a_M a_2 ... is the number of attributes in the train Ning da da. Prior probability P, or (B) is the probability of class B, but to attribute A = a_ (1) ∩ ∩ a_M a_2 ... occurs in train since there will probably be fewer da da or no format of this attribute occurs. Therefore, using the principle that each attribute are all independent of each other, you can change the P (A | B) is as.
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