3.3.2 Normal Distribution-based UApriori
The Normal distribution-based approximate probabilistic frequent itemset mining algorithm, NDUApriori, was pro- posed in [10]. According to the Lyapunov Central Lim- it Theory, Poisson Binomial distribution converges to the Normal Distribution with high probability [25]. Thus, the frequent probability of an itemset can be rewritten by the standard normal distribution formula in the following for- mula.
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