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# chap05_new - Mining Frequent Patterns Associations and...

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Association Rule Mining ( Support and Confidence ) Given a transaction D/B, find all the rules X Y with minimum support and confidence support S : probability that a transaction contains {X & Y } confidence C : conditional probability that a transaction having {X} also contains Y I = {i 1 ,i 2 ,i 3 , ...,i n } : set of all items T j I : a transaction, A C (50%, 66.6%) C A (50%, 100%) Customer buys X Customer buys both Customer buys Y n 1 j j T I

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• Spring '17
• cchen
• Data Mining, Association rule learning

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