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Exercise 10 - Apriori Algorithm

Find the frequent item sets and generate association rules on the above transactions. Assume that minimum support threshold (s = 40%) and minimum confident threshold (c = 60%)

Answer:

Minimum support count = (40/100) x 8 = 3

There is only one itemset with minimum support 3. So only one itemset is frequent.
Frequent Itemset = { Grapes, Banana }

Association Rules

Grapes => Banana [ Sup (Grapes, Banana) / Sup (Grapes) ] = 3/3 = 100% > Confidence VALID
Banana => Grapes [ Sup (Grapes, Banana) / Sup (Banana) ] = 3/4 = 75% > Confidence VALID

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