Frequent Itemsets and Association rules Association Rules Example: Frequent Itemsets Items=milk, coke, pepsi, beer, juice Support threshold =3 baskets B1={m,c,b} 2={m,p,j B3=/m,b] 4={c Am, b, by BIkE, b, jh B元c} Frequent itemsets: infer, (b), [il im, bi b, c, ic,j]Frequent Itemsets and Association Rules 7 Example: Frequent Itemsets ▪ Items={milk, coke, pepsi, beer, juice}. ▪ Support threshold = 3 baskets. B1 = {m, c, b} B2 = {m, p, j} B3 = {m, b} B4 = {c, j} B5 = {m, p, b} B6 = {m, c, b, j} B7 = {c, b, j} B8 = {b, c} ▪ Frequent itemsets: {m}, {c}, {b}, {j}, {m,b}, {b,c}, {c,j}. Association Rules