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# Suppose a Best Buy analyst is interested in only the frequent patterns (i., itemsets ) from the sales transactions that satisfy certain constraints.

Suppose a Best Buy analyst is interested in only the frequent patterns(i.e., itemsets) from the sales transactions that satisfy certain constraints. For the following cases, state the characteristics(i.e.,categories) of every constraint in each case and how to mine such patterns most eﬃciently.

i. The proﬁt range for the items in each pattern must be within

$50.

Answer:

ii. The sum of the price of all the items with proﬁt over$5 in each pattern is atleast $100.

Answer:

iii. The average proﬁt for those items price dover $50 in each pattern must be less than$10.

Answer: