Question

By applying the Apriori algorithm to the dataset in the table below:

10	Beer, Nuts, Diapers
20	Beer, Coffee, Diapers
30	Beer, Diapers, Eggs, Milk
40	Nuts, Eggs, Milk
50	Beer, Coffee, Milk
60	Diapers, Eggs, Milk
70	Beer, Coffee, Diapers
80	Beer, Nuts, Coffee, Diapers, Eggs, Milk

where the minimum support for frequent patterns set at 3, the set of three items frequent itemsets, L₃ is:

Group of answer choices

1. L₃ = {{Beer, Diapers, Milk}}

2. L₃ = {{Diapers, Eggs, Milk}, { Beer, Coffee, Diapers }}

3. L₃ = {{Beer, Diapers, Milk}, {Beer, Diapers, Eggs}}

4. L₃ = {{Diapers, Eggs, Milk}}

5. L₃ = {{Beer, Coffee, Diapers}, {Beer, Diapers, Eggs}}

Answer 1

2. L₃ = {{Diapers, Eggs, Milk}, { Beer, Coffee, Diapers }}

Diaper, Eggs and Milk appear 3 times, in 30, 60 and 80. Beer, Coffee and Diapers appear 3 times, in 20, 70 and 80. Since both set of three items surpass the minimum support of 3, L₃ = {{Diapers, Eggs, Milk}, { Beer, Coffee, Diapers }}