Assignment on Data mining

Assignment 2 (1) Specify the advantages of using concept hierarchies in data mining applications. (Marks: 20) (2) Define support and confidence in association rule mining. (Marks: 20) (3) Consider the market basket data represented in binary format in the following table. (Mar ks:40) Trans_id bread milk butter Jelly Jam 1 0 1 1 1 0 2 0 1 1 0 0 3 1 1 1 0 0 4 0 1 0 0 1 5 1 0 0 0 1 6 1 0 1 0 0 7 0 1 1 0 0 Generate association rules using Apriori Association rule generation algorithm. Consider Min support value as 2. (4) Following schema diagram represent a data warehouse which consists of the three dimensions time, doctor, and patient, and the two measures count and charge (doctor fee for a patient) . Starting with the base cuboid [day, doctor, patient], wha t specific OLAP operations should be performed in order to count the number of patients appeared at each doctor in 2020? (Marks: 20)