Answer the following question :
Q1: Describe the four general optimization techniques for efficient computation of data cubes.
Q2: Consider transaction table below to answer the following question.
TID Items
T100 A, C, D, E
T101 A, C, E
T102 B, D, E, F
T103 A, D, E, F
T104 B, C, F
T105 A, B, C, D, E
If we set minimum support count equal to 50%, list all frequent itemsets along with their support count percentage.
Q3: What is Association Rule? Discuss with example?
Q4: What is Apriori algorithm, discuss its advantages and disadvantages?