Data Mining UGC

Question 1

K-mean clustering algorithm has clustered the given 8 observations into 3 clusters after 1st iteration as follows: C1 : {(3,3), (5,5), (7,7)} C2 : {(0,6), (6,0), (3,0)} C3 : {(8,8),(4,4)} What will be the Manhattan distance for observation (4,4) from cluster centroid C1 in second iteration?

• 2
• √2
• 0
• 18

Question 2

​Data warehouse contains___________ data that is never found in operational environment.

• Scripted
• Encoded
• Encrypted
• Summary