Q29.Marks: +2.0UGC NET Paper 2: Computer Science 2020
Given below are two statements:
If two variables V1 and V2 are used for clustering, then consider the following statements for k means clustering with k = 3:
Statement I: If V1 and V2 have correlation of 1 the cluster centroid will be in straight line.
Statement II: If V1 and V2 have correlation of 0 the cluster centroid will be in straight line.
In the light of the above statements. choose the correct answer from the options given below
1.Both Statement I and Statement II are true
2.Both Statement I and Statement II are false
3.Statement I is correct but Statement II is false✓ Correct
4.Statement I is incorrect but Statement II is true
Solution
The correct answer is option 3.
Key Points
Both data points would be in a straight line if the correlation between the variables V1 and V2 is 1. As a result, all three cluster centroids will form a straight line.
∴ Hence theStatement I is correct but Statement II is false.
Additional Information
K-Means Clustering is an unsupervised learning algorithm used in machine learning and data science to tackle clustering problems. Unsupervised Learning algorithm K-Means Clustering divides the unlabeled dataset into separate clusters. K specifies the number of pre-defined clusters that must be generated during the process; for example, if K=2, two clusters will be created, and if K=3, three clusters will be created.