a) What are outliers? List four applications of outlier detection.

Question One

a) What are outliers? List four applications of outlier detection.

b) What are the challenges of outlier detection?

Question Two

a) How does PAM (K-medoids) form clusters; how does DBSCAN form clusters?

b) Assume you apply DBSCAN to the same dataset, but the examples in the dataset are sorted differently. Will DBSCAN always return the same clustering for different orderings of the same dataset? Give reasons for your answer.

Question Three

Measuring geodesic distance for the graph in given figure, calculate the following:

i. Eccentricity

ii. Radius

iii. Diameter

iv. Peripheral vertex

Question Four

Why is it often necessary to do constraint-based clustering? Describe the terms hard constraint and soft constraint.

Assignment

Data Mining and Data Warehousing

Student Details:

Name:###

CRN:###�

ID:###

1 Mark

Learning Outcome(s):

LO-2,3

1 Mark

Learning Outcome(s):

LO- 2, 3

1 Mark

Learning Outcome(s):

LO-2, 3

A

D

E

C

B

F

1 Mark

Learning Outcome(s):

LO-2

Learning Outcome(s):

LO-2, 3

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