What are the challenges of outlier detection

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Reference no: EM131753867

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 G in given figure, calculate the following:

i. Eccentricity

ii. Radius

iii. Diameter

iv. Peripheral vertex

1422_Vertex.jpg


Question Four

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

Reference no: EM131753867

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