DM2 Quiz

What do you see in the figure

• Line Diagram

• Dendogram

• Venn Diagram

• Cluster Diagram

Agglomerative hierarchical

clustering technique MIN is also called

• Single link

• Double link

• Complete link

• Average link

The height at which two

clusters are merged in the dendrogram reflects the ____________ of the two clusters.

Which of the following is density based clustering algorithm

• K-means

• Hierarchical clustering

• DBSCAN

Core points, Border points and Noise points are defined in

• K-means

• Hierarchical

• DBSCAN

How is density calculated in DBSCAN

• By counting number of points within a specified radius

• By calculating probability of points in specified area

What are the ways to construct ensemble ?

(Select one or more)

• By manipulating the training set.

• By manipulating the input features.

• By manipulating the class labels.

• By manipulating the learning algorithm.

Bootstrap aggregation is known as

• Boosting

• Bagging

• Booting

Suppose

we apply a classifier that induces only one-level binary decision trees, with a

test condition x ≤ k, where k is a split point chosen to minimize the entropy

of the leaf nodes. Such a tree is also known as a

On average, a bootstrap sample contains approximately _____ % of the original training data

• 67%

• 63%

• 73%

• 37%