Quiz DM 03.03.23

Self-organizing maps are the best example of which of the following?

• Unsupervised learning

• Supervised learning

• Reinforcement learning

• Missing data imputation

Hierarchical clustering should be mainly used for exploration.

• True

• False

Which is needed by K-means clustering?

• defined distance metric

• number of clusters

• initial guess as to cluster centroids

• all of these

Which clustering technique requires a merging approach?

• Partitional

• Hierarchical

• Naive Bayes

• None of the mentioned

An actual data of the database is stored in?

• Table

• Field

• Query

• Report