Tools for Segmentation Flashcards
1
Q
purpose of Cluster Analysis
A
to form segments
2
Q
purpose of discriminant analysis
A
to describe segments
3
Q
How things are clustered in K Means
A
Randomly Assign a point to the nearest cluster/centroid and then recompute the center of the cluster. repeat
4
Q
In Hierarchical
A
Unknown number of clusters. Join the two items that are the closest, then join the next two closest points. Either join them to form a new group or attach them to an existing cluster.
5
Q
How does Classification analysis relate to Cluster and Discriminant analysis
A
Cluster analysis +Discriminant analysis imply a predictive rule for Classification.
Use predictive rule on new discriminant data to predict cluster assignments
