Clustering Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

What is the clustering method k-means used for?

A

number of clusters k is chosen in advance, then the goal is to partition the inputs into sets Si…Sk in a
way that minimizes the total sum of squared distances from each point to the mean of its assigned cluster.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

How to choose k?

A

Plotting the sum of squared errors and looking at where the graph “bends”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly