|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Break it down into
subproblems
|
|
|
|
|
|
|
|
|
Suppose I tell
you the cluster centers ci
|
|
|
|
• |
Q: how to determine which points to
associate with each ci?
|
|
|
|
|
|
|
• |
A: for each point p, choose closest ci
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Suppose I tell
you the points in each cluster
|
|
|
• |
Q: how to determine the cluster centers?
|
|
|
|
|
|
|
|
• |
A: choose ci to be the mean of
all points in the cluster
|
|
|
|