Intro to Data Mining

 This week we also discuss the concepts in chapter seven, which deals with the basic concepts and algorithms of cluster analysis.  After reading chapter seven answer the following questions:

1. What is K-means from a basic standpoint?
2. What are the various types of clusters and why is the distinction important?
3. What are the strengths and weaknesses of K-means?
4. What is a cluster evaluation?

Select at least two types of cluster evaluations, discuss the concepts of each method.