week 12 ends july 28 chapter 7b cluster analysis

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Document attached for the rest of the questions

Problem #1

Consider the following four faces shown below. Again, darkness or number of dots represents density. Lines are used only to distinguish regions and do not represent points.

(a) For each figure, could you use single link to find the patterns represented by the nose, eyes, and mouth? Explain.

(b) For each figure, could you use K-means to find the patterns represented by the nose, eyes, and mouth? Explain.

(c) What limitation does clustering have in detecting all the patterns formed by the points in the figure?