Unsupervised Evaluation Can Be Internal or External

question 1

Multiple Choice

Unsupervised evaluation can be internal or external. Which of the following is an internal method for evaluating alternative clusterings produced by the K-Means algorithm?

• A) Use a production rule generator to compare the rule sets generated for each clustering.
• B) Compute and compare class resemblance scores for the clusters formed by each clustering.
• C) Compare the sum of squared error differences between instances and their corresponding cluster centers for each alternative clustering.
• D) Create and compare the decision trees determined by each alternative clustering.

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