6- Introduction to Clustering
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Questions and Answers

What is the main objective of clustering in marketing?

Help marketers discover distinct groups in their customer bases.

In city-planning, how are groups of houses identified?

According to their house type, value, and geographical location.

Why should observed epicenters in earthquake studies be clustered along continent faults?

To understand the distribution and patterns of earthquakes.

What is the purpose of feature selection in clustering?

<p>Selecting information about objects concerning the task of interest.</p> Signup and view all the answers

What factors need to be considered in clustering algorithm and parameters?

<p>Distance and similarity measure, cluster quality criterion, and algorithms.</p> Signup and view all the answers

What is the core task of cluster analysis in data mining?

<p>Finding clusters</p> Signup and view all the answers

How are clusters defined in the context of cluster analysis?

<p>Similar objects in the same cluster, dissimilar objects in different clusters</p> Signup and view all the answers

Why is defining a 'valid' result in clustering challenging?

<p>Results are subjective and in the eye of the beholder</p> Signup and view all the answers

What are some common themes found in attempts to define clusters?

<p>Homogeneity, similarity, and cohesion</p> Signup and view all the answers

What are some properties that clusters may have in clustering algorithms?

<p>Connectivity, separation, least squared deviation, density</p> Signup and view all the answers

Give an example of an application of clustering in biology.

<p>Taxonomy of living things</p> Signup and view all the answers

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