Practice Lab Objectives (5.7.1) - Unsupervised Learning & Dimensionality Reduction (Weeks 9)
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Lab Objectives

Practice - Lab Objectives

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is K-Means clustering?

💡 Hint: Think about how data points are grouped together!

Question 2 Easy

Why is data preparation important?

💡 Hint: Consider how raw data might affect your analysis.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the primary purpose of K-Means clustering?

To classify data points into predefined categories
To partition data into K distinct clusters
To reduce the dimensionality of data

💡 Hint: Think about what K represents in this context!

Question 2

True or False: Hierarchical clustering requires the number of clusters to be defined in advance.

True
False

💡 Hint: What gives hierarchical clustering its flexibility?

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Consider a dataset with significant noise and varying densities. Which clustering method would you choose to analyze this dataset, and why?

💡 Hint: Focus on the methods’ strengths and how they address noise.

Challenge 2 Hard

You have applied K-Means clustering but suspect that the number of clusters chosen was too low. What approach would you take to validate the number of clusters next time?

💡 Hint: What methods help in determining the right K?

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