Practice Imbalanced Datasets - 12.4.D | 12. Model Evaluation and Validation | Data Science Advance
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is an imbalanced dataset?

πŸ’‘ Hint: Think about how many instances you have of each class.

Question 2

Easy

Name one metric used for evaluating imbalanced datasets.

πŸ’‘ Hint: Consider metrics that focus on positives.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is a key metric in evaluating imbalanced datasets?

  • Accuracy
  • Recall
  • F1-Score

πŸ’‘ Hint: Think about metrics that account for both false positives and negatives.

Question 2

True or False: Accuracy is always a reliable metric for model evaluation.

  • True
  • False

πŸ’‘ Hint: Consider situations where one class vastly outnumbers another.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Given a dataset with two classes, A (90% samples) and B (10% samples), how would you evaluate a model trained on this data? What metrics would you focus on and why?

πŸ’‘ Hint: Consider the implications of performance metrics when classes are imbalanced.

Question 2

Explain how you would implement SMOTE in a practical case and discuss its potential pitfalls.

πŸ’‘ Hint: Think about balancing quantities and avoiding mimicking too closely.

Challenge and get performance evaluation