Practice F1-score (5.3.5) - Supervised Learning - Classification Fundamentals (Weeks 5)
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F1-Score

Practice - F1-Score

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Practice Questions

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Question 1 Easy

Define the F1-Score.

💡 Hint: Think about the relationship between Precision and Recall.

Question 2 Easy

What is the significance of the harmonic mean in the F1-Score?

💡 Hint: Consider how averages work and their sensitivity.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does the F1-Score represent?

A measure of total accuracy
A balance between Precision and Recall
The average of true positives

💡 Hint: Remember that Precision and Recall can conflict with one another.

Question 2

True or False: A high F1-Score guarantees high accuracy.

True
False

💡 Hint: Think about what high Precision and Recall actually mean.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

A model handles a dataset with Precision of 0.9 and Recall of 0.3. What does this indicate about its performance? Discuss the implications of such a model in a health care context.

💡 Hint: Think about what the trade-offs are of having high accuracy but missing a lot of actual cases.

Challenge 2 Hard

Contrast two models: one with a very high F1-Score but low Recall and another with balanced Precision and Recall—a scenario depicting a diagnosis application. Discuss the implications.

💡 Hint: Consider the consequences of missing critical cases versus maintaining balanced identification.

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