Practice Confusion Matrix - 3.6.1 | 3. Satellite Image Processing | Geo Informatics
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Knowledge

3.6.1 - Confusion Matrix

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is a confusion matrix?

💡 Hint: Think of it as a report card for classifications.

Question 2

Easy

Define Overall Accuracy.

💡 Hint: Consider the ratio of correct predictions to total predictions.

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 does a confusion matrix help assess?

  • The clarity of satellite imagery
  • The accuracy of classifications
  • The type of satellite used

💡 Hint: Think about what kind of assessments we want to make about our classifications.

Question 2

True or False: User's Accuracy measures the probability of reference pixels being classified correctly.

  • True
  • False

💡 Hint: Remember whose perspective it matters from.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Given a confusion matrix for a land cover classification with the following data: True Positive (TP) = 30, False Positive (FP) = 10, True Negative (TN) = 40, False Negative (FN) = 5. Compute Overall Accuracy, User's Accuracy, Producer's Accuracy, and Kappa Coefficient.

💡 Hint: Make sure to follow each step carefully.

Question 2

Discuss the implications of a low Kappa Coefficient value in terms of model reliability and classification performance.

💡 Hint: Reflect on the importance of trust in the results attained from satellite imagery.

Challenge and get performance evaluation