Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define cross-validation in your own words.
💡 Hint: Think about evaluating performance on unfamiliar datasets.
Question 2
Easy
What is the purpose of k-fold cross-validation?
💡 Hint: Consider why we might want to see how the model performs across different samples.
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 cross-validation primarily used for?
- To increase training dataset size
- To evaluate model generalization
- To optimize hyperparameters
💡 Hint: Think about why we evaluate model performance.
Question 2
True or False: k-fold cross-validation can help with overfitting issues.
- True
- False
💡 Hint: Consider what happens when a model struggles with unseen data.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given a dataset of 1000 samples, describe how you would perform 10-fold cross-validation. What insights might you gain?
💡 Hint: Think about how each fold contributes to a clearer picture of model performance.
Question 2
Discuss how the choice of k in k-fold cross-validation influences the evaluation process, considering computational time and bias.
💡 Hint: Reflect on the trade-offs involved in choosing k.
Challenge and get performance evaluation