One of the fundamental concepts in machine learning is Cross Validation. It’s how we decide which machine learning method would be best for our dataset. Check out the video to find out how!

0:00 Awesome song and introduction
0:25 Motivation for using Cross Validation
1:18 Cross Validation concepts
3:41 An example using Cross Validation
4:35 Terminology (4-Fold, 10-Fold, etc)
5:20 Cross Validation for tuning parameters

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