You will learn about training data, and how to use a set of data to discover potentially predictive relationships. As you build the movie recommendation system, you will learn how to train algorithms using training data so you can predict the outcome for future datasets. You will also learn about overtraining and techniques to avoid it such as cross-validation. All of these skills are fundamental to machine learning.

• What is regularization and why it is useful
• Perhaps the most popular data science methodologies

You will learn about training data, and how to use a set of data to discover potentially predictive relationships. As you build the movie recomme