5. Model Validation and Optimization
Overview
In this chapter, you will learn how to use k-fold cross validation to test model performance, as well as how to use validation curves to optimize model parameters. You will also learn how to implement dimensionality reduction techniques such as Principal Component Analysis (PCA). By the end of this chapter, you will have completed an end-to-end machine learning project and produced a final model that can be used to make business decisions.