7. Model Evaluation
Overview
This chapter is an introduction to how you can improve a model's performance by using hyperparameters and model evaluation metrics. You will see how to evaluate regression and classification models using a number of metrics and learn how to choose a suitable metric for evaluating and tuning a model.
By the end of this chapter, you will be able to implement various sampling techniques and perform hyperparameter tuning to find the best model. You will also be well equipped to calculate feature importance for model evaluation.