An Introduction to Statistical Learning: With Applications in R, Gareth James, Daniela Witten, Trevor Hastie, Rob Tibshirani, 2021 (Springer) - A widely respected introductory textbook covering core concepts of machine learning, with detailed explanations of classification and regression performance metrics like accuracy, MSE, and RMSE.
Machine Learning Yearning, Andrew Ng, 2017 (DeepLearning.AI) - Offers practical guidance on how to evaluate and improve machine learning models, emphasizing the use of appropriate metrics for different problem types and diagnosing model performance issues.
Model evaluation: quantifying the quality of predictions, scikit-learn developers, 2023 - The official scikit-learn documentation provides clear definitions, formulas, and examples for various performance metrics, including accuracy, mean squared error, and root mean squared error, as implemented in the library.