Data Science and Machine Learning (Theory and Projects) A to Z - Overfitting, Underfitting, and Generalization: Data Sno

The video discusses the importance of validation and test sets in machine learning. It highlights the risks of overfitting and data snooping when validation sets are reused excessively, leading to misleading generalization performance. The necessity of a separate test set for evaluating true model generalization is emphasized. The video also touches on the use of benchmark datasets and the potential pitfalls of data snooping in model development. Finally, it introduces the concept of cross-validation for hyperparameter tuning, which will be covered in the next video.

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