> For the complete documentation index, see [llms.txt](https://george-jen.gitbook.io/data-science-and-apache-spark/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://george-jen.gitbook.io/data-science-and-apache-spark/ml-tuning-model-selection-and-hyperparameter-tuning.md).

# ML Tuning: model selection and hyperparameter tuning

Model selection (a.k.a. hyperparameter tuning) 

Cross-Validation 

Train-Validation Split