To enable holdout validation, turn on the switch and upload your validation dataset. The holdout validation dataset must match the format of your training data. If you do not enable this option, the platform will automatically split your training data: 80% will be used for training, and 20% for validation. Holdout validation allows you to evaluate your model on a completely separate, user-provided dataset for more robust testing.
When finished, click Next to proceed to the data preprocessing stage.