Definition
The test set is a portion of data held out during the training process to evaluate the final model’s generalization capability. Unlike validation sets used for hyperparameter tuning, the test set provides an unbiased estimate of model performance on new, real-world data. Proper testing ensures that the model has not overfit to the training data and can reliably perform its intended task in production environments.
Summary
Test refers to the evaluation phase where a trained AI model is assessed on unseen data to measure performance.
Key Concepts
- Generalization
- Unseen Data
- Model Evaluation
- Overfitting Prevention
Use Cases
- Measuring accuracy of a classification model
- Benchmarking different algorithm versions
- Final validation before deployment