What’s the difference between validation and test set?

What’s the difference between validation and test set.

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I think is because during the training you can use the validate the dataset, in different models or on each epochs, and test is used to test the model on data that model did not saw.

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Validation set is ensure that your model is getting better at learning.

Test set is to ensure whether what your model learnt is generalized, will be perform okay with unseen values, or did it just memorize the train and performed better only to train.

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