What is the issues with test data in articial intellgenceSol

What is the issues with test data in articial intellgence?

Solution

In Artificial intelligence the test data is unseen to the model.

Basically we have 3 data sets i.e. train data set, validation data set and the test data set.

using training set, we train the classifier. Using validation set, we tune the parameters and then unseen \'test set\' is to test the performance of our classifier.

While building/training the classifier we use only train and validation data. And on test data we used to see the performance of our classifier.

Data leakage is one issue due to which the performance of our classifier will affects on test data. it can manifest in many ways like:

a) Leaking the correct prediction into the test data.

b) Leaking data from the test set into the training set.