I recently had a puzzling interview question and I am wondering whether anybody can tell me the intended answer.
The question shows train and test error for three models plotted against the number of iterations/epochs and asks you to rank the models in order "from best to worst".
All models have the same minimum test error but different error curves on the training set.
It is a multiple choice question and all six of the orders are given as possible answers.
I didn't know what the intention was (or what "best" means) so I ranked the models by how many epochs they took to achieve minimum test set error. But this is just a guess.
What is the intended answer to the question?