Training, Dev Dataset, Test, Set.
==> 60/20/20 If size of the dataset is 1000000 to INF ==> 98/1/1 or 99.5/0.25/0.25 The trend now gives the training data the biggest sets. Make sure the dev and test set are coming from the same distribution. For example if cat training pictures is from the web and the dev/test pictures are from