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Today I learned

·1 min

Fastai:

  1. Validation vs test data:

    1. Validation set: used actively during training to calculate and minimize loss.
    2. Test set: (at least in Fastai) it is used unlabeled, the assumption being that we need to predict on test data using our trained model.

  2. Force GC (i.e. garbage collection) in Python:

    learn = None

import gc
gc.collect()