Listing 7.20 Custom Callback (2nd edition)

[steval88]

Dear Francois

there's a small typo in Listing 7.20 on page 190. In model.fit(), epochs is set to 10, but to be consistent with Figure 7.5, it should be epochs=1

Best

Stefano

[steval88]

I was double-checking : it's actually not a typo, but if you run Listing 7.20 on jupyter without changing the epoch number, it yields the last training loss at epoch=9. However, you can retrieve the training loss from the plots which are created and stored in your local folder for each epoch. Steady state loss is around 0.07 at epoch=9 after 200-400 batches. Maybe adding some comments about the different behaviors (e.g. for small batch numbers for different epoch numbers) would have been interesting