Just finishing off lesson 4 too and working some of the new techniques into my model. Still it's a bit frustrating, the "guessing" aspect, which isn't supposed to be guessing but I mix of knowledge and learned experience
Mostly of the time I get something that looks like this (after 30-ish epochs and it just stays):
loss: 1.3991 - acc: 0.3731 - val_loss: 1.2429 - val_acc: 0.5333
Then I get a "Now what?" scenario - Is it just a matter of running more epochs and patience or do I re-evaluate my model architecture?
My plan now is to spend the weekend with a hot new model, take her for a spin and hope it's the beginning of a great new relationship (along with 200+ epochs)!
But after that, onto lesson 4 readings and then lesson 5.