Created
January 26, 2021 17:22
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| def lr_scheduler(epoch, lr, warmup_epochs=15, decay_epochs=100, initial_lr=1e-6, base_lr=1e-3, min_lr=5e-5): | |
| if epoch <= warmup_epochs: | |
| pct = epoch / warmup_epochs | |
| return ((base_lr - initial_lr) * pct) + initial_lr | |
| if epoch > warmup_epochs and epoch < warmup_epochs+decay_epochs: | |
| pct = 1 - ((epoch - warmup_epochs) / decay_epochs) | |
| return ((base_lr - min_lr) * pct) + min_lr | |
| return min_lr | |
| callbacks += [keras.callbacks.LearningRateScheduler(partial(lr_scheduler, ...), verbose=0)] |
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Could you provide a example to the code?