What are some advanced features of Keras I can use in my projects?
Keras offers several advanced features like custom callbacks, functional API, and model subclassing. Would you like to explore any specific feature?
Can you explain how to use the functional API?
Sure! The functional API allows you to create complex models by defining the input and output layers explicitly. You can connect layers in a more flexible way compared to the sequential model.
What are custom callbacks and how do I implement them?
Custom callbacks in Keras let you execute specific actions at various stages of training. You can create a class that inherits from keras.callbacks.Callback
and override methods like on_epoch_end
.
Can you give me an example of a custom callback?
Absolutely! Here's a simple example that prints the learning rate at the end of each epoch:
class LearningRateLogger(keras.callbacks.Callback):
def on_epoch_end(self, epoch, logs=None):
print(f'Learning rate at epoch {epoch}: {self.model.optimizer.lr}')
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