For further Keras information, the reader is encouraged to look at the following resources:
- Official Keras documentation: https://keras.io/
- TensorFlow Keras Tutorial: https://www.tensorflow.org/guide/keras
- "An Introduction to Keras", a guest lecture by Francois Chollet at Standford (slides in a PDF): https://web.stanford.edu/class/cs20si/lectures/march9guestlecture.pdf