Appendix A: Introduction to Keras
Keras is an API designed to make developing neural network easy for humans. It is also the API that we use throughout this book. The goal of this appendix is not to cover all aspects of Keras (surely the space would not be enough), but to give you the minimum amount of information that you need to understand the code in this book and then point you to resources where you can find more. If you want to learn everything about Keras, the most efficient way is to study the book Deep Learning with Python by François Chollet and to read the official documentation at https://keras.io.
In a few words, citing F. Chollet,1 “TensorFlow is an infrastructure layer for differentiable programming, dealing with tensors, variables, ...