Unixcop published a tutorial about installing Keras with TensorFlow backend on Ubuntu.

How to Install Keras With TensorFlow Backend on Ubuntu

Keras is an open-source software library that provides a Python interface for artificial neural networks. Keras acts as an interface for the TensorFlow library. It is a neural network library based on the Python programming language designed to simplify machine-learning applications. Keras runs on top of frameworks such as TensorFlow. 

How to Install Keras With TensorFlow Backend on Ubuntu - Unixcop