Installation guide of keras in a python virtual environment in ubuntu
http://thelazylog.com/install-python-as-local-user-on-linux/
http://notes.webutvikling.org/get-python-virtualenv-pip-without-sudo/
Problem with bashrc in ubuntu?
https://askubuntu.com/questions/504546/error-message-source-not-found-when-running-a-script
https://elpuig.xeill.net/Members/rborrell/articles/los-archivos-bashrc-bash_profile-etc-bashrc-etc-profile-los-archivos-bashrc-bash_profile-etc-bashrc-etc-profile-cual-utilizar (Spanish)
https://realpython.com/blog/python/python-virtual-environments-a-primer/
http://exponential.io/blog/2015/02/10/install-virtualenv-and-virtualenvwrapper-on-ubuntu/
https://rukbottoland.com/blog/tutorial-de-python-virtualenv/ (Spanish)
https://rukbottoland.com/blog/tutorial-de-python-virtualenvwrapper/ (Spanish)
How to configure PyCharm to use virtualenv?
http://exponential.io/blog/2015/02/10/configure-pycharm-to-use-virtualenv/
Keras + TensorFlow
http://www.pyimagesearch.com/2016/11/14/installing-keras-with-tensorflow-backend/
Keras + Theano
http://www.pyimagesearch.com/2016/07/18/installing-keras-for-deep-learning/
Keras documentation
Keras package in R
https://cran.r-project.org/web/packages/kerasR/kerasR.pdf
http://machinelearningmastery.com/tutorial-first-neural-network-python-keras/
https://www.oreilly.com/learning/getting-started-with-deep-learning-using-keras-and-python-new
http://machinelearningmastery.com/time-series-prediction-lstm-recurrent-neural-networks-python-keras/
https://www.analyticsvidhya.com/blog/2016/10/tutorial-optimizing-neural-networks-using-keras-with-image-recognition-case-study/
http://ermaker.github.io/blog/2015/09/15/very-simple-example-of-keras-with-jupyter.html
https://www.packtpub.com/books/content/training-neural-networks-efficiently-using-keras
https://elitedatascience.com/keras-tutorial-deep-learning-in-python
http://www.jakob-aungiers.com/articles/a/LSTM-Neural-Network-for-Time-Series-Prediction
https://keras.io/getting-started/sequential-model-guide/#examples