Battle of the Deep Learning frameworks -- Part I: 2017, even more frameworks and interfaces

The deep learning landscape is constantly changing. Theano was the first widely adopted deep learning framework, created and maintained by MILA-- headed by Yoshua Bengio, one of the pioneers of deep learning. In September of this year MILA announced that there will be no further development work on Theano in 2018 after releasing the latest version. The news didn't come as a surprise. In the past years different open source Python deep learning frameworks were introduced, often developed or backed by one of the big tech companies, and some got a lot of traction.