Arbitrary deep network structures in Keras

Question

I'm new to Keras. Is it possible to write arbitrary deep learning graph structures using Keras (say something like Faster R-CNN model)?

Answer 1

Yes, Keras 1.0 has the functional API, and older versions of Keras have a graph API. Implementing Faster R-CNN with them is pretty easy.

More information at this guide. You should prefer the functional API since it is easier to use and the prefered way. The Graph API was removed in Keras 1.0 I believe.