A more efficient approach

[camigord]

Hi @carpedm20,

your code helped me a lot when I was just starting to understand NTMs and I am therefore very grateful for your contribution.

Recently, I found out about the Differential Neural Computer implementation from Mostafa-Samir. He approaches the problem of having different sequence lengths in a different way using some dynamic functions provided by TensorFlow. This code, clearly, results to be more efficient than the reference code you have provided.

I decided to replicate the NTM implementation following the same approach and I ended up with this. I have made the proper references to your code and approach. I hope you don't mind.

Best,