[fyp]

An unexpected application of feistel network is for creating neural networks that are invertible!

https://arxiv.org/abs/1802.07088

[fvncc]

Another example is RealNVP, which has the same structure to enable inversion (partition, process half, then use the result to mutate the other half in an invertible way).

Sadly, I gather the computational performance Is pretty bad ..

https://arxiv.org/abs/1605.08803

[visarga]

Interesting, I was aware of this technique in deep learning but didn't know its origin!