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junyanz / CycleGAN

Software that can generate photos from paintings, turn horses into zebras, perform style transfer, and more.
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Generator try to maximize and Discriminator try to minimize #103

Closed Auth0rM0rgan closed 5 years ago

Auth0rM0rgan commented 5 years ago

Hi, I am training a CycleGAN but the log file(Tensorbaord scalar) for both G and D is confusing to me. As it written in the paper, G aims to minimize the objective against an adversary D that tries to maximize it.

At the beginning of training, G is tried to minimize but after 60 epochs start to maximize also D is tried to maximize at the beginning and then start to minimize after epoch 60. I want to know the intuition behind of it. any idea?

should not model to minimize G and maximize D all the time, why after some epochs generators start to maximize and discriminator minimize?

Tensorboard scalar: https://imgur.com/rdTxrUP

Thanks in advance.