most of the samples there are a few other things that you can do to try to make sure that the coordination between the generator and the discriminator works out correctly in particular we really want the discriminator to always do a good job of estimating that ratio we want the discriminator you really up to date and to have fit really well to the latest changes to the generator that motivates running the update on the discriminator more often than the update on the generator some people still do this I don't usually