How do you calculate accuracy in paper?

[Luciennnnnnn]

For example, in Figure 5 (b), you plot the D's accuracy on T(x), T(G(z)), and G(z), I wonder how this metric was calculated. After each update of discriminator or after each update of discriminator and generator?

[zsyzzsoft]

The accuracy is computed periodically, not at every iteration. By the way, I believe that the two ways you mentioned do not make much difference. You can refer to train_fns.py for details.