How to draw a fraction of variance-diffusion timestep map?

[D1scowolf]

Hello! Thanks for your amazing work! I don't quite understand from your description in the paper about how the fraction of variance-diffusion timestep map is drawn. Could you give me more details or provide the related code?

Thanks!

[stefan-baumann]

We computed the features at t=0 ("x_0 features") and t=999 ("epsilon features"). Then, we performed a linear regression to determine the coefficients that best approximate the features obtained at a specific t with the two other features. Finally, we just computed the variance of the two scaled features used to approximate the timestep-dependent feature alongside the variance of the approximation error.