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r=0? #14

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@cxw-droid

Hi, thank you for your paper and sharing the code. May I ask some questions?

  1. In the code below

    r = self.t_to_r(t)

    Is it possible for r to be exactly 0? it seems it is approaching 0, but not exactly 0. If it cannot get value 0, how the consistency model knows the ground truth x_0? I am not sure if there is some misunderstanding here.

  2. In the original consistency models paper, the minimum t is 0.002 and in this paper it can be 0. Would you like to expand more on the difference here? Thanks.

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