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I have a question about the sampling implementation. First of all, what is the difference between diffusion_utils_2 and diffusion_utils_2? I think diffusion_utils_2 is only used for cifar unconditional part. But the difference seems to be larger than that.
Another question is about the difference between current implementation and Algorithm 2 in the paper. If I understand correctly, predict_start_from_noise predicts p(x_0|x_t) and then q_posterior predicts x_{t-1} using equation 7 in the paper. This is different compare to algorithm 2, where equation 11 is used. Are those two equivalent? Or which one is better(stable)?
Thanks!
The text was updated successfully, but these errors were encountered:
Hi, thanks for sharing this great work.
I have a question about the sampling implementation. First of all, what is the difference between
diffusion_utils_2
anddiffusion_utils_2
? I thinkdiffusion_utils_2
is only used for cifar unconditional part. But the difference seems to be larger than that.Another question is about the difference between current implementation and Algorithm 2 in the paper. If I understand correctly,
predict_start_from_noise
predictsp(x_0|x_t)
and thenq_posterior
predictsx_{t-1}
using equation 7 in the paper. This is different compare to algorithm 2, where equation 11 is used. Are those two equivalent? Or which one is better(stable)?Thanks!
The text was updated successfully, but these errors were encountered: