DDIM sampling eta setting

[pinecho]

Hi, thanks for your great work.
I noticed that you applied DDIM sampling method in your code, with the setting:

DiffusionDet/diffusiondet/detector.py

Line 97 in 1efb36d

self.ddim_sampling_eta = 1.

I found ETA controls the scale of the variance (0 is DDIM, and 1 is one type of DDPM). from https://github.com/ermongroup/ddim
It seems that eta=1 means DDPM.
May I ask if your eta is the same as the one from ermongroup?

[ShoufaChen]

Hi,

Thanks for your interest.

We have experimented with several eta values. The results demonstrate that eta has negligible influence on the final results. Therefore, we adopt ddim_sampling_eta = 1. as our default setting.