Other diffusion models about diffusion-classifier

[pengzhangzhi]

I am not the author. Based on my understanding, the authors propose an algorithm that leverages the discriminative ability of existing diffusion models for classification tasks. That means the performance is determined by the algorithm used and the diffusion models. And I personally think diffusion models are more important to the performance improvements. Nonetheless, developing effective algorithm is still valuable. That is why I ask the author to compare with exact log-likelihood, another alg, see #2

[Svithjod]

@pengzhangzhi Hi, thanks for your reply! I've just checked #2 and the Score SDE paper, and found your observation quite inspiring. It seems there's some inherent connection between probability flow ODE and class discrimination. As the auther stated in #2 , how to effectively and efficiently estimate log-likelihood could be a problem to be solved next.