ENCORE: Exact Non-equilibrium COntrol with Replica Exchange for Diffusion Generation
Inference-time control steers a pretrained generative model towards a target distribution without retraining. We study tilted targets $\pi_0\propto G_0\,p_0$, where $p_0$ is the sampler output distribution and $G_0$ is an evaluable reweighting function.
arXiv - stat.ML2 min read