Moment Matching Denoising Gibbs Sampling

However, training and sampling from EBMs continue to pose significant challenges. The widely-used Denoising Score Matching (DSM) method [40] for scalable EBM training suffers from inconsistency issues, causing the energy model to learn a'noisy' data distribution. In this work, we propose an efficient sampling framework, (pseudo)-Gibbs sampling with moment matching, which enables effective sampling from the underlying clean model when given a'noisy' model that has been well-trained via DSM. We explore the benefits of our approach compared to related methods and demonstrate how to scale the method to high-dimensional datasets.