Denoising Deep Generative Models
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Abstract (arXiv)
Likelihood-based deep generative models have recently been shown to exhibit pathological behaviour under the manifold hypothesis as a consequence of using high-dimensional densities to model data with low-dimensional structure. In this paper we propose two methodologies aimed at addressing this problem. Both are based on adding Gaussian noise to the data to remove the dimensionality mismatch during training, and both provide a denoising mechanism whose goal is to sample from the model as though no noise had been added to the data. Our first approach is based on Tweedie's formula, and the second on models which take the variance of added noise as a conditional input. We show that surprisingly, while well motivated, these approaches only sporadically improve performance over not adding noise, and that other methods of addressing the dimensionality mismatch are more empirically adequate.
Key facts. Cited by 6 papers in the map (data through 7 Oct 2026). Builds on 44 of its 63 references that are in the map. First posted on arXiv 30 Nov 2022.
Builds on
44 of 63 references.
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32 more
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Built on by
Citing papers per year: 2023: 3; 2024: 1; 2025: 1; 2026: 1.
6 papers.
- 2024Deep Generative Models through the Lens of the Manifold Hypothesis: A Survey and New Connectionscited by 47
- 2023Lifting Architectural Constraints of Injective Flowscited by 17
- 2023A Review of Change of Variable Formulas for Generative Modelingcited by 12
- 2023One-Line-of-Code Data Mollification Improves Optimization of Likelihood-based Generative Modelscited by 4
- 2025On Convolutions, Intrinsic Dimension, and Diffusion Modelscited by 2
- 2026From Core to Detail: Unsupervised Disentanglement with Entropy-Ordered Flowscited by 0
- 2026From Core to Detail: Unsupervised Disentanglement with Entropy-Ordered Flows6 Feb 2026
- 2025On Convolutions, Intrinsic Dimension, and Diffusion Models25 Jun 2025
- 2024Deep Generative Models through the Lens of the Manifold Hypothesis: A Survey and New Connections3 Apr 2024
- 2023A Review of Change of Variable Formulas for Generative Modeling4 Aug 2023
- 2023Lifting Architectural Constraints of Injective Flows2 Jun 2023
- 2023One-Line-of-Code Data Mollification Improves Optimization of Likelihood-based Generative Models30 May 2023