BWhat changed
Integrated the linear part of diffusion dynamics analytically and approximated the noise-prediction contribution with extrapolation, reducing discretization cost for pretrained score-based models.
Scientific scope
Integrated the linear part of diffusion dynamics analytically and approximated the noise-prediction contribution with extrapolation, reducing discretization cost for pretrained score-based models. Inherits exponential integration, diffusion probability-flow equations and noise parameterization. Exact-score marginal equivalence does not eliminate learned-score error or finite-step discretization error. Plain frozen-score exponential Euler can perform poorly; parameterization and step selection matter.
Evidence
The linked original sources describe the stated contribution and its evidence limits. WRS has not independently rerun the experiments or certified a proof. Inherits exponential integration, diffusion probability-flow equations and noise parameterization. Exact-score marginal equivalence does not eliminate learned-score error or finite-step discretization error. Plain frozen-score exponential Euler can perform poorly; parameterization and step selection matter.
Contributors
- Source-listed authors and technical contributors · SCIENCE: Source-listed authors or explicitly credited technical contributors for the cited versions. Family entries retain source-specific attribution; a combined list is not one original-paper byline or equal individual work. Names alone do not establish resolved identities.
Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.
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