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Score-Based Generative Modeling through Stochastic Differential Equations

ICLR 2021 · Image generation › Fast diffusion sampling · approach: Distributional control of diffusion · 1,252 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
use the deeper NCSN++ architecture with the continuous objective (ablation)NCSN++ with VE SDE · CIFAR-10FID: 2.45 -> 2.20Helped
use the continuous objective without increasing depth (ablation)NCSN++ with VE SDE · CIFAR-10FID: 2.45 -> 2.38Helped
use a continuous objective and sub-VP rather than VP (ablation)DDPM++ · CIFAR-10 uniformly dequantized testNLL (bits/dim): 3.16 -> 3.02Helped
increase depth and use sub-VP rather than VP (ablation)DDPM++ cont. · CIFAR-10 uniformly dequantized testNLL (bits/dim): 3.16 -> 2.99Helped
use sub-VP rather than VP (ablation)DDPM++ cont. · CIFAR-10FID: 2.55 -> 2.61Mixed
increase network depth (ablation)DDPM++ cont. (sub-VP) · CIFAR-10 uniformly dequantized testNLL (bits/dim): 3.02 -> 2.99Helped
add one corrector step per predictor step (ablation)VE SDE predictor-only sampler · CIFAR-10FID: 4.79 ± .07 -> 3.60 ± .02Helped
add one corrector step per predictor step (ablation)VP SDE predictor-only sampler · CIFAR-10FID: 3.21 ± .02 -> 3.18 ± .01Helped
use reverse diffusion rather than ancestral sampling (ablation)VE SDE predictor-only sampler · CIFAR-10FID: 4.98 ± .06 -> 4.79 ± .07Helped
use reverse diffusion rather than ancestral sampling (ablation)VP SDE predictor-only sampler · CIFAR-10FID: 3.24 ± .02 -> 3.21 ± .02Helped
use corrector-only sampling instead of predictor-only sampling (ablation)VE SDE · CIFAR-10FID: 4.88 ± .06 -> 20.43 ± .07Hurt
use corrector-only sampling instead of predictor-only sampling (ablation)VP SDE · CIFAR-10FID: 3.24 ± .02 -> 19.06 ± .06Hurt

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