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Jan, 2023
扩散模型的数学
On the Mathematics of Diffusion Models
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David McAllester
TL;DR
该论文通过高斯分布得出扩散模型的微分方程和似然函数,分析了前向和后向随机微分方程及似然函数的变分自编码器和分数匹配方法,得到了反扩散常微分方程和基于噪声级别参数化的一族反扩散随机微分方程。
Abstract
This paper attempts to present the
stochastic differential equations
of
diffusion models
in a manner that is accessible to a broad audience. The diffusion process is defined over a population density in R^d. Of p
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