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Aug, 2022
基于得分的扩散遇上退火重要性采样
Score-Based Diffusion meets Annealed Importance Sampling
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Arnaud Doucet, Will Grathwohl, Alexander G. D. G. Matthews, Heiko Strathmann
TL;DR
本文介绍了使用分数比建模得到优化的扩展目标分布加上Langevin和Hamiltonian动力学离散化的AIS建议来估计边缘似然值的方法。
Abstract
More than twenty years after its introduction,
annealed importance sampling
(AIS) remains one of the most effective methods for
marginal likelihood estimation
. It relies on a sequence of distributions interpolati
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