elbo专题

Understanding Diffusion Objectives as the ELBO with Simple Data Augmentation

Understanding Diffusion Objectives as the ELBO with Simple Data Augmentation 引言 本文前作 VDM 已经推导出了扩散模型可以将优化 ELBO 作为目标函数。然而现在 FID (也就是感知质量)最好的模型还是用的其他目标函数(如 DDPM 的噪声预测和 Score-base Model 的得分匹配),本文证明了这些其他

【Deep Learning】Variational Autoencoder ELBO:优美的数学推导

Variational Autoencoder In this note, we talk about the generation model, where x x x represents the given dataset, z z z represents the latent variable, θ , ϕ \theta,\phi θ,ϕ denote the parameter