Groups
The reparameterization trick rewrites a random variable as a deterministic function of noise that does not depend on the parameters, such as z = ฮผ + ฯ ยท ฮต with ฮต ~ N(0, 1).
The Evidence Lower Bound (ELBO) is a tractable lower bound on the log evidence log p(x) that enables learning and inference in latent variable models like VAEs.