Probabilistic Models, Sampling Methods, Machine Learning, Editors Pick, Hands On Tutorials.
a family of Gaussians of one constant 𝝈 but iteration-dependent 𝝁, for example, we simplify the computation of the 𝞪 value due to the symmetry this dependency introduces, as q(Φᵢ-₁| Φ*) = q(Φ* | Φᵢ-₁). The value of 𝝈 in such cases is also referred to as the step-size, which is a hyperparameter one