Normalizing Flow

This is an idea that I saw Billy Zheng write about https://hongruizheng.com/2020/03/13/normalizing-flow.html

Actually, he mentions it in the FormulaZero paper, where he cites this repo: https://github.com/kamenbliznashki/normalizing_flows

Normalizing flow gives you an explicit representation of density functions.

• Kernel Density Estimation

Used a lot in Generative Model.