Non-centered parameterization of a beta distribution?

[chartl]

While I was searching for something completely unrelated, I came across this old thread about beta parametrization, and it links through to “implicit normalization of gradients”:

@junpenglao

You can have a look at the recent paper Implicit Reparameterization Gradients , many of the tricks should also apply. Also see https://en.wikipedia.org/wiki/Beta_distribution#Related_distributions