Discrete (mixed) density estimators
For discrete (mixed) parameters.
Can probably recycle a lot of code from MNLE.
Yes, MNLE implements a mixed estimator with a categorical distribution. It would be nice to extend this to discrete flows as well.
Related to #968
happy to work on this during the hackathon
The MNLE classes are now refactored to match the API of the other build functions, including z-scoring and embedding nets. Thus, in principle, one can now also use the MNLE setup for posterior inference. However, it allows only for a single discrete column in x (theta).
An autoregressive density estimator on top would be the solution, see #1112
We now have discrete estimators for multiple dimensions, see #1269
and this issue will be fixed by #1362
fixed by https://github.com/sbi-dev/sbi/pull/1362
Potentially one could open a new issue for mixed in the sense of some dimensions are estimated with one network and other with another network.