Rémi Louf

Results 291 issues of Rémi Louf

We can port https://github.com/dfm/rmhmc with the author's blessing. It should be relatively straightforward, difficulties may come from the changes needed to support PyTrees instead of flat arrays. Since the integrator...

enhancement
help wanted
sampler
important

Nested Rhat allows to assess the convergence of many chains that have run for only a few steps. https://arxiv.org/abs/2110.13017

enhancement
help wanted
important
adaptation
diagnostics

As discussed with the author of SGMCMCJax @jeremiecoullon we will be porting SGMCMCJax to blackjax. ## Gradient estimation - [x] Standard gradient estimator - [x] Control variate gradient estimator #299...

enhancement
help wanted
sampler
important

When #279 is merged we should be in a good position to add SMC-ABC algorithms. Some minor rethinking of the base SMC kernel may be required, but I expect it...

enhancement
help wanted
sampler
important

They are currently only tested as part of integration tests on full examples. They should be tested in isolation.

help wanted

`kernel.py` is growing very large and the size is only ever going to increase not only as we add new algorithms but also as we add documentation. The fact that...

There are a few things that I find unsatisfactory with the SMC base kernel: 1. The use of `kernel_factory`, which prevents the users from passing different parameters at different iterations....

The (coupled) structure of window adaptation is a consequence of the use of Welford's algorithm to estimate the covariance, the structure of the pathfinder adaptation is a consequence of the...

enhancement
help wanted
refactoring

The intent behind this function is unclear from a user perspective. `pathfinder` suffers from the same problem.

enhancement
refactoring