tensorflow / tensorflow/probability
tfp.mcmc.NoUTurnSampler is not working with ReplicaExchangeMC
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Description
I get the error that indicates NUTs is not yet implemented for the ReplicaExchangeMC. Here is the error
REMCFieldNotFoundError: NUTSKernelResults( ) or a kernel result nested within it is currently not supported by the ReplicaExchangeMC kernel. Missing field proposed_results. Please file an issue on the TensorFlow Probability GitHub page.
This is a link https://colab.research.google.com/drive/1QQYIbH0-lWcxJGd2M5mwpAO-XDuwoWA3?usp=sharing
to a colab notebook with the error.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the error in the linked Colab notebook and tracing how ReplicaExchangeMC handles NUTSKernelResults, especially the missing proposed_results field. Done means NoUTurnSampler can be used with ReplicaExchangeMC without the reported REMCFieldNotFoundError.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- jupyter-notebook, python
- Domain
- machine-learning
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100