JuliaGaussianProcesses / JuliaGaussianProcesses/KernelFunctions.jl
MaternKernel AD
Nobody has claimed this yet.
- Dominant language
- Julia
- Stars
- 275
- Forks
- 41
- PR merge metrics
- No merged PRs in 30d
Description
https://github.com/JuliaGaussianProcesses/KernelFunctions.jl/pull/425 makes it possible to AD through the MaternKernel by dropping the derivative w.r.t. \nu. We tried ensuring that it returns a NotImplemented, but Zygote doesn't appear to handle it properly, returning a nothing, rather than NotImplemented.
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 reading pull request 425 and the MaternKernel automatic-differentiation handling. Reproduce the Zygote behavior described in the issue and compare how NotImplemented and nothing are propagated. Done means the intended unsupported derivative behavior is handled correctly when differentiating through MaternKernel.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- julia
- Domain
- machine-learning
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 30/100