JuliaDiff / JuliaDiff/DifferentiationInterface.jl

Use Jacobian of gradient for Hessian

Open
#959 0 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

core
Dominant language
Julia
Stars
313
Forks
35
PR merge metrics
No merged PRs in 30d

Description

Right now, HVPs are computed individually and assembled, but this was only useful for the sparse case

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by locating the code that computes HVPs individually and assembles them, as described in the issue. Determine how the Jacobian of the gradient should replace that path while retaining the sparse-case behavior; done means Hessian computation uses the proposed approach and existing behavior remains covered.

Written by the indexing model from the issue text.

Assessment

Tech stack
julia
Domain
backend
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.