FluxML/Zygote.jl

gradient of keyword argument?

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#446 opened on Jan 6, 2020

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Description

Is there any ways to compute the backward gradient of a keyword argument? For example, the var function can pass a pre-computed mean value as a keyword argument, but right now it seems like we can't get the gradient of it. This will have an effect on something like Flux.normalise.

Contributor guide

Research direction
Research how Zygote currently handles gradients for keyword arguments in functions like `var`. Look at the source code of `var` and `Flux.normalise` to understand the issue.
Tech stack
julia
Domain
machine learning
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
JuliaZygote
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
30