tensorflow / tensorflow/probability

Feature request: Adding Backtracking Line Search

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Description

I noticed that the line search function had the Hager Zhang search built in and I was wondering if it's ok to add the Backtracking Line search Algorithm to it as algorithms such as FISTA and ISTA use it?

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Research direction

The issue names no file, test, or entry point; start by locating the existing Hager Zhang line-search implementation. Clarify the intended Backtracking Line Search API and its relationship to FISTA and ISTA, then define the integration and validation requirements before implementation.

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Assessment

Domain
machine-learning
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

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