[SPARK-21523] Fix bug of strong wolfe linesearch `init` parameter lose effectiveness

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.2.0
• Fix Version/s: 2.2.1, 2.3.0
• Component/s: MLlib
• Target Version/s: 2.2.1
• Assignee: Weichen Xu
• Reporter: Weichen Xu
• Created: 24/Jul/17 22:56
• Updated: 14/Sep/17 22:10
• Resolved: 09/Aug/17 06:49

Description

We need merge this breeze bugfix into spark because it influence a series of algos in MLlib which use LBFGS.
https://github.com/scalanlp/breeze/pull/651

Issue Links

• is duplicated by: SPARK-21614 Multinomial logistic regression model fitting fails with ERROR StrongWolfeLineSearch
• is duplicated by: SPARK-21919 inconsistent behavior of AFTsurvivalRegression algorithm
• links to: [Github] Pull Request #18797 (WeichenXu123)