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From "Yanbo Liang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-10078) Vector-free L-BFGS
Date Fri, 06 Jan 2017 16:08:58 GMT

    [ https://issues.apache.org/jira/browse/SPARK-10078?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15804882#comment-15804882
] 

Yanbo Liang commented on SPARK-10078:
-------------------------------------

[~sethah] The description is a little misleading, it means the VL-BFGS implementation can
fit the current API. Feature partitioning (VL-BFGS) or not (Breeze LBFGS) will be choose automatically
depends on the number of features. The purpose of VL-BFGS is not to replace Breeze LBFGS,
but as a complementary method. Thanks.

> Vector-free L-BFGS
> ------------------
>
>                 Key: SPARK-10078
>                 URL: https://issues.apache.org/jira/browse/SPARK-10078
>             Project: Spark
>          Issue Type: New Feature
>          Components: ML
>            Reporter: Xiangrui Meng
>            Assignee: Yanbo Liang
>
> This is to implement a scalable version of vector-free L-BFGS (http://papers.nips.cc/paper/5333-large-scale-l-bfgs-using-mapreduce.pdf).
> Design document:
> https://docs.google.com/document/d/1VGKxhg-D-6-vZGUAZ93l3ze2f3LBvTjfHRFVpX68kaw/edit?usp=sharing



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