GitHub user takuti opened a pull request:
https://github.com/apache/incubator-hivemall/pull/149
[WIP][HIVEMALL-201] Evaluate, fix and document FFM
## What changes were proposed in this pull request?
- Evaluate FFM so Hivemall replicates comparable accuracy to
[LIBFFM](https://github.com/guestwalk/libffm).
- Fix its implementation if needed
- Document how to use FFM
## What type of PR is it?
Bug Fix, Improvement, Documentation
## What is the Jira issue?
https://issues.apache.org/jira/browse/HIVEMALL-201
## How was this patch tested?
Unit tests and manual tests
## How to use this feature?
(To be documented)
## Checklist
- [x] Did you apply source code formatter, i.e., `mvn formatter:format`,
for your commit?
- [ ] Did you run system tests on Hive (or Spark)?
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/takuti/incubator-hivemall HIVEMALL-201
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-hivemall/pull/149.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #149
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commit c67744cbe60711a9cb9da5c55a4157f9d107dbf3
Author: Takuya Kitazawa <k.takuti@...>
Date: 2018-05-16T08:39:32Z
Use pre-defined constants in option description
commit d77f0161220327a4e2ef12f368f329dc56c1c941
Author: Takuya Kitazawa <k.takuti@...>
Date: 2018-05-16T08:40:48Z
Fix mismatch between opts.addOption and cl.getOptionValue
commit c8e374b8bfb87a0ed420604aca2340c974770f50
Author: Takuya Kitazawa <k.takuti@...>
Date: 2018-05-16T08:41:34Z
Support FFM feature format in `l1_normalize` and `l2_normalize`
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