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Posted to issues@flink.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2018/07/26 00:10:00 UTC
[jira] [Commented] (FLINK-9664) FlinkML Quickstart Loading Data
section example doesn't work as described
[ https://issues.apache.org/jira/browse/FLINK-9664?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16556434#comment-16556434 ]
ASF GitHub Bot commented on FLINK-9664:
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walterddr opened a new pull request #6425: [FLINK-9664][Doc] fixing documentation in ML quick start
URL: https://github.com/apache/flink/pull/6425
## What is the purpose of the change
* Fix documentation to explicitly specify that +1 and -1 is required when using SVM library in flink-ml
## Brief change log
* Added explicit conversion requirement in document
## Verifying this change
* n/a
## Does this pull request potentially affect one of the following parts:
* n/a
## Documentation
* n/a
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> FlinkML Quickstart Loading Data section example doesn't work as described
> -------------------------------------------------------------------------
>
> Key: FLINK-9664
> URL: https://issues.apache.org/jira/browse/FLINK-9664
> Project: Flink
> Issue Type: Bug
> Components: Documentation, Machine Learning Library
> Affects Versions: 1.5.0
> Reporter: Mano Swerts
> Assignee: Rong Rong
> Priority: Major
> Labels: documentation-update, machine_learning, ml, pull-request-available
> Original Estimate: 1h
> Remaining Estimate: 1h
>
> The ML documentation example isn't complete: [https://ci.apache.org/projects/flink/flink-docs-release-1.5/dev/libs/ml/quickstart.html#loading-data]
> The referred section loads data from an astroparticle binary classification dataset to showcase SVM. The dataset uses 0 and 1 as labels, which doesn't produce correct results. The SVM predictor expects -1 and 1 labels to correctly predict the label. The documentation, however, doesn't mention that. The example therefore doesn't work without a clue why.
> The documentation should be updated with an explicit mention to -1 and 1 labels and a mapping function that shows the conversion of the labels.
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