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https://issues.apache.org/jira/browse/HIVEMALL-234?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Makoto Yui closed HIVEMALL-234.
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Resolution: Fixed
> Fix mismatched default value between EtaEstimator and UDF option description
> ----------------------------------------------------------------------------
>
> Key: HIVEMALL-234
> URL: https://issues.apache.org/jira/browse/HIVEMALL-234
> Project: Hivemall
> Issue Type: Improvement
> Affects Versions: 0.5.0, 0.5.2
> Reporter: Takuya Kitazawa
> Assignee: Takuya Kitazawa
> Priority: Minor
> Fix For: 0.6.0
>
>
> UDF option description sometimes tells a lie:
> * `train_mf_sgd` says default value of `eta0` is 0.2:
> [https://github.com/apache/incubator-hivemall/blob/7b61a3be8178fef40154f4009fef2989a9fd4c49/core/src/main/java/hivemall/mf/MatrixFactorizationSGDUDTF.java#L44]
> * But `EtaEstimator` actually uses 0.1 as a default value:
> [https://github.com/apache/incubator-hivemall/blob/31932fd7c63f9bb21eba8959944d03f280b6deb9/core/src/main/java/hivemall/optimizer/EtaEstimator.java#L153]
> In order to avoid those mismatched cases, define EtaEstimator's default
> values as constants, and directly refer them from `getOptions`.
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