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Posted to issues@ignite.apache.org by "Aleksey Zinoviev (JIRA)" <ji...@apache.org> on 2018/08/29 15:11:00 UTC
[jira] [Updated] (IGNITE-9145) [ML] Add different strategies to
index labels in StringEncoderTrainer
[ https://issues.apache.org/jira/browse/IGNITE-9145?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Aleksey Zinoviev updated IGNITE-9145:
-------------------------------------
Fix Version/s: (was: 2.7)
> [ML] Add different strategies to index labels in StringEncoderTrainer
> ---------------------------------------------------------------------
>
> Key: IGNITE-9145
> URL: https://issues.apache.org/jira/browse/IGNITE-9145
> Project: Ignite
> Issue Type: Improvement
> Components: ml
> Reporter: Aleksey Zinoviev
> Assignee: Aleksey Zinoviev
> Priority: Major
>
> The main idea to add a few strategies of indexing: sorting and so on.
> Currently it supports only one strategy (most popular with zero and less popular with the max index size).
> There are can be a few options
> * 'frequencyDesc': descending order by label frequency (most frequent label assigned 0)
> * 'frequencyAsc': ascending order by label frequency (least frequent label assigned 0)
> * 'alphabetDesc': descending alphabetical order
> * 'alphabetAsc': ascending alphabetical order
>
> Please, update the method **transformFrequenciesToEncodingValues and add the strategy as a parameter of trainer.
>
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