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https://issues.apache.org/jira/browse/LUCENE-7287?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15298470#comment-15298470
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Andriy Rysin commented on LUCENE-7287:
--------------------------------------

Quick check via jvisualvm shows ~400MB used by the dictionary map. The 
dictionary originally is coming from https://github.com/arysin/dict_uk, that 
project developed from Ukrainian hunspell dictionary (which was very compact: 
on average each hunspell flag was producing 12 words) but diverged a bit and 
now the system of affixes in dict_uk is not compatible with that in hunspell.
I have on my TODO to add a convertor to produce hunspell dictionary from 
dict_uk sources. If that helps here (I'm not familiar with hunspell token 
filter in lucene) I could put it a bit higher in my priority.

> New lemma-tizer plugin for ukrainian language.
> ----------------------------------------------
>
>                 Key: LUCENE-7287
>                 URL: https://issues.apache.org/jira/browse/LUCENE-7287
>             Project: Lucene - Core
>          Issue Type: New Feature
>          Components: modules/analysis
>            Reporter: Dmytro Hambal
>            Priority: Minor
>              Labels: analysis, language, plugin
>
> Hi all,
> I wonder whether you are interested in supporting a plugin which provides a 
> mapping between ukrainian word forms and their lemmas. Some tests and docs go 
> out-of-the-box =) .
> https://github.com/mrgambal/elasticsearch-ukrainian-lemmatizer
> It's really simple but still works and generates some value for its users.
> More: https://github.com/elastic/elasticsearch/issues/18303



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