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https://issues.apache.org/jira/browse/LUCENE-10493?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17519870#comment-17519870
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Tomoko Uchida commented on LUCENE-10493:
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I opened the main PR: https://github.com/apache/lucene/pull/805.
Please see its description for the design specification and the current
limitation (those will be deferred to future work).
It's still a draft but is already self-contained and works correctly (for me).
Feedback is welcome.
> Can we unify the viterbi search logic in the tokenizers of kuromoji and nori?
> -----------------------------------------------------------------------------
>
> Key: LUCENE-10493
> URL: https://issues.apache.org/jira/browse/LUCENE-10493
> Project: Lucene - Core
> Issue Type: Improvement
> Components: modules/analysis
> Reporter: Tomoko Uchida
> Priority: Major
> Time Spent: 1h
> Remaining Estimate: 0h
>
> We now have common dictionary interfaces for kuromoji and nori
> ([LUCENE-10393]). A natural question would be: is it possible to unify the
> Japanese/Korean tokenizers?
> The core methods of the two tokenizers are `parse()` and `backtrace()` to
> calculate the minimum cost path by Viterbi search. I'd set the goal of this
> issue to factoring out them into a separate class (in analysis-common) that
> is shared between JapaneseTokenizer and KoreanTokenizer.
> The algorithm to solve the minimum cost path itself is of course
> language-agnostic, so I think it should be theoretically possible; the most
> difficult part here might be the N-best path calculation - which is supported
> only by JapaneseTokenizer and not by KoreanTokenizer.
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