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https://issues.apache.org/jira/browse/SOLR-10263?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16080979#comment-16080979
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James Dyer commented on SOLR-10263:
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[~asingh2411] , Have you tried using the two parameters,
"spellcheck.alternativeTermCount" and "spellcheck.maxCollationTries" to solve
your problem? The first parameter will tell it to offer some suggestions even
when a term is in the index. The second parameter will query the suggestion
combinations against the index internally, to find corrections that return
results.
This way even if "gold" and "mine" are valid terms in your index, specifying
"alternativeTermCount" will suggest up to your specified number of alternatives
for each of these. Then, by specifying "maxCollationTries", it will try up to
your specified number of combinations until it finds valid results.
Using the existing features like this might be a better solution than to add
the level of complexity to the component that you are suggesting here.
> Different SpellcheckComponents should have their own suggestMode
> ----------------------------------------------------------------
>
> Key: SOLR-10263
> URL: https://issues.apache.org/jira/browse/SOLR-10263
> Project: Solr
> Issue Type: Wish
> Security Level: Public(Default Security Level. Issues are Public)
> Components: spellchecker
> Reporter: Abhishek Kumar Singh
> Priority: Minor
> Attachments: SOLR-10263.v2.patch
>
>
> As of now, common spellcheck options are applied to all the
> SpellCheckComponents.
> This can create problem in the following case:-
> It may be the case that we want *DirectSolrSpellChecker* to ALWAYS_SUGGEST
> spellcheck suggestions.
> But we may want *WordBreakSpellChecker* to suggest only if the token is not
> in the index (for relevance or performance reasons)
> (SUGGEST_WHEN_NOT_IN_INDEX) .
> *UPDATE : * Recently, we also figured out that, for
> {{WordBreakSolrSpellChecker}} also, both - The {{WordBreak}} and {{WordJoin}}
> should also have different suggestModes.
> We faced this problem in our case, wherein, Most of the WordJoin cases are
> those where the words individually are valid tokens, but what the users are
> looking for is actually a combination (wordjoin) of the two tokens.
> For example:-
> *gold mine sunglasses* : Here, both *gold* and *mine* are valid tokens. But
> the actual product being looked for is *goldmine sunglasses* , where
> *goldmine* is a brand.
> In such cases, we should recommend {{didYouMean:goldmine sunglasses}} . But
> this wont be possible because we had set {{SUGGEST_WHEN_NOT_IN_INDEX}} for
> {{WordBreakSolrSpellChecker}} (of which, WordJoin is a part) .
> For this, we should have separate suggestModes for both `wordJoin` as well as
> `wordBreak`.
> Related changes have been done at Latest PR. :
> https://github.com/apache/lucene-solr/pull/218.
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