You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@lucene.apache.org by "Timothy Garafola (JIRA)" <ji...@apache.org> on 2015/07/22 00:03:07 UTC
[jira] [Commented] (SOLR-5379) Query-time multi-word synonym
expansion
[ https://issues.apache.org/jira/browse/SOLR-5379?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14635899#comment-14635899 ]
Timothy Garafola commented on SOLR-5379:
----------------------------------------
Is there a status on this issue? Did it get moved forward to 5.x? Is it available in 4.10?
> Query-time multi-word synonym expansion
> ---------------------------------------
>
> Key: SOLR-5379
> URL: https://issues.apache.org/jira/browse/SOLR-5379
> Project: Solr
> Issue Type: Improvement
> Components: query parsers
> Reporter: Tien Nguyen Manh
> Labels: multi-word, queryparser, synonym
> Fix For: 4.9, Trunk
>
> Attachments: conf-test-files-4_8_1.patch, quoted-4_8_1.patch, quoted.patch, solr-5379-version-4.10.3.patch, synonym-expander-4_8_1.patch, synonym-expander.patch
>
>
> While dealing with synonym at query time, solr failed to work with multi-word synonyms due to some reasons:
> - First the lucene queryparser tokenizes user query by space so it split multi-word term into two terms before feeding to synonym filter, so synonym filter can't recognized multi-word term to do expansion
> - Second, if synonym filter expand into multiple terms which contains multi-word synonym, The SolrQueryParseBase currently use MultiPhraseQuery to handle synonyms. But MultiPhraseQuery don't work with term have different number of words.
> For the first one, we can extend quoted all multi-word synonym in user query so that lucene queryparser don't split it. There are a jira task related to this one https://issues.apache.org/jira/browse/LUCENE-2605.
> For the second, we can replace MultiPhraseQuery by an appropriate BoleanQuery SHOULD which contains multiple PhraseQuery in case tokens stream have multi-word synonym.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: dev-help@lucene.apache.org