Unfortunately, Lucene's QueryParser pre-splits all incoming text on
whitespace, which means your search-time analyzer never has a chance
to detect the multi-word synonym. Ie, your analyzer is invoked twice.
Once with "exercise" and once with "dvds".
We need to fix that... but it's not exactly clear how. The
QueryParser/Analyzer interaction is tricky.
Mike
On Tue, Aug 3, 2010 at 12:34 PM, Qwerky <neil.j.tay...@hmv.co.uk> wrote:
>
> I'm having trouble getting multi word synonyms to work. As an example I have
> the following synonym;
>
> exercise dvds => fitness
>
> When I search for exercise dvds I want to return all docs in the index which
> contain the keyword fitness. I've read the wiki about
> solr.SynonymFilterFactory which recommends expanding the synonym when
> indexing, but I'm not sure this is what I want as none of my documents have
> the keywords exercise dvds.
>
> Here is the field definition from my schema.xml;
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> When I test my search with the analysis page on the admin console it seems
> to work fine;
>
> Query Analyzer
> org.apache.solr.analysis.WhitespaceTokenizerFactory {}
>
>
> term position
> 1 2
>
>
> term text
> exercise dvds
>
> term type
> word word
>
> source start,end
> 0,8 9,13
>
>
> payload
>
>
> org.apache.solr.analysis.SynonymFilterFactory {ignoreCase=true,
> synonyms=synonyms.txt, expand=true}
>
>
> term position
> 1
>
> term text
> fitness
>
>
> term type
> word
>
> source start,end
> 0,13
>
> payload
>
>
> org.apache.solr.analysis.TrimFilterFactory {}
>
>
>
> term position
> 1
>
> term text
> fitness
>
> term type
> word
>
>
> source start,end
> 0,13
>
> payload
>
>
> org.apache.solr.analysis.StopFilterFactory {ignoreCase=true,
> enablePositionIncrements=true, words=stopwords.txt}
>
>
> term position
> 1
>
>
> term text
> fitness
>
> term type
> word
>
> source start,end
> 0,13
>
> payload
>
>
>
> org.apache.solr.analysis.LowerCaseFilterFactory {}
>
>
> term position
> 1
>
> term text
> fitness
>
> term type
>
> word
>
> source start,end
> 0,13
>
> payload
>
>
> org.apache.solr.analysis.SnowballPorterFilterFactory {language=English,
> protected=protwords.txt}
>
>
> term position
>
> 1
>
> term text
> fit
>
> term type
> word
>
> source start,end
> 0,13
>
>
> payload
>
>
>
> ...but when I perform the search it doesn't seem to use the
> SynonymFilterFactory;
>
>
>
> 0
> 0
>
> exercise dvds
> 0
>
> on
>
> standard
>
>
> 2.2
> standard
>
> on
> *,score
> 10
>
> .....
>
> exercise dvds
> exercise dvds
> PRODUCTKEYWORDS:exercis PRODUCTKEYWORDS:dvds
>
> PRODUCTKEYWORDS:exercis PRODUCTKEYWORDS:dvds
>
>
> --
> View this message in context:
> http://lucene.472066.n3.nabble.com/Multi-word-synomyms-tp1019722p1019722.html
> Sent from the Solr - User mailing list archive at Nabble.com.
>
