RE: Multi word synonyms

[Zac Smith]

I suppose I could translate every user query to include the term with quotes.

e.g. if someone searches for stock syrup I send a query like:
q=stock syrup OR "stock syrup"

Seems like a bit of a hack though, is there a better way of doing this?

Zac

-----Original Message-----
From: Zac Smith 
Sent: Sunday, February 05, 2012 7:28 PM
To: solr-user@lucene.apache.org
Subject: RE: Multi word synonyms

Thanks for the response. This almost worked, I created a new field using the 
KeywordTokenizerFactory as you suggested. The only problem was that searches 
only found documents when quotes were used. 
E.g. 
synonyms.txt setup like this:
simple syrup,sugar syrup,stock syrup

I indexed a document with the value 'simple syrup'. Searches only found the 
document when using quotes:
e.g.
"simple syrup" or "stock syrup" matched
simple syrup (no quotes) did not match

Here is the field I created:
        <fieldType name="synonym_searcher" class="solr.TextField" 
positionIncrementGap="100" autoGeneratePhraseQueries="true">
            <analyzer type="index">
                <charFilter class="solr.MappingCharFilterFactory" 
mapping="mapping-ISOLatin1Accent.txt" />                              
                                <tokenizer class="solr.KeywordTokenizerFactory" 
/>
                                <filter class="solr.SynonymFilterFactory" 
synonyms="synonyms.txt" ignoreCase="true" expand="true" 
tokenizerFactory="solr.KeywordTokenizerFactory" />
                <filter class="solr.LowerCaseFilterFactory" />                  
        
            </analyzer>
            <analyzer type="query">
                                <charFilter 
class="solr.MappingCharFilterFactory" mapping="mapping-ISOLatin1Accent.txt" />
                <tokenizer class="solr.KeywordTokenizerFactory" />              
                
                <filter class="solr.LowerCaseFilterFactory" />                  
        
            </analyzer>
        </fieldType>

Any ideas? Also, I am using dismax and solr 3.5.0.

Thanks
Zac

-----Original Message-----
From: O. Klein [mailto:kl...@octoweb.nl] 
Sent: Sunday, February 05, 2012 5:22 AM
To: solr-user@lucene.apache.org
Subject: Re: Multi word synonyms

Your query analyser will tokenize "simple sirup" into "simple" and "sirup"
and wont match on "simple syrup" in the synonyms.txt

So you have to change the query analyzer into KeywordTokenizerFactory as well.

It might be idea to make a field for synonyms only with this tokenizer and 
another field to search on and use dismax. Never tried this though.

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