Hi,
I am quite new to solr and I am interested in implementing a sort of auto terms
suggest (not auto complete) feature based on the user query.
Users builds some query (on multiple fields) and I am trying to help him
refining his query by suggesting to add more terms based on his current query.
The suggestions should contain synonyms and different word forms (query:close ,
result: closed, closing) and also some other "interesting" (hard to define what
interesting is) terms and phrases based on that search.
The queries are perform on text field with about 1000 words on document sets of
about 20-50M
So far I came up with solution that uses Suggester component over the 1000
words text field (copy field) as shown below and im trying to find how to add
to it more "interesting" terms and phrases based on the text field
<field name="text_total_shingle_synonyms" type="text_total_shingle_synonyms"
indexed="true" stored="true" termVectors="true" termOffsets="true"
termPositions="true" required="false" multiValued="true" />
<copyField source="text_en_total" dest="text_total_shingle_synonyms"/>
<fieldType name="text_total_shingle_synonyms" class="solr.TextField"
positionIncrementGap="100">
<analyzer type="index">
<tokenizer class="solr.StandardTokenizerFactory"/>
<!-- Case insensitive stop word removal.-->
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.EnglishPossessiveFilterFactory"/>
<filter class="solr.KeywordMarkerFilterFactory"
protected="protwords.txt"/>
<filter class="solr.ShingleFilterFactory" maxShingleSize="4" />
</analyzer>
<analyzer type="query">
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.SynonymFilterFactory"
synonyms="synonyms_suggest.txt" ignoreCase="true" expand="false"/> <!-- in
example it is set to false, we have it as true -->
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.EnglishPossessiveFilterFactory"/>
<filter class="solr.KeywordMarkerFilterFactory"
protected="protwords.txt"/>
<!-- <filter class="solr.PorterStemFilterFactory"/> -->
</analyzer>
</fieldType>
Thanks,
Artur Rudenko
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