Cuong, If when you are indexing your AC suggestions you know "Java Developer" appears twice in the index, why not give it appropriate index-time boost? Wouldn't that work for you?
Otis ---- Performance Monitoring SaaS for Solr - http://sematext.com/spm/solr-performance-monitoring/index.html ----- Original Message ----- > From: Cuong Hoang <climbingr...@gmail.com> > To: solr-user@lucene.apache.org > Cc: > Sent: Thursday, January 19, 2012 12:01 AM > Subject: Ngram autocompleter and term frequency boosting > > Hi guys, > > I'm trying to build a Ngram-based autocompleter that takes term frequency > into account. > > Let's say I have the following documents: > > D1: title => "Java Developer" > D2: title => "Java Programmer" > D3: title => "Java Developer" > > When the user types in "Java", I want to display > > 1. "Java Developer" > 2. "Java Programmer" > > Basically "Java Developer" ranks first because it appears twice in the > index while "Java Programmer" only appears once. Is it possible? > > I'm using the following config for "title" field: > > <fieldType name="text_pre" class="solr.TextField" > omitNorms="false"> > <analyzer type="index"> > <tokenizer class="solr.KeywordTokenizerFactory"/> > <filter class="solr.LowerCaseFilterFactory"/> > <filter class="solr.EdgeNGramFilterFactory" > minGramSize="1" > maxGramSize="25" side="front"/> > </analyzer> > <analyzer type="query"> > <tokenizer class="solr.KeywordTokenizerFactory"/> > <filter class="solr.LowerCaseFilterFactory"/> > </analyzer> > </fieldType> > > Thanks >
