In schema.xml, at the very bottom, you should see:
<!--
<similarity class="com.example.solr.CustomSimilarityFactory">
<str name="paramkey">param value</str>
</similarity>
-->
I believe creating the Factory wrapper is pretty simple. See
http://wiki.apache.org/solr/SolrPlugins
On Feb 4, 2009, at 7:29 PM, Jonah Schwartz wrote:
We want to configure solr so that fields are indexed with a maximum
term
frequency and a minimum document length. If a term appears more than
N times
in a field it will be considered to have appeared only N times. If a
document length is under M terms, it will be considered to exactly M
terms.
We have done this in the past in raw Lucene by writing a Similarity
class
like this:
public class LimitingSimilarity extends DefaultSimilarity {
public float lengthNorm(String fieldName, int numTerms) {
return super.lengthNorm(fieldName, Math.max(minNumTerms,
numTerms));
}
public float tf(float freq) {
freq = Math.min(maxTermFrequency,freq);
return super.tf(freq);
}
}
Is there a better way to this within solr configuration files?
Thanks,
Jonah
--------------------------
Grant Ingersoll
http://www.lucidimagination.com/
Lucene Helpful Hints:
http://wiki.apache.org/lucene-java/BasicsOfPerformance
http://wiki.apache.org/lucene-java/LuceneFAQ
