> Would someone mind explaining how this differs from the > DefaultSimilarity?
The difference is length normalization. Default one punishes long documents. "Sweet one computes to a constant norm for all lengths in the [min,max] range (the "sweet spot"), and smaller norm values for lengths out of this range. Documents shorter or longer than the sweet spot range are "punished"" Section 4.1 http://trec.nist.gov/pubs/trec16/papers/ibm-haifa.mq.final.pdf > Also how would one replace the use of the DefaultSimilarity > class with this > one? I can't seem to find any such configuration in > solrconfig.xml. it is in schema.xml: <similarity class="org.apache.lucene.search.SweetSpotSimilarity"/>
