: Thanks! What's the procedure to report this if it's a bug? : EDisMax has similar behavior.
what yo uare seeing isn't specific to dismax & edismax (in fact: there's no evidence in your example that dismax is even being used) what you are seeing is the basic scoring of a TermQuery using the DefaultSimilarity in lucene... https://lucene.apache.org/java/3_4_0/api/core/org/apache/lucene/search/Similarity.html ...if you have specific questions about how/why this scoring forumala is used, i would suggest posting them to the java-user@lucene mailing list. -Hoss
