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2007 Jul 10
0
Article score calculations for Boolean and MultiTerm Queries, and customization options
...0/hudson/job/Lucene-Nightly/javadoc/org/apache/lucene/search/Similarity.html#formula_coord)
and through using the explain function in Ferret it seems that the score
calculation for a boolean query is (in latex)
score = ( querynorm \times fieldnorm ) \sum_{term \in query}{
idf_{term}^{2} tf_{term} boost_{term}}
and the calculation for the score of a document matching a MultiTerm Query
is
score = ( querynorm \times fieldnorm ) idf_{terms \in query}^{2} \sum_{term
\in query}{tf_{term} boost_{term}}
I would like to implement something much simpler like
score = \sum_{term \in query}{tf_{term} boost...