: Simply trying to understand why these strings generated such scores, and as
: far as I can understand, the only difference between them is the field
: norms, as all the other results maintain themselves.
...
: Well, if this is true, the field norm for my first document should be 0.5
: (1/sqrt(4)) as "Livro - IPAD - O Guia do Profissional" ends up with the
: terms "livro|ipad|guia|profissional" as tokens.
...
: 3.6808658 = (MATCH) fieldWeight(itemName:ipad in 102507), product of:
: 1.0 = tf(termFreq(itemName:ipad)=1)
: 8.413407 = idf(docFreq=165, maxDocs=275239)
: 0.4375 = fieldNorm(field=itemName, doc=102507)
fieldNorms are encoded into a compact byte representation which looses
some precision...
http://lucene.apache.org/java/3_0_3/api/core/org/apache/lucene/search/Similarity.html#encodeNorm%28float%29
-Hoss
