other unexpected results arise due to different queryNorms:
for the first result i get a query norm:
{
"value": 0.0059806756,
"description": "queryNorm"
}
for some other documents it's:
{
"value": 0.0031318406,
"description": "queryNorm"
}
the querynorm is multiplied to create the score, so it pushes some
documents by a factor of two leading to unexpected results i do not
understand. i digged into queryNorm and as far as i could understand it
should stay constant for all docs! the documentation
<http://lucene.apache.org/core/3_0_3/api/all/org/apache/lucene/search/Similarity.html>
states:
queryNorm(q) is a normalizing factor used to make scores between queries
comparable. This factor does not affect document ranking (since all ranked
documents are multiplied by the same factor), but rather just attempts to
make scores from different queries (or even different indexes) comparable.
is it ok that queryNorm differs?
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