Rahul Babulal created SOLR-10183:
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Summary: A real scaling normalizer in solr-ltr
Key: SOLR-10183
URL: https://issues.apache.org/jira/browse/SOLR-10183
Project: Solr
Issue Type: New Feature
Security Level: Public (Default Security Level. Issues are Public)
Affects Versions: 6.4.1
Reporter: Rahul Babulal
The current solr-ltr plugin provider two different normalizer implementations,
minMax and standard normalizer. The mimMax normalizer doesn't seem to correctly
scale the values to fall in between the given min and max. The solr scale
function [1] appropriately scales the values to fall in between the given
range. But it cannot be used as it is, because it has performance problems and
makes the scoring process really slow.
[1]https://wiki.apache.org/solr/FunctionQuery#scale
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