Parametrizing H1 and H2
-----------------------
Key: LUCENE-3566
URL: https://issues.apache.org/jira/browse/LUCENE-3566
Project: Lucene - Java
Issue Type: Improvement
Components: core/search
Affects Versions: flexscoring branch
Reporter: David Mark Nemeskey
Assignee: David Mark Nemeskey
Priority: Minor
Fix For: flexscoring branch
The DFR normalizations {{H1}} and {{H2}} are parameter-free. This is in line
with the [original
article|http://citeseer.ist.psu.edu/viewdoc/summary?doi=10.1.1.101.742], but
not with the [thesis|http://theses.gla.ac.uk/1570/], where H2 accepts a {{c}}
parameter, nor with [information-based
models|http://dl.acm.org/citation.cfm?id=1835490], where H1 also accepts a
{{c}} parameter.
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