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Posted to dev@lucene.apache.org by "David Mark Nemeskey (Updated) (JIRA)" <ji...@apache.org> on 2011/11/07 12:15:51 UTC
[jira] [Updated] (LUCENE-3566) Parametrizing H1 and H2
[ https://issues.apache.org/jira/browse/LUCENE-3566?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
David Mark Nemeskey updated LUCENE-3566:
----------------------------------------
Lucene Fields: New,Patch Available (was: New)
> 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
> Labels: score
> Fix For: flexscoring branch
>
> Attachments: LUCENE-3566.patch
>
> Original Estimate: 1h
> Remaining Estimate: 1h
>
> 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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