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From Jan Høydahl (JIRA) <j...@apache.org>
Subject [jira] [Updated] (LUCENE-1093) SpanFirstQuery modification to aid term boosting based on position.
Date Thu, 28 Feb 2013 13:05:17 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-1093?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jan Høydahl updated LUCENE-1093:
--------------------------------


This issue has been inactive for more than 4 years. Please close if it's no longer relevant/needed,
or bring it up to date if you intend to work on it. SPRING_CLEANING_2013
                
> SpanFirstQuery modification to aid term boosting based on position.
> -------------------------------------------------------------------
>
>                 Key: LUCENE-1093
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1093
>             Project: Lucene - Core
>          Issue Type: Improvement
>          Components: core/query/scoring
>            Reporter: Peter Keegan
>            Priority: Minor
>         Attachments: SpanFirst20071219.patch, TestBasics20071227.patch
>
>
> This is a request for a modification to SpanFirstQuery that would allow term boosting
based on a term's distance from the beginning of the document.
> This modification to SpanFirstQuery would be that the Spans returned by SpanFirstQuery.getSpans()
must always return 0 from its start() method. Then the slop passed to sloppyFreq(slop) would
be the distance from the beginning of the indexed field to the end of the Spans of the SpanQuery
passed to SpanFirstQuery.
> Here is the discussion behind this issue:
> http://www.nabble.com/Can-I-do-boosting-based-on-term-postions--to11939423.html#a11939423

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