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Posted to dev@nutch.apache.org by "Julien Nioche (JIRA)" <ji...@apache.org> on 2010/08/10 11:53:15 UTC

[jira] Commented: (NUTCH-877) Allow setting of slop values for non-quote phrase queries on query-basic plugin

    [ https://issues.apache.org/jira/browse/NUTCH-877?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12896831#action_12896831 ] 

Julien Nioche commented on NUTCH-877:
-------------------------------------

+1 

> Allow setting of slop values for non-quote phrase queries on query-basic plugin
> -------------------------------------------------------------------------------
>
>                 Key: NUTCH-877
>                 URL: https://issues.apache.org/jira/browse/NUTCH-877
>             Project: Nutch
>          Issue Type: Improvement
>          Components: searcher
>    Affects Versions: 1.2
>         Environment: All
>            Reporter: Dennis Kubes
>            Assignee: Dennis Kubes
>             Fix For: 1.2
>
>         Attachments: NUTCH-877-1-20100809.patch
>
>
> Patch adds a configuration variable for setting slop values on phrase queries.  The default slop value, which currently can't be changed through configuration, is Integer.MAX_VALUE.  It produces something like this, which doesn't seem right to me.  If you are searching for a phrase you usually want it within a certain distance:
> 2.9141337E-4 = weight(content:"my phrase"~2147483647 in 1029), product of:
>     * 0.07163286 = queryWeight(content:"my phrase"~2147483647), product of:
>           o 9.657982 = idf(content: my=13470 phrase=534)
>           o 0.0074169594 = queryNorm
> This patch adds the query.phrase.slop configuration value to the nutch-default.xml file.  It has a default setting of 5.

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