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https://issues.apache.org/jira/browse/NUTCH-2147?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14973930#comment-14973930
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Markus Jelsma commented on NUTCH-2147:
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Hello, we did something quite similar but used Jexl expressions instead. If we
change this issue to deal with Jexl expressions, you can put any arbitrary
logic into a scoring filter, see NUTCH-1980.
> LanguagePreferenceScoringFilter for Nutch
> -----------------------------------------
>
> Key: NUTCH-2147
> URL: https://issues.apache.org/jira/browse/NUTCH-2147
> Project: Nutch
> Issue Type: New Feature
> Components: plugin, scoring
> Affects Versions: 1.10
> Reporter: Lewis John McGibbney
> Assignee: Lewis John McGibbney
> Fix For: 1.12
>
>
> Based on the implementation of a LanguagePreferenceScoringFilter Nutch could
> easily be made into a directed crawler based on crawl administrator ranking
> preferences of languages we wish to crawl.
> Right now this is not possible.
> We already detect and index language within the language-identifier plugin as
> well as within parse-tika irrc, however currently the presence of a language
> does not effect scoring of pages.
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