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https://issues.apache.org/jira/browse/NUTCH-547?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Doğacan Güney updated NUTCH-547:
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Attachment: redirect_draft.patch
Draft version.
> Redirection handling: YahooSlurp's algorithm
> --------------------------------------------
>
> Key: NUTCH-547
> URL: https://issues.apache.org/jira/browse/NUTCH-547
> Project: Nutch
> Issue Type: Improvement
> Components: fetcher
> Reporter: Doğacan Güney
> Fix For: 1.0.0
>
> Attachments: redirect_draft.patch
>
>
> After reading Yahoo's algorithm (then one Andrzej linked to:
> http://help.yahoo.com/l/nz/yahooxtra/search/webcrawler/slurp-11.html )
> in the redirect/alias handling discussion, I had a bit of a spare
> time, so I implemented it.
> Note that the patch I am attaching is for the 'choosing' algorithm described
> in
> Yahoo's help page. It makes no attempt to handle aliases in any way. (See
> http://www.nabble.com/Redirects-and-alias-handling-%28LONG%29-tf4270371.html#a12154362
> for the discussion about alias handling).
> E.g,
> generate "http://www.milliyet.com.tr/";
> fetch "http:/www.milliyet.com.tr/" which redirects to
> "http://www.milliyet.com.tr/2007/08/29/index.html?ver=39";.
> Update second page's datum's metadata to indicate that
> "http://www.milliyet.com.tr/"; is the representative form.
> Updatedb, invertlinks, etc...
> While indexing second page, change its "url" field to
> "http://www.milliyet.com.tr/";.
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