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Posted to dev@nutch.apache.org by "Doğacan Güney (JIRA)" <ji...@apache.org> on 2007/04/09 20:59:32 UTC
[jira] Updated: (NUTCH-468) Scoring filter should distribute score
to all outlinks at once
[ https://issues.apache.org/jira/browse/NUTCH-468?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Doğacan Güney updated NUTCH-468:
--------------------------------
Attachment: scoring.patch
Patch for the issue. It doesn't change the way scoring-opic works.
> Scoring filter should distribute score to all outlinks at once
> --------------------------------------------------------------
>
> Key: NUTCH-468
> URL: https://issues.apache.org/jira/browse/NUTCH-468
> Project: Nutch
> Issue Type: Improvement
> Affects Versions: 1.0.0
> Reporter: Doğacan Güney
> Priority: Minor
> Fix For: 1.0.0
>
> Attachments: scoring.patch
>
>
> Currently ScoringFilter.distributeScoreToOutlink, as its name implies, takes only a single outlink and works on that. I would suggest that we change it to distributeScoreToOutlink_s_ so that it would take all the outlinks of a page at once. This has several advantages:
> 1) A ScoringFilter plugin returns a single adjust datum to set its score instead of returning several.
> 2) A ScoringFilter plugin can change the score of the original page (via adjust datum) even if there are no outlinks. This is useful if you have a ScoringFilter plugin that, say, scores pages based on content instead of outlinks.
> 3) Since the ScoringFilter plugin recieves all outlinks at once, it can make better decisions on how to distribute the score. For example, right now it is not possible to create a plugin that always distributes exactly a page's 'cash' to outlinks(that is, if a page has score 5, it will always distribute exactly 5 points to its outlinks no matter what the internal/external factors are) if internal / external score factors are not 1.
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