[jira] Resolved: (NUTCH-468) Scoring filter should distribute score to all outlinks at once

["Doğacan Güney (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/NUTCH-468?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Doğacan Güney resolved NUTCH-468.
---------------------------------

    Resolution: Fixed
      Assignee: Doğacan Güney

Committed in rev. 550188 with minor modifications.

> 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
>            Assignee: Doğacan Güney
>            Priority: Minor
>             Fix For: 1.0.0
>
>         Attachments: scoring-v2.patch, 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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