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https://issues.apache.org/jira/browse/NUTCH-574?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12541428
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Andrzej Bialecki commented on NUTCH-574:
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+1 on making it into a plugin (e.g. index-anchors). -1 on implementing any sort
of filtering - as Enis pointed out, the issue is complicated in itself, and
additionally depends on the user requirements. I propose the following: let's
implement a basic version (which is implemented now in the form of
LinkDb.getAnchors()), and leave users the freedom to complicate away if they
wish to do so.
Re: scoring - this is again tricky, because the top-N most frequent words
happen to be stopwords, and if that's the case you need to know the language of
the corpus in order to properly detect them and remove from the top-N ... very
messy.
> Including inlink anchor text in index can create irrelevant search results.
> ---------------------------------------------------------------------------
>
> Key: NUTCH-574
> URL: https://issues.apache.org/jira/browse/NUTCH-574
> Project: Nutch
> Issue Type: Bug
> Components: indexer
> Environment: All, basic indexing filter
> Reporter: Dennis Kubes
> Assignee: Dennis Kubes
> Fix For: 1.0.0
>
> Attachments: NUTCH-574-1.patch
>
>
> Currently the basic indexing filter includes inbound anchor text for a given
> URL in the index. This sometimes allows pages to show up in search results
> where they may not be relevant. An example of this is a search for "dallas
> hotels" in our production index (www.visvo.com). Google would show up first
> in this example although there is no text matching either dallas or hotels on
> the google home page. What is happening here is there are inlinks into
> google with the words dallas and hotels which get included in the index for
> google.com and because google would have a very high boost due to inlinks,
> google shows up first for these search terms. I propose we add an option to
> allow/prevent inlink anchor text from being included in the index and set the
> default for this option to NOT include inbound link anchor text.
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