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https://issues.apache.org/jira/browse/NUTCH-574?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12540889
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Dennis Kubes commented on NUTCH-574:
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Ok, talked with Docagan. The current idea is to have three options. An always
include, never include, and include if matches text on page. The default
option would be include if match to preserve backwards compatibility but to
allow indexes to return more relevant results. So I am going to work up a new
patch for this, should have it posted sometime today or tomorrow.
> 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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