Google Search Appliance Deployment Governance and Operational Models - Manual (Page 7)

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The following table provides an overview of features that may affect how results are displayed to users.
Feature Comments
Source Biasing Via pattern matching, bias one source over another.
Date Biasing Assign more or less importance to document creation date.
Metadata Biasing Bias documents that have specific metadata attached.
KeyMatches Although KeyMatches are technically a suggestion feature and not part of
organic search results, you can use them to promote documents for certain
queries.
Query Expansion Use a query expansion policy to expand search queries terms into other terms
(synonyms).
Self-Learning Scorer When Advanced Search Reporting is enabled, the GSA uses the Self-Learning
Scorer to analyze clickstream data and promote certain search results over
time. As an example, for a given search query, if users consistently click the
second result on the page instead of the first, that result will eventually move up
to overtake the first position on the page.
Host
Crowding/Filtering Enable the GSA to filter out any combination of:
●
Results from the same path
●
Results with duplicate titles and snippets
Ranking Framework Specify a per-URL biasing. Take note that this is a very complex solution to
manage and should only be tried as a last resort.
Stopwords Use stopwords to remove certain terms in the query from being used when
performing search.
Take care when using this feature as this can have wide ranging implications if
used as a solution to a particular problem.
Collections Break content into different collections to restrict the document corpus available
to a search query.
User experience considerations
Modifications to the user experience of search can also go a long way in how your users perceive your
search deployment.
For information about some best practices for options relating to improving users' search experience, see
Search Experience Best Practices .
For detailed information about user experience options, see GSA Notes from the Field: User Experience
Guide .