If you have FAST Search Server 2010 for SharePoint installed, the following options are available under Central Administration > Applications Management > Manage Service Applications > Search Service Application > FAST Search Administration.
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Property management
Crawled properties are automatically extracted from crawled content. You can make the crawled properties part of the search user experience by mapping the crawled properties to managed properties.
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Manage property extraction
The Manage property extraction feature identifies key information such as person names, company names, and geographic names/locations in documents. You can use the properties to improve the search experience, for example by providing search result refinement based on the properties.
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Spell checking management
You can improve the search experience by adding spell checking exceptions. Spell checking exceptions are words or phrases that should be excluded from spell checking.