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Spell tuning cmdlets (FAST Search Server 2010 for SharePoint)

FAST Search Server 2010
 

Applies to: FAST Search Server 2010

Topic Last Modified: 2010-06-08

Microsoft FAST Search Server 2010 for SharePoint provides a set of cmdlets to control spell tuning, used to fine-tune your spell checking dictionaries against the content of the processed documents.

Spell tuning is the process that fine-tunes the spell checking dictionaries in a FAST Search Server 2010 for SharePoint system. Spell checking is a process that looks for misspelled query terms based on the spelling dictionaries and suggests alternative spellings to end users through the Did You Mean search feature, whereas spell tuning is a process that you enable to automatically update the spelling dictionaries.

When spell tuning is enabled, spell checking dictionaries are aligned with the frequency of words in the processed documents. This ensures that searchers only get spelling check suggestions that are relevant within the processed content. Spell checking is implemented by the Did You Mean feature in a FAST Search Server 2010 for SharePoint search application. Spell checking is dictionary based; when spell tuning is enabled, the Did You Mean feature only suggests terms that are actually in the processed documents, and prioritizes terms that occur more frequently.

For performance reasons, deletions of documents or of an entire document collection are not tracked. If a substantial amount of documents or an entire collection has been deleted, you should reset the spell checking dictionaries to their original state by using the Reset-FASTSearchSpelltuning cmdlet.

When you disable spell tuning, new dictionaries are no longer created, and the Did You Mean feature draws suggestions from the standard dictionaries which were delivered in the original installation.

noteNote
You can also override dictionary-based spell checking for specific words using the Central Administration > Search Service Application: FAST Search Administration > Spell Checking page. The Central Administration Spell Checking feature lets you add to the spell checking exception list (words that are never offered as suggestions to searchers).

Use these cmdlets to manage spell tuning:

 

Task Cmdlet

Enable the spell tuning processor, to align the spell checking dictionaries with the processed documents.

Add-FASTSearchSpelltuning

Retrieve the status of spell tuning, either active or inactive

Get-FASTSearchSpelltuningStatus

Replace the Did You Mean spell checking dictionaries with the standard dictionaries

Reset-FASTSearchSpelltuning

Disable spell tuning and stop the generation of new dictionaries

Remove-FASTSearchSpelltuning

noteNote
To use the cmdlets, verify that you meet the following minimum requirements: You are a member of the FASTSearchAdministrators local group on the computer where FAST Search Server 2010 for SharePoint is installed.

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