Search for	Example	Results
A single word	`cat`	Topics that contain the word "cat". You will also find its grammatical variations, such as "cats".
A phrase. You can specify that the search results contain a specific phrase.	`"cat food"` (quotation marks)	Topics that contain the literal phrase "cat food" and all its grammatical variations. Without the quotation marks, the query is equivalent to specifying an OR operator, which finds topics with one of the individual words instead of the phrase.

Search for	Operator	Example
Two or more words in the same topic	`AND` `and` `+` (plus symbol) `&` (ampersand)	`cat AND dog` `"cat food"+milk` `"cat food"&"dog food"`
Either word in a topic	`OR` `or` `\|` (pipe)	`cat OR dog` `cat \| dog`
Topics that do not contain a specific word or phrase	`NOT` `not` `!` (exclamation point)	`NOT cat` `! dog`
Topics that contain one string and do not contain another	`^` (caret)	`cat ^ mouse`
A combination of search types	`( )` parentheses	`cat + (dog \| mouse)` `cat \| dog + (! mouse)`

Service Management2017.11

Administer > Database administration > Data persistence > IR Expert > How IR Expert evaluates documents for relevance > Using IR Expert and Adaptive Learning

Using IR Expert and Adaptive Learning

IR expert allows users to take search phrases and relate them to solution phrases in a table so that when the same query is used, the usage relevance score for the solution phrase increases. Additionally, IR Expert allows administrators to manually change the relevance score of individual phrases and words.

The accuracy of this feature is based on a query term and how it may have been used, or incorrectly used. The data is useful only if the adaptive learning data is monitored by a System Administrator.

The largest value that can be applied to a query or incident record is 65000.

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