Numeric Weights

Note

Indexing Service is no longer supported as of Windows XP and is unavailable for use as of Windows 8. Instead, use Windows Search for client side search and Microsoft Search Server Express for server side search.

 

Query terms can be weighted when submitting a query by using the {weight} tag. This tag is a unary operator, and it appears before the query term and has no closing tag. The syntax is the following.

{weight value = n} query term

The value attribute specifies the weight to assign to the query term. The value of n can range from 0.0 to 1.0. Search engines are free to interpret weighting values within these guidelines.

A linear scale is assumed between 0.0 and 1.0. In Dialect 2, no short-form expression is available for weighting. For information about term weighting in Dialect 1, see Incompatibilities of Dialect 2 with Dialect 1.

The following table gives an example of term weighting.

To Search For	Example	Results
Documents that match terms with specified weights.	{weight value=0.25} dog OR {weight value=0.50} cat OR {weight value=1.00} pig	Documents containing pig followed by documents containing cat followed by documents containing dog.