Site Search > Relevance > Relevance Modeling > Ranking Tab
The Ranking Tab of Site Search’s Model Details screen lets us apply “boost” multipliers to relevance scores of matches that fall within specific fields. You can also calculate a partial relevance score using a function, and then boost that value as desired.
Note that you can turn the feature on and off using a checkbox.
To apply a boost to a field, select the Search Field option and select the field from the drop-down list. Click the (+) button to create a slider control for that field.
To calculate a partial relevance score based on the value of a field, select the Function option and type in a Solr Function Query expression. Click the (+) button to create a slider control.
Slide the controls left and right to establish the relative importance of a match in each field. A default (unboosted) field has a boost multiplier of 1.
Some example functions you can use are:
- To boost if a field say ‘sitename’ contains a particular value (say Public) –
- To boost by a date field – say ‘publish_date’ –
Use the Save Draft button to save your changes. The Publish button makes this Relevance Model available to the Relevance Preview screen.