As described in the Helping Users Narrow Their Search section of the Standard Query chapter, ATG Search can return categorization feedback about the returned results in the form of a tree. This functionality is controlled by the following attribute:
<similardocs docSetSort="mode"The mode value can be:
none—No categorization feedback tree is constructed.fulltree—A full categorization tree is returned, with all intervening levels, even if they have no direct connection to the results.sparsetree—A categorization tree is returned, but intervening levels that have no direct connection to the results are omitted.
The default value is none.
