MDEX Engine configuration is not required to configure a relevance ranking strategy for record search.

To define the relevance ranking strategy for dimension search operations, modify the RELRANK_STRATEGY attribute of dimsearch_config.xml. This attribute specifies the name of a relevance ranking strategy for dimension search. The content of this attribute should be a relevance ranking string, as in the following examples:

exact,static(rank,descending)
interp,exact

For details about the format of the relevance ranking string, see the "URL query parameters for relevance ranking" topic.

The default ranking strategy for dimension search operations, which is applied if you do not make any changes to it, is:

interp,exact,static

The default ranking strategy for record search operations is no strategy. That is, unless you explicitly establish a relevance ranking strategy, none is used.