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Search results obtained from a ranking model are re-ranked based on user-configured ranking rules. For example, a user may desire to: place certain search results at a top/bottom of a ranking of search results; remove some search results: and/or adjust a ranking of Some of the search results. A Graphical User Interface (GUI) allows a user to configure the ranking rules (eg enter key/value restrictions and to set a boost value) and to preview an application of one or more of the ranking rules. Query language operators that follow a standard operator syntax are created based on the inputs (eg a ranking query operator is created that may include multiple user Supplied parameters). The user may also specify a portion of the results from which statistics (eg standard deviation, average score) are calculated. For example, a user may specify to calculate statistics for the top N number results.