A computer-implemented method according to one embodiment includes receiving a search query; determining a first set of categories associated with the search query, including performing a reverse lookup for the search query using a dynamic inference map in order to determine the first set of categories, where each category of the first set of categories includes one or more words that describe one or more aspects of the search query; determining a second set of categories associated with preliminary results of the search query; and filtering the preliminary results of the search query, including removing a subset of the preliminary results of the search query based on a comparison of the first set of categories to the second set of categories.