1. A computer-implemented method, comprising: identifying filter reduction ratios for a plurality of filters, each respective filter reduction ratio corresponding to a respective reduction of training assets based on use of a respective filter, wherein identifying a filter reduction ratio for a filter of the plurality of filters comprises: creating an artificial term for the filter based on color information; filtering the training assets using the created artificial term; and calculating the filter reduction ratio for the filter based at least in part on the filtered training assets and the training assets; receiving a requested reduction ratio; and selecting, by a computing system, a subset of filters from the plurality of filters based at least in part on the requested reduction ratio and the filter reduction ratios, the subset of filters selected such that applying the subset of filters to a set of a number of media assets reduces the number of media assets in the set according to the requested reduction ratio.