Abstract: A method and system for providing hierarchical decision fusion of recommender scores, wherein at least two levels of fusion are provided. In a method, a plurality of recommenders at a first level are grouped according to topics of interest. A plurality of first level fusion centers receive a number of outputs from a predetermined number of recommenders. The first level fusion centers output a first enhanced decision level, and a series of second level fusion centers receive a predetermined number of the first enhanced decision, and a second fusing step occurs to result in a second enhanced decision level. The groups can be reading history, music, viewing history, purchasing history, and can be intermixed, so that the enhanced decision may recommend a particular movie based on both the ranking about movies and music.