In Tables 24.1-24.3, we provide an overview of some sample recommender systems that could be broadly classified as MCDM (or multi-criteria recommender)
systems based on the work of [48]. This survey covers systems that use one of the
MCDM methods discussed in the previous section and, thus, provides insights into
the way that existing MCDM approaches can be employed to support the decisionmaking in recommender systems.