Long-term fairness for Group Recommender Systems with Large Groups

Group recommender systems (GRS) focus on recommending items to groups of users. GRS need to tackle the heterogeneity of group members’ preferences and produce recommendations of high overall utility while also considering some sense of fairness among group members. This work plans to aim for novel applications of GRS involving construction of large-scale groups of users and focusing on the long-term fairness of these groups which is in contrast with current research that concentrates on small groups of ephemeral nature. We believe that these directions could bring results of significant societal impact and scope of the effect expanding beyond currently considered GRS domains, e.g., helping to mitigate the filter bubble problem