Recommender systems (RecSys) have been well developed to assist user decision making. Traditional RecSys usually optimize a single objective (e.g., rating prediction errors or ranking quality) in the model. There is an emerging demand in multi-objective optimization recently in RecSys, especially in the area of multi-stakeholder and multi-task recommender systems. This article provides an overview of multi-objective recommendations, followed by the discussions with case studies. The document is considered as a supplementary material for our tutorial on multi-objective recommendations at ACM SIGKDD 2021.
@article{arxiv.2108.06367,
title = {Multi-Objective Recommendations: A Tutorial},
author = {Yong Zheng and David and Wang},
journal= {arXiv preprint arXiv:2108.06367},
year = {2023}
}