Fairness in Ranking, Part II: Learning-to-Rank and Recommender Systems

Authors: Meike Zehlike, Ke Yang, Julia Stoyanovich

Published: 2022-05-11

DOI: 10.1145/3533380

Source: Full article


Abstract

In the past few years, there has been much work on incorporating fairness requirements into algorithmic rankers, with contributions coming from the data management, algorithms, information retrieval, and recommender systems communities. In this survey, we give a systematic overview of this work, offering a broad perspective that connects formalizations and algorithmic approaches across subfields. An important contribution of our work is in developing a common narrative around the value frameworks that motivate specific fairness-enhancing interventions in ranking. This allows us to unify the presentation of mitigation objectives and of algorithmic techniques to help meet those objectives or identify trade-offs.