论文标题

通过个性化的重新排列的机会主义的多种公平性

Opportunistic Multi-aspect Fairness through Personalized Re-ranking

论文作者

Sonboli, Nasim, Eskandanian, Farzad, Burke, Robin, Liu, Weiwen, Mobasher, Bamshad

论文摘要

随着推荐系统变得越来越普遍,并进入具有更大的社会影响的领域,例如就业和住房,研究人员已经开始寻求方法来确保此类系统产生的结果公平。这项工作主要集中于开发建议方法,其中公平指标被共同优化以及建议准确性。但是,先前的工作在很大程度上忽略了个人偏好如何限制算法提出公平建议的能力。此外,除少数例外,研究人员仅考虑了相对于单个敏感特征或属性(例如种族或性别)进行公平性测量的场景。在本文中,我们提出了一种对公平感知建议的重新排列方法,该方法可以学习多个公平维度的个人偏好,并利用它们来增强提供者的公平性。具体来说,我们表明,与先前的重新排列方法相比,我们的机会主义和公制方法在准确性和公平之间取得了更好的权衡,并且在多个公平的维度上做到了。

As recommender systems have become more widespread and moved into areas with greater social impact, such as employment and housing, researchers have begun to seek ways to ensure fairness in the results that such systems produce. This work has primarily focused on developing recommendation approaches in which fairness metrics are jointly optimized along with recommendation accuracy. However, the previous work had largely ignored how individual preferences may limit the ability of an algorithm to produce fair recommendations. Furthermore, with few exceptions, researchers have only considered scenarios in which fairness is measured relative to a single sensitive feature or attribute (such as race or gender). In this paper, we present a re-ranking approach to fairness-aware recommendation that learns individual preferences across multiple fairness dimensions and uses them to enhance provider fairness in recommendation results. Specifically, we show that our opportunistic and metric-agnostic approach achieves a better trade-off between accuracy and fairness than prior re-ranking approaches and does so across multiple fairness dimensions.

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