Fair ranking: a critical review, challenges, and future directions

• URL: http://arxiv.org/abs/2201.12662v1
• Date: Sat, 29 Jan 2022 21:26:04 GMT
• Title: Fair ranking: a critical review, challenges, and future directions
• Authors: Gourab K Patro, Lorenzo Porcaro, Laura Mitchell, Qiuyue Zhang, Meike Zehlike, and Nikhil Garg
• Abstract summary: Large "fair ranking" research literature has been developed around making these systems fair to the individuals, providers, or content that are being ranked. This work provides a critical overview of this literature, detailing the often context-specific concerns that such an approach misses. We then provide a path forward for a more holistic and impact-oriented fair ranking research agenda.
• Score: 4.126546022406797
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Ranking, recommendation, and retrieval systems are widely used in online platforms and other societal systems, including e-commerce, media-streaming, admissions, gig platforms, and hiring. In the recent past, a large "fair ranking" research literature has been developed around making these systems fair to the individuals, providers, or content that are being ranked. Most of this literature defines fairness for a single instance of retrieval, or as a simple additive notion for multiple instances of retrievals over time. This work provides a critical overview of this literature, detailing the often context-specific concerns that such an approach misses: the gap between high ranking placements and true provider utility, spillovers and compounding effects over time, induced strategic incentives, and the effect of statistical uncertainty. We then provide a path forward for a more holistic and impact-oriented fair ranking research agenda, including methodological lessons from other fields and the role of the broader stakeholder community in overcoming data bottlenecks and designing effective regulatory environments.

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