Fair Pairs: Fairness-Aware Ranking Recovery from Pairwise Comparisons

Fuente: arXiv
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Hauptverfasser: Ahnert, Georg, Ferrara, Antonio, Wagner, Claudia
Format: Preprint
Veröffentlicht: 2024
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author Ahnert, Georg
Ferrara, Antonio
Wagner, Claudia
author_facet Ahnert, Georg
Ferrara, Antonio
Wagner, Claudia
contents Pairwise comparisons based on human judgements are an effective method for determining rankings of items or individuals. However, as human biases perpetuate from pairwise comparisons to recovered rankings, they affect algorithmic decision making. In this paper, we introduce the problem of fairness-aware ranking recovery from pairwise comparisons. We propose a group-conditioned accuracy measure which quantifies fairness of rankings recovered from pairwise comparisons. We evaluate the impact of state-of-the-art ranking recovery algorithms and sampling approaches on accuracy and fairness of the recovered rankings, using synthetic and empirical data. Our results show that Fairness-Aware PageRank and GNNRank with FA*IR post-processing effectively mitigate existing biases in pairwise comparisons and improve the overall accuracy of recovered rankings. We highlight limitations and strengths of different approaches, and provide a Python package to facilitate replication and future work on fair ranking recovery from pairwise comparisons.
format Preprint
id arxiv_https___arxiv_org_abs_2408_13034
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Fair Pairs: Fairness-Aware Ranking Recovery from Pairwise Comparisons
Ahnert, Georg
Ferrara, Antonio
Wagner, Claudia
Computers and Society
Social and Information Networks
Pairwise comparisons based on human judgements are an effective method for determining rankings of items or individuals. However, as human biases perpetuate from pairwise comparisons to recovered rankings, they affect algorithmic decision making. In this paper, we introduce the problem of fairness-aware ranking recovery from pairwise comparisons. We propose a group-conditioned accuracy measure which quantifies fairness of rankings recovered from pairwise comparisons. We evaluate the impact of state-of-the-art ranking recovery algorithms and sampling approaches on accuracy and fairness of the recovered rankings, using synthetic and empirical data. Our results show that Fairness-Aware PageRank and GNNRank with FA*IR post-processing effectively mitigate existing biases in pairwise comparisons and improve the overall accuracy of recovered rankings. We highlight limitations and strengths of different approaches, and provide a Python package to facilitate replication and future work on fair ranking recovery from pairwise comparisons.
title Fair Pairs: Fairness-Aware Ranking Recovery from Pairwise Comparisons
topic Computers and Society
Social and Information Networks
url https://arxiv.org/abs/2408.13034