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Preprint . 2020
License: CC BY
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ZENODO
Preprint . 2020
License: CC BY
Data sources: Datacite
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Applying Fairness Constraints on Graph Node Ranks under Personalization Bias (preprint of accepted manuscript)

Authors: Krasanakis, Emmanouil; Papadopoulos, Symeon; Kompatsiaris, Ioannis;

Applying Fairness Constraints on Graph Node Ranks under Personalization Bias (preprint of accepted manuscript)

Abstract

In this work we address algorithmic fairness concerns that arise when graph nodes are ranked based on their structural relatedness to a personalized set of query ones. In particular, we aim to mitigate disparate impact, i.e. the difference in average rank between nodes of a sensitive attribute compared to the rest, while also preserving node rank quality. To do this, we introduce a personalization editing mechanism whose parameters can be adjusted to help the ranking algorithm achieve a variety of trade-offs between fairness constraints and rank changes. In experiments across three real-world social graphs and two base ranking algorithms, our approach outperforms baseline and existing methods in uniformly mitigating disparate impact, even when personalization suffers from extreme bias. In particular, it achieves higher trade-offs between fairness and rank quality and manages to preserve most of node rank quality when a constrained amount of disparate impact is allowed.

Keywords

node ranking, disparate impact mitigation, algorithmic fairness, personalized ranking

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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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