Incentivizing Time-Aware Fairness in Data Sharing

Fuente: arXiv
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Autores principales: Chen, Jiangwei, Pham, Kieu Thao Nguyen, Sim, Rachael Hwee Ling, Verma, Arun, Wu, Zhaoxuan, Foo, Chuan-Sheng, Low, Bryan Kian Hsiang
Formato: Preprint
Publicado: 2025
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author Chen, Jiangwei
Pham, Kieu Thao Nguyen
Sim, Rachael Hwee Ling
Verma, Arun
Wu, Zhaoxuan
Foo, Chuan-Sheng
Low, Bryan Kian Hsiang
author_facet Chen, Jiangwei
Pham, Kieu Thao Nguyen
Sim, Rachael Hwee Ling
Verma, Arun
Wu, Zhaoxuan
Foo, Chuan-Sheng
Low, Bryan Kian Hsiang
contents In collaborative data sharing and machine learning, multiple parties aggregate their data resources to train a machine learning model with better model performance. However, as the parties incur data collection costs, they are only willing to do so when guaranteed incentives, such as fairness and individual rationality. Existing frameworks assume that all parties join the collaboration simultaneously, which does not hold in many real-world scenarios. Due to the long processing time for data cleaning, difficulty in overcoming legal barriers, or unawareness, the parties may join the collaboration at different times. In this work, we propose the following perspective: As a party who joins earlier incurs higher risk and encourages the contribution from other wait-and-see parties, that party should receive a reward of higher value for sharing data earlier. To this end, we propose a fair and time-aware data sharing framework, including novel time-aware incentives. We develop new methods for deciding reward values to satisfy these incentives. We further illustrate how to generate model rewards that realize the reward values and empirically demonstrate the properties of our methods on synthetic and real-world datasets.
format Preprint
id arxiv_https___arxiv_org_abs_2510_09240
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Incentivizing Time-Aware Fairness in Data Sharing
Chen, Jiangwei
Pham, Kieu Thao Nguyen
Sim, Rachael Hwee Ling
Verma, Arun
Wu, Zhaoxuan
Foo, Chuan-Sheng
Low, Bryan Kian Hsiang
Machine Learning
Computer Science and Game Theory
In collaborative data sharing and machine learning, multiple parties aggregate their data resources to train a machine learning model with better model performance. However, as the parties incur data collection costs, they are only willing to do so when guaranteed incentives, such as fairness and individual rationality. Existing frameworks assume that all parties join the collaboration simultaneously, which does not hold in many real-world scenarios. Due to the long processing time for data cleaning, difficulty in overcoming legal barriers, or unawareness, the parties may join the collaboration at different times. In this work, we propose the following perspective: As a party who joins earlier incurs higher risk and encourages the contribution from other wait-and-see parties, that party should receive a reward of higher value for sharing data earlier. To this end, we propose a fair and time-aware data sharing framework, including novel time-aware incentives. We develop new methods for deciding reward values to satisfy these incentives. We further illustrate how to generate model rewards that realize the reward values and empirically demonstrate the properties of our methods on synthetic and real-world datasets.
title Incentivizing Time-Aware Fairness in Data Sharing
topic Machine Learning
Computer Science and Game Theory
url https://arxiv.org/abs/2510.09240