FROG: Fair Removal on Graphs

Fuente: arXiv
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Bibliographic Details
Main Authors: Chen, Ziheng, Cheng, Jiali, Amiri, Hadi, Nag, Kaushiki, Lin, Lu, Liu, Sijia, Sun, Xiangguo, Tolomei, Gabriele
Format: Preprint
Published: 2025
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author Chen, Ziheng
Cheng, Jiali
Amiri, Hadi
Nag, Kaushiki
Lin, Lu
Liu, Sijia
Sun, Xiangguo
Tolomei, Gabriele
author_facet Chen, Ziheng
Cheng, Jiali
Amiri, Hadi
Nag, Kaushiki
Lin, Lu
Liu, Sijia
Sun, Xiangguo
Tolomei, Gabriele
contents With growing emphasis on privacy regulations, machine unlearning has become increasingly critical in real-world applications such as social networks and recommender systems, many of which are naturally represented as graphs. However, existing graph unlearning methods often modify nodes or edges indiscriminately, overlooking their impact on fairness. For instance, forgetting links between users of different genders may inadvertently exacerbate group disparities. To address this issue, we propose a novel framework that jointly optimizes both the graph structure and the model to achieve fair unlearning. Our method rewires the graph by removing redundant edges that hinder forgetting while preserving fairness through targeted edge augmentation. We further introduce a worst-case evaluation mechanism to assess robustness under challenging scenarios. Experiments on real-world datasets show that our approach achieves more effective and fair unlearning than existing baselines.
format Preprint
id arxiv_https___arxiv_org_abs_2503_18197
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle FROG: Fair Removal on Graphs
Chen, Ziheng
Cheng, Jiali
Amiri, Hadi
Nag, Kaushiki
Lin, Lu
Liu, Sijia
Sun, Xiangguo
Tolomei, Gabriele
Machine Learning
Artificial Intelligence
With growing emphasis on privacy regulations, machine unlearning has become increasingly critical in real-world applications such as social networks and recommender systems, many of which are naturally represented as graphs. However, existing graph unlearning methods often modify nodes or edges indiscriminately, overlooking their impact on fairness. For instance, forgetting links between users of different genders may inadvertently exacerbate group disparities. To address this issue, we propose a novel framework that jointly optimizes both the graph structure and the model to achieve fair unlearning. Our method rewires the graph by removing redundant edges that hinder forgetting while preserving fairness through targeted edge augmentation. We further introduce a worst-case evaluation mechanism to assess robustness under challenging scenarios. Experiments on real-world datasets show that our approach achieves more effective and fair unlearning than existing baselines.
title FROG: Fair Removal on Graphs
topic Machine Learning
Artificial Intelligence
url https://arxiv.org/abs/2503.18197