When unlearning is free: leveraging low influence points to reduce computational costs

Fuente: arXiv
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Hauptverfasser: Kleiman, Anat, Fisher, Robert, Deaner, Ben, Wieder, Udi
Format: Preprint
Veröffentlicht: 2025
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author Kleiman, Anat
Fisher, Robert
Deaner, Ben
Wieder, Udi
author_facet Kleiman, Anat
Fisher, Robert
Deaner, Ben
Wieder, Udi
contents As concerns around data privacy in machine learning grow, the ability to unlearn, or remove, specific data points from trained models becomes increasingly important. While state of the art unlearning methods have emerged in response, they typically treat all points in the forget set equally. In this work, we challenge this approach by asking whether points that have a negligible impact on the model's learning need to be removed. Through a comparative analysis of influence functions across language and vision tasks, we identify subsets of training data with negligible impact on model outputs. Leveraging this insight, we propose an efficient unlearning framework that reduces the size of datasets before unlearning leading to significant computational savings (up to approximately 50 percent) on real world empirical examples.
format Preprint
id arxiv_https___arxiv_org_abs_2512_05254
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle When unlearning is free: leveraging low influence points to reduce computational costs
Kleiman, Anat
Fisher, Robert
Deaner, Ben
Wieder, Udi
Machine Learning
As concerns around data privacy in machine learning grow, the ability to unlearn, or remove, specific data points from trained models becomes increasingly important. While state of the art unlearning methods have emerged in response, they typically treat all points in the forget set equally. In this work, we challenge this approach by asking whether points that have a negligible impact on the model's learning need to be removed. Through a comparative analysis of influence functions across language and vision tasks, we identify subsets of training data with negligible impact on model outputs. Leveraging this insight, we propose an efficient unlearning framework that reduces the size of datasets before unlearning leading to significant computational savings (up to approximately 50 percent) on real world empirical examples.
title When unlearning is free: leveraging low influence points to reduce computational costs
topic Machine Learning
url https://arxiv.org/abs/2512.05254