DUCK: Distance-based Unlearning via Centroid Kinematics

Fuente: arXiv
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Hauptverfasser: Cotogni, Marco, Bonato, Jacopo, Sabetta, Luigi, Pelosin, Francesco, Nicolosi, Alessandro
Format: Preprint
Veröffentlicht: 2023
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author Cotogni, Marco
Bonato, Jacopo
Sabetta, Luigi
Pelosin, Francesco
Nicolosi, Alessandro
author_facet Cotogni, Marco
Bonato, Jacopo
Sabetta, Luigi
Pelosin, Francesco
Nicolosi, Alessandro
contents Machine Unlearning is rising as a new field, driven by the pressing necessity of ensuring privacy in modern artificial intelligence models. This technique primarily aims to eradicate any residual influence of a specific subset of data from the knowledge acquired by a neural model during its training. This work introduces a novel unlearning algorithm, denoted as Distance-based Unlearning via Centroid Kinematics (DUCK), which employs metric learning to guide the removal of samples matching the nearest incorrect centroid in the embedding space. Evaluation of the algorithm's performance is conducted across various benchmark datasets in two distinct scenarios, class removal, and homogeneous sampling removal, obtaining state-of-the-art performance. We also introduce a novel metric, called Adaptive Unlearning Score (AUS), encompassing not only the efficacy of the unlearning process in forgetting target data but also quantifying the performance loss relative to the original model. Additionally, we conducted a thorough investigation of the unlearning mechanism in DUCK, examining its impact on the organization of the feature space and employing explainable AI techniques for deeper insights.
format Preprint
id arxiv_https___arxiv_org_abs_2312_02052
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle DUCK: Distance-based Unlearning via Centroid Kinematics
Cotogni, Marco
Bonato, Jacopo
Sabetta, Luigi
Pelosin, Francesco
Nicolosi, Alessandro
Computer Vision and Pattern Recognition
Machine Learning
Machine Unlearning is rising as a new field, driven by the pressing necessity of ensuring privacy in modern artificial intelligence models. This technique primarily aims to eradicate any residual influence of a specific subset of data from the knowledge acquired by a neural model during its training. This work introduces a novel unlearning algorithm, denoted as Distance-based Unlearning via Centroid Kinematics (DUCK), which employs metric learning to guide the removal of samples matching the nearest incorrect centroid in the embedding space. Evaluation of the algorithm's performance is conducted across various benchmark datasets in two distinct scenarios, class removal, and homogeneous sampling removal, obtaining state-of-the-art performance. We also introduce a novel metric, called Adaptive Unlearning Score (AUS), encompassing not only the efficacy of the unlearning process in forgetting target data but also quantifying the performance loss relative to the original model. Additionally, we conducted a thorough investigation of the unlearning mechanism in DUCK, examining its impact on the organization of the feature space and employing explainable AI techniques for deeper insights.
title DUCK: Distance-based Unlearning via Centroid Kinematics
topic Computer Vision and Pattern Recognition
Machine Learning
url https://arxiv.org/abs/2312.02052