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Main Authors: Mahi, Ishrak Hamim, Ferdous, Siam, Badhon, Md Sakib Sadman, Omi, Nabid Hasan, Hemel, Md Habibun Nabi, Sadeque, Farig Yousuf, Reza, Md. Tanzim
Format: Preprint
Published: 2026
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Online Access:https://arxiv.org/abs/2604.27804
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author Mahi, Ishrak Hamim
Ferdous, Siam
Badhon, Md Sakib Sadman
Omi, Nabid Hasan
Hemel, Md Habibun Nabi
Sadeque, Farig Yousuf
Reza, Md. Tanzim
author_facet Mahi, Ishrak Hamim
Ferdous, Siam
Badhon, Md Sakib Sadman
Omi, Nabid Hasan
Hemel, Md Habibun Nabi
Sadeque, Farig Yousuf
Reza, Md. Tanzim
contents The rapid proliferation of image generation models and other artificial intelligence (AI) systems has intensified concerns regarding data privacy and user consent. As the availability of public datasets declines, major technology companies increasingly rely on proprietary or private user data for model training, raising ethical and legal challenges when users request the deletion of their data after it has influenced a trained model. Machine unlearning seeks to address this issue by enabling the removal of specific data from models without complete retraining. This study investigates a modified SISA (Sharded, Isolated, Sliced, and Aggregated) framework designed to achieve class-level unlearning in Convolutional Neural Network (CNN) architectures. The proposed framework incorporates a reinforced replay mechanism and a gating network to enhance selective forgetting efficiency. Experimental evaluations across multiple image datasets and CNN configurations demonstrate that the modified SISA approach enables effective class unlearning while preserving model performance and reducing retraining overhead. The findings highlight the potential of SISA-based unlearning for deployment in privacy-sensitive AI applications. The implementation is publicly available at https://github.com/SiamFS/ sisa-class-unlearning.
format Preprint
id arxiv_https___arxiv_org_abs_2604_27804
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Machine Unlearning for Class Removal through SISA-based Deep Neural Network Architectures
Mahi, Ishrak Hamim
Ferdous, Siam
Badhon, Md Sakib Sadman
Omi, Nabid Hasan
Hemel, Md Habibun Nabi
Sadeque, Farig Yousuf
Reza, Md. Tanzim
Computer Vision and Pattern Recognition
Cryptography and Security
Machine Learning
68T05, 68T07
I.2.6; I.5.1; K.4.1
The rapid proliferation of image generation models and other artificial intelligence (AI) systems has intensified concerns regarding data privacy and user consent. As the availability of public datasets declines, major technology companies increasingly rely on proprietary or private user data for model training, raising ethical and legal challenges when users request the deletion of their data after it has influenced a trained model. Machine unlearning seeks to address this issue by enabling the removal of specific data from models without complete retraining. This study investigates a modified SISA (Sharded, Isolated, Sliced, and Aggregated) framework designed to achieve class-level unlearning in Convolutional Neural Network (CNN) architectures. The proposed framework incorporates a reinforced replay mechanism and a gating network to enhance selective forgetting efficiency. Experimental evaluations across multiple image datasets and CNN configurations demonstrate that the modified SISA approach enables effective class unlearning while preserving model performance and reducing retraining overhead. The findings highlight the potential of SISA-based unlearning for deployment in privacy-sensitive AI applications. The implementation is publicly available at https://github.com/SiamFS/ sisa-class-unlearning.
title Machine Unlearning for Class Removal through SISA-based Deep Neural Network Architectures
topic Computer Vision and Pattern Recognition
Cryptography and Security
Machine Learning
68T05, 68T07
I.2.6; I.5.1; K.4.1
url https://arxiv.org/abs/2604.27804