Positive-Unlabeled Diffusion Models for Preventing Sensitive Data Generation

Fuente: arXiv
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Autores principales: Takahashi, Hiroshi, Iwata, Tomoharu, Kumagai, Atsutoshi, Yamanaka, Yuuki, Yamashita, Tomoya
Formato: Preprint
Publicado: 2025
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author Takahashi, Hiroshi
Iwata, Tomoharu
Kumagai, Atsutoshi
Yamanaka, Yuuki
Yamashita, Tomoya
author_facet Takahashi, Hiroshi
Iwata, Tomoharu
Kumagai, Atsutoshi
Yamanaka, Yuuki
Yamashita, Tomoya
contents Diffusion models are powerful generative models but often generate sensitive data that are unwanted by users, mainly because the unlabeled training data frequently contain such sensitive data. Since labeling all sensitive data in the large-scale unlabeled training data is impractical, we address this problem by using a small amount of labeled sensitive data. In this paper, we propose positive-unlabeled diffusion models, which prevent the generation of sensitive data using unlabeled and sensitive data. Our approach can approximate the evidence lower bound (ELBO) for normal (negative) data using only unlabeled and sensitive (positive) data. Therefore, even without labeled normal data, we can maximize the ELBO for normal data and minimize it for labeled sensitive data, ensuring the generation of only normal data. Through experiments across various datasets and settings, we demonstrated that our approach can prevent the generation of sensitive images without compromising image quality.
format Preprint
id arxiv_https___arxiv_org_abs_2503_03789
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Positive-Unlabeled Diffusion Models for Preventing Sensitive Data Generation
Takahashi, Hiroshi
Iwata, Tomoharu
Kumagai, Atsutoshi
Yamanaka, Yuuki
Yamashita, Tomoya
Machine Learning
Artificial Intelligence
Diffusion models are powerful generative models but often generate sensitive data that are unwanted by users, mainly because the unlabeled training data frequently contain such sensitive data. Since labeling all sensitive data in the large-scale unlabeled training data is impractical, we address this problem by using a small amount of labeled sensitive data. In this paper, we propose positive-unlabeled diffusion models, which prevent the generation of sensitive data using unlabeled and sensitive data. Our approach can approximate the evidence lower bound (ELBO) for normal (negative) data using only unlabeled and sensitive (positive) data. Therefore, even without labeled normal data, we can maximize the ELBO for normal data and minimize it for labeled sensitive data, ensuring the generation of only normal data. Through experiments across various datasets and settings, we demonstrated that our approach can prevent the generation of sensitive images without compromising image quality.
title Positive-Unlabeled Diffusion Models for Preventing Sensitive Data Generation
topic Machine Learning
Artificial Intelligence
url https://arxiv.org/abs/2503.03789