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We present a mechanism for detecting adversarial examples based on data representations taken from the hidden layers of the target network. For this purpose, we train individual autoencoders at intermediate layers of the target network.…

Machine Learning · Computer Science 2020-06-18 Bartosz Wójcik , Paweł Morawiecki , Marek Śmieja , Tomasz Krzyżek , Przemysław Spurek , Jacek Tabor

The rapid rise of IoT and Big Data has facilitated copious data driven applications to enhance our quality of life. However, the omnipresent and all-encompassing nature of the data collection can generate privacy concerns. Hence, there is a…

Machine Learning · Computer Science 2021-09-09 Mert Al , Semih Yagli , Sun-Yuan Kung

This study develops a novel framework for privacy-preserving data analytics, addressing the critical challenge of balancing data utility with privacy concerns. We introduce three sophisticated algorithms: a Noise-Infusion Technique tailored…

Cryptography and Security · Computer Science 2024-04-26 Zahir Alsulaimawi

A key concern for AI safety remains understudied in the machine learning (ML) literature: how can we ensure users of ML models do not leverage predictions on incorrect personal data to harm others? This is particularly pertinent given the…

Machine Learning · Computer Science 2025-10-01 Muhammad H. Ashiq , Peter Triantafillou , Hung Yun Tseng , Grigoris G. Chrysos

We address the problem of defending predictive models, such as machine learning classifiers (Defender models), against membership inference attacks, in both the black-box and white-box setting, when the trainer and the trained model are…

Machine Learning · Computer Science 2022-02-07 Joseph Pedersen , Rafael Muñoz-Gómez , Jiangnan Huang , Haozhe Sun , Wei-Wei Tu , Isabelle Guyon

We present an approach to quantify and compare the privacy-accuracy trade-off for differentially private Variational Autoencoders. Our work complements previous work in two aspects. First, we evaluate the the strong reconstruction MI attack…

Cryptography and Security · Computer Science 2022-04-19 Daniel Bernau , Jonas Robl , Florian Kerschbaum

In this paper, we first give an introduction to the theoretical basis of the privacy-utility equilibrium in federated learning based on Bayesian privacy definitions and total variation distance privacy definitions. We then present the…

Machine Learning · Computer Science 2024-07-10 Xiaojin Zhang , Mingcong Xu , Wei Chen

We consider the problem of obfuscating sensitive information while preserving utility, and we propose a machine learning approach inspired by the generative adversarial networks paradigm. The idea is to set up two nets: the generator, that…

Machine Learning · Computer Science 2020-10-27 Marco Romanelli , Konstantinos Chatzikokolakis , Catuscia Palamidessi

The collection and sharing of genomic data are becoming increasingly commonplace in research, clinical, and direct-to-consumer settings. The computational protocols typically adopted to protect individual privacy include sharing summary…

Cryptography and Security · Computer Science 2023-02-06 Rajagopal Venkatesaramani , Zhiyu Wan , Bradley A. Malin , Yevgeniy Vorobeychik

Data holders are increasingly seeking to protect their user's privacy, whilst still maximizing their ability to produce machine models with high quality predictions. In this work, we empirically evaluate various implementations of…

Cryptography and Security · Computer Science 2020-09-16 Benjamin Zi Hao Zhao , Mohamed Ali Kaafar , Nicolas Kourtellis

Adversarial learning is a widely used technique in fair representation learning to remove the biases on sensitive attributes from data representations. It usually requires to incorporate the sensitive attribute labels as prediction targets.…

Machine Learning · Computer Science 2022-04-04 Chuhan Wu , Fangzhao Wu , Tao Qi , Yongfeng Huang

Image and video-capturing technologies have permeated our every-day life. Such technologies can continuously monitor individuals' expressions in real-life settings, affording us new insights into their emotional states and transitions, thus…

Machine Learning · Computer Science 2020-01-20 Vansh Narula , Zhangyang , Wang , Theodora Chaspari

Machine learning models are prone to memorizing sensitive data, making them vulnerable to membership inference attacks in which an adversary aims to guess if an input sample was used to train the model. In this paper, we show that prior…

Cryptography and Security · Computer Science 2020-12-10 Liwei Song , Prateek Mittal

It is becoming increasingly clear that users should own and control their data. Utility providers are also becoming more interested in guaranteeing data privacy. As such, users and utility providers should collaborate in data privacy, a…

Machine Learning · Statistics 2018-05-22 Martin Bertran , Natalia Martinez , Afroditi Papadaki , Qiang Qiu , Miguel Rodrigues , Guillermo Sapiro

Ensuring privacy during inference stage is crucial to prevent malicious third parties from reconstructing users' private inputs from outputs of public models. Despite a large body of literature on privacy preserving learning (which ensures…

Cryptography and Security · Computer Science 2024-12-02 Fengwei Tian , Ravi Tandon

Machine learning models, especially deep neural networks have been shown to be susceptible to privacy attacks such as membership inference where an adversary can detect whether a data point was used for training a black-box model. Such…

Machine Learning · Computer Science 2020-07-20 Shruti Tople , Amit Sharma , Aditya Nori

In this paper, we design and evaluate a convolutional autoencoder that perturbs an input face image to impart privacy to a subject. Specifically, the proposed autoencoder transforms an input face image such that the transformed image can be…

Computer Vision and Pattern Recognition · Computer Science 2018-05-04 Vahid Mirjalili , Sebastian Raschka , Anoop Namboodiri , Arun Ross

The success of deep learning partially benefits from the availability of various large-scale datasets. These datasets are often crowdsourced from individual users and contain private information like gender, age, etc. The emerging privacy…

Machine Learning · Computer Science 2020-09-01 Ang Li , Yixiao Duan , Huanrui Yang , Yiran Chen , Jianlei Yang

Differentially private training algorithms provide protection against one of the most popular attacks in machine learning: the membership inference attack. However, these privacy algorithms incur a loss of the model's classification…

Cryptography and Security · Computer Science 2021-10-13 Jiaxiang Liu , Simon Oya , Florian Kerschbaum

Growing leakage and misuse of visual information raise security and privacy concerns, which promotes the development of information protection. Existing adversarial perturbations-based methods mainly focus on the de-identification against…

Computer Vision and Pattern Recognition · Computer Science 2023-08-29 Zhigang Su , Dawei Zhou , Nannan Wangu , Decheng Li , Zhen Wang , Xinbo Gao