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Recently deep neural networks (DNNs) have achieved significant success in real-world image super-resolution (SR). However, adversarial image samples with quasi-imperceptible noises could threaten deep learning SR models. In this paper, we…

计算机视觉与模式识别 · 计算机科学 2022-08-02 Jiutao Yue , Haofeng Li , Pengxu Wei , Guanbin Li , Liang Lin

Randomized smoothing (RS) is popular for providing certified robustness guarantees against adversarial attacks. The average certified radius (ACR) has emerged as a widely used metric for tracking progress in RS. However, in this work, for…

机器学习 · 计算机科学 2025-06-06 Chenhao Sun , Yuhao Mao , Mark Niklas Müller , Martin Vechev

We present a certified defense to clean-label poisoning attacks under $\ell_2$-norm. These attacks work by injecting a small number of poisoning samples (e.g., 1%) that contain bounded adversarial perturbations into the training data to…

密码学与安全 · 计算机科学 2025-06-03 Sanghyun Hong , Nicholas Carlini , Alexey Kurakin

Machine Learning (ML)-based detectors are becoming essential to counter the proliferation of malware. However, common ML algorithms are not designed to cope with the dynamic nature of real-world settings, where both legitimate and malicious…

A reliable application of deep neural network classifiers requires robustness certificates against adversarial perturbations. Gaussian smoothing is a widely analyzed approach to certifying robustness against norm-bounded perturbations,…

机器学习 · 计算机科学 2024-09-23 Hossein Goli , Farzan Farnia

Top-k predictions are used in many real-world applications such as machine learning as a service, recommender systems, and web searches. $\ell_0$-norm adversarial perturbation characterizes an attack that arbitrarily modifies some features…

密码学与安全 · 计算机科学 2022-06-07 Jinyuan Jia , Binghui Wang , Xiaoyu Cao , Hongbin Liu , Neil Zhenqiang Gong

We consider the sample complexity of learning with adversarial robustness. Most prior theoretical results for this problem have considered a setting where different classes in the data are close together or overlapping. Motivated by some…

机器学习 · 计算机科学 2023-01-19 Robi Bhattacharjee , Somesh Jha , Kamalika Chaudhuri

In spam and malware detection, attackers exploit randomization to obfuscate malicious data and increase their chances of evading detection at test time; e.g., malware code is typically obfuscated using random strings or byte sequences to…

机器学习 · 计算机科学 2016-09-07 Samuel Rota Bulò , Battista Biggio , Ignazio Pillai , Marcello Pelillo , Fabio Roli

The use of neural networks in safety-critical systems requires safe and robust models, due to the existence of adversarial attacks. Knowing the minimal adversarial perturbation of any input x, or, equivalently, knowing the distance of x…

机器学习 · 计算机科学 2022-09-12 Fabio Brau , Giulio Rossolini , Alessandro Biondi , Giorgio Buttazzo

Certified defenses such as randomized smoothing have shown promise towards building reliable machine learning systems against $\ell_p$-norm bounded attacks. However, existing methods are insufficient or unable to provably defend against…

机器学习 · 计算机科学 2022-06-30 Zhongkai Hao , Chengyang Ying , Yinpeng Dong , Hang Su , Jun Zhu , Jian Song

Deep Neural Network (DNN) trained by the gradient descent method is known to be vulnerable to maliciously perturbed adversarial input, aka. adversarial attack. As one of the countermeasures against adversarial attack, increasing the model…

计算机视觉与模式识别 · 计算机科学 2019-05-31 Adnan Siraj Rakin , Zhezhi He , Li Yang , Yanzhi Wang , Liqiang Wang , Deliang Fan

Despite their numerous successes, there are many scenarios where adversarial risk metrics do not provide an appropriate measure of robustness. For example, test-time perturbations may occur in a probabilistic manner rather than being…

机器学习 · 统计学 2021-08-03 Benjie Wang , Stefan Webb , Tom Rainforth

As a result of decades of research, Windows malware detection is approached through a plethora of techniques. However, there is an ongoing mismatch between academia -- which pursues an optimal performances in terms of detection rate and low…

密码学与安全 · 计算机科学 2024-12-20 Andrea Ponte , Dmitrijs Trizna , Luca Demetrio , Battista Biggio , Ivan Tesfai Ogbu , Fabio Roli

Developing simple, sample-efficient learning algorithms for robust classification is a pressing issue in today's tech-dominated world, and current theoretical techniques requiring exponential sample complexity and complicated improper…

机器学习 · 计算机科学 2023-02-07 Robi Bhattacharjee , Max Hopkins , Akash Kumar , Hantao Yu , Kamalika Chaudhuri

Kernel smoothing is a highly flexible and popular approach for estimation of probability density and intensity functions of continuous spatial data. In this role it also forms an integral part of estimation of functionals such as the…

统计方法学 · 统计学 2017-07-24 Tilman M. Davies , Jonathan C. Marshall , Martin L. Hazelton

We propose a method for nonparametric density estimation that exhibits robustness to contamination of the training sample. This method achieves robustness by combining a traditional kernel density estimator (KDE) with ideas from classical…

机器学习 · 统计学 2011-09-07 JooSeuk Kim , Clayton D. Scott

Recent researches have shown that machine learning based malware detection algorithms are very vulnerable under the attacks of adversarial examples. These works mainly focused on the detection algorithms which use features with fixed…

机器学习 · 计算机科学 2017-05-24 Weiwei Hu , Ying Tan

In security-sensitive applications, the success of machine learning depends on a thorough vetting of their resistance to adversarial data. In one pertinent, well-motivated attack scenario, an adversary may attempt to evade a deployed system…

密码学与安全 · 计算机科学 2017-08-22 Battista Biggio , Igino Corona , Davide Maiorca , Blaine Nelson , Nedim Srndic , Pavel Laskov , Giorgio Giacinto , Fabio Roli

Malware analysis involves analyzing suspicious software to detect malicious payloads. Static malware analysis, which does not require software execution, relies increasingly on machine learning techniques to achieve scalability. Although…

密码学与安全 · 计算机科学 2025-08-15 Pierre-Francois Gimenez , Sarath Sivaprasad , Mario Fritz

In this paper, we consider robust nonparametric regression using deep neural networks with ReLU activation function. While several existing theoretically justified methods are geared towards robustness against identical heavy-tailed noise…

统计方法学 · 统计学 2023-11-01 Juntong Chen