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Localized adversarial patches aim to induce misclassification in machine learning models by arbitrarily modifying pixels within a restricted region of an image. Such attacks can be realized in the physical world by attaching the adversarial…

Computer Vision and Pattern Recognition · Computer Science 2021-04-01 Chong Xiang , Arjun Nitin Bhagoji , Vikash Sehwag , Prateek Mittal

Deep neural networks (DNNs) are now commonly used in many domains. However, they are vulnerable to adversarial attacks: carefully crafted perturbations on data inputs that can fool a model into making incorrect predictions. Despite…

Machine Learning · Computer Science 2020-09-09 Nilaksh Das , Haekyu Park , Zijie J. Wang , Fred Hohman , Robert Firstman , Emily Rogers , Duen Horng Chau

Deep learning image classification is vulnerable to adversarial attack, even if the attacker changes just a small patch of the image. We propose a defense against patch attacks based on partially occluding the image around each candidate…

Machine Learning · Computer Science 2020-04-30 Michael McCoyd , Won Park , Steven Chen , Neil Shah , Ryan Roggenkemper , Minjune Hwang , Jason Xinyu Liu , David Wagner

The last decades have seen a growth in the number of cyber-attacks with severe economic and privacy damages, which reveals the need for network intrusion detection approaches to assist in preventing cyber-attacks and reducing their risks.…

Cryptography and Security · Computer Science 2023-10-11 Hamdi Friji , Alexis Olivereau , Mireille Sarkiss

Advances in deep learning have resulted in steady progress in computer vision with improved accuracy on tasks such as object detection and semantic segmentation. Nevertheless, deep neural networks are vulnerable to adversarial attacks, thus…

Computer Vision and Pattern Recognition · Computer Science 2023-02-03 Hemang Chawla , Arnav Varma , Elahe Arani , Bahram Zonooz

Deep visual models are susceptible to adversarial perturbations to inputs. Although these signals are carefully crafted, they still appear noise-like patterns to humans. This observation has led to the argument that deep visual…

Computer Vision and Pattern Recognition · Computer Science 2021-06-22 Naveed Akhtar , Muhammad A. A. K. Jalwana , Mohammed Bennamoun , Ajmal Mian

Though Convolutional Neural Networks (CNNs) have surpassed human-level performance on tasks such as object classification and face verification, they can easily be fooled by adversarial attacks. These attacks add a small perturbation to the…

Machine Learning · Computer Science 2018-03-26 Rajeev Ranjan , Swami Sankaranarayanan , Carlos D. Castillo , Rama Chellappa

Due to the importance of robustness in many real-world optimization problems, the field of robust optimization has gained a lot of attention over the past decade. We concentrate on maximum flow problems and introduce a novel robust…

Discrete Mathematics · Computer Science 2016-01-15 Jannik Matuschke , S. Thomas McCormick , Gianpaolo Oriolo , Britta Peis , Martin Skutella

Spiking Neural Networks (SNNs), despite being energy-efficient when implemented on neuromorphic hardware and coupled with event-based Dynamic Vision Sensors (DVS), are vulnerable to security threats, such as adversarial attacks, i.e., small…

Computer Vision and Pattern Recognition · Computer Science 2021-07-02 Alberto Marchisio , Giacomo Pira , Maurizio Martina , Guido Masera , Muhammad Shafique

Deep neural networks have been proved that they are vulnerable to adversarial examples, which are generated by adding human-imperceptible perturbations to images. To defend these adversarial examples, various detection based methods have…

Computer Vision and Pattern Recognition · Computer Science 2021-02-24 Kejiang Chen , Yuefeng Chen , Hang Zhou , Chuan Qin , Xiaofeng Mao , Weiming Zhang , Nenghai Yu

Adversarial attacks can mislead deep learning models to make false predictions by implanting small perturbations to the original input that are imperceptible to the human eye, which poses a huge security threat to the computer vision…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Junbin Fang , You Jiang , Canjian Jiang , Zoe L. Jiang , Siu-Ming Yiu , Chuanyi Liu

With the proposition of neural networks for point clouds, deep learning has started to shine in the field of 3D object recognition while researchers have shown an increased interest to investigate the reliability of point cloud networks by…

Computer Vision and Pattern Recognition · Computer Science 2022-03-24 Hanxiao Tan , Helena Kotthaus

Adversarial patches are images designed to fool otherwise well-performing neural network-based computer vision models. Although these attacks were initially conceived of and studied digitally, in that the raw pixel values of the image were…

Computer Vision and Pattern Recognition · Computer Science 2022-06-28 Gavin S. Hartnett , Li Ang Zhang , Caolionn O'Connell , Andrew J. Lohn , Jair Aguirre

Deep neural networks (DNNs) have been shown to be vulnerable to adversarial attacks -- subtle, perceptually indistinguishable perturbations of inputs that change the response of the model. In the context of vision, we hypothesize that an…

Computer Vision and Pattern Recognition · Computer Science 2023-08-03 Muhammad A. Shah , Bhiksha Raj

Optical flow estimation is a well-studied topic for automated driving applications. Many outstanding optical flow estimation methods have been proposed, but they become erroneous when tested in challenging scenarios that are commonly…

Computer Vision and Pattern Recognition · Computer Science 2023-01-12 Shihao Shen , Louis Kerofsky , Senthil Yogamani

Adversarial patches exemplify the tangible manifestation of the threat posed by adversarial attacks on Machine Learning (ML) models in real-world scenarios. Robustness against these attacks is of the utmost importance when designing…

Computer Vision and Pattern Recognition · Computer Science 2023-12-04 Bilel Tarchoun , Quazi Mishkatul Alam , Nael Abu-Ghazaleh , Ihsen Alouani

Most of the top performing action recognition methods use optical flow as a "black box" input. Here we take a deeper look at the combination of flow and action recognition, and investigate why optical flow is helpful, what makes a flow…

Computer Vision and Pattern Recognition · Computer Science 2017-12-25 Laura Sevilla-Lara , Yiyi Liao , Fatma Guney , Varun Jampani , Andreas Geiger , Michael J. Black

Gathering data and identifying events in various traffic situations remains an essential challenge for the systematic evaluation of a perception system's performance. Analyzing large-scale, typically unstructured, multi-modal, time series…

Computer Vision and Pattern Recognition · Computer Science 2024-08-05 Tayssir Bouraffa , Elias Kjellberg Carlson , Erik Wessman , Ali Nouri , Pierre Lamart , Christian Berger

Recent research has revealed that the security of deep neural networks that directly process 3D point clouds to classify objects can be threatened by adversarial samples. Although existing adversarial attack methods achieve high success…

Computer Vision and Pattern Recognition · Computer Science 2021-10-11 Atrin Arya , Hanieh Naderi , Shohreh Kasaei

In the Network Flow Interdiction problem an adversary attacks a network in order to minimize the maximum s-t-flow. Very little is known about the approximatibility of this problem despite decades of interest in it. We present the first…

Data Structures and Algorithms · Computer Science 2015-11-10 Stephen R. Chestnut , Rico Zenklusen