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arXiv research

A locally-built, LLM-digested index of recent arXiv papers in quant finance, geometry/topology, and statistical ML — keyword search served straight from SQLite on this machine.

168,742 papers · 148 categories

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104208312416 · Jun 202019922001200920172026
48 results for adversarial images

New defense method against physical attacks on image classification models.

problem Defending against physically realizable attacks on image classification models.
method Proposed a new abstract adversarial model, rectangular occlusion attacks, and developed two approaches for efficiently computing adversarial examples.
result Adversarial training using the new attack yields robust image classification models against physical attacks.

New method generates realistic adversarial images with smaller perturbations.

problem Generating realistic adversarial images with small perturbations.
method Imposes spatial distortions (scaling, rotation, shear, translation) in addition to perturbations.
result Produces visually more realistic attacks that deceive classifiers without affecting human predictions.

Transform images with adversarial examples for robust classification.

problem Adversarial examples mislead deep neural networks in image classification.
method Transform input images with adversarial examples from a pre-trained model.
result Significantly more robust against a wide range of attacks compared to state-of-the-art methods.

We propose an approach to distinguish between correct and incorrect image classifications. Our approach can detect misclassifications which either occur unintentionally\it{unintentionally} ("natural errors"), or due to intentional adversarial attacks\it{intentional~adversarial~attacks} ("adversarial errors"), both in a single unified framework\it{unified~framework}. Our appr…

2019-02-01abs ↗pdf ↗

ScoreAG generates unrestricted adversarial images maintaining semantic integrity.

problem Limited robustness evaluations due to p\ell_p-norm constraints.
method Score-Based Adversarial Generation (ScoreAG) using score-based generative models.
result ScoreAG improves robustness assessments across multiple benchmarks.

TensorShield defends images from adversarial attacks using tensor decomposition.

problem Adversarial attacks on images can fool deep neural networks.
method Tensor decomposition to find low-rank approximations of images, reducing high-frequency perturbations.
result TensorShield outperforms existing methods like SLQ by 14% against FGSM attacks.

We study two important concepts in adversarial deep learning---adversarial training and generative adversarial network (GAN). Adversarial training is the technique used to improve the robustness of discriminator by combining adversarial attacker and discriminator in the training phase. GAN is commonly used for image ge…

2018-07-27abs ↗pdf ↗

New defense method inspired by encryption improves visual classification accuracy.

problem Conventional defenses reduce accuracy and are defeated by obfuscated gradients.
method Block-wise pixel shuffling with secret key for training and test images.
result Achieves high accuracy (91.55%) on clean images and (89.66%) on adversarial examples.

This work proposes a novel autoencoder for fusing visible and infrared images.

problem Challenging task to combine spatial and spectral information from visible and infrared images.
method Spatially constrained adversarial autoencoder with residual architecture and adversarial regularizer.
result Generates a more realistic fused image with enhanced spatial and spectral information.

New method makes neural networks more resilient to location-optimized adversarial patches.

problem Neural networks' vulnerability to adversarial patches that are visible but still effective.
method Developed a practical approach to optimize patch locations and applied adversarial training.
result Significantly improved robustness against adversarial patches on CIFAR10 and GTSRB.

Proposes a new method to generate unrestricted adversarial examples.

problem Generating unrestricted adversarial examples without norm constraints.
method Leveraging state-of-the-art generative models to manipulate image fine-grained aspects.
result Our adversarial images look indistinguishable from natural images and can bypass certified defenses.

DNCF framework recovers real scenes from imperfect images robustly.

problem Recovering real scenes from imperfect images.
method Nonparametric deep network that learns physical image formation equations.
result DNCF framework robustly defends against adversarial attacks.

Enhances image-to-image translation using adversarial latent space.

problem Image-to-image translation task in computer vision.
method Introduces an adversarial discriminator on the latent representation to enforce similar latent space distributions.
result Significantly outperforms competing approaches on MNIST and USPS domain adaptation tasks.

We present Generative Adversarial Capsule Network (CapsuleGAN), a framework that uses capsule networks (CapsNets) instead of the standard convolutional neural networks (CNNs) as discriminators within the generative adversarial network (GAN) setting, while modeling image data. We provide guidelines for designing CapsNet…

2018-02-17abs ↗pdf ↗

Over the last few years, the phenomenon of adversarial examples --- maliciously constructed inputs that fool trained machine learning models --- has captured the attention of the research community, especially when the adversary is restricted to small modifications of a correctly handled input. Less surprisingly, image…

2019-01-29abs ↗pdf ↗

New method generates universal adversarial perturbations across different image sources.

problem Certifying robustness of deep learning models with universal adversarial perturbations across various image sources.
method Few-shot learning approach using bilevel optimization and learning-to-optimize techniques.
result Improved attack success rate and faster performance compared to existing methods.

Survey of GANs and autoencoders, addressing mode collapse and likelihood issues.

problem Addressing mode collapse and likelihood issues in GANs and autoencoders.
method Explains various GAN and autoencoder variants, their applications, and methods to resolve issues.
result Various methods to resolve mode collapse and improve likelihood in GANs and autoencoders.

NegToMe uses images to guide text-based models away from unwanted visual elements.

problem Insufficient text-based adversarial guidance for complex visual concepts.
method Negative token merging (NegToMe) using visual features from reference images.
result Significantly enhances output diversity and reduces visual similarity to copyrighted content.

Defense against Wasserstein adversarial attacks using randomized smoothing.

problem Certified robustness against Wasserstein adversarial attacks.
method Randomized smoothing applied to the space of flows between images, bounding Wasserstein distance by L_1 distance.
result Significantly improved accuracy under Wasserstein adversarial attacks compared to unprotected models.

Adversarial perturbations are more effective in Y-channel of YCbCr color space.

problem Vulnerability of deep models to adversarial perturbations in images.
method Proposed ResUpNet defense that removes perturbations only from the Y-channel of YCbCr color space.
result ResUpNet achieves the best balance between defense and maintaining original image accuracy.

Recently, researchers have started decomposing deep neural network models according to their semantics or functions. Recent work has shown the effectiveness of decomposed functional blocks for defending adversarial attacks, which add small input perturbation to the input image to fool the DNN models. This work proposes…

2019-04-17abs ↗pdf ↗

Spectral images captured by satellites and radio-telescopes are analyzed to obtain information about geological compositions distributions, distant asters as well as undersea terrain. Spectral images usually contain tens to hundreds of continuous narrow spectral bands and are widely used in various fields. But the vast…

2018-02-07abs ↗pdf ↗

This paper introduces a method to make deep neural networks more robust to adversarial attacks.

problem Deep neural networks are vulnerable to adversarial attacks, leading to incorrect classifications.
method Introduces sensible adversarial learning to balance robustness and natural accuracy.
result Demonstrates that the Bayes classifier is the most robust multi-class classifier under sensible adversarial learning.

Adversarially-trained models transfer better in limited data scenarios.

problem Improving transfer learning performance with limited data.
method Adversarially-train deep nets, freeze early layers, fine-tune last layers, observe shape vs texture bias.
result Adversarially-trained models transfer better than non-adversarially-trained models, especially with limited data.