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Existing NLP datasets contain various biases, and models tend to quickly learn those biases, which in turn limits their robustness. Existing approaches to improve robustness against dataset biases mostly focus on changing the training…

Computation and Language · Computer Science 2020-10-26 Nafise Sadat Moosavi , Marcel de Boer , Prasetya Ajie Utama , Iryna Gurevych

This work tackles an intriguing and fundamental open challenge in representation learning: Given a well-trained deep learning model, can it be reprogrammed to enhance its robustness against adversarial or noisy input perturbations without…

Machine Learning · Computer Science 2024-10-08 Zhichao Hou , MohamadAli Torkamani , Hamid Krim , Xiaorui Liu

Pretrained language models (PLMs) are today the primary model for natural language processing. Despite their impressive downstream performance, it can be difficult to apply PLMs to new languages, a barrier to making their capabilities…

Computation and Language · Computer Science 2024-01-15 Yihong Chen , Kelly Marchisio , Roberta Raileanu , David Ifeoluwa Adelani , Pontus Stenetorp , Sebastian Riedel , Mikel Artetxe

This work investigates a novel approach to boost adversarial robustness and generalization by incorporating structural prior into the design of deep learning models. Specifically, our study surprisingly reveals that existing dictionary…

Machine Learning · Computer Science 2025-02-04 Zhichao Hou , Weizhi Gao , Hamid Krim , Xiaorui Liu

The increasing size of Deep Neural Networks (DNNs) poses a pressing need for model compression, particularly when employed on resource constrained devices. Concurrently, the susceptibility of DNNs to adversarial attacks presents another…

Machine Learning · Computer Science 2023-08-17 Brijesh Vora , Kartik Patwari , Syed Mahbub Hafiz , Zubair Shafiq , Chen-Nee Chuah

In communication systems, there are many tasks, like modulation recognition, which rely on Deep Neural Networks (DNNs) models. However, these models have been shown to be susceptible to adversarial perturbations, namely imperceptible…

Signal Processing · Electrical Eng. & Systems 2021-05-31 Javier Maroto , Gérôme Bovet , Pascal Frossard

Despite advances in AI alignment, large language models (LLMs) remain vulnerable to adversarial attacks or jailbreaking, in which adversaries can modify prompts to induce unwanted behavior. While some defenses have been proposed, they have…

Machine Learning · Computer Science 2024-11-11 Andy Zhou , Bo Li , Haohan Wang

Pre-trained Language Models (PLMs) have achieved remarkable performance on diverse NLP tasks through pre-training and fine-tuning. However, fine-tuning the model with a large number of parameters on limited downstream datasets often leads…

Computation and Language · Computer Science 2025-05-13 Mihyeon Kim , Juhyoung Park , Youngbin Kim

The rapid expansion of research on Large Language Model (LLM) safety and robustness has produced a fragmented and oftentimes buggy ecosystem of implementations, datasets, and evaluation methods. This fragmentation makes reproducibility and…

Artificial Intelligence · Computer Science 2025-11-07 Tim Beyer , Jonas Dornbusch , Jakob Steimle , Moritz Ladenburger , Leo Schwinn , Stephan Günnemann

Despite extraordinary progress, current machine learning systems have been shown to be brittle against adversarial examples: seemingly innocuous but carefully crafted perturbations of test examples that cause machine learning predictors to…

Machine Learning · Computer Science 2023-06-14 Omar Montasser

Deep transformer neural network models have improved the predictive accuracy of intelligent text processing systems in the biomedical domain. They have obtained state-of-the-art performance scores on a wide variety of biomedical and…

Computation and Language · Computer Science 2021-11-17 Milad Moradi , Matthias Samwald

Many adversarial defense methods have been proposed to enhance the adversarial robustness of natural language processing models. However, most of them introduce additional pre-set linguistic knowledge and assume that the synonym candidates…

Computation and Language · Computer Science 2024-02-28 Yichen Yang , Xin Liu , Kun He

In realistic environments, speech is usually interfered by various noise and reverberation, which dramatically degrades the performance of automatic speech recognition (ASR) systems. To alleviate this issue, the commonest way is to use a…

Sound · Computer Science 2018-05-04 Bin Liu , Shuai Nie , Yaping Zhang , Dengfeng Ke , Shan Liang , Wenju Liu1

Deep neural networks (DNNs) are found to be vulnerable to adversarial noise. They are typically misled by adversarial samples to make wrong predictions. To alleviate this negative effect, in this paper, we investigate the dependence between…

Machine Learning · Computer Science 2022-07-26 Dawei Zhou , Nannan Wang , Xinbo Gao , Bo Han , Xiaoyu Wang , Yibing Zhan , Tongliang Liu

Adversarial Training (AT) with Projected Gradient Descent (PGD) is an effective approach for improving the robustness of the deep neural networks. However, PGD AT has been shown to suffer from two main limitations: i) high computational…

Computer Vision and Pattern Recognition · Computer Science 2020-12-29 Ahmadreza Jeddi , Mohammad Javad Shafiee , Alexander Wong

The pruning objective has recently extended beyond accuracy and sparsity to robustness in language models. Despite this, existing methods struggle to enhance robustness against adversarial attacks when continually increasing model sparsity…

Computation and Language · Computer Science 2024-01-12 Jianwei Li , Qi Lei , Wei Cheng , Dongkuan Xu

Large visual language models (LVLMs) have demonstrated excellent instruction-following capabilities, yet remain vulnerable to stealthy backdoor attacks when finetuned using contaminated data. Existing backdoor defense techniques are usually…

Cryptography and Security · Computer Science 2025-06-09 Yuan Xun , Siyuan Liang , Xiaojun Jia , Xinwei Liu , Xiaochun Cao

Deep learning based systems are susceptible to adversarial attacks, where a small, imperceptible change at the input alters the model prediction. However, to date the majority of the approaches to detect these attacks have been designed for…

Computation and Language · Computer Science 2022-09-27 Vyas Raina , Mark Gales

Adversarial fine-tuning methods enhance adversarial robustness via fine-tuning the pre-trained model in an adversarial training manner. However, we identify that some specific latent features of adversarial samples are confused by…

Computer Vision and Pattern Recognition · Computer Science 2024-12-11 Nuoyan Zhou , Dawei Zhou , Decheng Liu , Nannan Wang , Xinbo Gao

The current landscape of defensive mechanisms for LLMs is fragmented and underdeveloped, unlike prior work on classifiers. To further promote adversarial robustness in LLMs, we propose Inverse Language Modeling (ILM), a unified framework…

Computation and Language · Computer Science 2025-10-03 Davide Gabrielli , Simone Sestito , Iacopo Masi