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Text classifiers are vulnerable to adversarial examples -- correctly-classified examples that are deliberately transformed to be misclassified while satisfying acceptability constraints. The conventional approach to finding adversarial…

计算与语言 · 计算机科学 2024-05-21 Tom Roth , Inigo Jauregi Unanue , Alsharif Abuadbba , Massimo Piccardi

Detecting ambiguity is important for language understanding, including uncertainty estimation, humour detection, and processing garden path sentences. We assess language models' sensitivity to ambiguity by introducing an adversarial…

计算与语言 · 计算机科学 2025-06-03 Antonia Karamolegkou , Oliver Eberle , Phillip Rust , Carina Kauf , Anders Søgaard

In this paper, we propose a new framework to detect adversarial examples motivated by the observations that random components can improve the smoothness of predictors and make it easier to simulate the output distribution of a deep neural…

机器学习 · 统计学 2024-02-26 Yao Li , Tongyi Tang , Cho-Jui Hsieh , Thomas C. M. Lee

Deep neural networks have been shown to suffer from a surprising weakness: their classification outputs can be changed by small, non-random perturbations of their inputs. This adversarial example phenomenon has been explained as originating…

机器学习 · 计算机科学 2016-08-30 Thomas Tanay , Lewis Griffin

Sarcasm detection is the task of identifying irony containing utterances in sentiment-bearing text. However, the figurative and creative nature of sarcasm poses a great challenge for affective computing systems performing sentiment…

计算与语言 · 计算机科学 2021-07-08 Hamed Yaghoobian , Hamid R. Arabnia , Khaled Rasheed

This work presents a thorough review concerning recent studies and text generation advancements using Generative Adversarial Networks. The usage of adversarial learning for text generation is promising as it provides alternatives to…

计算与语言 · 计算机科学 2022-12-22 Gustavo Henrique de Rosa , João Paulo Papa

The Generative Adversarial Network (GAN) has achieved great success in generating realistic (real-valued) synthetic data. However, convergence issues and difficulties dealing with discrete data hinder the applicability of GAN to text. We…

机器学习 · 统计学 2017-11-21 Yizhe Zhang , Zhe Gan , Kai Fan , Zhi Chen , Ricardo Henao , Dinghan Shen , Lawrence Carin

Traditional (fickle) adversarial examples involve finding a small perturbation that does not change an input's true label but confuses the classifier into outputting a different prediction. Conversely, obstinate adversarial examples occur…

计算与语言 · 计算机科学 2022-11-01 Hannah Chen , Yangfeng Ji , David Evans

Adversarial detection protects models from adversarial attacks by refusing suspicious test samples. However, current detection methods often suffer from weak generalization: their effectiveness tends to degrade significantly when applied to…

密码学与安全 · 计算机科学 2025-06-05 Sicong Han , Chenhao Lin , Zhengyu Zhao , Xiyuan Wang , Xinlei He , Qian Li , Cong Wang , Qian Wang , Chao Shen

We design, implement, and evaluate adversarial decoding, a new, generic text generation technique that produces readable documents for different adversarial objectives. Prior methods either produce easily detectable gibberish, or cannot…

计算与语言 · 计算机科学 2025-03-07 Collin Zhang , Tingwei Zhang , Vitaly Shmatikov

Online customer reviews on large-scale e-commerce websites, represent a rich and varied source of opinion data, often providing subjective qualitative assessments of product usage that can help potential customers to discover features that…

计算与语言 · 计算机科学 2019-10-23 Manirupa Das , Zhen Wang , Evan Jaffe , Madhuja Chattopadhyay , Eric Fosler-Lussier , Rajiv Ramnath

Open set domain adaptation refers to the scenario that the target domain contains categories that do not exist in the source domain. It is a more common situation in the reality compared with the typical closed set domain adaptation where…

机器学习 · 计算机科学 2020-11-06 Sitong Mao , Xiao Shen , Fu-lai Chung

Stance detection models may tend to rely on dataset bias in the text part as a shortcut and thus fail to sufficiently learn the interaction between the targets and texts. Recent debiasing methods usually treated features learned by small…

计算与语言 · 计算机科学 2022-12-21 Jianhua Yuan , Yanyan Zhao , Bing Qin

The identification of out-of-distribution content is critical to the successful implementation of neural networks. Watchdog techniques have been developed to support the detection of these inputs, but the performance can be limited by the…

机器学习 · 计算机科学 2023-05-03 Glauco Amigo , Justin M. Bui , Charles Baylis , Robert J. Marks

Statistical learning on biological data can be challenging due to confounding variables in sample collection and processing. Confounders can cause models to generalize poorly and result in inaccurate prediction performance metrics if models…

机器学习 · 计算机科学 2018-12-13 Tzu-Yu Liu , Ajay Kannan , Adam Drake , Marvin Bertin , Nathan Wan

Anomaly detection is a significant problem faced in several research areas. Detecting and correctly classifying something unseen as anomalous is a challenging problem that has been tackled in many different manners over the years.…

机器学习 · 计算机科学 2021-09-15 Federico Di Mattia , Paolo Galeone , Michele De Simoni , Emanuele Ghelfi

Adversarial training is a training scheme designed to counter adversarial attacks by augmenting the training dataset with adversarial examples. Surprisingly, several studies have observed that loss gradients from adversarially trained DNNs…

机器学习 · 计算机科学 2019-04-22 Beomsu Kim , Junghoon Seo , Taegyun Jeon

In adversarial data collection (ADC), a human workforce interacts with a model in real time, attempting to produce examples that elicit incorrect predictions. Researchers hope that models trained on these more challenging datasets will rely…

计算与语言 · 计算机科学 2021-06-03 Divyansh Kaushik , Douwe Kiela , Zachary C. Lipton , Wen-tau Yih

Online fake news profoundly distorts public judgment and erodes trust in social platforms. While existing detectors achieve competitive performance on benchmark datasets, they remain notably vulnerable to malicious comments designed…

机器学习 · 计算机科学 2026-02-06 Zhao Tong , Chunlin Gong , Yimeng Gu , Haichao Shi , Qiang Liu , Shu Wu , Xiao-Yu Zhang

Generative networks are fundamentally different in their aim and methods compared to CNNs for classification, segmentation, or object detection. They have initially not been meant to be an image analysis tool, but to produce naturally…

计算机视觉与模式识别 · 计算机科学 2022-07-11 Markus Wenzel