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Recent NLP literature pays little attention to the robustness of toxicity language predictors, while these systems are most likely to be used in adversarial contexts. This paper presents a novel adversarial attack, \texttt{ToxicTrap},…

Computation and Language · Computer Science 2024-04-16 Dmitriy Bespalov , Sourav Bhabesh , Yi Xiang , Liutong Zhou , Yanjun Qi

We introduce the first study of automatic detoxification of Russian texts to combat offensive language. Such a kind of textual style transfer can be used, for instance, for processing toxic content in social media. While much work has been…

Computation and Language · Computer Science 2021-05-20 Daryna Dementieva , Daniil Moskovskiy , Varvara Logacheva , David Dale , Olga Kozlova , Nikita Semenov , Alexander Panchenko

In spite of the successful application in many fields, machine learning models today suffer from notorious problems like vulnerability to adversarial examples. Beyond falling into the cat-and-mouse game between adversarial attack and…

Artificial Intelligence · Computer Science 2022-07-06 Jitao Sang , Xian Zhao , Jiaming Zhang , Zhiyu Lin

On the world wide web, toxic content detectors are a crucial line of defense against potentially hateful and offensive messages. As such, building highly effective classifiers that enable a safer internet is an important research area.…

Computation and Language · Computer Science 2022-02-24 Alyssa Lees , Vinh Q. Tran , Yi Tay , Jeffrey Sorensen , Jai Gupta , Donald Metzler , Lucy Vasserman

Social media platforms are plagued by harmful content such as hate speech, misinformation, and extremist rhetoric. Machine learning (ML) models are widely adopted to detect such content; however, they remain highly vulnerable to adversarial…

Machine Learning · Computer Science 2025-12-30 Yidong Chai , Yi Liu , Mohammadreza Ebrahimi , Weifeng Li , Balaji Padmanabhan

Today text classification models have been widely used. However, these classifiers are found to be easily fooled by adversarial examples. Fortunately, standard attacking methods generate adversarial texts in a pair-wise way, that is, an…

Computation and Language · Computer Science 2020-03-24 Yankun Ren , Jianbin Lin , Siliang Tang , Jun Zhou , Shuang Yang , Yuan Qi , Xiang Ren

Detecting hate speech and offensive language is essential for maintaining a safe and respectful digital environment. This study examines the limitations of state-of-the-art large language models (LLMs) in identifying offensive content…

Computation and Language · Computer Science 2024-06-19 Yunze Xiao , Yujia Hu , Kenny Tsu Wei Choo , Roy Ka-wei Lee

We introduce a grey-box adversarial attack and defence framework for sentiment classification. We address the issues of differentiability, label preservation and input reconstruction for adversarial attack and defence in one unified…

Machine Learning · Computer Science 2021-03-23 Ying Xu , Xu Zhong , Antonio Jimeno Yepes , Jey Han Lau

The online trend of the manosphere and feminist discourse on social networks requires a holistic measure of the level of sexism in an online community. This indicator is important for policymakers and moderators of online communities (e.g.,…

Social and Information Networks · Computer Science 2024-07-02 Vahid Ghafouri , Jose Such , Guillermo Suarez-Tangil

Flood of information is produced in a daily basis through the global Internet usage arising from the on-line interactive communications among users. While this situation contributes significantly to the quality of human life, unfortunately…

Computation and Language · Computer Science 2024-06-04 Spiros V. Georgakopoulos , Sotiris K. Tasoulis , Aristidis G. Vrahatis , Vassilis P. Plagianakos

Online reviews are a vital source of information when purchasing a service or a product. Opinion spammers manipulate these reviews, deliberately altering the overall perception of the service. Though there exists a corpus of online reviews,…

Artificial Intelligence · Computer Science 2020-12-25 Athirai A. Irissappane , Hanfei Yu , Yankun Shen , Anubha Agrawal , Gray Stanton

Counterspeech, i.e., responses to counteract potential harms of hateful speech, has become an increasingly popular solution to address online hate speech without censorship. However, properly countering hateful language requires countering…

Computation and Language · Computer Science 2023-11-02 Jimin Mun , Emily Allaway , Akhila Yerukola , Laura Vianna , Sarah-Jane Leslie , Maarten Sap

Today's text-to-image generative models are trained on millions of images sourced from the Internet, each paired with a detailed caption produced by Vision-Language Models (VLMs). This part of the training pipeline is critical for supplying…

Cryptography and Security · Computer Science 2025-06-30 Stanley Wu , Ronik Bhaskar , Anna Yoo Jeong Ha , Shawn Shan , Haitao Zheng , Ben Y. Zhao

Growing evidence shows that proactive content moderation supported by AI can help improve online discourse. However, we know little about designing these systems, how design impacts efficacy and user experience, and how people perceive…

Human-Computer Interaction · Computer Science 2024-01-22 Mark Warner , Angelika Strohmayer , Matthew Higgs , Husnain Rafiq , Liying Yang , Lynne Coventry

Although pre-trained language models (PrLMs) have achieved significant success, recent studies demonstrate that PrLMs are vulnerable to adversarial attacks. By generating adversarial examples with slight perturbations on different levels…

Computation and Language · Computer Science 2022-08-23 Jiayi Wang , Rongzhou Bao , Zhuosheng Zhang , Hai Zhao

Offensive or antagonistic language targeted at individuals and social groups based on their personal characteristics (also known as cyber hate speech or cyberhate) has been frequently posted and widely circulated viathe World Wide Web. This…

Computation and Language · Computer Science 2018-03-09 Wafa Alorainy , Pete Burnap , Han Liu , Matthew Williams

Generating high-quality textual adversarial examples is critical for investigating the pitfalls of natural language processing (NLP) models and further promoting their robustness. Existing attacks are usually realized through word-level or…

Computation and Language · Computer Science 2022-05-25 Yibin Lei , Yu Cao , Dianqi Li , Tianyi Zhou , Meng Fang , Mykola Pechenizkiy

Machine learning classifiers are known to be vulnerable to inputs maliciously constructed by adversaries to force misclassification. Such adversarial examples have been extensively studied in the context of computer vision applications. In…

Machine Learning · Computer Science 2017-02-09 Sandy Huang , Nicolas Papernot , Ian Goodfellow , Yan Duan , Pieter Abbeel

Recent work has demonstrated the vulnerability of modern text classifiers to universal adversarial attacks, which are input-agnostic sequences of words added to text processed by classifiers. Despite being successful, the word sequences…

Computation and Language · Computer Science 2021-04-09 Liwei Song , Xinwei Yu , Hsuan-Tung Peng , Karthik Narasimhan

As large language models become integral to high-stakes applications, ensuring their robustness and fairness is critical. Despite their success, large language models remain vulnerable to adversarial attacks, where small perturbations, such…

Artificial Intelligence · Computer Science 2026-02-02 Danqing Chen , Tobias Ladner , Ahmed Rayen Mhadhbi , Matthias Althoff