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The rapid growth in user generated content on social media has resulted in a significant rise in demand for automated content moderation. Various methods and frameworks have been proposed for the tasks of hate speech detection and toxic…

Computation and Language · Computer Science 2024-09-27 Elizaveta Korotkova , Isaac Chung

It has been shown recently that deep learning based models are effective on speech quality prediction and could outperform traditional metrics in various perspectives. Although network models have potential to be a surrogate for complex…

Sound · Computer Science 2022-11-15 Hsin-Yi Lin , Huan-Hsin Tseng , Yu Tsao

Toxicity detection mitigates the dissemination of toxic content (e.g., hateful comments, posts, and messages within online social actions) to safeguard a healthy online social environment. However, malicious users persistently develop…

Computation and Language · Computer Science 2026-03-17 Hankun Kang , Xin Miao , Jianhao Chen , Jintao Wen , Mayi Xu , Weiyu Zhang , Wenpeng Lu , Tieyun Qian

Transformer-based language models are able to generate fluent text and be efficiently adapted across various natural language generation tasks. However, language models that are pretrained on large unlabeled web text corpora have been shown…

Computation and Language · Computer Science 2022-07-28 Farshid Faal , Ketra Schmitt , Jia Yuan Yu

Recent advancements in natural language processing have highlighted the vulnerability of deep learning models to adversarial attacks. While various defence mechanisms have been proposed, there is a lack of comprehensive benchmarks that…

Computation and Language · Computer Science 2025-01-23 Yang Wang , Chenghua Lin

Thanks to advancements in deep learning, speech generation systems now power a variety of real-world applications, such as text-to-speech for individuals with speech disorders, voice chatbots in call centers, cross-linguistic speech…

The proliferation of social media platforms has led to an increase in the spread of hate speech, particularly targeting vulnerable communities. Unfortunately, existing methods for automatically identifying and blocking toxic language rely…

Computation and Language · Computer Science 2025-02-24 Shiza Ali , Jeremy Blackburn , Gianluca Stringhini

Backdoor attacks, in which a model behaves maliciously when given an attacker-specified trigger, pose a major security risk for practitioners who depend on publicly released language models. As a countermeasure, backdoor detection methods…

Computation and Language · Computer Science 2025-09-23 Jun Yan , Wenjie Jacky Mo , Xiang Ren , Robin Jia

Deepfake speech utterances can be forged by replacing one or more words in a bona fide utterance with semantically different words synthesized with speech-generative models. While a dedicated synthetic word detector could be developed, we…

Audio and Speech Processing · Electrical Eng. & Systems 2026-03-03 Hoan My Tran , Xin Wang , Wanying Ge , Xuechen Liu , Junichi Yamagishi

This work investigates the potential of undermining both fairness and detection performance in abusive language detection. In a dynamic and complex digital world, it is crucial to investigate the vulnerabilities of these detection models to…

Computation and Language · Computer Science 2023-12-07 Yueqing Liang , Lu Cheng , Ali Payani , Kai Shu

Pretrained language models have significantly advanced performance across various natural language processing tasks. However, adversarial attacks continue to pose a critical challenge to systems built using these models, as they can be…

Computation and Language · Computer Science 2025-05-20 Zhenhao Li , Huichi Zhou , Marek Rei , Lucia Specia

While significant progress has been made using machine learning algorithms to detect hate speech, important technical challenges still remain to be solved in order to bring their performance closer to human accuracy. We investigate several…

Machine Learning · Computer Science 2020-12-25 Vlad Sandulescu

Recent advances in AI-generated voices have intensified the challenge of detecting deepfake audio, posing risks for scams and the spread of disinformation. To tackle this issue, we establish the largest public voice dataset to date, named…

Large language models (LLMs) require robust toxicity evaluation beyond explicit wording. This setting remains underexplored in Chinese, where toxicity may combine semantic indirectness with surface obfuscation. We introduce Chinese Implicit…

Computation and Language · Computer Science 2026-05-22 Jingyi Kang , Junyu Lu , Bo Xu , Hongbo Wang , Linlin zong , Roy Ka-Wei Lee , Hongfei Lin

Deep neural networks are vulnerable to adversarial attacks, such as backdoor attacks in which a malicious adversary compromises a model during training such that specific behaviour can be triggered at test time by attaching a specific word…

Cryptography and Security · Computer Science 2022-10-21 You Guo , Jun Wang , Trevor Cohn

Speaker verification systems are increasingly deployed in security-sensitive applications but remain highly vulnerable to adversarial perturbations. In this work, we propose the Mask Diffusion Detector (MDD), a novel adversarial detection…

Audio and Speech Processing · Electrical Eng. & Systems 2025-08-27 Yibo Bai , Sizhou Chen , Michele Panariello , Xiao-Lei Zhang , Massimiliano Todisco , Nicholas Evans

Large language models (LLMs) have become integral to our professional workflows and daily lives. Nevertheless, these machine companions of ours have a critical flaw: the huge amount of data which endows them with vast and diverse knowledge,…

Computation and Language · Computer Science 2024-05-21 Tinh Son Luong , Thanh-Thien Le , Linh Ngo Van , Thien Huu Nguyen

With the increasing growth of social media, people have started relying heavily on the information shared therein to form opinions and make decisions. While such a reliance is motivation for a variety of parties to promote information, it…

Computation and Language · Computer Science 2019-12-17 Rahul Radhakrishnan Iyer , Katia Sycara

Adversarial purification is a successful defense mechanism against adversarial attacks without requiring knowledge of the form of the incoming attack. Generally, adversarial purification aims to remove the adversarial perturbations…

Computation and Language · Computer Science 2023-05-04 Linyang Li , Demin Song , Xipeng Qiu

The widespread dissemination of toxic online posts is increasingly damaging to society. However, research on detecting toxic language in Chinese has lagged significantly. Existing datasets lack fine-grained annotation of toxic types and…

Computation and Language · Computer Science 2023-05-09 Junyu Lu , Bo Xu , Xiaokun Zhang , Changrong Min , Liang Yang , Hongfei Lin